Daewoo DTD-29U8ME Service Manual
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Daewoo DTD-29U8ME Service Manual

Daewoo DTD-29U8ME Service Manual

Chassis : cm-905f
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Service Manual

Colour Television
CHASSIS : CM-905F
Model
DTD-29U8ME
:
29U8MT
29U8MP
29U8MZ
MODEL OIPTION LIST
MODEL
ME
MT
MP
MZ
DAEWOO ELECTRONICS CO., LTD
http : //svc.dwe.co.kr
S/M No. : TCM905FEF0
TEXT
PIP
O
O
O
X
X
O
X
X
NOVEMBER.2001

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Summary of Contents for Daewoo DTD-29U8ME

  • Page 1: Service Manual

    S/M No. : TCM905FEF0 Service Manual Colour Television CHASSIS : CM-905F Model DTD-29U8ME 29U8MT 29U8MP 29U8MZ MODEL OIPTION LIST MODEL TEXT DAEWOO ELECTRONICS CO., LTD NOVEMBER.2001 http : //svc.dwe.co.kr...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SPECIFICATIONS ......................2 SAFETY INSTRUCTION ....................3 CIRCUIT BLOCK DIAGRAM ..................... 4 ALIGNMENT INSTRUCTIONS ..................5 CM-905F TYPICAL SERVICE DATA .................. 8 SCHEMATIC DIAGRAM ..................... 11 PRINTED CIRCUIT BOARD ....................12 MECHANICAL EXPLODED VIEW AND PARTS LIST ............18 ELECTRICAL PARTS LIST ....................

  • Page 3: Specifications

    SPECIFICATIONS CAUTION Items Model DTD- 29U8ME 29U8MT 29U8MP 29U8MZ TV Standards PAL-SECAM-B/G,D/K,I,NTSC-M,NTSC-4.43(AV) Mains Voltage AC 110~250V, 50/60Hz Power Consumption 130Watts Sound Ouput 7Watts + 7Watts Over (80% MOD.at 1KHz THD.10%) Speaker 10W 8 Ohm (2 pcs) Antenna 75 Ohm Unbalanced. (DIN Standard) Tuning System FS Tuning System Memory Channel...

  • Page 4: Safety Instruction

    SAFETY INSTRUCTION CAUTION NOTE BEFORE SERVICING THIS CHASSIS READ THE “X-RAY RADIATION PRECAUTIONS”, “SAFETY PRECAUTIONS” AND “PRODUCT SAFETY NOTICE” BELOW. X-RAY RADIATION PRECAUTIONS 1. Excessive high voltage can produce potentially hazard- of the high voltage recorded as a part of the service ous X-RAY RADIATION.

  • Page 5: Circuit Block Diagram

    CIRCUIT BLOCK DIAGRAM - 4 -...

  • Page 6: Alignment Instructions

    ALIGNMENT INSTRUCTIONS CAUTION 1. AGC ADJUSTMENT 1) Pattern : PAL B/G 10CH Color BAR (RF Level = 60 dB) 2) Connect the Pattern Generator RF Output to Tuner RF Input. 3) Press the S10 Key of Service Remocon to enter the “AGC MODE”. 4) Execute the “AUTO AGC”...
  • Page 7 ALIGNMENT INSTRUCTIONS 5-3. HORIZONTAL CENTER ADJUSTMENT 1) Pattern : PAL B/G Retma 2) Choose the “H-CENTER” using the Pr-Up/Down Keys. 3) Adjust the vertical line of picture to coincide with the mechanical center marks of the CRT using the Vol-Up/Down Keys. 5-4.
  • Page 8 ALIGNMENT INSTRUCTIONS 6. REMOCON 6-1. SERVICE REMOCON 6-2. USER REMOCON POWER RECALL MUTE ADD/ERASE SURROUND MENU POSITION PAUSE/ TV/VIDEO STILL POSITION SIZE SLEEP R-34SVC 6-3. SERVICE REMOCON 1) Enter SERVICE MODE : Press keys of User Remocon, as follows. Ch91, Sharpness 0, Skip(red), Move(green), Menu. 2) Choice SERVICE MENU : Pr-Up/Down 3) Enter SERVICE SUB MENU : Vol-Up/Down 4) Adjust SERVICE MENU : Vol-Up/Down...

