pioneer efx-500 audio proc board

ORDER NO.

PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, JapanPIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, BelgiumPIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936 PIONEER ELECTRONIC CORPORATION 1998

RRV2082

T – ZZY DEC. 1998 Printed in Japan

EFFECTOR

EFX-500

CONTENTS1. SAFETY INFORMATION.................................... 22. EXPLODED VIEWS AND PARTS LIST ............. 33. SCHEMATIC DIAGRAM ..................................... 84. PCB CONNECTION DIAGRAM ....................... 205. PCB PARTS LIST ............................................. 28

6. ADJUSTMENT .................................................. 30

7. GENERAL INFORMATION .............................. 317.1DIAGNOSIS ................................................. 31

7.1.1 DISASSEMBLY ................................. 317.1.2 TEST MODE ..................................... 34

7.2 BLOCK DIAGRAM ...................................... 36 8. PANEL FACILITIES AND SPECIFICATIONS .. 37

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

TypeModel

EFX-500Power Requirement

KUC O AC120V

WY O AC220 - 240V

RL O AC110 - 120V/AC220 -240V With the voltage selector

The voltage can be converted bythe following method.

OVERINPUT LEVEL

MIN MAX

MIX

ORIGINAL EFFECT

DEPTH

BEATEFFECTS

DIGITALJOG BREAK

MONITOR

MIN

MIN

MAX

MAX

OVEREFFECT OUT LEV

MIN MAX

OFF

ON

ON

LOCK

OFF

ON

ON

LOCK

∞– +6dB ∞– +6dB ∞– +6dB

ISOLATOR LOW MID HI

mSecAUTO

TAPMIDIBPM

EFFECT TIME BPM COUNTER100

0

80

10

60

20

40

30

20

40

0

50

20

60

40

70

60

80

80

90

100

100

DIGITAL JOG BREAK METER

DELAY ECHO PAN FLANGER

LOW MID HI

TRANS JET ZIP WAH RING FUZZ

EFFECT FREQUENCY

DEPTH

MIN MAX

M PLAY HOLD

OFF

ON

ON

LOCK

D I G I T A L J O G B R E A K

BPMMODE

TAP/ SHIFT

TIME/ BPM

B E A T E F F E C T S

1/12/1

4/1

3/4

1/2

1/4

JOG MEMORY

EFX-500

2

1. SAFETY INFORMATIONThis service manual is intended for qualified service technicians; it is not meant for the casualdo-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have beentrained to properly and safely repair complex products such as those covered by this manual.Improperly performed repairs can adversely affect the safety and reliability of the product and mayvoid the warranty. If you are not qualified to perform the repair of this product properly and safely, youshould not risk trying to do so and refer the repair to a qualified service technician.

WARNINGThis product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to causecancer, birth defects or other reproductive harm.

Health & Safety Code Section 25249.6 – Proposition 65

1. SAFETY PRECAUTIONS The following check should be performed for thecont inued protect ion of the customer and servicetechnician.

ANY MEASUREMENTS NOT WITHIN THE LIMITSOUTLINED ABOVE ARE INDICATIVE OF A PO-TENTIAL SHOCK HAZARD AND MUST BE COR-RECTED BEFORE RETURNING THE APPLIANCETO THE CUSTOMER.

2. PRODUCT SAFETY NOTICE Many electrical and mechanical parts in the appli-ance have special safety related characteristics. Theseare often not evident from visual inspection nor theprotection afforded by them necessarily can be ob-tained by using replacement components rated forvoltage, wattage , etc. Replacement parts which havethese special safety characteristics are identified inthis Service Manual. Electrical components having such features areidentified by marking with a on the schematics andon the parts list in this Service Manual.The use of a substitute replacement component whichdoes not have the same safety characteristics as thePIONEER recommended replacement one, shown inthe parts list in this Service Manual, may create shock,fire, or other hazards. Product Safety is continuously under review andnew instructions are issued from time to time. Forthe latest information, always consult the currentPIONEER Service Manual. A subscription to, or ad-ditional copies of, PIONEER Service Manual may beobtained at a nominal charge from PIONEER.

LEAKAGE CURRENT CHECK Measure leakage current to a known earth ground(water pipe, conduit, etc.) by connecting a leakagecur ren t tes ter such as S impson Mode l 229-2 orequivalent between the earth ground and all exposedmetal parts of the appliance (input/output terminals,screwheads, metal overlays, control shaft, etc.). Plugthe AC line cord of the appliance directly into a 120VAC 60 Hz outlet and turn the AC power switch on. Anycurrent measured must not exceed 0.5 mA.

(FOR USA MODEL ONLY)

Also test with plugreversed(Using AC adapterplug as required)

Deviceundertest

Test all exposedmetal surfaces

Earth ground

Leakagecurrenttester

Reading shouldnot be above0.5 mA

AC Leakage Test

REMARQUE

(POUR MODÈLE CANADIEN SEULEMENT)

Les symboles de fusible (fusible de type rapide) et/ou (fusible de type lent) sur CCI indiquent que les

pièces de remplacement doivent avoir la même désignation.

NOTICE

(FOR CANADIAN MODEL ONLY)

Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts

must be of identical designation.

3

EFX-500

2.1 PACKING

2. EXPLODED VIEWS AND PARTS LIST

(2) CONTRAST TABLEWY, RL and KUC are constructed the same except for the following:

Part No.RemarksMark

KUC type WY type RL type

2 Operating Instructions DRB1237 Not used Not used(English)

3 Operating Instructions Not used DRB1236 Not used(English/French/German/Italian/ Dutch/Spanish)

4 Operating Instructions Not used Not used DRB1238(English/Spanish/Chinese)

NSP 5 Warranty Card DRY1177 Not used Not used

10 Packing Case DHG1873 DHG1870 DHG1872NSP 11 Label VRW1629 Not used Not used

No. Symbol and Description

1 Guide Plate DAP10462 Operating Instructions See Contrast table(2)

(English)3 Operating Instructions See Contrast table(2)

(English/French/German/Italian/Dutch/Spanish)4 Operating Instructions See Contrast table(2)

(English/Spanish/Chinese)NSP 5 Warranty Card See Contrast table(2)

6 Polyethylene Bag Z21-0387 Pad A DHA14178 Pad B DHA14189 Pad C DHA1419

10 Packing Case See Contrast table(2)

NSP 11 Label See Contrast table(2)12 Sheet (550 x 550 x 0.5) Z23-026

(1) PACKING PARTS LISTMark No. Description Part No.

7

8

12

9

6

1

2, 3, 4

5

10

11

KUC only

KUC only

NOTES : Parts marked by “ NSP ” are generally unavailable because they are not in our Master Spare Parts List.The mark found on some component parts indicates the importance of the safety factor of the part.Therefore, when replacing, be sure to use parts of identical designation.Screw adjacent to ∞ mark on the product are used for disassembly.

4

EFX-500

2.2 EXTERIOR (1/2)

A

A

B

B

29

22

26

29

29

26

29

29

3

8

30

29

30

31

116

9

27

29

2321

29

7

29

1

29

28

28

1928

14

2

29 28

24

29

18

17 29

4

10

29

3016

28

30

25

28

5

20

13

29

32

8

29

15

28

28

C

C

5

EFX-500

(1) EXTERIOR (1/2) PARTS LISTMark No. Description Part No.

