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VM08 Service Manual Model 8ch Digital Mixer with DSP Effects FOSTEX CORPORATION 3-2-35 Musashino, Akishima, Tokyo, Japan 196-0021 FOSTEX CORPORATION OF AMERICA 15431 Blackburn Ave., Norwalk, CA 90650, U.S.A. © PRINTED IN JAPAN DEC 1999 8288788000

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Page 1: VM08 SM Print - Diagramas dediagramas.diagramasde.com/audio/Fostex vm08_service_manual.pdf · AD+5 AD+5 AD+5 VR0 VR1 VR2 VR3 VR4 VR5 VR6 ADGND ADGND ADGND JOG0 JOG1 DGND DGND AD+5

VM08Service Manual

Model

8ch Digital Mixer with DSP Effects

FOSTEX CORPORATION 3-2-35 Musashino, Akishima, Tokyo, Japan 196-0021

FOSTEX CORPORATION OF AMERICA 15431 Blackburn Ave., Norwalk, CA 90650, U.S.A.© PRINTED IN JAPAN DEC 1999 8288788000

Page 2: VM08 SM Print - Diagramas dediagramas.diagramasde.com/audio/Fostex vm08_service_manual.pdf · AD+5 AD+5 AD+5 VR0 VR1 VR2 VR3 VR4 VR5 VR6 ADGND ADGND ADGND JOG0 JOG1 DGND DGND AD+5

31

SAFETY INSTRUCTIONS

CAUTIONRISK OF ELECTRIC SHOCK

DO NOT OPEN

TO PREVENT ELECTRIC SHOCK, MATCH

WIDE BLADE OF PLUG TO WIDE SLOT,

FULLY INSERT.

POUR ÉVITER LES CHOCS ÉLECTRIQUES,

INTRODUIRE LA LAME LA PLUS LARGE DE

LA FICHE DANS LA BORNE CORRE-

SPONDANTE DE LA PRISE ET POUSSER

JUSQU' AU FOND.

CAUTION:

ATTENTION:

The exclamation point within an equilateraltriangle is intended to alert the user to thepresence of important operating and mainte-nance (servicing) instructions in the literatureaccompanying the appliance.

The lightening flash with arrowhead symbol,within an equilateral triangle, is intended toalert the user to the presence of uninsulated“dangerous voltage” within the product's enclo-sure that may be of sufficient magnitude toconstitute a risk of electric shock to persons.

“WARNING”“TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DONOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.”

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,

DO NOT REMOVE COVER (OR BACK).

NO USER-SERVICEABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

1. Read instructions - All the safety and operating instructionsshould be read before the appliance is operated.

2. Retain instructions - The safety and operating instructionsshould be retained for future reference.

3. Heed warnings - All warnings on the appliance and in the oper-ating instructions should be adhered to.

4. Follow instructions - All operating and use instructions shouldbe followed.

5. Water and Moisture - The appliance should not be used nearwater - for example, near a bathtub, washbowl, kitchen sink,laundry tub, in a wet basement, or near a swimming pool, andthe like.

6. Carts and Stands - The appliance should be used only with acart or stand that is recommended by the manufacturer.

An appliance and cart combination shoumRÛbe moved withcare. Quick stops, excessive force, and uneven surfacesmay cause the appliance and cart combination to overturn.

7. Wall or Ceiling Mounting - The appliance should be mounted toa wall or ceiling only as recommended by the manufacturer.

8. Ventilation - The appliance should be situated so that its lo-cation or position does not interfere with its proper ventila-tion. For example, the appliance should not be situated on abed, sofa, rug, or similar surface that may block the ventila-tion openings; or, placed in a built-in installation, such as abookcase or cabinet that may impede the flow of air throughthe ventilation openings.

9. Heat - The appliance should be situated away from heatsources such as radiators, heat registers, stoves, or other ap-pliances (including amplifiers) that produce heat.

10. Power Sources - The appliance should be connected to apower supply only of the type described in the operating in-structions or as marked on the appliance.

11. Grounding or Polarization - The precautions that should betaken so that the grounding or polarization means of an appli-ance is not defeated.

12. Power Cord Protection - Power supply cords should be routedso that they are not likely to be walked on or pinched by itemsplaced upon or against them, paying particular attention tocords at plugs, convenience receptacles, and the point wherethey exit from the appliance.

13. Cleaning - The appliance should be cleaned only as recom-mended by the manufacturer.

14. Nonuse Periods - The power cord of the appliance should beunplugged from the outlet when left unused for a long period oftime.

15. Object and Liquid Entry - Care should be taken so that objectsdo not fall and liquids are not spilled into the enclosure throughopenings.

16. Damage requiring Service - The appliance should be servicedby qualified service personnel when:A. The power supply cord or the plug has been damaged;

orB. Objects have fallen, or liquid has been spilled into the

appliance; orC. The appliance has been exposed to rain; orD. The appliance does not appear to operate normally or

exhibits a marked changed in performance; orE. The appliance has been dropped, or the enclosure damaged.

17 Servicing - The user should not attempt to service the appli-ance beyond that described in the operating instructions. Allother servicing should be referred to qualified service personnel.

VM08

L R

INP

UT

(-10

~ -

50dB

V)

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(-10

~ -

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IN

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N

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8

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8. BLOCK DIAGRAM

Page 3: VM08 SM Print - Diagramas dediagramas.diagramasde.com/audio/Fostex vm08_service_manual.pdf · AD+5 AD+5 AD+5 VR0 VR1 VR2 VR3 VR4 VR5 VR6 ADGND ADGND ADGND JOG0 JOG1 DGND DGND AD+5

VM08

3

VM08

30

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DE

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1/1)

3

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TABLE OF CONTENTS

1. SPECIFICATIONS.................................................................................. 4

2. CONTROLS, INDICATORS AND CONNECTORS.......................... 5

3. SERVICE MODE ................................................................................... 6REPLACING THE BATTERY ................................................................................ 7

4. EXPLODED VIEW ................................................................................ 8FLAT CABLE CONNECTIONS .............................................................................. 8

5. PARTS LIST........................................................................................... 9

6. PCB PATTERN DRAWING............................................................... 11

7. CIRCUIT DIAGRAMS ........................................................................ 18

8. BLOCK DIAGRAM............................................................................. 31

NOTES* Parts List and circuit diagrams are given in this manual to assist the service technician in maintaining

the Model VM08.

* The following accessories are supplied with VM08 as the standard accessories.

Owner's manual : 8288448000

AC adaptor AD-9B : 8270818003 (for USA/CND)

: 8270818006 (for EUR)

: 8270818007 (for UK)

: 8270818010 (for JPN)

* Following is the packing material for the Model VM08.

PACK, SIDE, L, VM08 : 8228456000

PACK, SIDE, R, VM08 : 8228457000

CARTON, INNER, VM08 : 8228732000

CARTON, OUTER, VM08 : 8228911000

CAUTIONParts marked with this sign are safety critical components. They must always be replaced with

identical components. Refer to the Fostex Parts List and ensure exact replacement.

Page 4: VM08 SM Print - Diagramas dediagramas.diagramasde.com/audio/Fostex vm08_service_manual.pdf · AD+5 AD+5 AD+5 VR0 VR1 VR2 VR3 VR4 VR5 VR6 ADGND ADGND ADGND JOG0 JOG1 DGND DGND AD+5

VM08

4

VM08

29

1. SPECIFICATIONSDEFINITION (Specification Unit : 0 dBV = 1 Vrms)

NORMAL FADER POSITIONMaster fader 80 position (Master Fader display)Input fader 80 position (Channel Fader display)INPUT 1~4 PAN Fully CCW (L) or CW (R) positionINPUT 5/6, 7/8 PAN Center position

MIXER SECTIONINPUT 1~4

Input Level -50dBV ~ -4dBVInput Impedance 20kΩ or moreConnector Ø6mm Mono Phone Jack/Unbalanced

INPUT 5/6, 7/8Input Level -6dBVInput Impedance 20kΩ or moreConnector Ø6mm TRS Phone Jack/Unbalanced

Tip:Input 5, 7 / Ring:Input 6, 8STEREO OUTPUT (L, R)

Output Level -10dBVLoad Impedance 10kΩ or moreConnector Ø6mm Mono Phone Jack/Unbalanced

AUX SEND 1/2Output Level -10dBVLoad Impedance 10kΩ or moreConnector Ø6mm TRS Phone Jack/Unbalanced

Tip:Send 1 / Ring:Send 2PHONES OUT

Output Level 30mW MAX (32Ω load)Load Impedance 16Ω or moreConnector Ø6mm TRS Phone Jack

EQUALIZERHI (Shelving Type) ±18dB or more (10kHz)MID (peaking type, Q=1.0) ±18dB or more (1kHz)LO (Shelving Type) ±18dB or more (100Hz)

FREQUENCY RESPONSEInput 1~4 (-4dBV) -> Stereo Out (-10dBV) +1, -2dB (20Hz ~ 20kHz)Input 5~8 (-6dBV) -> Stereo Out (-10dBV) +1, -2dB (20Hz ~ 20kHz)Input 1~4 (-50dBV) -> Stereo Out (-10dBV) +1, -3dB (20Hz ~ 20kHz)Input 1~4 (-4dBV) -> Aux Send 1/2 (-10dBV) +1, -2dB (20Hz ~ 20kHz)Input 5~8 (-6dBV) -> Aux Send 1/2 (-10dBV) +1, -2dB (20Hz ~ 20kHz)Input 5~8 (-6dBV) -> Phones Out (10mW/16Ω) +1, -3dB (80Hz ~ 10kHz)

S/N (with DAT envelope filter)Input 1~4 (+8dBV) -> Stereo Out (+2dBV) 86dB or more (IHF-A)Input 5~8 (+6dBV) -> Stereo Out (+2dBV) 86dB or more (IHF-A)Input 1~4 (-38dBV) -> Stereo Out (+2dBV) 75dB or more (IHF-A)Input 1~4 (+8dBV) -> Aux Send 1/2 (+2dBV) 86dB or more (IHF-A)Input 5~8 (+6dBV) -> Aux Send 1/2 (+2dBV) 86dB or more (IHF-A)Phones Out Residual Noise (VR : Min) -85dBV or more (IHF-A)

DISTORTION (with DAT envelope filter)Input 1~4 (+6dBV) -> Stereo Out (0dBV) 0.03% or less (1kHz)Input 5~8 (+4dBV) -> Stereo Out (0dBV) 0.03% or less (1kHz)Input 1~4 (-40dBV) -> Stereo Out (0dBV) 0.08% or less (1kHz)Input 1~4 (+6dBV) -> Aux Send 1/2 (0dBV) 0.03% or less (1kHz)Input 5~8 (+4dBV) -> Aux Send 1/2 (0dBV) 0.03% or less (1kHz)Input (0dBV) -> Phones Out (20mW/16Ω) 1.0% or less (1kHz)

CROSSTALKInput 1~4 (-4dBV) -> Aux Send 1/2 (0dBV)(Non input channel is measured.) 60dB or more (1kHz)

CLICK NOISEPower ON/OFF Stereo Out -20dBVp-p or less

Aux Out -20dBVp-p or lessOther switching Stereo Out -30dBVp-p or less

Aux Out -30dBVp-p or lessSHOCK NOISE -30dBVp-p or lessLEVEL INDICATION

Type LCD Bargraph MeterNumber of Indicated Levels 10dots (-48, -30, -24, -18, -12, -9, -6, -3, -1, OL)Reference Level (-10dBV) Indication -12dB

DIGITAL SECTIONSAMPLING FREQUENCY 44.1kHzQUANTIZATION 16 bit linearA/D CONVERTER 20bit, 64-times Over Sampling, ∆∑D/A CONVERTER 24bit 128-time, Over Sampling, ∆∑S/P DIF OUT

Format IEC 60958 (S/P DIF)Connector Optical

GENERALDC IN AD-9B, DC9V, 650mA (Center : Positive)DIMENSIONS 300 (W) x 212 (D) x 70 (H) mmWEIGHT Approx. 1.2kgPOWER SUPPLY

USA/CND 120VAC, 60HzEUR/UK 230VAC, 50/60HzJPN 100VAC, 50/60Hz

* Specifications and appearance are subject to change without notice for product improvement.

