Daewoo DTH-20D5FS Service Manual

Color television

Advertisement

Quick Links

Service Manual

Color Television
CHASSIS : CM-220B
Model : DTH-20D5FS
DTH-21D4FS
DTH-20D5FS
SPECIFICATIONS
MODEL
ITEM
TV STANDARD
POWER INPUT
POWER CONSUMPTION
TUNING SYSTEM
TUNING RANGES
SOUND OUTPUT
SPEAKER
ANTENNA INPUT IMPEDANCE
AUXILIARY INPUT TERMINAL
INTERMEDIATE FREQUENCIES
REMOTE CONTROL
SPECIAL FUNCTIONS
 Caution
: In this Manual, some parts can be changed for improving, their
performance without notice in the parts list. So, if you need the
latest parts information,please refer to PPL(Parts Price List) in
Service Information Center (http://svc.dwe.co.kr).
DAEWOO ELECTRONICS CO., LTD.
http : //svc.dwe.co.kr
S/M No. : TCM220MEF0
DTH-21D4FS
DTH-20D5FS
PAL-M/N
220V 50/60 HZ
88W
Frequency Synthesizer (FS) Tuning System
TV
VHF(L) : CH 2 ~ CH 6
UHF(H) : CH 7 ~ CH 13
UHF
: CH 14 ~ CH 69
CATV
VHF(L) : 5A, A ,B, A-5 - A-1
CH 2 - CH 6
VHF(H) : C - W +11
CH 7 - CH 13
UHF
: W+12 - W +84
5W + 5W
8 ohm 5W x 2EA
75 ohm Unbalanced
Font : Video, Audio, Earphone
Rear : Video, Audio, (R,L)
Picture IF Carrier Frequency : 45.75 MHZ
Sound IF Carrier Frequency : 41.25 MHZ
Color Sub-Carrer Frequency : 3.579545 MHZ
R-43A01
1) ICON MENU TYPE
2) 3-Language OSD
3) WITH CAPTION
4) CH LABEL
DTH-2104FS
Sep. 2000

Advertisement

Table of Contents
loading

Summary of Contents for Daewoo DTH-20D5FS

  • Page 1: Service Manual

    S/M No. : TCM220MEF0 Service Manual Color Television CHASSIS : CM-220B Model : DTH-20D5FS DTH-21D4FS DTH-20D5FS DTH-21D4FS SPECIFICATIONS MODEL DTH-2104FS DTH-20D5FS ITEM PAL-M/N TV STANDARD POWER INPUT 220V 50/60 HZ POWER CONSUMPTION TUNING SYSTEM Frequency Synthesizer (FS) Tuning System VHF(L) : CH 2 ~ CH 6...
  • Page 2: Table Of Contents

    TABLE OF CONTENTS SPECIFICATIONS ......................2 CIRCUIT BLOCK KIAGRAM ..................3 ALIGNMENT INSTRUCTION..................4 Your Remote Control ......................... 4 Service Mode Adjustment......................5 Assembly Adjustment ........................ 6 SCHEMATIC DIAGRAM ....................10 EXPLODED VIEW......................11 PRINTED CIRCUIT BOARD ..................13 SERVICE PARTS LIST....................14 TROUBLE SHOOTING GUIDE..................
  • Page 3: Specifications

    SPECIFICATIONS CM-220B MODEL DTH-20D5FS DTH-21D4FS ITEM TV STANDARD PAL-M/N POWER INPUT 220V 50/60HZ POWER CONSUMPTION TUNING SYSTEM Frequency Synthesizer (FS) Tuning System VHF(L) : CH 2 ~ CH 6 UHF(H) : CH 7 ~ CH 13 : CH 14 ~ CH 69...
  • Page 4: Circuit Block Diagram

    CIRCUIT BLOCK DIAGRAM A/V IN 1 A/V IN 2 EARPHONE SOUND IC SOUND TUNER MSP3430G DT5-NF20F TDA7266 MAIN IC TRAP DCT814B (1) (2) FILTER IF DET. SW1 ~ u-COM IC VIDEO OSD RGB LC863240 TDA6103Q EEPROM X-RAY SOUND SCL SOUND SDA 220V VERTICAL HOR.
  • Page 5: Alignment Instruction

