Zenith ZDA311 Series Service Manual Download Page 35 | Manualshive

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5. VIDEO & AUDIO Block Diagram

IC604

VIDEO 6dB

Amp

IC301

AUDIO DA

C

(5.1C

H

)

IC601

(OP Amp)

LPF&Buffer

IC302

(OP Amp)

LPF&Buffer

IC303

(OP Amp)

LPF&Buffer

IC304

(OP Amp)

LPF&Buffer

CVBS

COM

PONENT (R.G.B) /

(Y.Pb.

Pr)

SUP

ER

VIDEO (Y/

C)

(R.G.B) / (Y.Pb.Pr

)

(Y/C)

DAC R

E

S

E

T

ACLK

SCL

SDA

ADATA

1

ADATA

2

ADATA

3

A/

V

JACK

MPEG

MPEG

MPEG

5.1CH BOARD

FRONT '

R

'

REAR '

R

'

FRONT '

L

'

REAR '

L

'

CENTE

R

WOOF

ER

AUDIO

'

L'

AUDIO

'

R'

AL

AR

All manuals and user guides at all-guides.com

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Summary of Contents for ZDA311 Series

Page 1: ...1 Cabinet Main Chassis 2 Electrical 3 Parts List 4 Published March 2005 by Technical Publications Zenith Electronics Corporation 201 James Record Road Huntsville Alabama 35824 1513 Copyright 2005 by Zenith Electronics Corporation Printed in U S A Model Series CONTENTS ZDA 311 All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 2: ...CONTENTS SECTION 1 SUMMARY SECTION 2 CABINET MAIN CHASSIS SECTION 3 ELECTRICAL SECTION 4 REPLACEMENT PARTS LIST All manuals and user guides at all guides com ...

Page 3: ...FETY SERVICING GUIDELINES FOR VIDEO PRODUCTS 1 3 SERVICING PRECAUTIONS 1 4 General Servicing Precautions Insulation Checking Prodedure Electrostatically Sensitive Devices SPECIFICATIONS 1 5 1 2 All manuals and user guides at all guides com ...

Page 4: ...GE IS AT THE FACTORY SPECIFIED LEVEL THE PROPER VALUE IS GIVEN IN THE APPLICABLE SCHEMATIC OPERA TION AT HIGHER VOLTAGES MAY CAUSE A FAILURE OF THE PIC TURE TUBE OR HIGH VOLTAGE SUPPLY AND UNDER CERTAIN CIR CUMSTANCES MAY PRODUCE RADIATION IN EXCESS OF DESIR ABLE LEVELS 2 ONLY FACTORY SPECIFIED C R T ANODE CONNECTORS MUST BE USED DEGAUSSING SHIELDS ALSO SERVE AS X RAY SHIELD IN COLOR SETS ALWAYS R...

Page 5: ...s Earphone jacks etc Electrostatically Sensitive ES Devices Some semiconductor solid state devices can be damaged easily by static electricity Such components commonly are called Electrostatically Sensitive ES Devices Examples of typical ES devices are integrated circuits and some field effect transistors and semiconductor chip components The following techniques should be used to help reduce the ...

Page 6: ...tive sync RCA jack x 1 Pb Pr 0 7 V p p 75 Ω RCA jack x 2 AUDIO OUT 2 0 Vrms 1 KHz 0 dB 600 Ω RCA jack L R x 1 DIGITAL OUT COAXIAL 0 5 V p p 75 Ω RCA jack x 1 SYSTEM Laser Semiconductor laser wavelength 650 nm Signal system PAL NTSC Frequency response DVD PCM 96 kHz 8 Hz to 44 kHz DVD PCM 48 kHz 8 Hz to 22 kHz CD 8 Hz to 20 kHz Signal to noise ratio More than 100 dB ANALOG OUT connectors only Harmo...

Page 7: ...ECTION 2 CABINET MAIN CHASSIS CONTENTS EXPLODED VIEWS 2 2 1 Cabinet and Main Frame Section 2 2 2 Deck Mechanism Section DP 9 2 3 3 Packing Accessory Section 2 4 All manuals and user guides at all guides com ...

Page 8: ...S 1 Cabinet and Main Frame Section 463 A00 283 463 463 250 463 463 A48 5 1CH Model ONLY A47 A46 463 465 A44 260 261 280 A43 A42 A49 452 452 261 467 320 300 A 5 4 3 2 1 B C D All manuals and user guides at all guides com ...

Page 9: ...Section DP 9 2 3 A00 439 014 018 001 002 003 A01 A02 020 013 017 012 435 015 019 026 A03 036 021 430 438 035 025 024 010 431 435 012A 035A 012A 015A 015B 432 030 016 440 012 All manuals and user guides at all guides com ...

Page 10: ...23 PACKING SHEET 804 PACKING OPTIONAL PARTS 803 806 820 OWNER S MANUAL RF CABLE 810 CABLE SET ASS Y 801 REMOCON 900 BOX CARTON 802 PACKING 803 811 812 PLUG ASS Y 1WAY YELLOW PLUG ASS Y 1WAY BLACK PLUG ASS Y 2WAY All manuals and user guides at all guides com ...