DIS

PLA

Y (

2/2)

: K

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& L

ED

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

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LED

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Page 5: VM08 SM Print - Diagramas dediagramas.diagramasde.com/audio/Fostex vm08_service_manual.pdf · AD+5 AD+5 AD+5 VR0 VR1 VR2 VR3 VR4 VR5 VR6 ADGND ADGND ADGND JOG0 JOG1 DGND DGND AD+5

VM08

5

VM08

28

2. CONTROLS, INDICATORS AND CONNECTORS

ST OUTR L PHONES

1 TRIM2 TRIM3 TRIM4 TRIM

-10 -50 -10 -50 -10 -50 -10 -50

RESETOUT

S/P DIFDC IN FOOT SW AUX SEND INPUT

6/58/7

78

56

12

AD-9BONLY

9V

3 5 6421 10 117 8 9

SETUP

CLEARSTORERECALL

SCENE

EFF SELEFF1 EFF2

SCENE NO.MASTERCH

MAXOL1

6

12

••

24•48

-•

MINL

R

EFF/AUX

EQ

E1 E2 A1 A2

PAN LO MID HI1 2 3 4 5 6 7 8 L R

PHONES

LEVEL ADJUST FADER ADJUST

PAN / EQ EFF / AUX

MAXMIN

CH PARAM EDIT

CH ON/CH SEL

MAX

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

MIN

EXIT ENTER

DATAMASTER7/85/64321

8CH DIGITAL MIXER WITHDSP EFFECT

13 14 1512 16

17

18

1920

2122

232524

30292827

26

1. DC INLET connector (Center : Positive)2. S/P DIF optical output connector [Optical]3. FOOT SW jack [Ø6 mm Phone] (unlatched)4. RESET switch5. AUX SEND jack [Ø6 mm TRS Phone]

6. INPUT 7/8 jack [Ø6 mm TRS Phone]7. INPUT 5/6 jack [Ø6 mm TRS Phone]8. INPUT 1/2/3/4 jacks [Ø6 mm Phone]9. TRIM knobs 1/2/3/4

10. Stereo OUTPUT L/R jacks [Ø6 mm Phone]11. Headphone jack [Ø6 mm TRS Phone]

12. Headphone volume control knob13. Contrast adjusting knob14. LCD display15. SCENE Number display16. Status indicator17. SCENE RECALL key18. SCENE STORE key19. EFFECT 2 Select key20. EFFECT 1 Select key

21. ENTER key22. EXIT key23. DATA encoder24. INPUT faders25. MASTER fader26. CHANNEL ON/SELECT keys27. LEVEL ADJUST key28. FADER ADJUST key29. PAN/EQ select key30. EFF/AUX select keyD

ISP

LAY

(1/

2) :

LC

D

SEG1SEG2SEG3SEG4SEG5SEG6SEG7SEG8SEG9

SEG10SEG11SEG12SEG13SEG14SEG15SEG16SEG17SEG18SEG19SEG20SEG21SEG22SEG23SEG24SEG25SEG26SEG27SEG28SEG29SEG30SEG31SEG32SEG33SEG34SEG35SEG36SEG37SEG38SEG39SEG40

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41

SE

G22

SE

G21

SE

G20

SE

G19

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G18

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G17

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G16

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G15

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G14

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G13

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G12

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G11

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G10

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G9

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G6

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G5

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G4

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G3

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G2

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G1

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M16

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M15

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M13

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M12

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M11

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M9

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M8

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M7

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M6

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M5

CO

M4

CO

M3

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M2

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M1

LCD

_D7

LCD

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LCD

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LCD

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LCD

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LCD

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3

2

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D+5

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GND 2

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DG

ND

D+5

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D+5

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DG

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D+5

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R25

622

0K

R25

51K R25

41K R25

31K R25

21K R25

11K R25

73K

J251

FP

C-1

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W20

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GN

D

CO

N2

D-5

D-5

R26

05K

B

25262728293031323334353637383940

80797877767574737271706968676665

SEG23SEG24SEG25SEG26SEG27SEG28SEG29SEG30SEG31SEG32SEG33SEG34SEG35SEG36SEG37SEG38

RSR/WELCD_D0LCD_D1

C28

00.

01

SE

G22

SE

G21

SE

G20

SE

G19

SE

G18

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G17

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G15

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G13

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G12

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G11

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M8

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M7

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M6

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M4

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M3

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M2

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DB

7D

B6

DB

5D

B4

DB

3D

B2

SEG23SEG24SEG25SEG26SEG27SEG28SEG29SEG30SEG31SEG32SEG33SEG34SEG35SEG36SEG37SEG38

OSCOV1V2V3V4V5CL1CL2VCCMDRSR/WEDB0DB1

U25

0H

D44

780U

U25

1LC

D_F

D4

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

> > > > > > > > > > >

DG

ND

LCD

_D0

LCD

_D1

LCD

_D2

LCD

_D3

LCD

_D4

LCD

_D5

LCD

_D6

LCD

_D7

E R/W

RS

D+5

D+5

D+9

DG

ND

D-5

SE

G[1

..40]

L202

LAM

P

DG

ND

CO

M[1

..16]

SEG1SEG2SEG3SEG4SEG5SEG6SEG7SEG8SEG9SEG10SEG11SEG12SEG13SEG14SEG15SEG16SEG17SEG18SEG19SEG20SEG21SEG22SEG23SEG24SEG25SEG26SEG27SEG28SEG29SEG30SEG31SEG32SEG33SEG34SEG35SEG36SEG37SEG38SEG39SEG40

12345678910111213141516171819202122232425262728293031323334353637383940

41424344454647484950515253545556575859606162636465666768697071727374757677787980

D+9

D+5

_2

D+5

_2

DG

ND

D+5

_2D

+5_2

R27

0N

ON

R27

10

R27

2N

ON

R27

3N

ON

C28

30.

1C

282

0.1

C28

10.

1

U25

2L7

8M05

T-T

L

L201

LAM

P

SEG5SEG4SEG3SEG2SEG1COM9COM10COM11COM12COM13COM14COM15COM16SEG6SEG7SEG8SEG9SEG10SEG16SEG37SEG28SEG29SEG40SEG13SEG18SEG23SEG28SEG33COM9COM10COM11COM12COM13COM7COM6COM5COM4COM3COM2COM1

AG

ND

_1D

GN

D

D+9

Vin

Vou

t

U25

2R

273

R27

2R

271

R27

0

D+5

_2

D+5

_1

D+9

KE

Y&

LED

D+5

_1

Page 6: VM08 SM Print - Diagramas dediagramas.diagramasde.com/audio/Fostex vm08_service_manual.pdf · AD+5 AD+5 AD+5 VR0 VR1 VR2 VR3 VR4 VR5 VR6 ADGND ADGND ADGND JOG0 JOG1 DGND DGND AD+5

VM08

6

VM08

27

AN

ALO

G O

UT

(1/

1)

2

13

2 4 3 1 2 4 3 1

6 57

2

13

2

13

3 2

8 4

1

2

13

5 67

2 4 3 1

3

2

1 5

4

1

1 2 3 4 5 6 7 8

C325 0.

01

2 3

8 4

1

1 2

J451

CO

NN

-M-8

A+

5

ST

ER

EO

_OU

T_L

+S

TE

RE

O_O

UT

_L-

ST

ER

EO

_OU

T_R

ST

ER

EO

_OU

T_R

-

MU

TE

A-5

AG

ND

W30

1C

ON

2

to D

ISP

LAY

A+

5_1

AG

ND

R33

010

K

R33

18.

2KC

330

0.01

C33

110

0/10

A+

5_1

VB

IAS

C31

147

/16

R31

13.

6K

R31

23.

6KR

313

2.4K

R41

32.

4KR

415

200

R31

520

0C

315

820P

C41

582

0P

C32

7N

ON

C42

7N

ON

AG

ND

AG

ND

AG

ND

AG

ND

A-5

A+

5

AG

ND

AG

ND

AG

ND

AG

ND

R51

0AR

K09

K12

C

AG

ND

AG

ND

AG

ND

AG

ND

AG

ND

DG

ND

AG

ND

DG

ND

D+

5_1

VB

IAS

R31

91K

R32

010

0K

R32

147

0

R42

147

0

U41

0AN

JM34

14

U41

0BN

JM34

14

R42

010

0K

R41

91K

VB

IAS

AG

ND

AG

ND

AG

ND

R51

0BR

K09

K12

C

R41

81K

R31

81K

C31

910

/16

C32

010

0/10

C42

010

0/10

C41

910

/16

C42

1N

ON

C42

322

0/10

R42

310

R32

310

R32

410

K

R42

410

K

C32

322

0/10

L413

BE

AD

L414

BE

AD

C32

1N

ON

C32

210

P

R32

24.

7K C32

410

0/10

R42

24.

7K

C42

210

P

U41

3D

TC

314T

K

U41

4D

TC

314T

K

R41

13.

6K

C41

30.

0068

C41

40.

0068R

314

200

R31

62.

4K

C31

682

0P

R41

420

0R

416

2.4K

C41

682

0P

C31

80.

01C

317

10/1

6R

317

1K

L411

BE

AD

J411

YK

B21

-507

4

J412

YK

B21

-507

4

U41

1D

TC

314T

K

U41

2D

TC

314T

K

L412

BE

AD

AG

ND

AG

ND

AG

ND

AG

ND

R41

71K

C41

710

/16

U21

0AN

JM45

65M

U21

0BN

JM45

65M

C31

30.

0068

C31

40.

0068

R41

23.

