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Daewoo DTU-14XX ME Service Manual

Chassis : cm-500s
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Service Manual

Color Television
CHASSIS :
Model :
DTU-14XX ME/MP/MT/MZ/BZ/AT
DTU-20XX ME/MP/MT/MZ/BZ/AT
DTU-21XX ME/MP/MT/MZ/BZ/AT
DTU-21XX MEF/MPF/MTF/MZF/BZF
MODEL OPTION LIST
MODEL
ME
MP
MT
MZ
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/G No.:TCM500SEF0
CM-500S
TEXT
PIP
O
O
X
O
O
X
X
X
APR. 2006

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Summary of Contents for Daewoo DTU-14XX ME

  • Page 1: Service Manual

    S/G No.:TCM500SEF0 Service Manual Color Television CHASSIS : CM-500S Model : DTU-14XX ME/MP/MT/MZ/BZ/AT DTU-20XX ME/MP/MT/MZ/BZ/AT DTU-21XX ME/MP/MT/MZ/BZ/AT DTU-21XX MEF/MPF/MTF/MZF/BZF MODEL OPTION LIST MODEL TEXT 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

    TABLE OF CONTENTS 1. MOBEL DISCRIPTIONS OF CM-500S CHASSIS 2. SPECIFICATIONS 3. SAFETY INSTRUCTION 4. ALIGNMENT INSTRUCTIONS 5. RECOMMANDED EEPROM DATA FOR CM-500S 6. ELECTRICAL PARTS LIST 7. DIFFERENT PARTS LIST FOR EACH MODELS 8. SCHEMATIC DIAGRAM 9. PRINTED CIRCUIT BOARD 10.

  • Page 3: Mobel Discriptions Of Cm-500S Chassis

    1. MODEL DESCRIPTIONS 1. Model Descriptions of Cm -500S Chassis 1-1. MODEL list CRT size Enclosure Type Power Sound Output Model name (14,20,21) (@@) Consumption (at 1KHz 80% Mod.) DTU-14@@##$$ 14 inch FST DTU-14@@## 55 W 4W + 4W (Normal) DTU-14@@ 20,D2,D3,D4,D7,D8, DTU-20@@##$$...

  • Page 4: Specifications

    2. SPECIFICATIONS Items Model DTU-14XX ME/MP/MT/MZ/BZ/AT DTU-20XX ME/MP/MT/MZ/BZ/AT DTU-21XX ME/MP/MT/MZ/BZ/AT DTU-21XX MEF/MPF/MTF/MZF TV Standard Color system PAL/SECAM, NTSC-4.43(AV) Sound system B/G, D/K, I, H Rated Voltage AC 110-250V, 50/60Hz Power consumption 14”: 55W, 20”:64W, 21”: 72W, 21”FLAT:74W Sound Output Power 14”...

  • Page 5: Safety Instruction

    3 SAFETY INSTRUCTION NOTE : BEFORE SERVICING THIS CHASSIS READ THE “X-RAY RADIATION PRECAUTIONS”, “SAFETY PRECAUTIONS” AND “PRODUCT SAFETY NOTICE” BELOW. X-RAY RADIATION PRECAUTION 1. Excessive high voltage can produce potentially hazardous X-RAY RADIATION. To avoid such hazards, the high voltage must not exceed the specified limit. The nominal value of the high voltage of this receiver is 25.6KV [Normal Type](27.9KV [Flat Type]) at max beam current.