(2) CONTRAST TABLEWY, RL and KUC types are constructed the same except for the following:

Part No.RemarksMark

KUC type WY type RL type

NSP 3 POWER BOARD ASSY DWR1305 DWR1305 DWR13036 Cord stopper CM-22C CM-22B CM-22B9 AC Power Cord PDG1063 PDG1003 PDG1003

10 Power Transformer (AC120V) DTT1152 Not used Not used10 Power Transformer (AC220- 240V) Not used DTT1154 Not used

10 Power Transformer Not used Not used DTT1153(AC110-120V/220-240V)

11 Fuse (FU1: 500mA/125V) VEK1009 Not used Not used11 Fuse (FU1: T250mA/L250V) Not used AEK1048 AEK104822 Chassis DNK3603 DNK3599 DNK360531 Binder Not used PEC-107 Not used

32 65 Label DRW1927 Not used Not used

No. Symbol and Description

1 MAIN BOARD ASSY DWX1907NSP 2 TRANS BOARD ASSY DWR1304NSP 3 POWER BOARD ASSY See Contrast table(2)NSP 4 REG BOARD ASSY DWX1910

5 MIDI BOARD ASSY DWX1911

6 Cord stopper See Contrast table(2)7 22P F.F.C/60V DDD1137

NSP 8 Binder Z09-0619 AC Power Cord See Contrast table(2)

10 Power Transformer See Contrast table(2)

11 Fuse (FU1) See Contrast table(2)12 • • • • •13 Power Sheet DEC227114 Trans Sheet DEC228015 Shield Sheet DEC2285

16 Rear Plate DNF159217 Trans Plate DNF159618 Shield DNH235019 Trans Shield DNH235120 Power Shield DNH2358

21 Shaft DNK3600NSP 22 Chassis See Contrast table(2)NSP 23 PCB Holder REC1220

24 Earth Plate VBK107025 Snap Plate VNE1102

26 Insulator DEC223527 Power Knob DAC190428 Screw BBZ30P060FMC29 Screw BPZ30P080FZK30 Screw PMH30P080FMC

31 Binder See Contrast table(2)32 65 Label See Contrast table(2)

6

EFX-500

A

A

B

B

C

C

35 34

27

30

36 23

24

50

29

26

21

48

55

5

14

12

1

48

47

48

486

48

5217

10

4816

53

48

15

48

49 483

1248 22

47

4054

37

38

4342

44

50

19

41

39

50

18

32

35 45

28

20

50

25

2730

51

8

34

31

33

2

9

49

9

13

46

* The parts With marking is an attached parts of No.8

*

7

4

2.2 EXTERIOR (2/2)

7

EFX-500

1 7SEG BOARD ASSY DWG15042 SOUSA BOARD ASSY DWG1505

NSP 3 JOG BOARD ASSY DWX19084 HP. ASSY DWX19095 Earth Lead Unit DDF1011

6 Earth Lead Unit/ 300V DDF10157 Headphone Jack DKN11798 Lever Switch DSK10159 Lever Switch DSK1016

10 Earth Lead Unit/ 300V PDF1087

11 .........12 Spacer DEC226313 Slide SW Packing DEC228114 Lever Switch Packing DED112015 Lever VR Packing DED1137

16 Mount Plate DNE137017 HP Angle DNF159318 VR Angle A DNF159419 VR Angle B DNF159520 POM Ring DNK3598

21 TAP Plate DNK360822 Earth Plate VBK107023 Plate A DAH191224 Plate B DAH189725 Jog Washer DBF1001

26 Control Panel DNK365027 Level Indicator DNK359428 Ring Plate DNK359529 Escasion DNK359630 Lens B DNK3601

Mark No. Description Part No.

31 Rotary VR knob G DAA113332 Rotary VR knob GY DAA113933 Rotary VR knob GG DAA114034 Rotary Knob A DAA114135 Rotary Knob B DAA1142

36 Rotary Knob C DAA114337 Knob A DAC189638 Knob B DAH189739 BPM Mode Knob DAC189840 Tap Knob DAC1899

41 Knob C DAC190042 Play Knob DAC190143 Memory Knob DAC190244 Hold Knob DAC190345 Jog Dial DNK3597

46 Knob D Assy DXA186247 Screw BBZ30P060FMC48 Screw BPZ30P080FZK49 Screw BPZ30P120FMC50 Nut (M9) DBN1004

51 Cushion DEB141352 Rivet (3 x 4.5) RBM-003

NSP 53 Binder Z09-061NSP 54 Knob D DAC1905NSP 55 Lens DNK3592

Mark No. Description Part No.

(1) EXTERIOR (2/2) PARTS LIST

EFX-500

8

A

B

C

D

1 2 3 4

1 2 3 4

3. SCHEMATIC DIAGRAM3.1 OVERALL CONNECTION DIAGRAM

MAIN BOARDASSY(DWX1907)

E

A

SOUSA BOARDASSY(DWG1505)

H 7 SEG BOARDASSY(DWG1504)

FJOG BOARDASSY

(DWX1908)

IHP. BOARDASSY

(DWX1909)

A 1/3 - A 3/3 )(

E 1/2 , E 2/2 )(

EFX-500

9

A

B

C

D

5 6 7 8

5 6 7 8

RL only

BREG BOARD ASSY

(DWX1910) GMIDI BOARD ASSY

(DWX1911)

DPOWER BOARD ASSY

CTRANS BOARD ASSY

(DWR1304)

KUC: AC 120V 60HzWY: AC220 - 240V 50/60HzRL: AC110 - 120V/220 - 240V 50/60Hz

AC Power Cord

KUC, WY: (DWR1305)RL: (DWR1303)

KUC: (PDG1063)WY, RL: (PDG1003)

Note : When ordering service parts, be sure to refer to "EXPLODEDVIEWS and PARTS LIST" or "PCB PARTS LIST".

[ IC Voltage and Wavefome of measurement condition ]INPUT FREQUENCY 1kHz

INPUT VOTAGE 0.5VEFX-500 Seting

INPUT LEVEL MAXBEAT EFFECTS SW OFF, DELY,1/1, LOW ON, MID ON, HI ON

DEPTH (MID Center) MIX (MID Center)

JOG EFFECTS OFF, JET, PLAY OFF, HOLD OFF DEPTH (MID Center)

ISOLATOR OFF LOW (MID Center) MID (MID Center) HI (MID Center)

EFFCT OUT LEVEL MAXH.P MONITOR (MAX)

MASTERIN / OUT LEVEL -10dB

EFX-500

10

A

B

C

D

1 2 3 4

1 2 3 4

3.2 MAIN (1/3) BOARD ASSY

1/3A

E 1/2 CN701

A 2/3

A 2/3

A 1/3

A 1/3

A 2/3 A 1/3

MAIN BOARD ASSY(1/3) (DWX1907)

A 1/3

G CN605

A 2/3

A 2/3

4

4

3

3

2

1

: AUDIO SIGNAL : AUDIO SIGNAL (HEADPHONE)

SIGNAL ROUTE

Voltage [ V ]No.1234

-1.0 - 1.0-1.0 - 1.0-1.0 - 1.0-11.9

-1.0 - 1.0-1.0 - 1.0-1.0 - 1.012.0


IC301 (NJM4558MD)