  • Page 9: Cm-905F Typical Service Data

    CM-905F TYPICAL SERVICE DATA CAUTION CM-905F SVC KEY & FUNCTION DESCRIPTION EY N NAME RFUNCTION PRESS THE S1 ONE TINE ----> PRESS THE S1 ANOTHER TIME HEATRUN MODE ON/OFF (HEATRUN MODE) (NORMAL OPRATION) * FBT SCREEN ADJUSTMENT SCREEN PRESS THE S2 ON TIME ----> PRESS THE S2 ANOTHER TIME ON/OFF ADJUSTMENT (HORIZONTAL KINE)
  • Page 10 CM-905F TYPICAL SERVICE DATA CM-905F SVC KEY & FUNCTION DESCRIPTION WHITE BALANCE * ADJUST WHITE BALANCE DATA R LOW BEAM ADJUSTMENT G LOW BEAM ADJUSTMENT B LOW BEAM ADJUSTMENT G HIGH BEAM ADJUSTMENT B HIGH BEAM ADJUSTMENT SUB-BRIGHT ADJUST BRIGHTNESS DATA SUB-CONTRAST ADJUST SUB CONTRAST DATA * MAIN RF AGC ADJUSTMENT KEY...
  • Page 11 CM-905S/SF TYPICAL SERVICE DATA CM-905 SVC KEY & FUNCTION DESCRIPTION CHILD LOCK CH LOCK SUB MENU SERVICE NAME RFUNCTION IITIAL DATA REMOCON NAME PIP ON / OFF (PIP) ON/OFF display a sub-picture SWAP (PIP) The main picture and sub-picture are swapped The sub-picture will be smaller.

  • Page 12: Schematic Diagram

    SCHEMATIC DIAGRAM...

  • Page 13: Printed Circuit Board

    PRINTED CIRCUIT BOARD PCB MAIN - 12 -...
  • Page 14 PRINTED CIRCUIT BOARD - 13 -...
  • Page 15 PRINTED CIRCUIT BOARD - 14 -...
  • Page 16 SCHEMATIC DIAGRAM DAEWOO ELEC. CO., LTD. CM-905/CM-905F PIP BOARD 2000,11,13 REVISION; PIP 1 S/N;4859811724 - 15 -...
  • Page 17 PRINTED CIRCUIT BOARD - 16 -...
  • Page 18 PRINTED CIRCUIT BOARD - 17 -...

  • Page 20: Electrical Parts List

    ELECTRICAL PARTS LIST 6520010100 STAPLE PIN AUTO W65 C308 CEYF1E332V C ELECTRO 25V RSS 3300MF (16X31.5) 2193102005 SOLDER BAR SN:PB=63:47 S63S-1320 C310 CEYD1H689V C ELECTRO 50V RUB 6.8MF (16*35.5) 2TM18006BE TAPE MASKING 6.2X500 C312 CMXM2A104J C MYLAR 100V 0.1MF J (TP) 2TM14006LB TAPE MASKING 3M #232 6.0X2000M...
  • Page 21 ELECTRICAL PARTS LIST C546 CCZF1H103Z C CERA 50V F 0.01MF Z C723 CBZF1H104Z C CERA SEMI 50V F 0.1MF Z C547 CCZF1H103Z C CERA 50V F 0.01MF Z C801 CL1UC3474M C LINE ACROSS 0.47MF 1J(UCVSNDF/SV)+Q/O C548 CEXF1C101V C ELECTRO 16V RSS 100MF (6.3X11) TP C802 CH1BEE472M C CERA AC U/C/V 2.5KV 4700PF TP...
  • Page 22 ELECTRICAL PARTS LIST C926 4SG0DX0001 SPARK GAP SSG-102-A1(1.0KV) D801 PTA1SW8900 HEAT SINK ASS`Y DPBS606GU- + 7174300811 CD01 CCZF1H103Z C CERA 50V F 0.01MF Z D802 PTS2SW6900 HEAT SINK ASS`Y DFMLG16S-- + 7128301011 CP01 CXCH1H100D C CERA 50V CH 10PF D (TAPPING) D803 DLT2A05G-- DIODE...
  • Page 23 ELECTRICAL PARTS LIST E028 4856310300 EYE LET BSR T0.2 (R1.6) I809 1K1A7809P1 IC REGULATOR K1A7809API E029 4856310300 EYE LET BSR T0.2 (R1.6) I901 PT12SW5401 HEAT SINK ASS`Y 1TDA6107Q- + 7174301011 E030 4856310600 EYE LET BSR T0.2 (R2.3) I901 1TDA6107Q- IC VIDEO TDA6107Q E031 4856310600...
  • Page 24 ELECTRICAL PARTS LIST J058 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J126 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J059 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J127 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J061 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J128 85801065GY WIRE COPPER...
  • Page 25 ELECTRICAL PARTS LIST L502 5CPZ100K02 COIL PEAKING 10UH K (AXIAL 3.5MM) M811 4858198100 EPS 29U8 L504 5CPZ100K02 COIL PEAKING 10UH K (AXIAL 3.5MM) M821 4858213800 BAG INSTRUCTION L.D.P.E T0.05X250X400 L505 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING M821 4858215600 BAG P.E PE FOAM T0.5X1600X1270 L506 85801065GY...
  • Page 26 ELECTRICAL PARTS LIST Q906 TKTC3198Y- KTC3198Y R402 RD-AZ331J- R CARBON FILM 1/6 330 OHM J Q907 TKTC3198Y- KTC3198Y R403 RN01B272JS R METAL FILM 1W 2.7K OHM J SMALL Q908 TKTC3198Y- KTC3198Y R404 RD-4Z220J- R CARBON FILM 1/4 22 OHM J Q909 PTF2SW6900 HEAT SINK ASS`Y...
  • Page 27 ELECTRICAL PARTS LIST R583 RD-AZ474J- R CARBON FILM 1/6 470K OHM J R733 RD-AZ332J- R CARBON FILM 1/6 3.3K OHM J R584 RD-AZ473J- R CARBON FILM 1/6 47K OHM J R734 RD-AZ101J- R CARBON FILM 1/6 100 OHM J R585 RD-AZ102J- R CARBON FILM 1/6 1K OHM J...
  • Page 28 ZZ290 PTMPMSD480 PCB MAIN MANUAL AS DTD-29U8ME RP07 RD-AZ101J- R CARBON FILM 1/6 100 OHM J ZZ300 PTU1MSD480 PCB UNION-1 MANUAL A DTD-29U8ME RP08 RD-AZ101J- R CARBON FILM 1/6 100 OHM J ZZ400 PTPMMSD480 PCB PIP MANUAL AS DTD-29U8ME RP09...