    ALIGNMENT INSTRUCTION Your Remote Control 1. POWER use this button to turn your TV on or off. 2. MUTE Use to turn the TV's sound on and off. MUTE POWER Use these buttons to change your TV's volume, to activate selections in the menu system. MENU Use thesebuttons to change your TV's volume, to activate selections in the meny system, or to change...
  • Page 6: Service Mode Adjustment

    ALIGNMENT INSTRUCTIONS SERVICE MODE ADJUSTMENTS Follow the steps below whenever service adjustment is required. See Table- A and Table- B to determine if service adjustments are required. 1) How to enter the service mode using the user remote control. · Turn the set on. ·...
  • Page 7: Assembly Adjustment

    ALIGNMENT INSTRUCTIONS Table-B DATA MODE ADJUSTMENT ITEMS REMARKS INITIAL RANGE Screen Adjustment Auto RF AGC Video Level (VIDEOL) 0 ~ 7 Must be set to 7 RF AGC Delay (RFAGCD) 0 ~ 63 Align RF AGC threshold FM Level (FM.LEV) 0 ~ 31 Must be set to 20 AGC Point...
  • Page 9 ALIGNMENT INSTRUCTIONS 4-3. Vertical Size Adjustment · Select “V.SIZE” item, adjust “V.SIZE” data value to proper vertical size as follows. 5) WHITE BALANCE ADJUSTMENT(S8) · Receive a good local channel. · Enter the service mode and select service adjustment S8. ·...
  • Page 10 ALIGNMENT INSTRUCTIONS · Select Subbrightness item, adjust Subbrightness data value to obtain normal brightness level. · Press the DISPLAY button to memorize the data. CONTRAST · Fixed value = 10 TINT · Fixed value = 27 COLOR · Fixed value = 15 7) FACTORY OUTGOING MODE (S12 : FACT) ·...
  • Page 11: Schematic Diagram

    SCHEMATIC DIAGRAM CM-220B CHASSIS...
  • Page 12: Exploded View

    EXPLODED VIEW DTH-20D5FS...
  • Page 13 EXPLODED VIEW DTH-21D4FS...
  • Page 14: Printed Circuit Board