2.0 - 3.02.442.440

2.422.422.0 - 3.04.88


IC302 (NJM2100M)


2.0 - 3.02.442.440

2.422.422.0 - 3.04.88


IC303 (NJM2100M)


-0.5 - 0.5-0.62 - 0.78-0.62 - 0.78-11.8

-0.62 - 0.78-0.62 - 0.78-0.5 - 0.511.9


IC204 (NJM4558MD)

CABLE HOLDER

(HP LOW PASS FILTER)

(INPUT AMP)(DIFFERENTIAL AMP)

EFX-500

11

A

B

C

D

5 6 7 8

5 6 7 81/3A

A 2/3

A 2/3

A 1/3

A 1/3

LN2

LP2

1 TP- IL1V: 500mV/div. H: 250µS/div.

GND

4 TP- LN2, TP- LP2V : 50mV/div. H : 5mS/div.

7 TP- LN1, TP- LP1V : 500mV/div. H : 0.4mS/div.

LN1

LP1

GND

GND

6 TP- AL5V : 1V/div. H : 0.4mS/div.

GND

9 TP- HL4V : 200mV/div. H : 0.2mS/div.

GND

3 TP- NL+, TP- NL-V : 500mV/div. H : 250µS/div.

NL+

NL-

2 TP- IL5V : 500mV/div. H : 250µV/div.

GND

GND

5 TP- AL1 V: 500mV/div. H: 250µS/div.

GND

8 TP- LP2V : 1V/div. H : 0.4mS/div.

8

9

6

5

7

7


-1.5 - 1.5-0.5 - 0.5-0.5 - 0.5-11.9

-0.5 - 0.5-0.5 - 0.5-1.5 - 1.512.0


IC203 (NJM4580M)Voltage [ V ]No.

1234

-1.5 - 1.5-0.5 - 0.5-0.5 - 0.5-11.9

-0.5 - 0.5-0.5 - 0.5-1.5 - 1.512.0


IC205 (NJM4580M)


00.750.75-11.8

0.750.75011.9


IC406 (NJM4558MD)


-0.5 - 0.500-11.8

00-0.5 - 0.512.0


IC408(NJM4558MD)

GAIN SELECTOR

(HP LOW PASS FILTER)

EFX-500

12

A

B

C

D

1 2 3 4

1 2 3 4

3.3 MAIN (2/3) BOARD ASSY

2/3A

MAIN BOARD ASSY(2/3) (DWX1907)

A 2/3

A 1/3

A 1/3

10

10

TP- DO1 V : 1V/div. H : 5µV/div.

GND

11

11

TP- DO2V : 1V/div. H : 5µS/div.

GND


10

4.740 - 5.00 - 5.00 - 5.00 - 5.000 - 5.00 - 5.00 - 5.00 - 5.0

Voltage [ V ]No.11121314151617181920

0 - 50 - 50 - 54.7400 - 5.00 - 5.00 - 5.00 - 5.00 - 5.0

Voltage [ V ]No.2122232425262728

00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00

IC402 (MB814800-70PJ)

Voltage [ V ]No.51525354555657585960

4.744.740 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.0

Voltage [ V ]No.61626364656667686970

01.0 - 4.00 - 5.004.7404.74004.74

Voltage [ V ]No.71727374757677787980

004.7400004.7400

Voltage [ V ]No.81828384858687888990

4.744.7404.740.960002.400

Voltage [ V ]No.919293949596979899

100

4.74002.4001.4004.741.401.40


10

1.401.401.400 - 5.00 - 5.00 - 5.000 - 5.00 - 5.00 - 5.0

Voltage [ V ]No.11121314151617181920

0000 - 5.000 - 5.0004.744.74

Voltage [ V ]No.21222324252627282930

000 - 5.00 - 5.004.744.74000

Voltage [ V ]No.31323334353637383940

0 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00

Voltage [ V ]No.41424344454647484950

0 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.0 0 - 5.04.74

IC401 (MN19413A)

PARTS No. SILK No.

EFX-500

13

A

B

C

D

5 6 7 8

5 6 7 82/3A

A 1/3

13

13

12

TP- DO3V : 1V/div. H : 5µS/div.

GND

12 SDAT, SCLKV: 2V/div. H: 50µS/div.

SDAT

SCLK

GND

GND

: AUDIO SIGNAL : AUDIO SIGNAL (HEADPHONE)

SIGNAL ROUTE


10

4.8802.0 - 3.02.0 - 3.0 2.0 - 3.02.0 - 3.04.8804.884.88

Voltage [ V ]No.11121314151617181920

0 - 50 - 50 - 50 - 50.6 - 4.04.88 0000

Voltage [ V ]No.2122232425262728

4.8804.754.7502.0 - 3.02.0 - 3.02.4

IC403 (AK4520A)Voltage [ V ]No.

123456789

10

0 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.0

Voltage [ V ]No.11121314151617181920

0 - 50 - 50 - 500 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.0

Voltage [ V ]No.2122232425262728

0 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.04.74

IC405(SRM2B256SLMX70)

Voltage [ V ]No.51525354555657585960

0 - 5.04.740 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.0

Voltage [ V ]No.61626364656667686970

00 - 3.00 - 5.000 - 3.00 - 5.004.7404.74

Voltage [ V ]No.71727374757677787980

004.7400004.7400

Voltage [ V ]No.81828384858687888990

4.744.74000.962.3000.962.400

Voltage [ V ]No.919293949596979899

100

4.7402.302.4002.4004.742.5 - 3.02.5 - 3.0


10

2.5 - 3.02.5 - 3.0 4.740 - 5.00 - 5.00 - 5.000 - 5.00 - 5.00 - 5.0

Voltage [ V ]No.11121314151617181920

000000 - 5.0004.744.74

Voltage [ V ]No.21222324252627282930

4.7400 - 5.00004.74000 - 5.0

Voltage [ V ]No.31323334353637383940

0 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00

Voltage [ V ]No.41424344454647484950

0 - 5.00 - 5.00 - 5.00 - 5.00 - 5.04.744.740 - 5.0 0 - 5.04.74

IC404 (MN19413A)

EFX-500

14

A

B

C

D

1 2 3 4

1 2 3 43/3A B

3.4 MAIN (3/3), REG, TRANS and POWER BOARD ASSY

B

MAIN BOARD ASSY (3/3) (DWX1907)

REG BOARD ASSY (DWX1910)

A

A 1/3 - 2/3

A 1/3

1/3 - 2/3

A 3/3

CABLE HOLDER

14 Q1- EmitterV : 20mV/div. H : 0.2mS/div.

VLED

GLED GNDGND

IC123pin (V+B)

IC132pin (V-B)

15 IC12- 3pin(V+BV), IC13- 2pin(V-BV)V : 2V/div. H : 20mS/div.

GND

15

1514

Voltage [ V ]No.12

8.404.98

Voltage [ V ]No.34

04.97

IC11 (PQ05PR12)

EARTH METAL FITTINVNF1084

CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAM ETYPE NO.ICP-N5 MFD. BY ROHM CO.,LTD FOR IC92

CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO.IC-N10 MFD. BY ROHM CO.,LTD FOR IC95

CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO.ICP-N38 MFD. BY ROHM CO.,LTD FOR IC93 AND IC94.