6K

C31

247

/16

C41

147

/16

C41

247

/16

MA

ST

R L

(-10

dBV

)

MA

ST

R R

(-10

dBV

)

J413

YK

B21

-507

4

PH

ON

ES

AG

NDC

328

0.01

3. SERVICE MODE3-1 Software Version CheckWhile holding down both the PAN/EQ and EFF/AUX keys, press the EFF 1 key.

• The LCD Display will show the Software Version of the VM08 for about a second,

and then return to the Normal mode display.

3-4 Fader CheckWhile holding down both the PAN/EQ and EFF/AUX keys,

press the FADER ADJUST key.

• Confirm that 1~4 channel parameter value (00~99) and the

DATA encoder parameter value (0~9) correctly appears on

the Character Display.

• Confirm that 5/6 channel parameter value (00~99) correctly

appears on the CH FADER Display.

• Confirm that 7/8 channel parameter value (00~99) correctly appears on the MASTER FADER Display.

• Confirm that Master Fader parameter value (00~99) correctly appears on the SCENE NO. Display.

• If the EXIT key is pressed, the VM08 returns to Normal mode display.

3-3 Display CheckWhile holding down both the PAN/EQ and EFF/AUX keys, press the

EXIT key.

• All the LEDs and LCD segments are supposed to start blinking.

Check if they are correctly blinking or not.

• Pressing the ENTER key will change the blinking pattern.

• Pressing the EXIT key will put the VM08 in the condition right

after powering on.

3-2 Battery CheckWhile holding down both the PAN/EQ and EFF/AUX keys, press the EFF 2 key.

• The LCD Display will show the voltage of the memory backup battery inside the

VM08 for about a second, and then return to the Normal mode display.

• If the voltage falls below 2.2V, the message “BattEmpty” will appear when powering ON.

• If the message “BattEmpty” is displayed, please replace the battery with the new

one. For exchanging procedure, please refer to page 7.

3-6 Test Scene RECALLWhile holding down both the PAN/EQ and EFF/AUX keys, press the SCENE RECALL key

• This mode is designed to use at our manufacturer exclusively. It has nothing to do with servicing the unit.

3-5 Key CheckWhile holding down both the PAN/EQ and EFF/AUX keys, press the LEVEL ADJUST key.

• Confirm that the name of the switch you press appears on the Character Display.

• If two or more switches are pressed at the same time, "NG" prompt will be displayed on the Character Display.

• If DATA encoder is rotated, the VM08 returns to Normal mode display.

MASTERCH

MASTERCH

SETUP

CLEARSTORERECALL

SCENE

EFF SELEFF1 EFF1

SCENE NO.

MAXOL1

6

12

••

24•48

-•

MINL

R

EFF/AUX

EQ

E1 E2 A1 A2

PAN LO MID HI1 2 3 4 5 6 7 8 L R

PHONES

LEVEL ADJUST FADER ADJUST

PAN / EQ EFF / AUX

MAXMIN

CH PARAM EDIT

CH ON/CH SEL

MAX

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

MIN

MAX

MIN

EXIT ENTER

DATAMASTER7/85/64321

8CH DIGITAL MIXER WITHDSP EFFECT

Blink

MASTERCH SCENE NO.

MAX

2ch1ch 4chDATA

encoder3ch

5/6ch 7/8ch MASTERR

Page 7: VM08 SM Print - Diagramas dediagramas.diagramasde.com/audio/Fostex vm08_service_manual.pdf · AD+5 AD+5 AD+5 VR0 VR1 VR2 VR3 VR4 VR5 VR6 ADGND ADGND ADGND JOG0 JOG1 DGND DGND AD+5

VM08

7

VM08

26

MA

IN (

9/9)

: A

UX

SE

ND

2

13

2 4 3 1

6 57

2

13

AU

X_S

EN

D_A

L-

AU

X_S

EN

D_A

L+

AU

X_S

EN

D_B

L-

AU

X_S

EN

D_B

L+

AU

X_S

EN

D_A

R-

AU

X_S

EN

D_A

R+

AU

X_S

EN

D_B

R-

AU

X_S

EN

D_B

R+

AU

X_S

EN

D_A

R-

AU

X_S

EN

D_A

R+

AU

X_S

EN

D_B

R-

AU

X_S

EN

D_B

R+

AU

X_S

EN

D_A

L-

AU

X_S

EN

D_A

L+

AU

X_S

EN

D_B

L-

AU

X_S

EN

D_B

L+

2 3

8 4

1

R11

13.

6K

C11

147

/16

C11

30.

0068

C12

1N

ON

U11

0AN

JM45

65M

U11

0BN

JM45

65M

C11

682

0P

C11

582

0P

C11

722

/16

R12

01K

U11

1D

TC

314T

K

L111

BE

AD

R11

910

0K

C11

80.

01

C11

90.

01

C11

40.

0068

AG

ND

AG

ND

AG

ND

AG

ND

AG

ND

C21

722

/16

R22

01K

R21

910

0K

AG

ND

AG

ND

AG

ND

U21

1D

TC

314T

K

L211

BE

AD

AG

ND

J111

YK

B21

-507

4

AG

ND

A-5

A+

5

AG

ND

C11

247

/16

C21

147

/16

C21

247

/16

R11

33.

6K

R11

52.

4K

C21

30.

0068

C21

40.

0068

AG

NDR

215

2.4K

R11

722

0R11

622

0

C22

1N

ON

C21

682

0P

R21

722

0

R21

622

0

R11

82.

4K

C21

582

0PR

218

2.4K

R11

43.

6K

R11

23.

6K

R21

13.

6K R21

33.

6K

R21

43.

6K

R21

23.

6K

AU

X S

EN

D(-

10dB

V)

AG

ND

MU

TE

MU

TE

MASTER

MASTER

3-7 Memory ClearWhile holding down both the PAN/EQ and EFF/AUX keys, press the SCENE STORE key

• Pressing the ENTER key would clear the memory and the message

“ClearMem!”appears. All the setup will be initialized.

• Pressing the key other than ENTER returns to the Normal Mix mode display (The

Scene No. 00 is displayed.) and the memory will not be initialized.

• Pressing the RESET SW would also clear the memory and the message “ClearMem!”

appears.

Gain TableThe value appears in the LCD display corresponds to the gain in dB as shown below.

CAUTION• Replacing the battery with the new one would basically

initialize the backup data.

• In order to retain the backup data, please replace the bat-

tery while powering on.

Part No. : 8239120000BATTERY, 3V, CR2032

MAIN PCB

REPLACING THE BA TTERYIf the voltage of the internal memory backup battery falls below

2.2V, the message “BattEmpty” will appear when powering ON.

INPUT 5/6, 7/8BAL

MASTER BALValue Gain (dB)

Left RightL10 0 - ∞L9 0 -36L8 0 -26L7 0 -18L6 0 -12L5 0 -8L4 0 -5L3 0 -3L2 0 -1.5L1 0 -0.5C 0 0

R1 -0.5 0R2 -1.5 0R3 -3 0R4 -5 0R5 -8 0R6 -12 0R7 -18 0R8 -26 0R9 -36 0R10 - ∞ 0

INPUT 1~4 PANValue Gain (dB)

Left RightL10 0.0 - ∞L9 -0.1 -32.0L8 -0.25 -23.5L7 -0.4 -17.6L6 -0.7 -14.1L5 -1.0 -11.3L4 -1.4 -9.0L3 -1.8 -7.1L2 -2.2 -5.5L1 -2.6 -4.2C -3.0 -3.0

R1 -4.2 -2.6R2 -5.5 -2.2R3 -7.1 -1.8R4 -9.0 -1.4R5 -11.3 -1.0R6 -14.1 -0.7R7 -17.6 -0.4R8 -23.5 -0.25R9 -32.0 -0.1

R10 - ∞ 0.0

INPUT Fader

MASTER Fader

EFFECT SendValue Gain (dB)

00 - ∞01 -72.005 -55.010 -42.515 -35.020 -28.7525 -23.030 -18.035 -15.540 -13.045 -10.550 -8.555 -7.060 -5.565 -4.070 -2.575 -1.2580 085 +1.590 +3.095 +4.6799 +6.0

Page 8: VM08 SM Print - Diagramas dediagramas.diagramasde.com/audio/Fostex vm08_service_manual.pdf · AD+5 AD+5 AD+5 VR0 VR1 VR2 VR3 VR4 VR5 VR6 ADGND ADGND ADGND JOG0 JOG1 DGND DGND AD+5

VM08

8

VM08

1

2 313

4

5

181514 16

17

6

8

7

9

20

21

10 11

19

11

12

BBT 3X8 BZn

B 3X5BZn

BBT3X8 BZn

BBT3X8 BZn

BBT3X8 BZn

BBT3X8 BZn

BBT3X8 BZn

BBT 3X8 BZn

BBT 3X8 BZn

25

4. EXPLODED VIEW

* Flat Cable ConnectionsA, MAIN PCB : J2 <-> DISPLAY PCB : J251

CABLE, FLAT, FFC, 17P, L150 (P/N 8276839615)

B, MAIN PCB : J3 <-> FADER PCB : J351

CABLE, FLAT, FFC, 17P, L200 (P/N 8276839620)

C, MAIN PCB : J5 <-> DISPLAY PCB : J252

CABLE, FLAT, FFC, 25P, L150 (P/N 8276840415)

D, MAIN PCB : J6 <-> PHONES PCB : J351

CABLE, FLAT, FFC, 8P, L150 (P/N 8276838715)

No. Part No. Description

1 8212664000 PANEL, TOP, VM082 8226239001 KNOB, FADER, N4.53 8212665000 WINDOW, LCD, VM084 8226238000 KNOB, JOG, FD-4/VM085 8274229000 PCB ASSY, FADER, VM086 8221301000 BRACKET, PHONES, VM087 8216731000 SHIELD, PHONES, VM088 8204082000 PLATE, MOUNTING, B9 8274230000 PCB ASSY, PHONES, VM0810 8274228000 PCB ASSY, DISPLAY, VM0811 8226246001 BUTTON, 7X13, LED12 8226246002 BUTTON, 7X13, N4.513 8221299000 SHIELD, MAIN, VM0814 8274227000 PCB ASSY, MAIN, VM0815 8216714000 SHIELD, EMI, VM0816 8239120000 BATTERY, 3V, CR203217 8216699000 SHEET, BATTERY, VM04/VM0818 8270818003 AC ADAPTOR, AD-9B/USA, CSA

8270818006 AC ADAPTOR, AD-9B/EUR8270818007 AC ADAPTOR, AD-9B/UK8270818010 AC ADAPTOR, AD-9B/JPN

19 8216723000 SHEET, ISOLATION, VM0820 8207012000 FOOT, FF-82221 8221300000 PANEL, BOTTOM, VM08

MA

IN (

8/9)

: A

NA

LOG

IN 2

3 2

8 4

1AG

ND

6 57

5 4 2 3 7 8 1

INP

UT

5/6

(-10

dBV

)

J501

YK

B21

-500

6A

GN

D

AG

ND

AG

ND

AG

ND

AG

ND

A+

5

1/2V

CC

L501

BE

AD

R50

162

K

C50

110

/16

C50

3N

ON

C50

5N

ON

R50

7N

ON

R50

510

K

R50

610

K

C50

40.

