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Daewoo DTT-3250MT Service Manual

Color television
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Service Manual

Color Television
CHSSIS MODEL
CP-750
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.
S/M No : TCP750FEF0
DTT-3250
DTT-3250MT
APR. 2006

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Summary of Contents for Daewoo DTT-3250MT

  • Page 1: Service Manual

    Color Television CHSSIS MODEL DTT-3250 CP-750 DTT-3250MT 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.

  • Page 2: Table Of Contents

    CONTENTS 1. SPECIFICATION 2. BLOCK DIAGRAM 3. EEPROM PRESETTING DATA 4. ADJUSTMENT METHOD 5. TROUBLE-SHOOTING 6. SCHEMATIC DIAGRAM 7. PRINTED CIRCUIT BOARD 8. MECHANICAL EXPLODED DIAGRAM 9. PARTS LIST...

  • Page 3: Specification

    AC 220/240V, 50Hz POWER CONSUMPTION 155W PICTURE TUBE 76cm AUDIO OUTPUT 7W(L) + 7W(R), 8 (DTT-3250 ) 10W(L) + 10W(R), 8 (DTT-3250MT) 711(BOX) / 595.5(SET) DIMENSIONS(mm) 1055(BOX) / 930(SET) 515(BOX) / 397(SET) WEIGHT(kg) 63(GROSS) / 54.5(SET) BAND I : CH2~CH4...

  • Page 4: Block Diagram

    2.BLOCK DIAGRAM...

  • Page 5: Eeprom Presetting Data

    3. EEPROM PRESETTING DATA CP-750 EEPROM PRESETTING DATA SERVICE MODE I I. Ver. Geometry(SD) II. Hor. Geometry(SD) 1. Ver. Center(SD) 1. Hor. Center(SD) 2. Ver. Size(SD) -222 2. POFS3(SD) -155 3. Ver. Lin(SD) 3. Hor. Width(SD) 4. Ver. S-Cor(SD) 4. Trapeze(SD) 5.
  • Page 6 EEPROM PRESETTING DATA VII. Tube Measurement VIII. DDPC 3316_1 1. CUT_R +100 1. Brightness 2. CUT_G +100 2. Contrast +470 3. CUT_B +100 3. Sat for RGB2/YCbCr 4. WD_R +400 4. BCL Threshold +400 5. WD_G +400 5. BCL Gain +210 6.

  • Page 7: Adjustment Method

    4. ADJUSTMENT METHOD THE ADJUSTMENT METHOD OF CP-750 WITH USER ROMOTE CONTROLLER(R-49C05) To enter the service mode, press Red button and Green button and MENU key on Ch.91 Then, Service Mode 1 is displayed. If press MODE key, Service Mode 2 is displayed. CONTROL KEY MENU return to former step...
  • Page 8 ADJUSTMENT METHOD HORIZONTAL WIDTH Adjustment Service Mode 1 --> Hor. Geometry --> Hor. Width Adjust so that the Left and the Right ‘5’ marks of the RETMA pattern may be located at the boundaries of the screen. PINCUSHION Adjustment (1) Parabola Adjustment Service Mode 1 -->...

  • Page 9: Trouble-Shooting

    5. TROUBLE-SHOOTING First of all, check the short test of D402,D403 and D408 If short D402, change D402 and if short D403 or D408, repalce them with I301 Other cases, follow this sheet. 1. No Raster Normal Abnormal Check Stand-By LED Check Stand-By Circuit Power On Check...
  • Page 10 TROUBLE-SHOOTING Check secondary voltage Check D811~D817 of IC501 Check #78~#79 of IC501, #11~#12 of IC502 Check #71 of I504 Check #5~#6 of I504 Check #33 of I501 -10-...
  • Page 11 TROUBLE-SHOOTING 2.No Picture(Raster OK) Check/Replace Check Signal Check #8 of I901~I903 I901~I903 #165~#167 of IC501 And Voltage/Heater Line Check/Replace Check/Replace SCL/SDA, 5V Line of Tuner CRT Board Check/Replace SF01 Check/Replace I501 Check/Replace ATT Cable External AV Mode Check External Connection Check Signal Check #175~#184 of IC501...
  • Page 12 TROUBLE-SHOOTING 3.No Vertical Scanning (One Horizontal Line Raster) Check DY Connector Check Check/Replace Input Voltage of I301 D403,D408 Check Check Check/Replace Vertical Drive pulse(Vert #37~#38 C516~C517,R527~R528, #1~#7 of I301 of IC502 R301~R306,R311~R313 Check/Replace B+, X-TAL, SCL, SDA of IC502 Check/Replace -12-...