  • Page 6: Alignment Instructions

    4. ALIGNMENT INSTRUCTIONS DOCUMENT HISTORY VERSION DATE COMMENTS V0.00 26/10/04 Document imported from project Cp520(Author J.D.Santos) V1.00 12/11/04 Major revision after visit in Gunpo RND V1.01 25/11/04 Tuner option revision(Byte1, bite2,1,0) V1.02 29/11/04 Curtain beep option added(Byte3, bits1) Curtain ON/OFF bit setting corrected V1.03 02/12/04 Local key option bit changed.
  • Page 7 ALIGNMENT INSTRUCTIONS 4.1MICROCONTROLLER CONFIGURATION : SERVICE MODE To switch the TV set into service mode please see instruction below. 1 - Select PR. number 91 2 - Adjust sharpness to minimum and exit all menus. 3 - Within 2 seconds press the key sequence : RED - GREEN - menu The software version is displayed beside the word Service, e.g.
  • Page 8 PARS AV out : Digital eye remote functions logo monitor disabled control enabled Fixed to Local key option (see table below) Daewoo Koran AV out : Digital eye Remote functions Tuner enabled control disabled 1.3 OPTION3 Chassis Beep at Curtain...
  • Page 9 ALIGNMENT INSTRUCTIONS 4.4 USER GUIDE WARNING : Until SW version x.56, Option Byte 4 can only be accessed by NVM editor at NVM address 0x752 From SW version x.56, it can also be accessed fr om Factory mode or from Service mode.
  • Page 10 ALIGNMENT INSTRUCTIONS 4.5 CONTROL DESCRIPTION 4.5.1 OPTION 1 BITS TOP Teletext (Bit 7) Enables/disables the TV from displaying TOP row 24 link titles, and the dedicated TOP menu table. A FLOF (if available) or SIMPLE / PAGETRACE presentation will be used. FLOF/Fastext (Bit 6) Enables/disables the TV from displaying FLOF row 24 link titles.
  • Page 11 Remocon (Bit 6) User remote control configuration, the choice being between the following; § NEC remocon ( 1) § Daewoo R-46G22 ( 0) The R-30SVC7 FACTORY remote control will never be affected by this setting. AV out option (Bit 5) This allow you to select the desired signal at output pin 46.
  • Page 12 ALIGNMENT INSTRUCTIONS 4.5.4 Teletext language option (Bit 6, 5& 4) Bit 6, 5& 4 Latin West Latin East Russia Persia Arabic Automatic Automatic Teletext National Option table for each language option : Teletext table C12 C13 C14 Basic Char. Twist Char. Set Latin Latin English...
  • Page 13 ALIGNMENT INSTRUCTIONS East / West correction (Bit 3) You must enable this bit for large screen CRT which need EAST WEST correction circuitry. PIP (Bit 2) Enable disable PIP function. Make sure PIP board is inserted in the main board. Beep at curtain opening (Bit 1) Enable / disable beep sound at power ON.
  • Page 14 4.5.2 OPTION 2 BITS - Remote control(Bit 7) This is not intended to be changed by use of the FACTORY remote control. - NEC/Daewoo Remocon(Bit 6) User remote control configuration, the choise being between the following; - NEC remocon(‘1’) - Daewoo R-49C07(‘0’) The R-30SVC7 “FACTORY”...
  • Page 15 ALIGNMENT INSTRUCTIONS - Teletext language option(Bit 6, 5&4) Bit6, 5&4 Latin West Latin East Russia Persia Arabic Not used Not used Teletext National Option table for each language option: Teletext table C12 C13 C14 Basic Char.Set Twist Char.Set Latin West Latin Latin English...
  • Page 16 ALIGNMENT INSTRUCTIONS 4.5.4 TV SET ALIGNMENT (1) G2 ALIGNMENT - Tune a colour bar pattern. - Fine the “G2-SCREEN” item in service mode. - Adjust screen volume(on FBT) to make the horizontal line just before disappeared. (2) WHITE BALANCE - Select a dark picture and adjust RED BIAS and GRN BIAS to the desired colour temperature. - Select a bright picture and adjust RED, GRN and BLUE GAIN to the desired colour temperature.
  • Page 17 ALIGNMENT INSTRUCTIONS HOR WIDTH adjust for 90% overscan. PARABOLA CORNER B & CORNER T EW TRAPEZ 3.7.7 AGC - Make sure option bits are correct for the tuner fitted on the chassis (See above how to change option bits). - Adjust the antenna signal level at 62 dB V± 2 - Tune a colour bar pattern.

  • Page 18: Remote Control

    ALIGNMENT INSTRUCTIONS Remote control TELETEXT MODE TV MODE POWER POWER SOUND MUTE SOUND MUTE NUMBER 0..9 NUMBER 0..9 TV / AV NORMAL RECALL VOL/BRIGHT MENU SELECTION MENU PAGE UP PROGRAM UP (CURSOR UP) VOL / BRIGHT DOWN VOLUME DOWN (CURSOR LEFT) VOL / BRIGHT UP VOLUME UP (CURSOR RIGHT) PAGE DOWN...

  • Page 19: Recommanded Eeprom Data For Cm-500S

    OPTION 1 Name FIXED REMOCON AV OUTPUT KORAN LOCAL KEY LOCAL KEY D/EYE PARS OPTION 2 Monitor DAEWOO Name CURTAIN TXT L a nguage TXT L a nguage TXT L a nguage BEEP STEREO OPTION 3 Name Rserved Rserved Rserved...