01

R50

40

C50

2N

ON

C50

610

/16

R50

247

K

R50

81K

R50

310

0K

U50

1AJM

2115

MU

501B

JM21

15M

AIN

5+

AIN

5-

3 2

8 4

1AG

ND

6 57

AG

ND

AG

ND

AG

ND

AG

ND

A+

5

1/2V

CC

L601

BE

AD

R60

162

K

C60

110

/16

C60

3N

ON

C60

5N

ON

R60

7N

ON

R60

510

K

R60

610

K

C60

40.

01

R60

40

C60

2N

ON

C60

610

/16

R60

247

K

R60

81K

R60

310

0K

U60

1AJM

2115

MU

601B

JM21

15M

AIN

6+

AIN

6-

3 2

8 4

1AG

ND

6 57

5 4 2 3 7 8 1

INP

UT

7/8

(-10

dBV

)

J601

YK

B21

-500

6A

GN

D

AG

ND

AG

ND

AG

ND

AG

ND

A+

5

1/2V

CC

L701

BE

AD

R70

156

K

C70

110

/16

C70

3N

ON

C70

5N

ON

R70

7N

ON

R70

510

K

R70

610

K

C70

40.

01

R70

40

C70

2N

ON

C70

610

/16

R70

224

K

R70

81K

R70

310

0K

U70

1AJM

2115

MU

701B

JM21

15M

AIN

7+

AIN

7-

3 2

8 4

1AG

ND

6 57

AG

ND

AG

ND

AG

ND

AG

ND

A+

5

1/2V

CC

L801

BE

AD

R80

156

K

C80

110

/16

C80

3N

ON

C80

5N

ON

R80

7N

ON

R80

510

K

R80

610

K

C80

40.

01

R80

40

C80

2N

ON

C80

610

/16

R80

224

K

R80

81K

R80

310

0K

U80

1AJM

2115

MU

801B

JM21

15M

AIN

8+

AIN

8-

Page 9: VM08 SM Print - Diagramas dediagramas.diagramasde.com/audio/Fostex vm08_service_manual.pdf · AD+5 AD+5 AD+5 VR0 VR1 VR2 VR3 VR4 VR5 VR6 ADGND ADGND ADGND JOG0 JOG1 DGND DGND AD+5

VM08

9

VM08

24

5. PARTS LIST8274227000 PCB ASSY, MAIN, VM08

ICsRef. No. Part No. DescriptionU001 8236541300 IC, ST, AN, DC-DC, NJM2360AMU002 8236545014 IC, ST, TSSOP, 74VHC14U003 8236502500 IC, ST, AN, RESET, NJM2103MU004 8236086201 IC, QFP, DG, CPU, VM08, MN101C28DFAU005 8236046701 IC, 220, AN, REGULATOR, TA78DM05SU006 8236570801 IC, ST, DG, DRIVER, DTB114TKU007, 008 8236570101 IC, ST, DG, DRIVER, DTC114EKU009 8236545086 IC, ST, TSSOP, 74VHC86U010 8236504900 IC, ST, DG, DIGITALOUT, TC9271FU011 8236540301 IC, ST, AN, REGULATOR, L78M05T-TLU020 8236541700 IC, ST, DG, ADDA, AK4522U021~024 8236545000 IC, ST, TSSOP, 74VHC00U025 8236545010 IC, ST, TSSOP, 74VHC10U026 8236086100 IC, QFP, DG, DSP, AK7716U030 8236086100 IC, QFP, DG, DSP, AK7716U031 8236086100 IC, QFP, DG, DSP, AK7716U032 8236084600 IC, TSOP, DG, SRAM, TC551001CFT-70LU040 8236505011 IC, ST, AN, OPAMP, NJM2115M(TEI)U101~801 8236505011 IC, ST, AN, OPAMP, NJM2115M(TEI)U102, 202 8236540500 IC, ST, AN, NJM2068MD(TEI)U110 8236541200 IC, ST, AN, OPAMP, NJM4565MU111 8236570201 IC, ST, DG, DRIVER, DTC314TKU212 8236570201 IC, ST, DG, DRIVER, DTC314TK

TRANSISTORsRef. No. Part No. DescriptionQ001, 002 8234100802 TR, VT, PNP, 2SA1150Y

DIODEsRef. No. Part No. DescriptionD001, 002 8234019612 D, VT, DSK10C-ET1D003 8234108400 D, VT, SCHOTTKEY, EK03WD004 8234019612 D, VT, DSK10C-ET1D005 8234502100 D, ST, SCHOTTKY, SB05-05CPD006, 007 8234502800 D, ST, DAN202KD008 8234019612 D, VT, DSK10C-ET1D009~011 8234502800 D, ST, DAN202K

RESISTORsRef. No. Part No. DescriptionR001~003 8230510473 RES, ST, CARBON, 1/15W, 47K, 5%R004 8230510104 RES, ST, CARBON, 1/15W, 100K, 5%R005 8230500109 RES, ST, CARBON, 1/10W, 1, 5%R006 8230510102 RES, ST, CARBON, 1/15W, 1K, 5%R007 8230510302 RES, ST, CARBON, 1/15W, 3K, 5%R008~015 8230510750 RES, ST, CARBON, 1/15W, 75, 5%R016~019 8230510101 RES, ST, CARBON, 1/15W, 100, 5%R020 8230510102 RES, ST, CARBON, 1/15W, 1K, 5%R021~025 8230510103 RES, ST, CARBON, 1/15W, 10K, 5%R026~028 nonR029 8230510103 RES, ST, CARBON, 1/15W, 10K, 5%R030 8230510103 RES, ST, CARBON, 1/15W, 10K, 5%R032 8230510103 RES, ST, CARBON, 1/15W, 10K, 5%R033, 034 8230510102 RES, ST, CARBON, 1/15W, 1K, 5%R035 8230510222 RES, ST, CARBON, 1/15W, 2.2K, 5%R036 8230510124 RES, ST, CARBON, 1/15W, 120K, 5%R037 8230510000 RES, ST, CARBON, 1/15W, 0, 5%R038, 039 8230510103 RES, ST, CARBON, 1/15W, 10K, 5%R040~049 8230510473 RES, ST, CARBON, 1/15W, 47K, 5%R050~053 8230510473 RES, ST, CARBON, 1/15W, 47K, 5%R054 8242505102 FILTER, ST, EMI, EXC3BB, 102R055~059 8230510473 RES, ST, CARBON, 1/15W, 47K, 5%R060~063 8230510331 RES, ST, CARBON, 1/15W, 330, 5%R072 8230510101 RES, ST, CARBON, 1/15W, 100, 5%R073 8230510100 RES, ST, CARBON, 1/15W, 10, 5%R074~080 8230510101 RES, ST, CARBON, 1/15W, 100, 5%R081 8230510100 RES, ST, CARBON, 1/15W, 10, 5%R101~401 8230510153 RES, ST, CARBON, 1/15W, 15K, 5%R102~402 8230510203 RES, ST, CARBON, 1/15W, 20K, 5%R103~403 8230510105 RES, ST, CARBON, 1/15W, 1M, 5%R104~404 8230510820 RES, ST, CARBON, 1/15W, 82, 5%R105~405 8230510103 RES, ST, CARBON, 1/15W, 10K, 5%R106~406 8230510103 RES, ST, CARBON, 1/15W, 10K, 5%R107~407 8230510104 RES, ST, CARBON, 1/15W, 100K, 5%R108~408 8230510563 RES, ST, CARBON, 1/15W, 56K, 5%R109~409 8230510000 RES, ST, CARBON, 1/15W, 0, 5%R110~410 8240293003 POT, PL, RT9, 20KC, EVUR111, 211 8230510362 RES, ST, CARBON, 1/15W, 3.6K, 5%R112, 212 8230510362 RES, ST, CARBON, 1/15W, 3.6K, 5%R113, 213 8230510362 RES, ST, CARBON, 1/15W, 3.6K, 5%R114, 214 8230510362 RES, ST, CARBON, 1/15W, 3.6K, 5%R115, 215 8230510242 RES, ST, CARBON, 1/15W, 2.4K, 5%R116, 216 8230510221 RES, ST, CARBON, 1/15W, 220, 5%R117, 217 8230510221 RES, ST, CARBON, 1/15W, 220, 5%R118, 218 8230510242 RES, ST, CARBON, 1/15W, 2.4K, 5%R119, 219 8230510104 RES, ST, CARBON, 1/15W, 100K, 5%R120, 220 8230510102 RES, ST, CARBON, 1/15W, 1K, 5%R150~156 8230510101 RES, ST, CARBON, 1/15W, 100, 5%R157~160 8230510331 RES, ST, CARBON, 1/15W, 330, 5%

RESISTORsRef. No. Part No. DescriptionR161 8230510100 RES, ST, CARBON, 1/15W, 10, 5%R170 8230510100 RES, ST, CARBON, 1/15W, 10, 5%R171~175 8230510101 RES, ST, CARBON, 1/15W, 100, 5%R176~179 8230510331 RES, ST, CARBON, 1/15W, 330, 5%R190 8230510100 RES, ST, CARBON, 1/15W, 10, 5%R191~193 8230510101 RES, ST, CARBON, 1/15W, 100, 5%R194~197 8230510331 RES, ST, CARBON, 1/15W, 330, 5%R501, 601 8230510623 RES, ST, CARBON, 1/15W, 62K, 5%R701, 801 8230510563 RES, ST, CARBON, 1/15W, 56K, 5%R502, 602 8230510473 RES, ST, CARBON, 1/15W, 47K, 5%R702, 802 8230510243 RES, ST, CARBON, 1/15W, 24K, 5%R503~803 8230510104 RES, ST, CARBON, 1/15W, 100K, 5%R504~804 8230510000 RES, ST, CARBON, 1/15W, 0, 5%R505~805 8230510103 RES, ST, CARBON, 1/15W, 10K, 5%R506~806 8230510103 RES, ST, CARBON, 1/15W, 10K, 5%R507~807 nonR508~808 8230510102 RES, ST, CARBON, 1/15W, 1K, 5%