  • Page 29: Cm-905F Each Model Parts List

    CM-905F EACH MODEL PARTS LIST - 28 -...
  • Page 30 686, AHYEON-DONG MAPO-GU SEOUL, KOREA C.P.O. BOX 8003 SEOUL, KOREA TELEX : DWELEC K28177-8 CABLE : “DAEWOOELEC” E-mail :djkoo@web.dwe.co.kr...

  • Page 31: Ic Description

    APPENDIX IC DESCRIPTION SDA-55XX ( Micro-controller & Teletext Decoder) Feature General • Feature selection via special function register • Simultaneous reception of TTX, VPS, PDC, and WSS (line 23) • Supply Voltage 2.5 and 3.3V • ROM version package P-SDIP 52, P-MQFP64 P-SDIP-52 •...

  • Page 32: Acquisition Features

    APPENDIX IC DESCRIPTION Acquisition Features • Multistandard Digital Data Slicer • Parallel Multi-norm Slicing (TTX, VPS, WSS, CC, G+) • Four Different Framing Codes Available • Data Caption only Limited by available Memory • Programmable VBI-buffer • Full Channel Data Slicing Supported •...
  • Page 33 APPENDIX IC DESCRIPTION TB1251CN PAL/NTSC/SECAM 1CHIP ( IF + VCD PROCESSOR ) IC The TB1251N is a TV signal processor IC, which contains PIF, SIF, Video, Chroma and deflection signal processors for worldwide Multi-color systems. Also, it has V and EW geometric correction Outputs.
  • Page 34 APPENDIX IC DESCRIPTION TERMINAL INTERFACE PIN NAME FUNCTION INTERFACE IF VCC A Vcc terminal for the IF circuit. Supply 5V. RIPPLE A terminal should be connected to an internal FILTER bias filler. Put a capacilor. SIF OUT An output terminal for a 2’nd SIF signal, that is mixed down by a regenerated carrier.
  • Page 35 APPENDIX IC DESCRIPTION PIN NAME FUNCTION INTERFACE RF AGC An output terminal for RF AGC. A pull up resister is required because of its open collector output. A de-coupling capacitor is also connected to reduce noise. 1’st SIF IN An input terminal for 1’st SIF signal. IF AGC A terminal should be connceted to an IF AGC filter.
  • Page 36 APPENDIX IC DESCRIPTION PIN NAME FUNCTION INTERFACE CW OUT An output terminal for the continuous chroma sub-carrier frequency wave, with an amplitude of 0.7Vp-p (typ). Also the dc level shows chroma killer status, with a level of 3.5V for B/W and 1.5V for Color.
  • Page 37 APPENDIX IC DESCRIPTION PIN NAME FUNCTION INTERFACE IK IN An input terminal to sense AKB cathode current. Connect this terminals to GND if the AKB system is not being used. V RAMP A terminal should be connected wiht a capacitor to generate the V.Ramp signal. The V.Ramp amplitude is kept constant by the V.AGC.
  • Page 38 APPENDIX IC DESCRIPTION PIN NAME FUNCTION INTERFACE REF. R A terminal should be connected with resistance to stabilize internal current sources. Connect 5.6 1% resistance to GND. 6.8k ABCL IN An input terminal for ABL/ACL control. Control voltage range is 5.5~6.0V. The ratio of ABL versus ACL can be set by bus control.
  • Page 39 APPENDIX IC DESCRIPTION PIN NAME FUNCTION INTERFACE H OUT An output terminal for horizontal driving pulses. DIG GND A GND terminal for digital block. An input terminal for IICBUS clock. 3.25V An input/output terminal for IICBUS data. 3.25V BLACK DET A terminal should be connected with Black det.
  • Page 40 APPENDIX IC DESCRIPTION PIN NAME FUNCTION INTERFACE DIG.VDD A Vdd terminal for of digital block. Supply HVcc voltage through 270 ohms of H VCC resistance. The voltage of this terminal is clipped to approximately 3.3V by the internal regulator. 2.6V SYNC IN An input terminal for Sync signal.
  • Page 41 APPENDIX IC DESCRIPTION PIN NAME FUNCTION INTERFACE EW OUT An output terminal for E-W out. Y/C VCC An Vcc terminal for Y/C circuit. Supply 5V. C-IN An input terminal for chroma signal. (standard burst amplitude level 286mVp-p) The Iow/High impedance status of this pin can be read by bus to detect if S port is connceted or not.
  • Page 42 APPENDIX IC DESCRIPTION PIN NAME FUNCTION INTERFACE LOOP FILTER A terminal to be connected with loop filter for PIF PLL. The terminal voltage controls the PIF VCO frequency. 1.5k EHT IN The input terminal for EHT. The ratio of EW/V is controlled by bus. 3.5V De-Emphasis A terminal to De-Emphasis Audio signal, and...
  • Page 43 APPENDIX IC DESCRIPTION PIN NAME FUNCTION INTERFACE 52 DC NF A terminal for connect the capacitor for DC 53 VCO Bias Filter A terminal to be connected with a filler for PIF VCO. 1.5k 54 IF DET OUT Detected PIF output terminal. (typical output level 2.2Vp-p) 55 AFT OUT An output terminal for AFT.