EFX-500

15

A

B

C

D

1 2 3 4

1 2 3 4C D

C TRANS BOARDASSY(DWR1304)

C TRANS BOARDASSY(DWR1304)

D POWER BOARDASSYRL: (DWR1303)

D POWER BOARDASSYKUC, WY: (DWR1305)

KU

C: A

C12

0V 6

0Hz

WY

: AC

220-

240V

AC

PO

WE

R C

OR

DK

UC

: PD

G10

63W

Y: P

DG

1003

RL:

AC

110-

120V

/220

-240

V

50/

60H

z

AC

PO

WE

R C

OR

DR

L: P

DG

1003

PCB BINDER VEF1040

PCB BINDER VEF1040

Power TransfomerRL: DTT1153

KUC: DTT1152WY: DTT1154

CABLE HOLDER51052-0500

CABLE HOLDER51052-0500

Power Transformer

FU1

KUC: VEK1009: 500mA/125VWY: AEK1048: T250mA/L250V

• NOTE FOR FUSE REPLACEMENTFOR CONTINUED PROTECTION AGAINST RISK OF FIRE,REPLACE WITH SAME TYPE AND RATINGS OF FUSE.

CAUTION -

EFX-500

16

A

B

C

D

1 2 3 4

1 2 3 4

3.5 SOUSA (1/2) BOARD ASSY

1/2E F

SOUSA BOARD ASSY(1/2) (DWG1505)

A1/3

CN

201

E 2/2

FJOG BOARD ASSY

(DWX1908)

E 1/2

Voltage [ V ]No.51525354555657585960

0 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.04.96

Voltage [ V ]No.61626364656667686970

4.744.7404.740004.740 - 4.00 - 4.0

Voltage [ V ]No.71727374757677787980

04.7404.744.742.402.402.402.402.80


10

2.902.402.80004.744.744.740 - 5.00

Voltage [ V ]No.11121314151617181920

4.744.744.744.744.744.740 - 5.00 - 5.04.744.74

Voltage [ V ]No.21222324252627282930

4.744.7404.744.744.740 - 5.00 - 5.00 - 5.00 - 5.0

Voltage [ V ]No.31323334353637383940

0 - 5.00 - 5.000 - 5.00 - 5.004.744.744.744.74

Voltage [ V ]No.41424344454647484950

4.964.744.740 - 5.00 - 5.00 - 5.00 - 5.00 - 5.000 - 5.0

IC701 (PE5021A)

S702: ISOLATOR S703: JOG BREAKS704: BEAT EFFECTS710: BEAT -1/4S711: BEAT -1/2S712: BEAT -3/4S713: BEAT -1/1S714: BEAT -2/1S715: BEAT -4/1S716: BPM MODE

S717: LOWS718: MIDS719: HIS720: DELAYS721: ECHOS722: PANS723: FLANGERS724: TRANSS726: JETS727: ZIP

S728: WAHS729: RINGS730: FUZZS731: HOLDS732: JOG MEMORYS733: MEMOLY PLAY S734: TAP/SHIFT

EFX-500

17

A

B

C

D

5 6 7 8

5 6 7 81/2E

H CN901

H CN902

17 IC705- 2pinV : 2V/div. H : 0.2S/div.

GND

16 IC702- 1pin(S1), 18pin(C1)V : 2V/div. H : 2mS/div.

IC7021pin (S1)

IC70218pin (C1)

GND

GND

18 IC705- 2pinV : 2V/div. H : 0.2S/div.

GND

1817

16


0 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.00 - 5.02.8

Voltage [ V ]No.101112131415161718

00 - 3.00 - 3.00 - 3.00 - 3.00 - 3.00 - 3.00 - 3.00 - 3.0

IC702 (LB1740)


4.790 - 5.00 - 5.00 - 5.04.75000

Voltage [ V ]No.9

10111213141516

0 - 5.04.750 - 5.04.750 - 5.00 - 5.04.754.79

IC704 (TC74HC174AF)Voltage [ V ]No.

12345678

4.790 - 5.00 - 5.00 - 5.04.740 - 5.04.740

Voltage [ V ]No.9

10111213141516

0 - 5.04.740 - 5.04.740 - 5.00 - 5.04.744.78

IC705 (TC74HC174AF)

(Q717 - Q727 : LED DRIVER)

Q701 -Q716 : LED DRIVER

(frip-flop)

(frip-flop)

EFX-500

18

A

B

C

D

1 2 3 4

1 2 3 4

2.5 SOUSA (2/2), MIDI, 7SEG and HP. BOARD ASSY

2/2E G

GMIDI BOARD ASSY

(DWX1911)

J201

SOUSA BOARD ASSY(2/2) (DWG1505)E 2/2

E 1/2

A 1/3

E 1/2

20

20

TP- HL6V : 5V/div. H : 0.2mS/div.

GND

JA602-4pin(MIDI IN), JA601-5pin(MIDI OUT)V : 2V/div. H : 20mS/div.

19

19

MIDI IN

MIDI OUT

GND

GND

19

: AUDIO SIGNAL (HEADPHONE) SIGNAL ROUTE


000004.970

Voltage [ V ]No.89

1011121314

4.744.744.744.9704.974.97

IC603 (BU4066BCF)


04.974.77004.950

Voltage [ V ]No.89

1011121314

4.9504.9404.9404.97

IC601 (TC74HCU04AF)

Voltage [ V ]No.123

000

Voltage [ V ]No.456

4.9704.97

IC602 (PC900V)


-4.5 - 4.5-0.2 - 0.2-0.2 - 0.2-11.8


-0.2 - 0.2-0.2 - 0.2-4.5 - 4.511.9

IC703 (NJM4556AD)

(ANALOG SW)

(INVERTER)

(PHOTO CAPRER)

MIDI SW LEVELH - SLEWL - OUTPUT

STBY

STBY

STBY

EARTH METAL FITTING

CABLE HOLDER

EFX-500

19

A

B

C

D

1 2 3 4

1 2 3 4H I

I HP. BOARD ASSY(DWX1909)

H 7SEG BOARD ASSY(DWG1504)

E 1/2

E 1/2 CN703

CN702

EFX-500

20

A

B

C

D

1 2 3 4

1 2 3 4

4. PCB CONNECTION DIAGRAM

4.1 TRANS and POWER BOARD ASSY

TRANS BOARD ASSYC

POWER BOARD ASSYD

A CN2

NOTE FOR PCB DIAGRAMS:1. Part numbers in PCB diagrams match those in the schematic diagrams.2. A comparison between the main parts of PCB and schematic diagrams is shown below.