  • Page 20: Electrical Parts List

    6. ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK ZZ100 48B5849C07 TRANSMITTER REMOCON R-49C07 (AAA) ZZ131 48519A7610 CRT GROUND NET 2103S-1015-1P ZZ132 58G0000177 COIL DEGAUSSING DC-21SF AL V901 4859648660 A51AKL15X36 (M) P601A 4850704S31 CONNECTOR YH025-04+YRT205+ULW800400 SP01 4858317510 SPEAKER SP-58126F01C SP02 4858317510...
  • Page 21 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK C515 CEXF1H229V C ELECTRO 50V RSS 2.2MF (5X11) TP C517 CEXF1C101V C ELECTRO 16V RSS 100MF (6.3X11) TP C518 CEXF1H229V C ELECTRO 50V RSS 2.2MF (5X11) TP C519 CEXF1C101V C ELECTRO 16V RSS 100MF (6.3X11) TP C521 CEXF1H100V...
  • Page 22 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK C616 CCZB1H102K C CERA 50V B 1000PF K (AXIAL) C617 CCZB1H102K C CERA 50V B 1000PF K (AXIAL) C618 CCZB1H102K C CERA 50V B 1000PF K (AXIAL) C619 CCZB1H102K C CERA 50V B 1000PF K (AXIAL) CCZF1H473Z C CERA...
  • Page 23 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK C828 CCZB1H561K C CERA 50V B 560PF K C901 CCZB1H331K C CERA 50V B 330PF K (AXIAL) C902 CCZB1H331K C CERA 50V B 330PF K (AXIAL) C903 CCZB1H331K C CERA 50V B 330PF K (AXIAL) C904 CCXB3A271K...
  • Page 24 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK D305 D1N4148—- DIODE 1N4148 (TAPPING) D401 D1N4937G— DIODE 1N4937G (TAPPING) D402 D1N4148—- DIODE 1N4148 (TAPPING) D403 D1N4148—- DIODE 1N4148 (TAPPING) D404 D1N4937G— DIODE 1N4937G (TAPPING) D501 D1N4148—- DIODE 1N4148 (TAPPING) D502 D1N4148—- DIODE...
  • Page 25 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK E245 4856310600 EYE LET BSR T0.2 (R2.3) E246 4856310600 EYE LET BSR T0.2 (R2.3) E247 4856310600 EYE LET BSR T0.2 (R2.3) E248 4856310600 EYE LET BSR T0.2 (R2.3) E281 4856310600 EYE LET BSR T0.2 (R2.3) E282...
  • Page 26 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK J037 85801060GY WIRE COPPER 1/0.6 TIN COATING J038 85801060GY WIRE COPPER 1/0.6 TIN COATING J039 85801060GY WIRE COPPER 1/0.6 TIN COATING J040 85801060GY WIRE COPPER 1/0.6 TIN COATING J041 85801060GY WIRE COPPER 1/0.6 TIN COATING J042...
  • Page 27 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK J092 85801060GY WIRE COPPER 1/0.6 TIN COATING J093 85801060GY WIRE COPPER 1/0.6 TIN COATING J094 85801060GY WIRE COPPER 1/0.6 TIN COATING J096 85801060GY WIRE COPPER 1/0.6 TIN COATING J097 85801060GY WIRE COPPER 1/0.6 TIN COATING J098...
  • Page 28 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK L301 5MC0000100 COIL BEAD HC-3550 L401 58H0000055 COIL H-LINEARITY TRL-361A L501 5CPZ479K02 COIL PEAKING 4.7UH K (AXIAL 3.5MM) L502 5CPZ479K02 COIL PEAKING 4.7UH K (AXIAL 3.5MM) L503 5CPZ479K02 COIL PEAKING 4.7UH K (AXIAL 3.5MM) L504 5CPZ479K02...
  • Page 29 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK P601 485923172S CONN WAFER YW025-04 (STICK) P701 485923172S CONN WAFER YW025-04 (STICK) P901 4850708N08 CONNECTOR BIC-08T-25T+C-20T+ULW=400 PD01 485923162S CONN WAFER YW025-03 (STICK) PD01A 4850703S18 CONNECTOR YH025-03+YBNH250+ULW=200 PW801 4859902910 CORD POWER AS KKP419C+BL102NG+TUBE=2100 Q101 TKTC3198Y-...
  • Page 30 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK RD-AZ224J- R CARBON FILM 1/6 220K OHM J R301 RD-AZ202J- R CARBON FILM 1/6 2K OHM J R302 RD-AZ202J- R CARBON FILM 1/6 2K OHM J R303 RD-AZ471J- R CARBON FILM 1/6 470 OHM J R304 RN-4Z1501F...
  • Page 31 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK R524 RD-AZ103J- R CARBON FILM 1/6 10K OHM J R525 RD-AZ562J- R CARBON FILM 1/6 5.6K OHM J R526 RD-AZ103J- R CARBON FILM 1/6 10K OHM J R527 RD-AZ562J- R CARBON FILM 1/6 5.6K OHM J R528 RD-AZ362J-...
  • Page 32 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK R719 RD-AZ511J- R CARBON FILM 1/6 510 OHM J R720 RD-AZ122J- R CARBON FILM 1/6 1.2K OHM J R722 RD-AZ101J- R CARBON FILM 1/6 100 OHM J R723 RD-AZ101J- R CARBON FILM 1/6 100 OHM J R724 RD-AZ472J-...
  • Page 33 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK R909 RD-AZ271J- R CARBON FILM 1/6 270 OHM J R910 RD-2Z680J- R CARBON FILM 1/2 68 OHM J R911 RD-4Z102J- R CARBON FILM 1/4 1K OHM J R912 RD-2Z202J- R CARBON FILM 1/2 2K OHM J R913 RD-2Z202J-...
  • Page 34 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK SF102 5PK9650M— FILTER SAW K9650M SW01 5S50101090 SW TACT THVH472GCA SW02 5S50101090 SW TACT THVH472GCA SW03 5S50101090 SW TACT THVH472GCA SW04 5S50101090 SW TACT THVH472GCA SW05 5S50101090 SW TACT THVH472GCA SW06 5S50101090 SW TACT...