  • Page 44: Trouble Shooting Charts

    APPENDIX TROUBLE SHOOTING CHARTS CAUTION 1. NO RASTER CHECK MAIN B+(132V) NORMAL ABNORML CHECK Heater Voltage CHECK VOLTAGE VIDEO B+(220V) LINE OF C805(470uF) 27V & 12V 295Vdc AT AC 220V NORMAL NORMAL ABNORML ABNORML CHECK / REPLACE CHECK Horizontal drive CHECK /REPLACE I801 pluse AT PIN 32 OF I501...
  • Page 45 APPENDIX TROUBLE SHOOTING CHARTS 2. NO OICTHRE (RASTER OK) CHECK SIGNAL AT PIN 39 OF I501 NORMAL ABNORML CHECK SIGNAL AT PIN CHANGE INPUT MODE 22,23,24 OF I501 RF -> AV -> RF NORMAL ABNORML CHECK SIGNAL CHECK VOLTAGE AT PIN IF OF TUNER 14 OF I501 ABNORML...
  • Page 46 APPENDIX TROUBLE SHOOTING CHARTS 3. NO COLOR CHECK SIGNAL AT PIN 43 OF I501 ABNORMAL NORMAL CHECK SIGNAL AT PIN CHECK SYSTEM MODE 3 OF I571 AUTO -> PAL -> SECAM ABNORMAL CHECK SIGNAL AT PIN CHECK / REPLACE 20,21,22 OF I501 Q203,Q201,D201 Q205,D202 CHECK / REPLACE...
  • Page 47 APPENDIX TROUBLE SHOOTING CHARTS 4. NO PIP PICTURE & NO ON-SCREEN DISPLAY(PICTURE OK) 4-1. NO PIP PICTURE (MAIN PICTURE OK) CHECK SIGNAL AT P904 TV,AV,AV2(SIGNAL) ABNORMAL NORMAL CHECK SIGNAL AT CHECK SIGNAL AT P904 Q205,JP01,JP02 HORI & VERTI SYNC ABNORMAL NORMAL CHECK 9V LINE &...
  • Page 48 APPENDIX TROUBLE SHOOTING CHARTS 4-2. NO ON-SCREEN DISPLAY (PICTURE OK) CHECK SIGNAL AT PIN 38,39,40,41 OF I701 (OSD & TEXT SIGNAL) CHECK SIGNAL AT PIN 19,20 (HORI. & VERTI, ABNORMAL SYNC) OF I701 NORMAL CHECK SIGNAL AT PIN 15,16,17,18 OF I501 (OSD &...
  • Page 49 APPENDIX TROUBLE SHOOTING CHARTS 5. NO MAIN SOUND (PICTURE OK) CHECK VOLTAGE AT PIN OF I601 ABNORMAL NORMAL CHECK SIGNAL AT PIN CHECK / REPLACE 1,2,14,15 OF I601 D817,L601 NORMAL ABNORMAL CHECK SIGNAL AT PIN CHECK / REPLACE 4,12 OF I601 P604, P603 NORMAL ABNORMAL...

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