Page 11: ...ONDITION 3 17 10 TRACKING CONTROL RELATED SIGNAL System checking 3 18 11 MT1389D AUDIO OPTICAL AND COAXIAL OUTPUT SPDIF 3 19 12 MT1389D VIDEO OUTPUT WAVEFORM 3 19 13 AUDIO OUTPUT FROM AUDIO DAC 3 20 BLOCK DIAGRAMS 3 21 1 Overall Block Diagram 3 21 2 Power SMPS Block Diagram 3 22 3 SERVO Block Diagram 3 23 4 MPEG MEMORY Block Diagram 3 24 5 VIDEO AUDIO Block Diagram 3 25 CIRCUIT DIAGRAMS 3 26 1 Pow...

Page 12: ...nt at emitter of Q121 Replace Q121 Replace IC101 Is there a DC voltage at Cathode of D105 or D107 Check FR101 No 5V Is 3 4VA section working Replace Q126 Is 5 6V present at collector of Q126 NO YES YES YES YES Check D105 D106 D107 D108 and replace YES YES A B NO NO NO All manuals and user guides at all guides com ...

Page 13: ...sed Tray Close to Closed position SLED at Inner Side SLED Moves to Inner Position 1 Judge whether have disc and disc type 2 Jump to related disc reading procedure Recieve OPEN CLOSE Key 1 Execute Pressed Key IR Key 2 System operation Routine Loop 1 Stop Playback Open Tray 2 Display tray open message LOGO Receive CLOSE Key All manuals and user guides at all guides com ...

Page 14: ...DC outputs normal on main PCBA YES Connect to PC RS232 Cable and update the FLASH memory code YES Update FLASH successfully YES A Replace power PCBA or AC transformer NO Repair or Replace Power PCBA NO Check the regulators or related diodes NO 1 Check 27MHz system clock 2 Check system reset circuit 3 Check FLASH R W enable signal PRD RWR 4 Check RS232 SIGNALS 5 Check FLASH Memory related circuit N...

Page 15: ...AM is damaged NO MT1389D VIDEO outputs properly Check the related circuit of MT1389D NO Have TV signal output Check AV cable connection to TV set Normal TROUT TRIN signals Check the filtering and amp circuit of TV signal NO Check the load OPEN CLOSE switch NO Normal TRCLOSE TROPEN signal Check the Tray control IO pins on MT1389D IP9008 NO Normal LOAD LOAD signal Check the cable connection between ...

Page 16: ...gnal NO Is FMSO DC Level higher than 1 4V Check the related circuit of FMSO NO SL and SL output properly YES Check the amp circuit on motor driver Check FOSO connection on MT1389D and motor dirver NO NO Check the cable connection with MECHA Proper FOSO outputs to motor driver Proper F F outputs Check the amp circuit on motor dirver NO Check cable connect on with pick up head All manuals and user g...

Page 17: ...e related circuit on laser power transistor NO Check cable connection between transistor ouput and pick up head YES YES YES Check the related circuit on MT1389D RFL signal Check DMSO related circuit on MT1389D NO NO Check the spindle control amp circuit of motor driver NO Laser off Proper RFL signal on MT1389D Check LDO1 LDO2 signal Proper DMSO signal on MT1389D SP SP output properly Check the cab...

Page 18: ...on on MT1389D and motor driver NO Check FOSO signal on MT1389D YES YES Check the TRSO connection on MT1389D and motor dirver NO Check the tracking control amp circuit on motor driver NO Normal TEO Signal on MT1389D NO Check the related circuit on MT1389D Properly TRSO signal on MT1389D T T output properly Check cable connection on pick up head Check RFO RFLVL signal waveform All manuals and user g...

Page 19: ... YES Check connection between MT1389D Audio DAC NO Normal Audio DAC out YES Check the related circuit of Audio DAC NO Check Audio filter amplify mute circuit Communications between IR VFD Front panel key MT1389D is normally NO Check communication lines on MT1389D Check the cable connection on Front panel All manuals and user guides at all guides com ...

Page 20: ...M TEST AND DEBUGGING 1 SYSTEM 27MHz CLOCK RESET FLASH R W SIGNAL 1 MT1389D main clock is at 27MHz X501 FIG 1 1 1 0V 27MHz 2 MT1389D reset is low active FIG 1 2 Reset Time 3 3VA PWR_CTL RESET All manuals and user guides at all guides com ...

Page 21: ...11 3 RS232 waveform during procedure Downloading FIG 1 3 TXD RXD 4 Flash R W enable signal during download Downloading FIG 1 4 PRD PWR All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 22: ...3 12 2 SDRAM CLOCK FIG 2 1 3 TRAY OPEN CLOSE SIGNAL FIG 3 1 DCLK 128MHz Vp p 2 2 Vmax 2 7V TRIN TROUT TRCLOSE TROPEN All manuals and user guides at all guides com ...