  • Page 35: Different Parts List For Each Models

    7. DIFFERENT PARTS FOR EACH INCH CM-500S CRT Different PARTS for Each Inch 21" NORMAL CRT Difference Parts CPT 21" OHPT 21" (Mini) ASSY LOC Part Name R ENARK Part Code Part Description Part Code Part Description CABINET V901 CRT AS / CRT 4859640860 A51AEZ90X27 P38 PTRTPWC004 PAL 21"...
  • Page 36 DIFFERENT PARTS FOR EACH INCH -35-...
  • Page 37 DIFFERENT PARTS FOR EACH INCH CM-500S Booster Different Parts DTU-xxxx DTU-xxxx BZ ME/MP/MT/MZ/AT ASS’Y PART NAME PART CODE PART DESCRIPTION PART CODE PART DESCRIPTION U101 TUNER VARACTOR 4859722630 TECC2949PG35W 4859729630 TAEM-G605D ** Note) EEPROM OPTION BIT should be changed for suitable Function (Tuner Option / Bit 2,1 and 0 of Option 1) CM-500S TELETEXT Different Parts DTU-xxxx ME/MT/AT...
  • Page 38 DIFFERENT PARTS FOR EACH INCH -37-...
  • Page 39 DIFFERENT PARTS FOR EACH INCH -38-...

  • Page 40: Schematic Diagram

    -39-...

  • Page 41: Printed Circuit Board

    -40-...

  • Page 42: Mechanical Exploded View And Parts List

    ABS GY MATERIAL REMARKS PART CODE PART NAME Q’ty Designed by Checked by Inspected by Approved by PART NAME UNITS K.G.S DEVELOPMENT DWG SCALE 02/02/18 MODEL DTD-14D 9MZ Daewoo Electronics CO.,LTD. 485009 KC Team 4, TV Research Center REFERENCE CM-90 -41-...

