KDX-46Q005 service Training 1

3-5.Digital Module (QM/QT/QI/QUMU/QH board)

FeaturesTV Signal Receiving

- Terrestrial :8VSB CH2~69- Cable :64/256QAM CH1~125

Digital Cable Readyi.LINK (2 x Rear, 1 X Front)

Support Devices- DV camera- HDV camera- DVHS- Micro MV cameraNo PC connection supporti.LINK Stand By

Media Viewer (Memory Stick, Memory Stick Pro, Standard/Duo)-JPEG still picture-MPEG1 movie (VX fine mode is not supprted)-MP3 audio

Menu / GUI

KDX-46Q005 service Training 2

Digital Cable Ready Uni-Directional Cable Ready Certified. This standard is defined by SCTE, not by Cable Lab,. This TV can receive scrambled signal with CableCARD.

TV can receive basic digital programs with contract High Definition programs may be provided. No Pay-Per-View No EPG No interactive services (PVR etc) These are required Bi-directional system. But Bi-directional standard is not ready yet.

CableCARD Previously it was called POD. CARD is provided by cable companies with contract. Physical shape is PCMCIA type I/II. TV have CableCARD slot on the rear panel. Customer receive the CARD and insert to TV.

With CableCARD, Channel numbering is same as normal cable box dose. No auto-programing required. (CH info. Will come through coax. RF cable.)

KDX-46Q005 service Training 3

US04 Digital Module Signal Flow [Q005]

ATix226

DDR 400 32MBInfineon/Samsung

DDR 400 32MBInfineon/Samsung

ME

M C

H A

ME

M C

H B

MEM

CH

A183M

Hz D

DR

]M

EM C

H B

183MH

z DD

R]

SPDIF UART

GPIO

USB1.1

Service CN

SPDIF CN

PowerProtectUSB CN

Series A

OCPV BUS

5V

NV

M

NVM

USBSeries B

Mem

ory StickSTD

/Duo

USB toM.Stick

SystemPower

CN

DC/DC400mA-1060mA

DC/DC1120mA-3900mA

9V

3.4V

2.6V5V

LDO

1.8VLD

O 1.8V

LDO

1.8VLD

O 1.8V

LDO

1.8V

LDO

1.5V1400m

AReset

2.6V3.4V

26.1621M

PCITS In

TS Out

656 In

PCI CN 80pin CN B to B

PCI Bus 33MHz

I2C Flex BusIDE IF

Digital VideoLVDS

VCO27M

656-601Converter

LVDS Tx

UART

DigitalAudio Out

DAC 1

DAC 0

Clock

GPIO B

K9F2808UDCNAND Flash 16M

M25P10-ASerial Flash 128KB

Parallel B

US

DDR-SDR

RGBA8888/Hs/Vs/Clk

Digital GFXLVDS

8bit P-IF

Chip selectdecodeH

s/Vs/C

lk

LVDS Tx

Serial IF

TS In

QM

-QT

IF 40pinQ

T Pow

er

9V

3.4V2.6V

5V

TS / 656 CN 40pin B to B

68K like BUS 33MHz

Serial TS 72MHz(Max)

ICS1526Graphics PLL

Analog

Graphics

CS4335Audio DAC

AnalogA

V

LPF

Hs/VsHs/Vs/Clk

QM

-QT

IF 40pinQ

T Pow

erFE RST / CXD2099 RST

I2C

IB Tuner

OOB Mixer

8VS

B64/256Q

AM

QP

SK

Dem

odulator

NTSC CN I2C/AGCSW

CXD2099

QT-QU IF 80pin

Serial TSSerial TS

68K like BUS

LDO190mA

Boost20mA:5mA

2.6V

I2CI2C(A)

AGC muteIF

AGC

AGC(D)

I2C/AGC SWI2C(D)

FMONO/ModeStereo/SAP

Front End RSTI2C

CXD2099 RST

AFT

9V

9V

5V

3.4V

32V

1.2V

Parallel B

US

Parallel TS

Parallel TS

PowerSW

CRX/DRX

CR

X/D

RX

5V3.4V

QT-QU IF 80pin

PCMCIA CN

Cable Card(POD)

Antenna SW

Main Out

OOB Out

Cable InUHF/VHF In

Sub OutTo A1MU

ToA1MU

FromA1MU

ToM

1MU

ToD

IC

3

A1MUASU

PCI CN 80pin CN B to B

TS / 656 CN40pin B to B

V/LRNTSC/BTSC

i.LINK PHYiCESDV decoder

i.LINKi.LINKi.LINK

PIC BU

S

3.4V

2.6V

2.6V

5V

5V

3.4V

24.576M 1.8VREG

2.6V

Serial TS

Serial TS

Serial TS

Serial TS

I2S In

DV

656D

V 656

VCXO27M24.576M

VCO

IC42S16101SDRAM

MT48LC8M8M SDRAM

QM QT

QI

QH

QUMU

QT 9V is from ASU

KDX-46Q005 service Training 4

Connection failure Set no power, no boot up

QM CN7300 connection or cable damage. QM CN7307 QT CN7902 connection or cable damage QM CN7308 QT CN7900 connection or cable damage

No DTV and No Memorystick. But NTSC is OK. QM CN7342(LVDS-Video) connection or cable damage.