CAPACITORsALU = Electrolytic

CER = Ceramic typeRef. No. Part No. DescriptionC001, 002 8233515104 CAP, ST, CER, 25V, 0.1µF, +80, CC11FC003, 004 8233512300 CAP, ST, CER, 50V, 30pF, 5%, CC11SLC005, 006 8233515104 CAP, ST, CER, 25V, 0.1µF, +80, CC11FC007~010 8233513103 CAP, ST, CER, 50V, 0.01µF, 15%, CC11RC011 8233513471 CAP, ST, CER, 50V, 470pF, 15%, CC11RC012 8232143477 CAP, VT, ALU, 16V, 470µF, 20%, SME-VBC013~016 8232142107 CAP, VT, ALU, 10V, 100µF, 20%, SME-VBC017 8232363127 CAP, VT, ALU, 6.3V, 120µF, 20%, LXV, DSC018, 019 8232143106 CAP, VT, ALU, 16V, 10µF, 20%, SME-VBC020 8232146105 CAP, VT, ALU, 50V, 1µF, 20%, SME-VBC021 8232143107 CAP, VT, ALU, 16V, 100µF, 20%, SME-VBC022~028 8233513103 CAP, ST, CER, 50V, 0.01µF, 15%, CC11RC029 8232142107 CAP, VT, ALU, 10V, 100µF, 20%, SME-VBC030~033 8233513103 CAP, ST, CER, 50V, 0.01µF, 15%, CC11RC034 8232142476 CAP, VT, ALU, 10V, 47µF, 20%, SME-VBC035, 036 8233513103 CAP, ST, CER, 50V, 0.01µF, 15%, CC11RC037 8232143106 CAP, VT, ALU, 16V, 10µF, 20%, SME-VBC040, 041 nonC043 nonC050 8232142227 CAP, VT, ALU, 10V, 220µF, 20%, SME-VBC051, 052 8232142107 CAP, VT, ALU, 10V, 100µF, 20%, SME-VBC053 8232142477 CAP, VT, ALU, 10V, 470µF, 20%, SME-VBC054, 055 nonC060, 061 8233513152 CAP, ST, CER, 50V, .0015µF, 15%, CC11RC070 8233513103 CAP, ST, CER, 50V, 0.01µF, 15%, CC11RC076, 077 8233513103 CAP, ST, CER, 50V, 0.01µF, 15%, CC11RC081 8233513103 CAP, ST, CER, 50V, 0.01µF, 15%, CC11RC083~086 8232143106 CAP, VT, ALU, 16V, 10µF, 20%, SME-VBC090~095 8233513103 CAP, ST, CER, 50V, 0.01µF, 15%, CC11RC101~401 8232143106 CAP, VT, ALU, 16V, 10µF, 20%, SME-VBC102~402 nonC103~403 8233513101 CAP, ST, CER, 50V, 100pF, 15%, CC11RC104~404 8233513103 CAP, ST, CER, 50V, 0.01µF, 15%, CC11RC105~405 8232142107 CAP, VT, ALU, 10V, 100µF, 20%, SME-VBC106~406 nonC107~407 8232143106 CAP, VT, ALU, 16V, 10µF, 20%, SME-VBC108 8233513103 CAP, ST, CER, 50V, 0.01µF, 15%, CC11RC109 8233513103 CAP, ST, CER, 50V, 0.01µF, 15%, CC11RC111, 211 8232143476 CAP, VT, ALU, 16V, 47µF, 20%, SME-VBC112, 212 8232143476 CAP, VT, ALU, 16V, 47µF, 20%, SME-VBC113, 213 8233513682 CAP, ST, CER, 50V, 0.0068µF, 15%, CC11RC114, 214 8233513682 CAP, ST, CER, 50V, 0.0068µF, 15%, CC11RC115, 215 8233513821 CAP, ST, CER, 50V, 820pF, 15%, CC11RC116, 216 8233513821 CAP, ST, CER, 50V, 820pF, 15%, CC11RC117, 217 8232143226 CAP, VT, ALU, 16V, 22µF, 20%, SME-VBC118 8233513103 CAP, ST, CER, 50V, 0.01µF, 15%, CC11RC119 8233513103 CAP, ST, CER, 50V, 0.01µF, 15%, CC11RC120~420 nonC121~421 nonC122~422 nonC123~423 8232143106 CAP, VT, ALU, 16V, 10µF, 20%, SME-VBC150~154 8233515104 CAP, ST, CER, 25V, 0.1µF, +80, CC11FC155, 156 8233512220 CAP, ST, CER, 50V, 22pF, 5%, CC11SLC157~163 8233513103 CAP, ST, CER, 50V, 0.01µF, 15%, CC11RC167~170 8232143106 CAP, VT, ALU, 16V, 10µF, 20%, SME-VBC172, 173 8233513152 CAP, ST, CER, 50V, .0015µF, 15%, CC11RC180~184 8233515104 CAP, ST, CER, 25V, 0.1µF, +80, CC11FC185~191 8233513103 CAP, ST, CER, 50V, 0.01µF, 15%, CC11RC192~195 8232143106 CAP, VT, ALU, 16V, 10µF, 20%, SME-VBC197, 198 8233513152 CAP, ST, CER, 50V, .0015µF, 15%, CC11RC250~254 8233515104 CAP, ST, CER, 25V, 0.1µF, +80, CC11FC255~261 8233513103 CAP, ST, CER, 50V, 0.01µF, 15%, CC11RC262~266 8232143106 CAP, VT, ALU, 16V, 10µF, 20%, SME-VBC268, 269 8233513152 CAP, ST, CER, 50V, .0015µF, 15%, CC11RC270 8233513103 CAP, ST, CER, 50V, 0.01µF, 15%, CC11RC308, 309 8233513103 CAP, ST, CER, 50V, 0.01µF, 15%, CC11RC501~801 8232143106 CAP, VT, ALU, 16V, 10µF, 20%, SME-VBC502~802 nonC503~803 nonC504~804 8233513103 CAP, ST, CER, 50V, 0.01µF, 15%, CC11RC505~805 nonC506~806 8232143106 CAP, VT, ALU, 16V, 10µF, 20%, SME-VB

MA

IN (

7/9)

: A

NA

LOG

IN 1

C203

2 3

8 4

1

2 4 3 1

J101

YK

B21

-507

4A

GN

D

AG

ND

AG

ND

L101

BE

AD

C10

110

/16

C10

510

0/10

R10

710

0KR

104

82

R10

90

1/2V

CC

R11

020

KC

C10

2N

ON

C10

310

0P

U10

2BN

JM20

68M

R10

31M

C10

710

/16

C12

0N

ON

C12

2N

ON

C10

6N

ON

C10

80.

01R

108

56K

R10

510

KR

106

10K

R10

115

K A+

5

AG

ND

AG

ND

AG

ND

U10

1AN

JM21

15U

101B

NJM

2115

C12

310

/16

R10

220

K

6 57

5 67

3

2

1

2 3

8 4

1

INP

UT

1(-

10dB

V ~

-50

dBV

)

AIN

1-

AIN

1+

2 4 3 1

J201

YK

B21

-507

4A

GN

D

AG

ND

AG

ND

L201

BE

AD

C20

110

/16

C20

510

0/10

R20

710

0KR

204

82

R20

90

1/2V

CC

R21

020

KC

C20

2N

ON

A+

5

AG

ND

AG

ND

A-5

C20

310

0P

C10

80.

01

C10

90.

01U10

2AN

JM20

68M

R20

31M

C20

710

/16

C22

0N

ON

C22

2N

ON

C20

6N

ON

C20

40.

01R

208

56K

R20

510

KR

206

10K

R20

115

K A+

5

AG

ND

AG

ND

AG

ND

U20

1AN

JM21

15U

201B

NJM

2115

C22

310

/16

R20

220

K

6 57

3 21

48

3

2

1

2 3

8 4

1

INP

UT

2(-

10dB

V ~

-50

dBV

)

AIN

2-

AIN

2+

2 4 3 1

J301

YK

B21

-507

4A

GN

D

AG

ND

AG

ND

L301

BE

AD

C30

110

/16

C30

510

0/10

R30

710

0KR

304

82

R30

90

1/2V

CC

R31

020

KC

C30

2N

ON

C30

310

0P

U20

2BN

JM20

68M

R30

31M

C30

710

/16

C12

0N

ON

C32

2N

ON

C30

6N

ON

C30

80.

01R

308

56K

R30

510

KR

306

10K

R30

115

K A+

5

AG

ND

AG

ND

AG

ND

U30

1AN

JM21

15U

301B

NJM

2115

C32

310

/16

R30

220

K

6 57

5 67

3

2

1

2 3

8 4

1

INP

UT

3(-

10dB

V ~

-50

dBV

)

AIN

3-

AIN

3+

2 4 3 1

J401

YK

B21

-507

4A

GN

D

AG

ND

AG

ND

L401

BE

AD

C40

110

/16

C40

510

0/10

R40

710

0KR

404

82

R40

90

1/2V

CC

R41

020

KC

C40

2N

ON

A+

5

AG

ND

AG

ND

A-5

C40

310

0P

C30

80.

01

C30

90.

01U20

2AN

JM20

68M

R40

31M

C40

710

/16

C22

0N

ON

C42

2N

ON

C40

6N

ON

C40

40.

01R

408

56K

R40

510

KR

406

10K

R40

115

K A+

5

AG

ND

AG

ND

AG

ND

U40

1AN

JM21

15U

401B

NJM

2115

C42

310

/16

R40

220

K

6 57

3 21

48

3

2

1

2 3

8 4

1

INP

UT

4(-

10dB

V ~

-50

dBV

)

AIN

4-

AIN

4+

A+

5

R38

10K

C51

100/

10C

5022

0/10

1/2V

CC

C32

0.01

C34

47/1

0C

55N

ON

C33

0.01

C31

0.01

C30

0.01

R39

10K A

GN

DA

GN

D

A+

5

U40

AN

JM21

15

D-5

AG

ND

A-5

L422

0µH

Page 10: VM08 SM Print - Diagramas dediagramas.diagramasde.com/audio/Fostex vm08_service_manual.pdf · AD+5 AD+5 AD+5 VR0 VR1 VR2 VR3 VR4 VR5 VR6 ADGND ADGND ADGND JOG0 JOG1 DGND DGND AD+5

VM08

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VM08

23

MISCELLANEOUSRef. No. Part No. DescriptionB101 8251989201 PLAIN PCB, MAIN, VM08B001 8239120000 BATTERY, 3V, CR2032B102 8239121000 HOLDER, BATTERY, BCR20H4J001 8245544000 CONN, JACK, DC INLET, YKB31-0014J002, 003 8245272017 CONN, PI, JACK, FPC, 17PJ004 8245339004 CONN, PL, JACK, PHONE, YKB21-5074J005 8245272025 CONN, PI, JACK, FPC, 25PJ006 8245272008 CONN, PI, JACK, FPC, 8PJ007 8245317000 CONN, OPT, TOTX178J101~401 8245339004 CONN, PL, JACK, PHONE, YKB21-5074J111 8245339004 CONN, PL, JACK, PHONE, YKB21-5074J501, 601 8245339009 CONN, PL, JACK, PHONE, YKB21-5006L001 8242196223 COIL, PVT, 22µH, 5%, LF5.0SL002 8242214037 COIL, PVT, 220µH, 5%, LF7.5L003 8242501121 FILTER, ST, EMI, 120, 25%, MMZ2012SL004 8242214037 COIL, PVT, 220µH, 5%, LF7.5L005 8242501102 FILTER, ST, EMI, 1K, 25%, MMZ2012SL101~801 8242501121 FILTER, ST, EMI, 120, 25%, MMZ2012SL111, 211 8242501121 FILTER, ST, EMI, 120, 25%, MMZ2012SS001 8253469000 SW, PLT, TACT, SKHVLHX001 8256171001 RESONATOR, PT, CER, 20.00MHz, KBRX002 8256170001 RESONATOR, ST, XTL, 22.579MHz, FUP-FBB3AY1601 8245340000 NUT, PHONEJACKY1602 8221328000 HEATSINK, VM08