    PRINTED CIRCUIT BOARD...
  • Page 15: Service Parts List

    PPL(Parts Price List) in Service information Center(http://svc.dwe.co.kr) PART CODE PART NAME PART DESCRIPTION REMARK ZZ100 48B4343A01 TRANSMITTER REMOCON R-43A01 (AA) ZZ110 PTACPWD362 ACCESSORY AS DTH-20D5FS 4850A02510 ANT ROD S3BW216B (L=600 MM) 4850Q00810 BATTERY R6P/LN 4850A02050 TRANS ANT MATCHING UMT PA 002 M821 4858213800 BAG INSTRUCTION L.D.P.E T0.05X250X400...
  • Page 16 SP01 4858310910 SPEAKER 7.5W 8 OHM 95BF03LC SP02 4858310910 SPEAKER 7.5W 8 OHM 95BF03LC ZZ290 PTMPMSD362 PCB MAIN MANUAL AS DTH-20D5FS C403 CCYB2H103K C CERA 500V B 0.01MF K C404 CMYH3C662H C MYLAR 1.6KV BUP 6600PF H C406 CMYE2D514J C MYLAR 200V PU 0.51MF J...
  • Page 17 X701 5XYR03276C CRYSTAL QUARTZ C-001R 32.768000KHZ 20PPM Z501 5PYXT4R5MB FILTER CERA XT 4.5MB ZZ200 PTFMSJD362 PCB MAIN (RHU) AS DTH-20D5FS C105 CEXF1C471V C ELECTRO 16V RSS 470MF (10X12.5)TP C310 CEXF1E102V C ELECTRO 25V RSS 1000MF (13X20) TP C410 CEXF2E100V C ELECTRO...
  • Page 18 C965 CCXB3D102K C CERA 2KV B 1000PF K (TAPPING) L800 58Q0000093 COIL DELAY LINE RS208 ZZ200 PTFMSJD362 PCB MAIN M-10 AS DTH-20D5FS P601 485923172S CONN WAFER YW025-04 (STICK) R303 RS02Z129JS R M-OXIDE FILM 2W 1.2 OHM J SMALL R412 RS01Z479J- R M-OXIDE FILM 1W 4.7 OHM J (TAPPING)
  • Page 19 SERVICE PARTS LIST PART CODE PART NAME PART DESCRIPTION REMARK C411 CEXF1H100V C ELECTRO 50V RSS 10MF (5X11) TP C412 CCXB2H102K C CERA 500V B 1000PF K (TAPPING) C413 CCXB2H102K C CERA 500V B 1000PF K (TAPPING) C416 CCXB2H102K C CERA 500V B 1000PF K (TAPPING) C417 CCXB2H102K...
  • Page 20 SERVICE PARTS LIST PART CODE PART NAME PART DESCRIPTION REMARK C669 CEXF1E101V C ELECTRO 25V RSS 100MF (6.3X11) TP C682 CMXM2A224J C MYLAR 100V 0.22MF J C683 CEXF1H109V C ELECTRO 50V RSS 1MF (5X11) TP C684 CMXM2A224J C MYLAR 100V 0.22MF J C685 CEXF1E470V C ELECTRO...
  • Page 21 THVH472GCA SW705 5S50101090 SW TACT THVH472GCA SW706 5S50101090 SW TACT THVH472GCA ZZ200 PTFMSJD362 PCB MAIN AXIAL AS DTH-20D5FS A001 4859814492 PCB MAINN 330X246 S1B C151 CCZF1H103Z C CERA 50V F 0.01MF Z C152 CCZF1H103Z C CERA 50V F 0.01MF Z...
  • Page 22 SERVICE PARTS LIST PART CODE PART NAME PART DESCRIPTION REMARK C553 CCZB1H101K C CERA 50V B 100PF K (AXIAL) C560 CCZF1H103Z C CERA 50V F 0.01MF Z C562 CZCH1H150J C CERA 50V CH 15PF J (AXIAL) C565 CCZF1H103Z C CERA 50V F 0.01MF Z C567 CCZB1H181K...
  • Page 23 SERVICE PARTS LIST PART CODE PART NAME PART DESCRIPTION REMARK C967 CZCH1H150J C CERA 50V CH 15PF J (AXIAL) CA02 CCZB1H102K C CERA 50V B 1000PF K (AXIAL) CA13 CCZB1H102K C CERA 50V B 1000PF K (AXIAL) CA14 CCZB1H102K C CERA 50V B 1000PF K (AXIAL) D101 DUZ33B----...
  • Page 24 SERVICE PARTS LIST PART CODE PART NAME PART DESCRIPTION REMARK DA11 DMTZJ5R6B- DIODE ZENER MTZJ 5.6B DA12 DMTZJ5R6B- DIODE ZENER MTZJ 5.6B J001 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J004 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J005 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J006...
  • Page 25 SERVICE PARTS LIST PART CODE PART NAME PART DESCRIPTION REMARK J050 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J051 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J053 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J054 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J055 85801065GY WIRE COPPER...
  • Page 26 SERVICE PARTS LIST PART CODE PART NAME PART DESCRIPTION REMARK J093 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J094 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J095 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J096 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J097 85801065GY WIRE COPPER...
  • Page 27 SERVICE PARTS LIST PART CODE PART NAME PART DESCRIPTION REMARK J140 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J143 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J144 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J145 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J146 85801065GY WIRE COPPER...
  • Page 28 SERVICE PARTS LIST PART CODE PART NAME PART DESCRIPTION REMARK R156 RD-AZ473J- R CARBON FILM 1/6 47K OHM J R165 RD-AZ472J- R CARBON FILM 1/6 4.7K OHM J R351 RD-AZ562J- R CARBON FILM 1/6 5.6K OHM J R352 RN-4Z1603F R METAL FILM 1/4 160K OHM F R353 RN-4Z1602F...
  • Page 29 SERVICE PARTS LIST PART CODE PART NAME PART DESCRIPTION REMARK R561 RD-AZ561J- R CARBON FILM 1/6 560 OHM J R562 RD-AZ824J- R CARBON FILM 1/6 820K OHM J R563 RD-AZ333J- R CARBON FILM 1/6 33K OHM J R567 RD-AZ103J- R CARBON FILM 1/6 10K OHM J R568 RD-AZ472J-...
  • Page 30 SERVICE PARTS LIST PART CODE PART NAME PART DESCRIPTION REMARK R712 RD-AZ473J- R CARBON FILM 1/6 47K OHM J R731 RD-AZ103J- R CARBON FILM 1/6 10K OHM J R732 RD-AZ102J- R CARBON FILM 1/6 1K OHM J R733 RD-AZ102J- R CARBON FILM 1/6 1K OHM J R734 RD-AZ102J-...
  • Page 31 SERVICE PARTS LIST PART CODE PART NAME PART DESCRIPTION REMARK R802 RD-4Z514J- R CARBON FILM 1/4 510K OHM J R803 RD-4Z333J- R CARBON FILM 1/4 33K OHM J R805 RD-4Z392J- R CARBON FILM 1/4 3.9K OHM J R809 RD-4Z514J- R CARBON FILM 1/4 510K OHM J R813 RD-4Z363J-...
  • Page 32 Different Part List CM-220B Different Part List PART NAME DTH-20D5FS DTH-21D4FS PART CODE PART DESC. PART CODE PART DESC. C404 C MYLAR CMYH3C662H 1.6KV BUP 6600PF H CMYH3C752H 1.6KV BUP 7500PF H CRT1 4859631667 A48JLL91X50(P) M16 4859625560 A51EFK155X01 J018 WIRE COPPER 85801065GY AWG22 1/0.65 TIN COATING...
  • Page 33: Troubleshooting Guide