  • Page 43: Trouble Shooting Guide

    MATERIAL REMARKS Q ty Designed by Checked by Inspected by Approved by PART NAME UNITS GJ YANG DEVELOPMENT DWG SCALE MODEL DTD-20D9 DAEWOO Electronics CO.,LTD. 485009KE Mechani c al Desi g n Team, TV Research Center REFERENCE CM-90 7S -42-...
  • Page 44 BUTTON POWER ABS GY MATERIAL REMARKS PART CODE PART NAME Q’ty Designed by Checked by Inspected by Approved by PART NAME UNITS y.k.park DEVELOPMENT DWG SCALE MODEL DTD-21D9 DAEWOO Electronics Corp. 485009LA Mechanical Design Team, TV Research Center REFERENCE CM-907S -43-...
  • Page 45 HIPS GY MATERIAL REMARKS PART CODE PART NAME Q’ty Designed by Checked by Inspected by Approved by ASSY NAME UNITS Y.W.KANG S.D.PARK DEVELOPMENT DWG(1/1) SCALE MODEL DTC/DTD-2131 DAEWOO Electronics Corp. 485009JY Mechanical Design Team, TV Research Center REFERENCE CM-907S -44-...
  • Page 46 11. TROUBLE SHOOTING CHARTS 1. NO RASTER CHECK MAIN B+(130V/133V: Flat Model) ABNORMAL CHECK VOLTAGE CHECK HEATER VOLTAGE OF C850 VIDEO B+(189V) LINE 295VDC AT 230V NORMAL NORMAL ABNORMAL CHECK/REPLACE F801 ABNORMAL CHECK/REPLACE CHECK Horizontal I801 AT PIN 73 OF I701 (STR-W6756) NORMAL CHECK/REPLACE...
  • Page 47 TROUBLE SHOOTING CHARTS 2. NO PICTURE(RASTER OK) CHECK SIGNAL AT PIN 1 OF Z701 NORMAL ABNORMAL CHANGE INPUT MODE CHECK SIGNAL AT PIN RF --> AV --> RF 83, 84, 85 OF I701 NORMAL CHANGE SIGNAL CHECK VOLTAGE AT PIN IF OF TUNER 22,43,45,63,80 OF I701 ABNORMAL...
  • Page 48 TROUBLE SHOOTING CHARTS 3. NO COLOR ABNORMAL CHECK SIGNAL AT 28,29 PIN OF I701 NORMAL CHANGE THE SYSTEM CHECK/REPLACE PAL ---> SECAM IF OF TUNER NORMAL ABNORMAL CHECK/REPLACE CHECK R,G,B SIGNAL Z701, Z702 83,84,85TH OF I701 CHECK/REPLACE CRT PART -47-...
  • Page 49 TROUBLE SHOOTING CHARTS 4. NO PICTURE ABNORMAL NORMAL CHECK CHECK SIGNAL OUT AT 28,29 OF I701 R,G,B OF I701 ABNORMAL CHECK / REPLACE CHANGE INPUT MODE I701 RF --> AV --> RF CHECK CHECK SIGNAL AT CHECK/REPLACE NORMAL AV Signal IF OF TUNER SCL, SDA, B+ ABNORMAL...
  • Page 50 TROUBLE SHOOTING CHARTS 5. NO VERTICAL SCANNING(ONE HORIZONTAL LINE RASTER) CHECK DY CONNECTOR NORMAL ABNORMAL CHECK INPUT CHECK/REPLACE VOLTAGE OF I301 D410, D301 46V LINE, 16V LINE NORMAL ABNORMAL CHECK NORMAL CHECK VERTICAL INPUT 76,77 PIN OF I701 (Vin) OF I301 ABNORMAL ABNORMAL CHECK...
  • Page 51 TROUBLE SHOOTING CHARTS 6. NO MAN SOUND(RF) NORMAL CHECK SIGNAL AT PIN CHECK 8,9,11,12, OF I601 Speaker & Connector ABNORMAL NORMAL CHECK SIGNAL AT PIN Replade I601 2,4 OF I601 NORMAL ABNORMAL NORMAL CHECK SIGNAL AT PIN CHECK/REPLACE 57,58, I701 R602, R604, R605, R606, R606, C606...
  • Page 52 TROUBLE SHOOTING CHARTS 7. NO EXTERNAL AV(RF OK) CHECK CONNECTION OF AV1,AV2,DVD1,DVD2 NORMAL CHECK SIGNAL AT PIN ABNORMAL CHECK Signal of 49,52,55,68,69,70 OF I701 AV1,AV2,DVD1,DVD2 NORMAL ABNORMAL CHECK SIGNAL AT PIN CHECK / REPLACE R,G,B 83,84,85 OF I701 I701 NORMAL ABNORMAL CHECK SIGNAL AT CHECK/REPLACE...
  • Page 53 TROUBLE SHOOTING CHARTS 8. REMOTE CONTROL UNIT TROUBLE ABNORMAL REPLACE CHECK BATTERY AND BATTERY LED OF REMOCON NORMAL ABNORMAL REPLACE CHECK IR OF PREAMP PREAMP IC(IF01) AND VCC OF PREAMP IC(IF01) NORMAL CHECK / REPLACE 2’nd PIN OF I701 -52-...
  • Page 54 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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