8274228000 PCB ASSY, DISPLAY, VM08ICs

Ref. No. Part No. DescriptionU250 8236083600 IC, QFP, DG, LCD DRIVER, HD44780UU251 8256176000 MODULE, DISPLAY, LCD, FD-4/VM08U252 8236540301 IC, ST, AN, REGULATOR, L78M05T-TL

DIODEsRef. No. Part No. DescriptionD201~209 8234502800 D, ST, DAN202KD251 8234504004 OPT, VT, LED, GRN, LT3E31WD252 8234504004 OPT, VT, LED, GRN, LT3E31WD253 8234504004 OPT, VT, LED, GRN, LT3E31WD254 8234504004 OPT, VT, LED, GRN, LT3E31WD255 8234504004 OPT, VT, LED, GRN, LT3E31WD256 8234504004 OPT, VT, LED, GRN, LT3E31WD257 8234504004 OPT, VT, LED, GRN, LT3E31WD258 8234504001 OPT, VT, LED, RED, LT3D31WD259 8234504004 OPT, VT, LED, GRN, LT3E31WD260 8234504001 OPT, VT, LED, RED, LT3D31WD261 8234504003 OPT, VT, LED, YLW, LT3H31WD262 8234504003 OPT, VT, LED, YLW, LT3H31WD263 8234504003 OPT, VT, LED, YLW, LT3H31WD264 8234504003 OPT, VT, LED, YLW, LT3H31WD265 8234504001 OPT, VT, LED, RED, LT3D31W

RESISTORsRef. No. Part No. DescriptionR251~255 8230510102 RES, ST, CARBON, 1/15W, 1K, 5%R256 8230510224 RES, ST, CARBON, 1/15W, 220K, 5%R257 8230510302 RES, ST, CARBON, 1/15W, 3K, 5%R260 8240151005 POT, PI, RT9, 5KB, L20, KNOB, RK09K113R261~270 nonR271 8230510000 RES, ST, CARBON, 1/15W, 0, 5%R272, 273 non

CAPACITORsCER = Ceramic type

Ref. No. Part No. DescriptionC280 8233513103 CAP, ST, CER, 50V, 0.01µF, 15%, CC11RC281, 282 8233515104 CAP, ST, CER, 25V, 0.1µF, +80, CC11FC283 non

MISCELLANEOUSRef. No. Part No. DescriptionB102 8251989202 PLAIN PCB, DISPLAY, VM08J251 8245272117 CONN, PL, JACK, FPC, 17PJ252 8245272125 CONN, PL, JACK, FPC, 25PL201, 202 8239116000 LAMP, 5V, 75MAS201~217 8253135002 SW, PT, TACT, SKQNABW201 8276629010 CABLE ASSY, 5395-5395, 2P, 100Y101 8212611000 PLATE, REFLECT, LCD, FD-4Y102 8216705000 SHEET, LCD, A, VR800Y103 8216706000 SHEET, LCD, B, VR800

8274229000 PCB ASSY, FADER, VM08ICs

Ref. No. Part No. DescriptionU351 8253466000 SW, PI, ENCODER, EC12E24404

RESISTORsRef. No. Part No. DescriptionR351~357 8240274005 POT, PI, SL30, 10KB, RS30H111

MISCELLANEOUSRef. No. Part No. DescriptionB103 8251989004 PLAIN PCB, FADER, VM08J351 8245272117 CONN, PL, JACK, FPC, 17P

8274230000 PCB ASSY, PHONES, VM08ICs

Ref. No. Part No. DescriptionU210 8236541200 IC, ST, AN, OPAMP, NJM4565MU410 8236046500 IC, ST, AN, OPAMP, NJM3414AMTE1U411~414 8236570201 IC, ST, DG, DRIVER, DTC314TK

RESISTORsRef. No. Part No. DescriptionR311, 411 8230510362 RES, ST, CARBON, 1/15W, 3.6K, 5%R312, 412 8230510362 RES, ST, CARBON, 1/15W, 3.6K, 5%R313, 413 8230510242 RES, ST, CARBON, 1/15W, 2.4K, 5%R314, 414 8230510201 RES, ST, CARBON, 1/15W, 200, 5%R315, 415 8230510201 RES, ST, CARBON, 1/15W, 200, 5%R316, 416 8230510242 RES, ST, CARBON, 1/15W, 2.4K, 5%R317, 417 8230510102 RES, ST, CARBON, 1/15W, 1K, 5%R318, 418 8230510102 RES, ST, CARBON, 1/15W, 1K, 5%R319, 419 8230510102 RES, ST, CARBON, 1/15W, 1K, 5%R320, 420 8230510104 RES, ST, CARBON, 1/15W, 100K, 5%R321, 421 8230510471 RES, ST, CARBON, 1/15W, 470, 5%R322, 422 8230510472 RES, ST, CARBON, 1/15W, 4.7K, 5%R323, 423 8230510100 RES, ST, CARBON, 1/15W, 10, 5%R324, 424 8230510103 RES, ST, CARBON, 1/15W, 10K, 5%R330 8230510103 RES, ST, CARBON, 1/15W, 10K, 5%R331 8230510822 RES, ST, CARBON, 1/15W, 8.2K, 5%R510 8240275004 POT, PI, RT9, 50KAA, KNOB, RK09K12C

CAPACITORsALU = Electrolytic

CER = Ceramic typeRef. No. Part No. DescriptionC311, 411 8232143476 CAP, VT, ALU, 16V, 47µF, 20%, SME-VBC312, 412 8232143476 CAP, VT, ALU, 16V, 47µF, 20%, SME-VBC313, 413 8233513682 CAP, ST, CER, 50V, 0.0068µF, 15%, CC11RC314, 414 8233513682 CAP, ST, CER, 50V, 0.0068µF, 15%, CC11RC315, 415 8233513821 CAP, ST, CER, 50V, 820pF, 15%, CC11RC316, 416 8233513821 CAP, ST, CER, 50V, 820pF, 15%, CC11RC317, 417 8232143106 CAP, VT, ALU, 16V, 10µF, 20%, SME-VBC318 8233513103 CAP, ST, CER, 50V, 0.01µF, 15%, CC11RC319, 419 8232143106 CAP, VT, ALU, 16V, 10µF, 20%, SME-VBC320, 420 8232142107 CAP, VT, ALU, 10V, 100µF, 20%, SME-VBC321, 421 nonC322, 422 8233512100 CAP, ST, CER, 50V, 10pF, 5%, CC11SLC323, 423 8232142227 CAP, VT, ALU, 10V, 220µF, 20%, SME-VBC324 8232142107 CAP, VT, ALU, 10V, 100µF, 20%, SME-VBC325 8233513103 CAP, ST, CER, 50V, 0.01µF, 15%, CC11RC326 nonC327, 427 nonC328 8233513103 CAP, ST, CER, 50V, 0.01UF, 15%, CC11RC330 8233513103 CAP, ST, CER, 50V, 0.01µF, 15%, CC11RC331 8232142107 CAP, VT, ALU, 10V, 100µF, 20%, SME-VB

MISCELLANEOUSRef. No. Part No. DescriptionB104 8251989004 PLAIN PCB, PHONES, VM08J411~413 8245339004 CONN, PL, JACK, PHONE, YKB21-5074J451 8245272108 CONN, PL, JACK, FPC, 8PL411~414 8242501121 FILTER, ST, EMI, 120, 25%, MMZ2012S

MA

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6/9)

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

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21 22 23 25 26 27 28 29 32 5 6 30

20 19 18 17 16 15 14 13 3 2 31 1 12 4 11 7 10 8 24

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Page 11: VM08 SM Print - Diagramas dediagramas.diagramasde.com/audio/Fostex vm08_service_manual.pdf · AD+5 AD+5 AD+5 VR0 VR1 VR2 VR3 VR4 VR5 VR6 ADGND ADGND ADGND JOG0 JOG1 DGND DGND AD+5

VM08

11

VM08

J601

PCB.

MAI

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M08

8251

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22

6. PCB PATTERN DRAWING

MA

IN P

CB

(P

arts

Sid

e)

MA

IN (

5/9)

: D

SP

2

1 2 3 4 5 6 7 8 9 10 11 12 13 14

VD

DC

KA

2C

KA

1LB

ITF

R32

CT

G3

CT

G2

CT

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LRC

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CK

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PH

CO

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CK

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VS

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28 27 26 25 24 23 22 21 20 19 18 17 16 15

2 1 3

56

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

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ST

I1/IN

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CK

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TR

LD

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PC

LX

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10 A9

A8

SMODEEESELJX/RQSCLKSISORDYDRDYEESTDVSSDVDD/CAS/RAS/WEA0A1A2A3A4A5A6A7VDSSDVDD

AINL+AINL-

AINR+AINR-

VRADHAVDDAVSS

VRADLVCOM

VRDAHAVDDAVSS

VRDALNC

VOUTL1+VOUTL1-

NCVOUTR1+VOUTR1-

NCVOUTL2+VOUTL2-

NCVOUTR2+VOUTR2-

26272829303132333435363738394041424344454647484950

DG

ND

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C19

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MS

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MS

CK

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T_I

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2/R

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DE

C/R

ST

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P2

75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51

100999897969594939291908988878685848382818079787776

AU

X_S

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G2

Lo, C

TG

1 H

i :

DIG

ITA

L M

IXE

R[S

AM

PLI

NG

FR

EQ

EN

CY

] FS

1 Lo

, FS

2 Lo

: 4

4.1k

Hz

Page 12: VM08 SM Print - Diagramas dediagramas.diagramasde.com/audio/Fostex vm08_service_manual.pdf · AD+5 AD+5 AD+5 VR0 VR1 VR2 VR3 VR4 VR5 VR6 ADGND ADGND ADGND JOG0 JOG1 DGND DGND AD+5

VM08

12

VM08

21

MA

IN P

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(F

oil S

ide)

PC

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AIN

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08

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C80

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701

C60

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C85 C

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3

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C26

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C401

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C201

C101C122

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C54C55

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C195

C250

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C156 C155

C255 C258

C185 C186

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C259C257C256

C191C198C184C183

C187C189C188

C151

C168 C157

C154C153C152C163

C159C158C161

C323

C207C223

C123

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C407

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105

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D2

D8

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C12

C15

C13C34

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C212

C112

C111

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C91

C92 C95 C96

C270

C93 C94

C9

R36

C6

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C77 C76

C73

R61R60R63R62

R45R44R53R42R46R58R56R53

R59R57R55R52R51R50

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R41

R47

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3

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IN (

4/9)

: D

SP

1

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

TE

ST

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IT_R

ES

ET

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P_R

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OC

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DD

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16A

15A

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A8

SMODEEESELJX/RQSCLKSISORDYDRDYEESTDVSSDVDD/CAS/RAS/WEA0A1A2A3A4A5A6A7VDSSDVDD

AINL+AINL-

AINR+AINR-

VRADHAVDDAVSS

VRADLVCOM

VRDAHAVDDAVSS

VRDALNC

VOUTL1+VOUTL1-

NCVOUTR1+VOUTR1-

NCVOUTL2+VOUTL2-

NCVOUTR2+VOUTR2-

26272829303132333435363738394041424344454647484950

L5 EM

I

DG

ND

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610

0

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DE

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AIN

1-

AIN

1+

AIN

2-

AIN

2+

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1-

AIN

1+

R15

733

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173

1500

P

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215

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169

10/1

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151

0.1 AG

ND

AG

ND

AG

ND

C15

20.