Symbol in PCBDiagrams

Symbol in SchematicDiagrams

Part Name

Transistor

Transistorwith resistor

Field effecttransistor

B C E

B C E

B C E

D G S

B C E

B C E B C E

D G S D G S

3. The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic diagram.

4. Viewpoint of PCB diagrams

Resistor array

3-terminalregulator

CapacitorConnector

P. C. Board Chip Part

Chip Part

SIDE B

SIDE AR

L on

ly

(DNP1878-B)

C D

SIDE A

EFX-500

21

A

B

C

D

1 2 3 4

1 2 3 4

MIDI BOARD ASSYG

7SEG BOARD ASSYH

7SEG BOARD ASSYH

A J201

E CN702 E CN703

MIDI BOARD ASSYG

IC601 IC603 IC602

(DNP1878-B)

(DNP1878-B)

(DNP1877-B)

(DNP1877-B)

4.2 MIDI and 7SEG BOARD ASSY

SIDE A

SIDE B

SIDE A

SIDE B

HG

EFX-500

22

A

B

C

D

1 2 3 4

1 2 3 4

4.3 MAIN and REG BOARD ASSY

REG BOARD ASSY

B

MAIN BOARD ASSYA

ECN701

GCN605

C J4

Q302 IC301 IC303 Q407 Q405 IC403 Q208 Q210 IC205 IC13 IC12 Q209IC403 IC406 Q201IC203 IC402 Q207

IC402

IC92Q203 Q204 IC302

IC204 Q205Q206

IC404 Q402 Q402 Q202 Q212Q401 Q211

IC401IC408 IC95 IC405 IC94

(DNP1877-B)

(DNP1878-B)

SIDE A

BA

EFX-500

23

A

B

C

D

1 2 3 4

1 2 3 4

MAIN BOARD ASSYA

REG BOARD ASSY

B

(DNP1878-B)(DNP1877-B)

SIDE B

BA

EFX-500

24

A

B

C

D

1 2 3 4

1 2 3 4

SIDE A

H.P BOARD ASSY

I

SOUSA BOARD ASSYE

ACN201

H CN901 H CN902

(DNP1878-B)

(DNP1878-B)

4.4 SOUSA, 7SEG and H.P BOARD ASSY

IE

EFX-500

25

A

B

C

D

1 2 3 4

1 2 3 4

JOG BOARD ASSYF

N902

(DNP1878-B)

FE

SIDE A

EFX-500

26

A

B

C

D

1 2 3 4

1 2 3 4

SIDE B

FE

SOUSA BOARD ASSYE

JOG BOARD ASSYF

Q714

Q715Q712 Q711 Q708 Q724 Q708

IC701Q713 Q709Q705

Q728 IC705 Q725 Q723 Q722 Q718

(DNP1878-B)

EFX-500

27

A

B

C

D

1 2 3 4

1 2 3 4IE

H.P BOARD ASSY

I

1

Q717 Q719 Q720 IC704

Q707 Q721(DNP1878-B)

(DNP1878-B)

SIDE B

EFX-500

28

AMark No. Description Part No.Mark No. Description Part No.

MAIN BOARD ASSY

SEMICONDUCTORSIC403 AK4520AIC95 (400mA/50V) ICP-N10IC93, IC94 (1.5A/50V) ICP-N38IC92 (250mA/50V) ICP-N5IC402 MB814800-70PJ

IC401, IC404 MN19413A-PIC302, IC303 NJM2100MIC204, IC301, IC406, IC408 NJM4558MDIC203, IC205 NJM4580MIC12 NJM78M12FA

IC13 NJM79M12FAIC405 SRM2B256SLMX70Q201–Q204, Q207–Q210 2SD2114KQ301, Q302 2SD2114KQ1 2SD2395

Q205 DTA124EKQ206 DTC124EKD11–D14 11E2(TB2)D15–D18 1GWJ42(TPB2)D51 UDZS8.2B

COILS AND FILTERSF405 DTF1013L201, L202 (100µH) DTL1071L11, L401–L403 (100µH) LFA101J

5. PCB PARTS LISTNOTES : ÷ Parts marked by “ NSP ” are generally unavailable because they are not in our Master Spare Parts List.

÷ The mark found on some component parts indicates the importance of the safety factor of the part.Therefore, when replacing, be sure to use parts of identical designation.

÷ When ordering resistors, first convert resistance values into code form as shown in the following examples.Ex. 1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by

J = 5%, and K = 10%).560 Ω = 56 × 10 1 = 561 ...................................................RD1/4PU 5 6 1 J47k Ω = 47 × 10 3 = 473 ..................................................RD1/4PU 4 7 3 J0.5 Ω = R50 ......................................................................RN2H Â 5 0 K1 Ω = 1R0 .........................................................................RS1P 1 Â 0 K

Ex. 2 When there are 3 effective digits (such as in high precision metal film resistors).5.62k Ω = 562 × 10 1 = 5621...........................................RN1/4PC 5 6 2 1 F

NSP MOTHER BOARD ASSY DWM2083 DWM2083 DWM2083MAIN BOARD ASSY DWX1907 DWX1907 DWX19077SEG BOARD ASSY DWG1504 DWG1504 DWG1504

NSP SUB BOARD ASSY DWX1900 DWX1900 DWX1901SOUSA BOARD ASSY DWG1505 DWG1505 DWG1505

NSP TRANS BOARD ASSY DWR1304 DWR1304 DWR1304NSP POWER BOARD ASSY DWR1305 DWR1305 DWR1303NSP JOG BOARD ASSY DWX1908 DWX1908 DWX1908

H.P BOARD ASSY DWX1909 DWX1909 DWX1909NSP REG BOARD ASSY DWX1910 DWX1910 DWX1910

MIDI BOARD ASSY DWX1911 DWX1911 DWX1911

Mark Symbol and DescriptionPart No.

KUC type WY type RL typeRemarks

POWER BOARD ASSYDWR1305 and DWR1303 are constructed the same except for the following:

S2 (VOLTAGE SELECTOR) Not used DSA1026J2 (LEAD WIRE UNIT) Not used DDF1017

Mark RemarksSymbol and DescriptionPart No.

DWR1305 DWR1303

PARTS LIST FOR KUC type

LIST OF WHOLE PCB ASSEMBLIES

CONTRAST OF PCB ASSEMBLIES

EFX-500

29

SWITCHES AND RELAYSS301 DSH1025

CAPACITORSC233, C238, C281, C282 CCSQCH101J50C301–C304, C327–C330, C438 CCSQCH101J50C444, C470, C471, C488, C489 CCSQCH101J50C413, C414, C422, C423 CCSQCH220J50C453, C454 CCSQCH220J50

C271, C272, C341–C344 CCSQCH270J50C440, C445 CCSQCH331J50C321, C322 CCSQSL152J50C216, C217 CCSQSL561J50C224–C227 CEANP220M16

C239, C240 CEANP2R2M50C323 CEANP3R3M50C305, C306 CEANP4R7M35C291–C294 CEANPR33M50C433 CEAT100M50

C251, C252 CEAT220M50C313, C314 CEAT221M6R3C214, C215 CEAT2R2M50C351, C352 CEAT330M16C52 CEAT3R3M50

C405, C407, C425, C427, C472 CEAT470M10C474 CEAT470M10C26, C261, C262, C27 CEAT471M16C24 CEAT471M6R3C311, C312 CEAT4R7M50

C51 CEHAQ471M10C401, C458 CEJA101M10C415, C448 CEJA470M10C11–C17, C9 CKCYF103Z50C19 CKCYF473Z50

C232, C237 CKSQYB102K50C421, C452, C468, C473, C478 CKSQYB103K50C222, C223, C235, C236 CKSQYB104K25C295, C296, C309, C310 CKSQYB104K25C315–C317, C319, C402, C406 CKSQYB104K25

C408–C412, C416, C419, C424 CKSQYB104K25C426, C434, C439, C442 CKSQYB104K25C449–C451, C455, C457, C459 CKSQYB104K25C475–C477, C481, C485 CKSQYB104K25C403, C466 CKSQYB105K10