  • Page 13: No Sound

    TROUBLE-SHOOTING 4.No Sound Check Mute or Volume Level Check Speaker And Connection Check Audio_L/R Check (#6,#12 of I601) #27~#28 of IC501 RF(Analog) External(AV) Check Check #9~#14 #31 of IC501 of IC501 Check/Replace Check/Replace 5V, Check B+, SCL,SDA external condition of Tuner Check/Replace SF01 Check/Replace...
  • Page 14 TROUBLE-SHOOTING 5.Remote Control Unit Trouble Check Replace Battery Battery of Remote Control Check IR of Preamp Check/Replace And Vcc of Preamp (IQ01) Preamp(IQ01) Check/Replace #89 of IC501 -14-...

  • Page 15: Schematic Diagram

    -15-...
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  • Page 18: Printed Circuit Board

    -18-...
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  • Page 24: Mechanical Exploded Diagram

    -24-...

  • Page 25: Electrical Parts List

    9. ELECTRICAL PARTS LIST PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK ZZ100 48B5849C05 TRANSMITTER REMOCON R-49C05 (AAA) PA804 4850710V02 CONNECTOR YH025-10+YBNH250+ULW=100 ZZ110 PTACPWE210 ACCESSORY AS DTT-3250ZH PA805 4950712005 CONNECTOR YH025-12+YST250+ULW=100 4850Q01210 BATTERY LR03 AAA ALKALINE PA806 4950712005 CONNECTOR...
  • Page 26 ELECTRICAL PARTS LIST PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK C921 CMXL1J224J C MYLAR 63V MEU 0.22MF J (TP) C708 CBZF1H104Z C CERA SEMI 50V F 0.1MF Z CA11 CEXF1E470V C ELECTRO RSS 25V 47MF 5X11 P5.0 TA C901 CCZB1H561K C CERA...
  • Page 27 ELECTRICAL PARTS LIST PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK R104 RD-AZ101J- R CARBON FILM 1/6 100 OHM J RA08 RD-AZ750J- R CARBON FILM 1/6 75 OHM J R105 RD-4Z332J- R CARBON FILM 1/4 3.3K OHM J RA09 RD-AZ750J- R CARBON FILM...
  • Page 28 ELECTRICAL PARTS LIST PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK CC713 HCBK104KBA C CHIP CERA 50V X7R 0.1MF K 1608 RC902 HRFT271JBA R CHIP 1/10 270 OHM J 1608 CC714 HCBK104KBA C CHIP CERA 50V X7R 0.1MF K 1608 RC905 HRFT271JBA R CHIP...
  • Page 29 ELECTRICAL PARTS LIST PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK L414 58H0000100 COIL H-LINEARITY TRL-7R5S(2P) E021 4856310600 EYE LET BSR T0.2 (R2.3) L416 58C0000162 COIL CHOKE CH-700Z E022 4856310600 EYE LET BSR T0.2 (R2.3) L418 58C0000162 COIL CHOKE CH-700Z...
  • Page 30 ELECTRICAL PARTS LIST PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK R414 RF01Z278K- R FUSIBLE 1W 0.27 OHM K (TP) D308 DUZ22BM—- DIODE ZENER UZ-22BM R416 RF01Z309J- R FUSIBLE 1W 3 OHM J (TAPPING) D309 DUZ22BM—- DIODE ZENER UZ-22BM R420...
  • Page 31 ELECTRICAL PARTS LIST PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK L406 5CPZ479K04 COIL PEAKING 4.7UH K (AXIAL 10.5MM) I902 PTK1SW8902 HEAT SINK ASS`Y 1TDA6111Q- + 7174300851 L407 85801060GY WIRE COPPER 1/0.6 TIN COATING 00001 1TDA6111Q- IC AMP TDA6111Q L802...
  • Page 32 ELECTRICAL PARTS LIST PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK C922 CCXB2H561K C CERA 500V B 560PF K (TAPPING) J902 85801060GY WIRE COPPER 1/0.6 TIN COATING C923 CMXL2E104K C MYLAR 250V MEU 0.1MF K J903 85801060GY WIRE COPPER 1/0.6 TIN COATING...
  • Page 33 DAEWOO ELECTRONICS CORP. 686, AHYEON-DONG, MAPO-GU, SEOUL, KOREA. C.P.O. BOX 8003 SEOUL KOREA PRINTED DATE : APR. 2006...

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