1

C16

810

/16

C16

20.

01C

163

0.01

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40.

1C

153

0.1

C17

010

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DS

P1

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ST

ER

DS

P

U26

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110

A+

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R15

933

0

R15

833

0

R16

033

0

[AN

A]

[AN

A]

[AN

A]

[AN

A]

CP

U -

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PU

->

SE

LEC

TO

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>

AD

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AD

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AD

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OU

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OU

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DS

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DS

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AD

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DS

P1_

OU

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DS

P1_

OU

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R15

510

0R

154

100

R15

010

0R

151

100

R15

310

0

R15

210

0

DS

P2

->D

SP

3 ->

AD

4 ->

DS

P2(

SD

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T_D

1) -

>

DS

P2(

SIN

A_1

2) <

-

DS

P2(

SD

IN1)

<-

DS

P2(

SD

INA

) <

-

DS

P2(

SD

IND

1) <

-

DS

P <

-D

SP

<-

512

fs

DS

P <

-

LRC

KB

CK

MS

CK

LRC

KB

CK

MS

CK

/RS

T_I

NIT

1/R

ST

_CO

DE

C/R

ST

_DS

P1

75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51

100999897969594939291908988878685848382818079787776

ST

ER

EO

_OU

T_L

+S

TE

RE

O_O

UT

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ST

ER

EO

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TE

RE

O_O

UT

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ST

ER

EO

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T_L

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TE

RE

O_O

UT

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ST

ER

EO

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T_R

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TE

RE

O_O

UT

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-> C

PU

J8-

PIN

2->

CP

U J

8-P

IN3

-> C

PU

J8-

PIN

4->

CP

U J

8-P

IN5

AG

ND

C40

NO

N

SE

LEC

TO

R -

>

SE

LEC

TO

R -

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ELE

CT

OR

->

SE

LEC

TO

R <

-

SE

LEC

TO

R <

-

SE

LEC

TO

R <

-

SC

K1

SI1

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Q_D

SP

1

WR

DY

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P1

DR

DY

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P1

SO

1

SM

OD

E H

i : M

AS

TE

R M

OD

EO

PC

L H

i : S

EP

AR

AT

E M

OD

EC

TR

L Lo

: C

LOC

K O

UT

EN

AB

LE

C16

710

/16

C16

00.

01

X2

22.5

792M

Hz

C15

522

P DG

ND

DG

NDC

156

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90.

01C

157

0.01

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161

0.01

D+

5

Page 13: VM08 SM Print - Diagramas dediagramas.diagramasde.com/audio/Fostex vm08_service_manual.pdf · AD+5 AD+5 AD+5 VR0 VR1 VR2 VR3 VR4 VR5 VR6 ADGND ADGND ADGND JOG0 JOG1 DGND DGND AD+5

VM08

13

VM08

20

DIS

PLA

Y P

CB

(P

arts

Sid

e)

PC

B. D

ISP

LAY.

VM

08

S21

6S

209

S21

1S

210

S21

3S

212

S21

5

S20

8S

207

S20

6

S20

5

J252

J251

171 25

1

S20

4S

203

S20

2S

217

S20

1

S21

4

2 1

W201

TO

PH

ON

ES

R26

0

L202

L201

54 3

1

140

4180

U25

1

1 23

4 56

9 108

12 1311

VC

C

GN

D

14 7C

900.

01

U21

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VH

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9 10

U23

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SP

1

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2

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3

U23

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U24

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8

1 23

12 1311

1 23

4 56

3 6 8

12 1311

4 56

D+5

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WR

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P[1

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P[1

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WR

DY

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P2

WR

DY

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P3

DR

DY

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P1

U9C

74H

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U9D

74H

C86

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DY

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P2

DR

DY

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P3

9 108

12 1311

9 108

12 1311

9 10 118

4 56

1 23

13 2 112

5 4 36

SC

K

SI

SI1

SI2

SI3

SO

3

SO

2

RS

T_D

SP

SO

1

D+5

U21

A74

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C00

U21

B74

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U21

C74

VH

C00

U21

D74

VH

C00

R74

100

SC

K1

SC

K2

SC

K3

R75

100

R76

100

R78

100

CP

U -

>

CP

U -

>

SO

R77

100

SE

LEC

T[1

..3]

D+5

D+5

D+5

SE

LEC

T[1

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SELECT1

SELECT2

SELECT3

SELECT1

SELECT2

SELECT3

SELECT1

SELECT2

SELECT3

CP

U <

-

U22

A74

VH

C00

U25

A74

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C10

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1 2 4 5 9 10

U9A

74H

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74H

C86

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C00

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C00

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WR

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R79

100

R80

100

DR

DY

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P

WR

Q_D

SP

SC

K[1

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SI[1

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SO

[1..3

]

SC

K[1

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SI[1

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SO

[1..3

]

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Q_D

SP

1

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SP

[1..3

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T_D

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[1..3

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RQ

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P[1

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T_D

SP

[1..3

]

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SP

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3

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VC

C

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14 7C

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01

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D+5

DG

ND

VC

C

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14 7C

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01

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GN

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14 7C

930.

01

U24

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C00

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C

GN

D

14 7C

940.

01

U25

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VH

C10

VC

C

GN

D

14 7C

950.

01

U9E

74H

C86

MA

IN (

3/9)

: S

ELE

CT

OR

Page 14: VM08 SM Print - Diagramas dediagramas.diagramasde.com/audio/Fostex vm08_service_manual.pdf · AD+5 AD+5 AD+5 VR0 VR1 VR2 VR3 VR4 VR5 VR6 ADGND ADGND ADGND JOG0 JOG1 DGND DGND AD+5

VM08

14

VM08

19

DIS

PLA

Y P

CB

(F

oil S

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PC

B. D

ISP

LAY.

VM

08

S21

1S

210

LMP

VO

LTA

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R27

09V

00

5VA

00

5VB

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R27

1R

272

R27

3U

252

U25

2

R27

3

R27

0R

272

R27

1

D260 D262

S21

3

S20

1S

217

S20

2

D20

9D

201

D20

2D

206

D20

3D

204

D20

7D

208

D20

5

D259

C283

C282

C280

L201

L201

R257

R255

R269R261R262R263R264

R265R266R267R268

2 1

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R251R252R253R254R256

1

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D264D265

D258

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4

S21

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D263

S21

2

C28

1

1 2 3 4 5 6 7 8 9 10 11 12

VR

EF

HA

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AA

GN

DD

IF0

DIF

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VC

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TL

CM

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EP

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CLK

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M1

DE

M0

SM

UT

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DT

O

24 23 22 21 20 19 18 17 16 15 14 13

AIN

1+A

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AIN

2+A

IN2-

AIN

3+A

IN3-

AIN

4+A

IN4-

AIN

5+A

IN5-

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6+A

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7+A

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DS

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P2_

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DS

P3_

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DS

P3_

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DS

P3_

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EC

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3S

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CK

3

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T_IN

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T_C

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EC

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P1_

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T1D

SP

3_O

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DS

P1_

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AD

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T1

DA

2_IN

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DS

P2_

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T1D

SP

2_O

UT2

DS

P2_

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T3D

SP

2_O

UT4

MS

CK

BC

KLR

CK

WR

DY

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P2

DR

DY

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P2

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Q_D

SP

2/R

ST_

DS

P2

SO

2S

I2S

CK

2

AU

X_S

EN

D_A

L+A

UX

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ND

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AU

X_S

EN

D_A

R+

AU

X_S

EN

D_A

R-

AU

X_S

EN

D_B

L+A

UX

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ND

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AU

X_S

EN

D_B

R+

AU

X_S

EN

D_B

R-

AIN

3+A

IN3-

AIN

4+A

IN4-

AU

X_S

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D_A

L+A

UX

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ND

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AU

X_S

EN

D_A

R+

AU

X_S

EN

D_A

R-

AU

X_S

EN

D_B

L+A

UX

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ND

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AU

X_S

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D_B

R+

AU

X_S

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D_B

R-

WR

DY

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DY

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SP

2/R

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2S

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CK

2

AD

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AD

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AD

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T4

DS

P1_

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T1

DS

P1_

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T2

DS

P1_

OU

T3

DS

P1_

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AD

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DS

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DA

1_IN

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ST

ER

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T_L

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RE

O_O

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O_O

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T_I

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DE

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DR

DY

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P1

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P1

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1S

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CK

1

MS

CK

BC

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T_C

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EC

MU

TEM

UTE

<- C

PU

AN

ALO

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UT

ST

ER

EO

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T_L

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TE

RE

O_O

UT

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ST

ER

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T_R

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TE

RE

O_O

UT

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SC

K1

SC

K2

SC

K3

SI1

SI2

SI3

SO

1S

O2

SO

3

SC

K[1

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SI[1

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SO

[1..3

]

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Q_D

SP

[1..3

]/R

ST

_DS

P[1

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WR

DY

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P[1

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DR

DY

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P[1

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SE

LEC

T3

SE

LEC

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SE

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SC

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WR

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SP

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3

WR

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P2

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P3

<- C

PU

<- C

PU

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PU

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PU

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PU

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PU

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PU

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SC

KS

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4522

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4

R60

330

C60

1500

PR

81 10C

8610

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C81

0.01

C76

0.01

C85

10/1

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A+

5

AG

ND

C61

1500

P

C84

10/1

6

C70

0.01

BC

KLR

CK

R61

330

R63

330

A+

5

AG

ND

DG

ND

R62

330

R72

100

C77

0.01

C83

10/1

6

R73 10

D+

5

DG

ND

AD

SE

TT

ING

[SY

ST

EM

CLO

CK

] C

MO

DE

N.C

.:512

fs/4

4.1k

Hz

[AU

DIO

SE

RIA

L IN

TE

RF

AC

E F

OR

MA

T]

DIF

1 Lo

, DIF

0 H

i : 2

0bit/

MS

B/L

R-H

L/S

CLK

>40

fs

SE

LEC

TO

R

MA

IN (

2/9)

: P

RO

CE

SS

OR

Page 15: VM08 SM Print - Diagramas dediagramas.diagramasde.com/audio/Fostex vm08_service_manual.pdf · AD+5 AD+5 AD+5 VR0 VR1 VR2 VR3 VR4 VR5 VR6 ADGND ADGND ADGND JOG0 JOG1 DGND DGND AD+5

VM08

15

VM08

18

FA

DE

R P

CB

(P

arts

Sid

e)

PCB.