No DTV. But Memorystick and NTSC is OK. QM - QT40Pin FFC connection or cable damage.

No DTV and No NTSC. But Memorystick is OK. RF cable (F-F) or ANT-SW 5pin wire connection or cable damage. QT CN7302 connection or cable damage

No NTSC. But DTV and Memorystick is OK. QT CN7901 is connection or cable damage.

No menu OSD. But Memorystick mode is OK. CN7302 or CN7304 connection or cable damage.

Memorystick is not detected by insertion. USB connection or cable damage.

Only no Digital cable video/audio with POD(CableCARD). ATSC is OK. RF cable (P-P) or 80Pin FFC connection or cable damage. Or POD connector.

KDX-46Q005 service Training 5

Key Component/Circuit failure ATi:QM IC7300 chip failure

Reboot (intermittent video) Distorted graphics (block noise error on Menu or Memorystick)

Power supply failure (QM or Set power) No power (cannot see heart beat LED from jig CN. But can see one of QT LED.)

NTSC demodulator:QT TU7900 failure. No Audio. Distorted audio. No NTSC video.

Tuner:QT TU7901 Inside of FrontEnd failure. No NTSC, No ATSC, No D-Cable.

Digital demodulator:QT TU7901 failure. No DTV(ANT, Cable) May not boot the system.

i.LINK(80/40pin BtoB CN or i.CES:QI IC601 or QFP IC:QI IC802) failure. No i.LINK (D-VHS, DV)

And you can see the repair instruction for QM board on below URLhttp://www-sdeng.sdp.sel.sony.com/VPA/project_atsc2004/design/electrical/test_meas/

file : How to Debug a DTV2004 QM Board.PDF

KDX-46Q005 service Training 6

Digital Module Trouble Shooting

These symptom might be related Digital Module as below.

-No Picturecase1 : NTSC, ATSC and D-Cable are NG i.LINK and MS are OK

-check tuner power and ATSC tunercase2 : NTSC is OK ATSC, MS and i.LINK are NG

- check IC7300(ATi), IC7341(656-601 converter) and IC7342(LVDS Tx)case3:other case

- only NTSC : check TU7900(NTSC demodulator) or TU7901- only i.LINK : check QI board (iCES or DV decoder) or ATi- only D-Cable : check QU connection or IC7900(CXD2099)- only MS : check HM board or ATi

-No Audio- only NTSC : check TU7900(NTSC demodulator)- other RF input and i.LINK : check IC7300 and IC7327(Audio DAC)

-No or strange OSD menu- Check IC7321(GFX PLL), IC7300, IC7331 and IC7332(LVDS Tx)

KDX-46Q005 service Training 7

Key component and functionQM board

-ATi x226 (IC7300):MIPS/DEMUX/MPEG decoder/2D 3D engine etc-CXD9846R (IC7341):656 601 converter-ICS1526GLFT (IC7321):Graphics PLL-IRU3037CSTR (IC7301, 7302):DC DC converter-THC63LVD103 (IC7332):LVDS transmitter for Graphics-CS4335-KSZR (IC7327):Audio DAC-THC63LVDM83C-T (IC7342):LVDS transmitter for Video-16MB NAND flash (IC7318, 7319)-32MB DDR (IC7322, 7323, 7324, 7325)

QT board-BTD-CA801Z (TU7901) :IB tuner/8VSB 64QAM 256QAM QPSK

demodulator/OOB mixer-IMC-450Z (TU7900):NTSC demodulator-CXD2099AR (IC7900):POD interface controller

QI board-uPD72894GD (IC802):DV decoder-CXD9740AZ (IC601):i.LINK PHY

KDX-46Q005 service Training 8

QT Board

ATSC TunerBTD-CA801ZTU7901

Analog IFIMC-450ZTU7900

POD ControllerCXD2099ARIC7900

KDX-46Q005 service Training 9

QM Board A-Side

3.3V DC/DCIRU3037IC7301

2.5V DC/DCIRU3037IC7302

LVDSTransmitterTHC63LVD103IC7302

Graphics PLLICS1526IC7321

656-601ConverterCXD9846RIC7341

LVDSTransmitterTHC63LVDM83CIC7342

KDX-46Q005 service Training 10

QM Board B-Side

ATi X226IC7300

KDX-46Q005 service Training 11

QI Board A-Side QI Board B-Side

i.LINK PHYCXD9740 (iCES)IC601

DV decoderuPD72894IC802

KDX-46Q005 service Training 12

QH Board QUMU Board

Digital Cable ReadyConnection failureKey Component/Circuit failureDigital Module Trouble ShootingKey component and function