    APPENDIX TROUBLESHOOTING GUIDE 1. NO POWER FROM FBT 10V Check R416 Check F801(125V 4A) D801 D801(PBS208GU) RLY01 F801 R801 PCW1 L801 Check R801(7W 2.2) TO I101 #34 T801 C819 Check D807 Voltage 133V R814 C814 133V C804 Check C820 waveform TUNER D808 R809...
  • Page 34: No Picture

    APPENDIX TROUBLESHOOTING GUIDE 2. NO PICTURE NG : GO to the figure c Check the waveform of I101 #46 OK : Go the figure d Check the voltages U102 SF101 IF OUT TUNER SAW FILTER T-DATA T-CLOCK Check clock/data signal Check #29 #30 IF AGC voltage...
  • Page 35: No Sound

    APPENDIX TROUBLESHOOTING GUIDE 3. NO SOUND NG : Go to the figure e Check audio output signal of I101 #1 OK : Go to the figure f U102 SF101 IF OUT TUNER SAW FILTER T-DATA T-CLOCK Check #29 #30 IF AGC voltage Check I701 SIF output signal...
  • Page 36: Ch Don't Stop

    APPENDIX TROUBLESHOOTING GUIDE 4. CH DON’T STOP NG : Loss of signal or weak signal Check the input signal conditions OK : Go to the figure g Check 5V/33V LINE U102 SF101 IF OUT TUNER SAW FILTER T-DATA T-CLOCK AGC IN C103 #29 #30 RF AGC OUTPUT...
  • Page 37: No Color

    APPENDIX TROUBLESHOOTING GUIDE 5. NO COLOR Check Check C.V.S waveform the voltage composite video in Video/Chroma/Deflection Vcc Check the crystal Check the voltage I101 X502 RGB Vcc (9V) R OUT G OUT B OUT Check R/G/B signal 6. NO VERTICAL DEFLECTION Check the voltage Check...
  • Page 38: No On-Screen Display

    APPENDIX TROUBLESHOOTING GUIDE 7. NO ON-SCREEN DISPLAY Check the signal (60Hz) V.SYNC IN Check I701 clock/data signal H.SYNC IN MICOM I101 OSD R Check OSD G the signal (15,734Hz) OSD B BLANK #11 #12 XC701 32.768KHz Check ST-BY OSD R/G/B/BLANK signal Check the crystal If OSD does not operate,...

This manual is also suitable for:

Dth-21d4fs

Table of Contents