FAD

ER. V

M08

8251

989

004

R35

1R

352

CH

1C

H2

CH

3

R35

3

CH

4

R35

4

CH

5/6

R35

5

CH

7/8

R35

6

MA

ST

ER

R35

7

J351

117U

351

7. CIRCUIT DIAGRAMS

R49

47K

LED7

2 3 1

+

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

DG

ND

KE

Y0

KE

Y1

KE

Y2

KE

Y3

KE

Y4

KE

Y5

KE

Y6

KE

Y7

KE

Y8

DIG

0D

IG1

LED

_DIG

0LE

D_D

IG1

LED

0LE

D1

LED

2LE

D3

LED

4LE

D5

LED

6LE

D7

DG

ND

D0

D1

D2

D3

D4

D5

D6

D7

LCD

_ELC

D_R

/WLC

D_R

SD

+5

D+

5D

+9

DG

ND

D-5

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< < <

ES

INV

2 5

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CT

CD

CS

4

3

6

SI

V+

7

8

1

12

34

2 4 3 1

3 13 1

8

1

2

3

4

Ct

VSC

OUTc

GND

7

6

5

Vsa

Vsb

V+

123456789

1011121314151617181920

40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21

TE

ST

2/R

ST

_IN

IT1

ST

OP

/RS

T_C

OD

EC

/RS

T_I

NIT

2M

OD

E0

SE

LEC

T3

SE

LEC

T2

SE

LEC

T1

6059585756555453525150494847464544434241

D7D6D5D4D3D2D1D0LCD_RSLCD_R/WLCD_E

61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80

FO

OT

_SW

KE

Y8

KE

Y0

KE

Y1

KE

Y2

KE

Y3

KE

Y4

KE

Y5

KE

Y6

KE

Y7

C18

10/1

6

Vin

3

GND 2

Vou

t1

23

1

VR0VR1VR2VR3VR4VR5

BATT_VOLVR6

1 2 3 4 5 6 7 8

A+5

2

1

32

1

3

3 1

98

14 7

VC

C

GN

D

C10

0.01

D+

5

D+

5

DG

ND

DG

ND

DG

ND

D+

5B

DG

ND

DG

ND

DG

ND

C3

30P

X1

20M

Hz

C4

30P

D+

9

/MUTE

R24

10K

U6

DT

B11

4EK

D6A

DA

N20

2KD7A

DA

N20

2K

R16

100

R27

non

/RS

T_C

OD

EC

R19

100

DG

ND

D+

5

D+

5U

2A74

VH

C14

U2B

74V

HC

14

DG

NDC

50.

1

C6

0.1

R3

47K

R2

47K

R22

10K

R22

10K

SC

K_D

SP

SI

SO

_DIS

PR

1810

0

R17

100

U8

DT

C11

4EK

U7

DT

C11

4EK

C21

100/

16

R25

10K

R35

2.2K

D-5

MU

TE

MU

TE

/RS

T_C

PU

R4

100K C19

10/1

63

131

31

3

2

1

D+5

_1

J2F

PC

-17P

to L

CD

J5F

PC

-25P

D+

5_1

D-5

DG

ND

DG

ND

DG

ND

AD

+5

D+

9

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

AD

+5

AD

+5

VR

0V

R1

VR

2V

R3

VR

4V

R5

VR

6A

DG

ND

AD

GN

DA

DG

ND

JOG

0JO

G1

DG

ND

DG

ND D

GN

D GN

D

D+

9

DG

ND

RE

SE

T

R1

47K

R32

10K

C20

1/50

D+

5

AD

GN

D

D+

9

C12

470/

16

C52

100/

10

C53

470/

10

C13

100/

10 C15

100/

10

C54

NO

NC

70.

01

L122

µF

C8

0.01

C14

100/

10

A+

5

AG

ND

DG

ND

D+

5

R30

10K

R29

10K

BA

TT

_VO

L >

CP

U P

IN9

C16

100/

10

D+

9R

5 1

U1

NJM

2360

R6

1K

D-5

R7

3KC

1147

0P

L222

0µF

C17

120/

6.3

D3

EK

13

DG

ND

DG

ND

AD

GN

D

AD

+5

D+

5B

C9

0.01

D1

DS

K10

C

D2

DS

K10

C

D8

DS

K10

C

J3F

PC

-17P

to F

AD

ER

J1Y

KB

31-0

014

9V D

C IN

ST

OP

MO

DE

ST

OP

MO

DE

SE

TT

ING

: V

CC

>7V

ST

OP

U3

NJM

2103

U5

TA78

DM

05

U11

78M

05

Vin

DG

NDGNDVou

t

B1

CR

2032

D4

DS

K10

C

D5A

SB

05-0

5CP

R15 75 R14 75 R8

75

R9

75 R12 75 R13 75 R11 75 R10 75

SC

K_D

SP

SO

_DIS

P SI

LED

_DIG

0

LED

_DIG

1

Q1

2SA

1150

R34 1K

R33 1K

D+

5_1

D+

5_1

D+

5_1

Q2

2SA

1150

DIG

0

DIG

1

CP

U P

IN63

FO

OT

_SW

D10

DA

N20

2K

D9

DA

N20

2K

DG

ND

DG

ND

D+

5

R21

10K

R20 1K

J4Y

KB

21-5

074

U2G

74V

HC

14

L3B

EA

D

FO

OT

SW

U2F

74V

HC

14

RE

SE

T

/WR

_DIF

/RD

_DIF

/CS

_DIF

/RS

T_D

IF/+

48S

TO

PIR

Q3,

P22

IRQ

2,P

22D

RD

Y-D

SP

RD

Y-D

SP

/RE

Q-D

SP

/RS

T-D

SP

/RS

T-C

OD

EC

/RS

T-IN

ITM

OD

E0

RS

TD

SP

SE

L3D

SP

SE

L2D

SP

SE

L1S

BO

1,P

03

VREF-AN0AN1AN2AN3AN4AN5AN6AN7VREF+VDDOSC2OSC1VSSXIXOMMODSI-DSP(CPU_TX)SO-DSP(CPU_RX)CLK-DSP

/DIG03/DIG02/DIG01/DIG00

A4A3A2A1A0D7D6D5D4D3D2D1D0

RS-LCSRW-LCD

E-LCD

P64

,A4

FO

OT

/SW

1F

OO

T/S

W0

KE

Y08

KE

Y00

KE

Y01

KE

Y02

KE

Y03

KE

Y04

KE

Y05

KE

Y06

KE

Y07

LED

7LE

D6

LED

5LE

D4

LED

3LE

D2

LED

1LE

D0

to P

HO

NE

S

DIG

ITA

L S

.PR

OC

ES

S

JOG

0

JOG

1

J6F

PC

-8P

AG

ND

MU

TE

A-5

SC

KS

IS

O

MU

TE

DR

DY

_DS

PW

RD

Y_D

SP

WR

D_D

SP

RS

T_D

SP

/RS

T_IN

IT1

/RS

T_IN

IT2

/RS

T_C

OD

EC

SE

LEC

T3S

ELE

CT2

SE

LEC

T1

MU

TE

DR

DY

_DS

PW

RD

Y_D

SP

WR

D_D

SP

RS

T_D

SP

/RS

T_IN

IT1

/RS

T_IN

IT2

/RS

T_C

OD

EC

STE

RE

O_O

UT_

L+S

TER

EO

_OU

T_L-

STE

RE

O_O

UT_

R+

STE

RE

O_O

UT_

R-

D9

DA

N20

2K-1

DG

ND

AD

GN

D

AD

+5

D+

5B

C1

0.1

C2

0.1 R

26N

ON

D+

5T

ES

T P

OR

T

MODE0

TEST2

R28

NO

NC

220.

01

VR0

C23

0.01

VR1

C24

0.01

VR2

C25

0.01

VR3

C26

0.01

VR4

C27

0.01

VR5

C28

0.01

VR6

AD

GN

D

CP

U

U4

MN

101C

25

98

1110

U2D

74V

HC

14U

2E74

VH

C14

3 2

D+

5

R36

10K

C29

100/

10

D9B

DA

N20

2K

DG

ND

R37 0

/RS

T_C

OD

EC

R59

47K

KEY8

R58

47K

KEY7

R57

47K

KEY6

R56

47K

KEY5

R55

47K

KEY4

R53

47K

KEY3

R52

47K

KEY2

R51

47K

KEY1

R50

47K

KEY0

R48

47K

LED6

R47

47K

LED5

R46

47K

LED4

R45

47K

LED3

R44

47K

LED2

R43

47K

LED1

R42

47K

LED0

R41

47K

JOGIN2

R40

47K

JOGIN1

DG

ND

MA

IN (

1/9)

: C

PU

Page 16: VM08 SM Print - Diagramas dediagramas.diagramasde.com/audio/Fostex vm08_service_manual.pdf · AD+5 AD+5 AD+5 VR0 VR1 VR2 VR3 VR4 VR5 VR6 ADGND ADGND ADGND JOG0 JOG1 DGND DGND AD+5

VM08

16

VM08VM08

17

FA

DE

R P

CB

(F

oil S

ide)

U35

1

J351

171

DG

ND

AG

ND

AD

+5

R35

7R

356

R35

5R

354

R35

3R

352

R35

1

PHONES PCB (Parts Side)

PCB. PHONES. VM08

C318

C417

J412

J411

J413

C325

C312 C311 C412 C411

C317

C423

C324

C320 C331 C420

C324

C419

C319

J451

R51

0

R41

9R

330

C32

2

R33

1

R31

9

C33

0

1

2 1

8

PHONES PCB (Foil Side)

J412

J411

J413

C423

R423

R323 R324

C323

C324

R317

C420 C331

U410

U210

C413

PCB. PHONES. VM08

C427

C415

C320

R321

R320

R318

C319

U41

3U

414

C328R322C321

R420

R421C422

C421

W301 C419

R418

C313

C315

R416C416

R4145

R316C316R314

R315C314R313R312

R311C327

1

18

J451

C32

1

C31

1

C41

2

C41

1

C41

7

R41

1

C31

7

R51

0

11

2

R422

R424

L411

U411

L414

L413

L412

R417U41

2

R415R413C414R412