Page 23: ...SC CONDITION FIG 4 1 5 LENS CONTROL RELATED SIGNAL NO DISC CONDITION FIG 5 1 FOSO 1 5V 1 4V 1 3V F 3 2V 2 7V 2 2V F 3 2V 2 7V 2 2V FMSO 1 9V 1 4V 1 1V STBY 3 3V SL 4 2V 2 8V 1 2V SL 4 2V 2 8V 1 5V All manuals and user guides at all guides com ...

Page 24: ...CONTROL RELATED SIGNAL NO DISC CONDITION FIG 6 1 7 DISC TYPE JUDGEMENT WAVEFORM FIG 7 1 DVD DCLK 128MHz Vp p 2 2 Vmax 2 7V F FE RFL MDI1 0V 180mV LD01 3 3V 2 3V LD02 3 3V 2 3V All manuals and user guides at all guides com ...

Page 25: ...3 15 FIG 7 2 DVD FIG 7 3 CD F F FE FE RFL RFL All manuals and user guides at all guides com ...

Page 26: ...3 16 FIG 7 4 CD 8 FOCUS ON WAVEFORM FIG 8 1 DVD FE FOSO F F F FE RFL All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 27: ...3 17 FIG 8 2 CD 9 SPINDLE CONTROL WAVEFORM NO DISC CONDITION FIG 9 1 FOSO F DMSO 1 4V 1 8V SP 3 6V 2 4V SP 3 6V 4 8V FE F All manuals and user guides at all guides com ...

Page 28: ...3 18 10 TRACKING CONTROL RELATED SIGNAL System checking FIG 10 1 DVD FIG 10 2 CD TE TRSO T T TE TRSO T T All manuals and user guides at all guides com ...

Page 29: ...3 19 11 MT1389D AUDIO OPTICAL AND COAXIAL OUTPUT SPDIF FIG 11 1 12 MT1389D VIDEO OUTPUT WAVEFORM 1 100 FIG 12 1 TE TRSO T T All manuals and user guides at all guides com ...

Page 30: ...3 20 2 COMPOSITE VIDEO SIGNAL FIG 13 2 13 AUDIO OUTPUT FROM AUDIO DAC FIG 13 1 All manuals and user guides at all guides com ...

Page 31: ...V33A VD18A VD33A 3V3M 5V MIC R L VIDEO BUFFER RS232_TXD MIC_DECT IECDAOUT COAXIAL SPDI D2_T 1 3 SCART_16 9 RGB_SEL LD01 LD01 V20 5 6VA LIMIT TRIN TROUT ROMDATA 0 7 5V IC901 LED DRIVER IR POWER BOARD POWCTL H DMUTE IIC VFD DAC_SCK IC503 1M 16BIT SDRAM VD33D MA 00 11 DMCLK CSJ BA0 BA1 DQM WEJ CASJ RASJ IIC VFD DAC_TXD IC501 MTK 1389D 12V YC_MIX SER 0 2 DAC_ML1 TROPEN TRCLOSE FOSO TRSO FMSO DMSO DAC_...

Page 32: ... 2V FILTER SWITCHING IC TRANS FEED B 3 4VA RECTIFIER 5 6V RECTIFIER 9 5V LPF RECTIFIER 14V LPF 12V PWR CTL 5V 5 6V M 5 6VA RECTIFIER 3 4V LPF AC100 240V RECTIFIER REG T W WITH 1389C WITH 1389D All manuals and user guides at all guides com ...

Page 33: ...TROPEN ADIN F F T T SL SL LOAD LOAD 27MHz X TAL LD0 1 LDO 2 IOA MDI 1 AL PC V20 PICKSEL LIMIT TRIN TROUT TRCLOSE STBY V1P4 IC503 1M x 16bit SDRAM MA 0 11 DQM0 DQM1 WE CAS RAS CS BA0 BA1 SDCLK SDCKE DQ 0 15 FLASH ROM PRD PWR PCE AD 0 7 A 0 20 EEP ROM SCL SDA RS232C MTK RXD TXD 3 SERVO Block Diagram All manuals and user guides at all guides com ...

Page 34: ...DEO Interface AUDIO Interface LED DRIVE IC IC503 SDRAM 16M DCLK WE CAS RAS CS DCKE MA 0 10 DQM0 DQM1 DQ 0 15 X501 27MHz AMDAT ACLK ABCK ALRCK KARAOKE BOARD SCL SDA Y2 Y Y3 Color Y4 Y Y5 Cb Y6 Cr ASPECT 16 9 AMUTE DMUTE AL AR ASPDIF PWR PCE PRD A 0 20 AD 0 7 DIN DOUT IC505 RESET IC RESET All manuals and user guides at all guides com ...

Page 35: ...LPF Buffer IC303 OP Amp LPF Buffer IC304 OP Amp LPF Buffer CVBS COMPONENT R G B Y Pb Pr SUPER VIDEO Y C R G B Y Pb Pr Y C DAC RESET ACLK SCL SDA ADATA1 ADATA2 ADATA3 A V JACK MPEG MPEG MPEG 5 1CH BOARD FRONT R REAR R FRONT L REAR L CENTER WOOFER AUDIO L AUDIO R AL AR All manuals and user guides at all guides com ...

Page 36: ...All manuals and user guides at all guides com a l l g u i d e s c o m ...

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