C228–C231 CKSQYB122K50C23, C25 (3300µF/16V) DCH1104C21, C22 (2200µF/25V) DCH1117

RESISTORSR403, R404, R466–R468 (82Ω/ 1/16W) ACN7049R307, R308, R349–R352 RN1/10SE1002DR301, R302, R311, R312 RN1/10SE1100DR272, R274 RN1/10SE1502DR347, R348 RN1/10SE2202D

R220, R222 RN1/10SE2402DR341, R342 RN1/10SE3002DR353–R356 RN1/10SE3300DR211, R212 RN1/10SE4701DVR301 (25kΩ-B x2) DCS1049

Other Resistors RS1/10S&&& J

OTHERS (HOLDER 5P) 51048-0500CN201 (FFC CONNECTOR 22P) 52045-2245J201 (JUMPER WIRE 5P) D20PYY0505EJA301 (MIC JACK) DKN1189X402 (CRYSTAL RESONATOR 12.288MHz)DSS1030

X401, X403 DSS1111 (CERMIC RESONATER 20.2MHz)CN3 (JUMPER WIRE 4P) KPC4CN2 (JUMPER WIRE 5P) KPC5JA201 (PIN JACK 4P) PKB1016JA203, JA204, JA302 (MIC JACK) VKN1143

KN11 (EARTH METAL FITTING) VNF1084

REG BOARD ASSY

SEMICONDUCTORSIC11 PQ05RR12

OTHERS11 (CABLE HOLDER 4P) 51052-0400J11 (JUMPER WIRE) DXYY0410E

TRANS BOARD ASSY

OTHERS (CABLE HOLDER 5P) 51052-0500J4 (JUMPER WIRE 4P) DXYY0510E

POWER BOARD ASSY

CAPACITORSC3 (4700pF/250V) ACG7018C1, C2 (10000pF/125V) ACG7020

COILS AND FILTERSL1 VTL-004

SWITCHES1 RSA1001

OTHERSH1, H2 (FUSE CLIP) AKR1004 (TERMINAL 2P) RKC-061J1 (LEAD WIRE UNIT) DDF1016J3 (LEAD WIRE UNIT) DDF1018 (PCB BINDER) VEF1040

SOUSA BOARD ASSY

SEMICONDUCTORSIC702 LB1740IC703 NJM4556ADIC701 PE5021BIC704, IC705 TC74HC174AFQ702, Q704, Q706 2SA1036K

B

D

C

Mark No. Description Part No. Mark No. Description Part No.

E

EFX-500

30

I

Q717–Q727 2SC2412KQ707–Q716 2SD2114KQ701, Q703, Q705 DTC124EKD701–D705, D707–D711 1SS355D745–D747, D776–D782, D784 BR5064X

D792–D794 BR5064XD749, D751, D758, D760, D762 BR5074XD764 BR5074XD748, D750, D757, D759, D761 BR5364XD763, D765 BR5364X

D754, D789 BR5374XD740–D743, D785–D788 SLP3118C51HD730–D739, D766–D775 SLP4118C51HD744, D752, D756, D791 SLP9118C51H

SWITCHESS734 DSG1046S701 DSX1054S710–S724, S726–S733 VSG1008

CAPACITORSC711, C712, C715, C716 CCSQCH270J50C714 CEAL101M6R3C702, C709 CEAL470M6R3C808, C809 CEJA101M16C713 CEJA470M10

C801, C802 CEJANP470M16C701, C703–C708, C710 CKSQYB103K50C717, C718, C721–C727 CKSQYB103K50C731, C732, C740–C743 CKSQYB103K50C803, C804 CKSQYB103K50

RESISTORSR814–R817 RD1/4VM301JVR701 (10kΩ-B) DCS1045VR801 (10kΩ-B x2) DCS1046VR702–VR704 (10kΩ-B) DCS1047VR705–VR707 (10kΩ-B) DCS1048

Other Resistors RS1/10S&&& J

OTHERS (CABLE HOLDER 3P) 51048-0300 (CABLE HOLDER 5P) 51048-0500CN701 (CONNECTOR 22P) 52492-2220J703 (JUMPER WIRE 3P) D20PYY0305EJ801 (JUMPER WIRE 5P) D20PYY0510E

X701 (CRYSTAL RESONATOR 5.0MHz) DSS1106CN702, CN703 TKC-A08P-A1510E

JOG BOARD ASSY

SWITCHES901 DSX1051

OTHERSCN903 (JUMPER CONNECTOR 3P) 52151-0310

MIDI BOARD ASSY

SEMICONDUCTORSIC603 BU4066BCFIC602 PC900VIC601 TC74HCU04AFD601–D603 1SS355

CAPACITORSC602–C605 CKSQYB103K50C601 CKSQYB105K10

RESISTORSR601, R602, R607 RD1/4PU221JOther Resistors RS1/10S&&& J

OTHERSJA601, JA602 (DIN CONNECTOR) DKN1188KN601 (EARTH METAL FITTING) VNF1084CN605 (CONNECTOR) 52151-0510

7SEG BOARD ASSY

SEMICONDUCTORSD901–D907 NKR131SD911–D916 SML-210JT

RESISTORSAll Resistors RS1/10S&&& J

OTHERSCN901, CN902 (CONNECTOR) TKC-A08X-B1

H.P BOARD ASSY

COILS AND FILTERSL803–L805 VTL1105

SWITCHES801 DSH1048

CAPACITORSC805, C807 CKSQYB103K50C806 CKSQYB473K50

RESISTORSAll Resistors RS1/10S&&& J

OTHERSCN801 (JUMPER CONNECTOR 5P) 52147-0510

Mark No. Description Part No. Mark No. Description Part No.

I

H

G

6. ADJUSTMENTThere is no information to be shown in

this chapter.

F

31

EFX-500

7. GENERAL INFORMATION7.1 DIAGNOSIS7.1.1 DISASSEMBLY

CN201

1

2

2

2

4 3

1

11

1

2

34

3

1

Nut (M9)

Nut(M9)

Rotary Knob(EFFECT OUT LEV)

Rotary Knob(LOW, MID, HI)

Rotary Knob(DEPTH)

Rotary Knob(TIME/BPM)

RotaryKnob(MIX)

Jog Washer

Jog Dial

FUNCTION SECTION (1)

BOTTOM SECTION

32

EFX-500

44

44 4

4 x24

4

44

4

4

4 x2

4 x2

4

4

4

5

5

Screw × 21

JOG BOARD ASSY

SOUSA BOARD ASSY

HP. ASSY

Earth Lead Unit

EarthLeadUnit

Earth Plate

Hook

Binder

4 x2

Hook

JOG BOARD ASSY

7SEG BOARD ASSY

SOUSA BOARD ASSYHP. ASSY

6

6

66

× 4

× 2Nut (M9)

Nut (M9)

Nut (M9)

Nut

VR Angle B

VR Angle A

Lever Switch Packing

FUNCTION SECTION (2) SOUSA BOARD ASSY


Volume Exchange Method (1/2)

33

EFX-500

JOG BOARD ASSY

7SEG BOARD ASSY

SOUSA BOARD ASSY

VR701

VR707

VR706

VR702

VR704

VR703

S701

S703

S704

VR801

S901

VR705

S702

HP. ASSY

7

7VR Angle B

VR Angle A

Earth Lead Unit


Volume Exchange Method (2/2)

34

EFX-500

7.1.2 TEST MODE

1. Entry into Test ModeSwitch on the power while pressing 1/4 and 1/1 of the beat switch. (Refer to Fig 1)¶ With correct entry into test mode, "F ." is displayed on the BPM display.¶ When the beat switch is released, the unit automatically enters into mode 1 and the BPM display becomes "F_1".

2. Explanation of each Mode and Setting Method2.1 Explanation of each mode Mode 1 ... The LED self-illuminating button, the LED coupled to the lever switch, and the effect time display coupled to the time

button are checked. Mode 2 ... MIDI LED and BPM mode switch are checked. Mode 3 ... The LEDs other than mode 1 are checked.

2.2 Setting method Mode switching is done with the BPM mode switch. Each time the switch is pressed, switching is done in the order of mode 1= mode 2 = mode 3 = mode 1 ... From any mode, mode 3 is reached by pressing the tap button. The LED (1/1) of the beat switch lights when the mode shifts from mode 3 to mode 1.

3. Check Methods in each Mode and their Points

3.1 Mode 1 Mode 1 is reached by the following operations A and B.A. When test mode is entered and the beat switch (1/4 and 1/1) is released.B. When the BPM mode switch is pressed once in mode 3. At this time, "3210" is displayed a the effect time display position, and "F_1" is displayed at the BPM display position.¶ The "F_1" display permits confirmation that the 7 segments are not short-circuited.

3.1.1 Check method Of the following switches, only the effect selection button flashes when the switch is pressed. All other switches light when the switch is pressed and go out when the switch is pressed again.

3.1.2 Check points Effect selection button Frequency selection button Beat effect ON switch Beat switch (1/4 ~ 4/4) Effect time button and effect time display (* All four digits of the display count up at the same time.) Hold button Play button Jog effect ON switch

3.2 Mode 2 Mode 2 is entered when the BPM switch is pressed in mode 1. At this time, the effect time display goes out and "F_2" is displayed on the BPM display.

3.2.1 Check contents Mode switching with the BPM mode switching switch. (The MIDI LED lights.) Note: Some of the LEDs lit in mode 1 may not go out, but this is not a defect.

35

EFX-500

3.3 Mode 3 Mode 3 is reached by the following operations A and B.A. When the BPM switch is pressed in mode 2. At this time, "0000" is displayed on the time display, and "000" is displayed on the BPM display.B. When the tap switch is pressed in mode 1 or mode 2. At this time, "1111" is displayed on the time display, and "111" is displayed on the BPM display.

3.3.1 Check method When the tap switch is hit, the following indications change.

Checked indication DescriptionInput level meter Lights one by one from the bottom.Effect out level meter Lights one by one from the bottom.Effect time display Number display is performed with all four digits counting up simultaneously.BPM display Number display is performed with all three digits counting up simultaneously.Beat LED Lights one by one from the left.Jog meter Lights one by one from the left.

OVERINPUT LEVEL

MIN MAX

MIX

ORIGINAL EFFECT

DEPTH

BEATEFFECTS

DIGITALJOG BREAK

MONITOR

MIN

MIN

MAX

MAX

OVEREFFECT OUT LEV

MIN MAX

OFF

ON

ON

LOCK

OFF

ON

ON

LOCK

∞—

∞—∞—

+6dB +6dB +6dB

ISOLATOR LOW MID HI

mSecAUTO

TAPMIDIBPM

EFFECT TIME BPM COUNTER

100

0

80

10

60

20

40

30

20

40

0

50

20

60

40

70

60

80

80

90

100

100



LOW MID HI


EFFECT FREQUENCY

DEPTH

MIN MAX

JOG MEMORY

M PLAY HOLD

OFF

ON

ON

LOCK


BPMMODE

TAP/ SHIFT

TIME/ BPM


1/12/1

4/1

3/4

1/2

1/4

Mode 1 : 3210Mode 2 : Not usedMode 3 : 0000

TEST MODE ON

Digital JOG Meter

JOG Effect Buttons

TAP Button

BPM Mode ButtonTIME/BPM Button

BEAT Button

Effect Frequency Buttion

Effect Time Display

Input Level Meter Effect Level Meter

BPM DisplayTest Mode : FMode 1 : F1Mode 2 : Not usedMode 3 : 000

Fig 1

36

EFX-500

7.2 BLOCK DIAGRAM

Pin

Inpu

t

Pho

ne In

put

Gai

n S

elec

tor

(Q30

2)0d

B, -

14dB

AD

/DA

Con

vert

er(I

C40

3)A

K45

20A

CR

- LP

F(R

211,

C21

6)4.

7K, 5

60pF

fc =

60k

Hz

Am

p G

ain

Sel

ecto

r(I

C20

3, Q

201)

NJM

4580

, 2S

D21

14K

0dB

, +14

dB

Mut

e(Q

208)

Mut

e(Q

207)

Pin

Out

put

Pho

ne O

utpu

t

Gai

n S

elec

tor

SW

+4d

B/ -

10dB

LIN

E/

MIX

ER

OU

T

DS

PI

(IC

401)

MN

1941

3A

DS

P2

(IC

404)

MN

1941

3A

H.P

VR

(VR

801)

Buf

fer

Am

p(I

C40

8)N

JM45

58

H.P

Out

put

MID

I Inp

ut

MID

I Out

put

Inpu

t Trim

(VR

301)

-6dB

Gai

n A

mp

(IC

301)

NJM

4558

+6d

B

Am

p(I

C30

2, IC

303)

NJM

2100

M

LPF

Am

p(I

C40

6)N

JM45

58

Mut

e(Q

203)

LPF

Am

p(I

C20

4)N

JM45

58

HP

. OU

T A

mp

(IC

703)

NJM

4556

+16

dB

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701)

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4580

EFX-500

37

8. PANEL FACILITIES AND SPECIFICATIONS

OVERINPUT LEVEL

MIN MAX

MIX

ORIGINAL EFFECT

DEPTH

BEATEFFECTS

DIGITALJOG BREAK

MONITOR

MIN

MIN

MAX

MAX

OVEREFFECT OUT LEV

MIN MAX

OFF

ON

ON

LOCK

OFF

ON

ON

LOCK

∞—∞—∞—

+6dB +6dB +6dB

ISOLATOR LOW MID HI

mSecAUTO

TAPMIDIBPM

EFFECT TIME BPM COUNTER

100

0

80

10

60

20

40

30

20

40

0

50

20

60

40

70

60

80

80

90

100

100



LOW MID HI


EFFECT FREQUENCY

DEPTH

MIN MAX

JOG MEMORY

M PLAY HOLD

OFF

ON

ON

LOCK


BPMMODE

TAP/ SHIFT

TIME/ BPM


1/12/1

4/13/4

1/2

1/4

BEATMASTERJOG

PHONES

Input Level MeterIndicates the input level. The “OVER” indicator lightswhen the input level is set too high.

INPUT LEVEL Adjust DialAdjusts the input level in the range – to +6 dB.

ISOLATOR Lever SwitchTurns the isolator on and off. At the center position theisolator is OFF (through) and at the rear position it is ONand locked. The isolator is temporarily ON when movedto the front position and returns to the center (OFF) posi-tion when released.

BPM COUNTERGives a numeric BPM (beats per minute) indication. Thecounter flashes when a BPM measurement cannot bemade.

ISOLATOR LOW Adjustment DialAdjusts the bass of the input source. The sound is flat atthe center clicked position and is cut (no sound) at the – position.

ISOLATOR MID Adjustment DialAdjusts the mid-range of the input source. The sound isflat at the center clicked position and is cut (no sound) atthe – position.

ISOLATOR HI Adjustment DialAdjusts the treble of the input source. The sound is flatat the center clicked position and is cut (no sound) at the– position.

Effect Output Level MeterIndicates the effect output level. The “OVER” indicatorlights when the output level is set too high.

POWER SwitchThe POWER switch is located on the rear panel.

Effect Output Level Adjust Dial(EFFECT OUT LEV)Adjusts the effect output level in the range – to +6 dB.

1

2

3

4

5

8

7

6

9

10

8.1 PANEL FACILITIES

EFX-500

38

DIGITAL JOG BREAK METERIndicates the amount of control applied with the Jog dial.

Jog Effect Select Buttons(JET/ZIP/WAH/RING/FUZZ)Press to select one of 5 effects (JET, ZIP, WAH, RING orFUZZ). The selected button flashes.

HOLD buttonPress the button to light it and the effect currently ap-plied to the sound will continue after the jog dial stopsrotating.

DIGITAL JOG BREAK Lever Switch(ON/OFF/LOCK-ON)The Digital Jog Break sound is output when this switchis set to ON. The function is OFF when the switch is setto the center position (through). It is ON and locked atthe rear position and is ON temporarily at the front posi-tion (the switch returns to the center position when re-leased).

DIGITAL JOG BREAK DialThe speed of Jog dial rotation changes the amount ofcontrol applied to each effect.

JOG MEMORY PLAY ButtonReproduces the effect created with the Jog dial that wasstored in memory.

JOG MEMORY Button (M)Holding down this button when the Jog dial is rotatedstores up to 8 seconds worth of effects created with thedial. The PLAY button 16 lights when effects have beensaved to memory.

Digital Jog Break Effect Depth Dial(DEPTH)Adjusts the depth of the Digital Jog Break effect.

Beat Effect Depth Dial (DEPTH)Adjusts the depth of the Beat effect.

MIX DialSets the balance between the original sound and the cre-ated effect.

Headphone Monitor Select Switch(BEAT/MASTER/JOG)This switch is located on the front panel of the unit.Selects the source to be monitored in the headphones.BEAT: monitors the beat effect.MASTER: monitors the master output.JOG: monitors the effects created with the Digital

Jog Break (and the beat effect when the BEATEFFECTS Lever Switch is ON).

Headphone Jack (PHONES)This jack is located on the front panel.Connect a headphone (with a 1/4-inch/6.3 mm stereoplug) to this jack.

Headphone Monitor Level Dial (MONITOR)Adjusts the headphone sound level.

Tap button (TAP/SHIFT)BPM can be input manually by tapping the TAP buttontwo times or more in time with the beat (quarter note).When the TIME dial 26 is turned while this button is helddown, you can directly control BPM manually.

BPM Measurement Mode Button (BPM MODE)Selects the BPM measurement mode (AUTO/MIDI/TAP)AUTO: makes automatic measurements from the input

music signal.MIDI: measures BPM from the MIDI signal (timing

clock) input to the MIDI IN terminal.TAP: performs manual input of BPM when the TAP

button is tapped. Pressing the TAP button inAUTO or MIDI mode changes the mode to theTAP mode.

Time Dial (TIME/BPM)Turn this dial to set the beat effect time. When the beateffect time is changed, the indicator on the Beat Selectbutton changes to the set position. The desired BPMsetting can be made by turning the TIME/BPM dial 26while holding down the TAP/SHIFT button 24 . Whenthe BPM MODE button 25 is also pressed, BPM can beset in 0.1 increments.

Beat Select Buttons(1/4, 1/2, 3/4, 1/1, 2/1, 4/1)Selects the beat with which the beat effect will be syn-chronized. When a Beat Select button is pressed, theBPM (beats per minute) effect time is automatically set.“1/1” is selected for BPM in the TAP mode. At power onBPM is set to 120 and “1/1” is selected.

BEAT EFFECTS Lever Switch(ON/OFF/ON-LOCK)The beat effect sound is output when this switch is set toON. The effect is set to OFF (through) at the centerposition and is ON and locked at the rear position. Theeffect is temporarily ON when set to the front position(the switch returns to the center position when released).

EFFECT FREQUENCY Select Buttons(LOW/MID/HI)Selects the frequency range to which the Beat effect isto be applied. Press the button to turn it on and off. Theindicators of the selected ranges light when on. No effectis generated when all buttons are set to off.

Effect Select Buttons(DELAY/ECHO/PAN/FLANGER/TRANS)Select one of 5 effects (DELAY, ECHO, PAN, FLANGERor TRANS). The selected button flashes.

BPM Measurement Mode Indicators(AUTO/MIDI/TAP)Indicates BPM measurement mode.

EFFECT TIME DisplayIndicates the effect time (in ms) set with the TIME dial orBeat select button.

IN & OUT LEVEL switch (+4 dB/–10dB)This switch is located on the rear panel.

NAMES OF PARTS AND FUNCTIONS11

12

13

14

15

16

17

18

19

20

21

28

22

23

24

25

26

27

28

29

30

31

32

33

EFX-500

39

1. General

Power supply ..................................KUC : 120 V AC, 60 Hz............................................. WY : 220 - 240V AC, 50/60Hz............................. RL : 110 - 120/ 220 - 240V AC, 50/60Hz

Power consumption ..................................................... 14 WOperating temperature ................................. +5°C to +35°C

(+41°F to +95°F)Weight ............................................................ 2.0 kg (4.4 lb)Maximum external dimensions.................................. 277.1 (W) x 225.1 (D) x 83.5 (H) mm

10-29/32 (W) x 8-7/8 (D) x 3-5/16 (H) in.

2. ......................................................................... Audio Unit

Sampling rate ............................................................ 48 kHzA/D, D/A Resolution ...................................................20 bitsFrequency characteristics ......................... 20 Hz to 22 kHzS/N ratio ...................................................................... 83 dBTotal harmonic distortion .............................. 0.01 % or lessInput level ................................... –10 dBu / +4 dBu (22 kΩ)Output level .............................................. –10 dBu / +4 dBu......................... (RCA pin jacks: 1 kΩ, Phone jacks: 600 Ω).......................................... –10 dBu / +4 dBu is switchable.

Number of channels ............................. 2 channels (stereo)

3. Input/Output terminals

Audio line output terminalRCA pin jacks ................................................................ 2Phone jacks (1/4-inch/6.3 mm in diameter) .................. 2

Audio line input terminalRCA pin jacks ................................................................ 2Phone jacks (1/4-inch/6.3 mm in diameter) .................. 2

MIDI output terminal (5-pin DIN) ....................................... 1MIDI input terminal (5-pin DIN) ......................................... 1Headphone output terminal(1/4-inch/6.3 mm in diameter, stereo) ............................... 1

4. Accessories

Operating instructions........................................................ 1Guide plate ........................................................................ 1Warranty card .................................................................... 1

NOTE:Specifications and design are subject to possible modificationwithout notice.

8.2 SPECIFICATIONS

pioneer efx-500 audio proc board

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