Daewoo DTD-29U8ME Service Manual Download Page 48

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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

15,16,17,18 OF I501

(OSD & TEST SIGNAL)

CHECK SIGNAL AT PIN

20,21,22 OF I501

CHECK / REPLACE

I501

NORMAL

CHECK SIGNAL AT PIN

19,20 (HORI. & VERTI,

SYNC) OF I701

CHECK / REPLACE

PIP BOARD

NORMAL

ABNORMAL

Summary of Contents for DTD-29U8ME

Page 1: ...l Colour Television CHASSIS CM 905F Model DTD 29U8ME 29U8MT 29U8MP 29U8MZ S M No TCM905FEF0 DAEWOO ELECTRONICS CO LTD http svc dwe co kr NOVEMBER 2001 MODEL OIPTION LIST MODEL TEXT PIP ME O O MT O X M...

Page 2: ...UCTIONS 5 CM 905F TYPICAL SERVICE DATA 8 SCHEMATIC DIAGRAM 11 PRINTED CIRCUIT BOARD 12 MECHANICAL EXPLODED VIEW AND PARTS LIST 18 ELECTRICAL PARTS LIST 19 CM 905F EACH MODEL PARTS LIST 28 APPENDIX App...

Page 3: ...MOD at 1KHz THD 10 Speaker 10W 8 Ohm 2 pcs Antenna 75 Ohm Unbalanced DIN Standard Tuning System FS Tuning System Memory Channel 100 Channels Remocon Control R 44C07 Reception Channel VHF BAND1 CH2 CH4...

Page 4: ...special safety related characteristics These characteristics are often passed unnoticed by a visual inspection and the X RAY RADIATION protection afforded by them cannot necessarily be obtained by usi...

Page 5: ...4 CIRCUIT BLOCK DIAGRAM...

Page 6: ...E ADJUSTMENT 1 Press the NORMAL Key to set the NORMAL 1 mode 2 Press the S8 Key of Service Remocon to enter the WHITE BALANCE mode 3 Adjust the each color R G B which appears abnormally on the screen...

Page 7: ...2 Choose the PARABOLA using the Pr Up Down Keys Adjust parabola width to fit on screen 3 Choose the CORNER using the Pr Up Down Keys Adjust coner parabola to fit on screen 4 Choose the TRAPEZIUM using...

Page 8: ...ss 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 S1 S2 S3 S4 S5 S6 S7 S8 S9 S11 RECALL S10 S12 MUTE POWER TV CATV A...

Page 9: ...T 00 CONTRASR 32 CONTRAST 63 RRIGHT 00 BRIGHT 32 BRIGHT 63 COLOR 00 COLOR 32 COLOR 63 RELEASE ADJUST NORMAL1 DATA INITIAL DATA CONTRAST 63 63 RRIGHT 32 32 COLOR 32 32 SHARPNESS 32 32 ADJUST GEOMETRY D...

Page 10: ...USTMENT KEY AGC TUNER AGC VOLTAGE 3 5Vdc AUTO AGC DATA 32 OPTION MODE ADJUSTMENT KEY INITIAL DATA TEXT ARABIC CYRILLIC IRANIAN EAST LATIN WEST LATIN ARABIC POWER ON START ON OFF ON DIGITAL EYE ON OFF...

Page 11: ...utton again 4 TV VIDEO PIP TV VIDEO To select the input for the sub pictrue 5 POSITION PIP POSITION The display position of the sub picture will changed S2 DATA changed RB 128 128 GB 0 0 6 SCREEN V PO...

Page 12: ...SCHEMATIC DIAGRAM 11...

Page 13: ...PRINTED CIRCUIT BOARD PCB MAIN 12...

Page 14: ...13 PRINTED CIRCUIT BOARD...

Page 15: ...14 PRINTED CIRCUIT BOARD...

Page 16: ...15 SCHEMATIC DIAGRAM DAEWOO ELEC CO LTD CM 905 CM 905F PIP BOARD 2000 11 13 REVISION PIP 1 S N 4859811724...

Page 17: ...16 PRINTED CIRCUIT BOARD...

Page 18: ...17 PRINTED CIRCUIT BOARD...

Page 19: ......

Page 20: ...1 TP C308 CEYF1E332V C ELECTRO 25V RSS 3300MF 16X31 5 C310 CEYD1H689V C ELECTRO 50V RUB 6 8MF 16 35 5 C312 CMXM2A104J C MYLAR 100V 0 1MF J TP C401 CEXF1H101V C ELECTRO 50V RSS 100MF 8X11 5 TP C402 CCX...

Page 21: ...V F 0 1MF Z C722 CBZF1H104Z C CERA SEMI 50V F 0 1MF Z C723 CBZF1H104Z C CERA SEMI 50V F 0 1MF Z C801 CL1UC3474M C LINE ACROSS 0 47MF 1J UCVSNDF SV Q O C802 CH1BEE472M C CERA AC U C V 2 5KV 4700PF TP C...

Page 22: ...DUZ5R1B DIODE ZENER UZ 5 1B D589 DUZ5R6BM DIODE ZENER UZ 5 6BM D592 DUZ5R6BM DIODE ZENER UZ 5 6BM D701 D1N4004S DIODE 1N4004S D704 D1N4148 DIODE 1N4148 TAPPING D705 DUZ2R4B DIODE ZENER UZ 2 4B D801 PT...

Page 23: ...H IC PHOTO SENSOR PNA4603H IF01 1TS0P1238W IC PREAMP TS0P1238WI1 IP01 1SDA9488XE IC CHIP PIP SDA9488X IP02 1LP295033 IC REGULATOR LP2950 3 3V J001 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING J002...

Page 24: ...N COATING J123 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING J124 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING J125 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING J126 85801065GY WIRE COPPER AWG...

Page 25: ...0 95X17MMX1000M M681 4856812001 TIE CABLE NYLON66 DA100 M683 2TF15025CL TAPE FILAMENT T0 15XW25X50M CLEAR M683 4856812001 TIE CABLE NYLON66 DA100 M781 4857817630 CLOTH BLACK FELT 400X20X0 7 M782 4857...

Page 26: ...XIDE FILM 2W 180 OHM J TAPPING R402 RD AZ331J R CARBON FILM 1 6 330 OHM J R403 RN01B272JS R METAL FILM 1W 2 7K OHM J SMALL R404 RD 4Z220J R CARBON FILM 1 4 22 OHM J R405 RN02B102JS R METAL FILM 2W 1K...

Page 27: ...M J R729 RD AZ101J R CARBON FILM 1 6 100 OHM J R732 RD AZ101J R CARBON FILM 1 6 100 OHM J R733 RD AZ332J R CARBON FILM 1 6 3 3K OHM J R734 RD AZ101J R CARBON FILM 1 6 100 OHM J R735 RD AZ101J R CARBON...

Page 28: ...1K OHM J RP15 RD AZ102J R CARBON FILM 1 6 1K OHM J RS01 RN01B151JS R METAL FILM 1W 150 OHM J SMALL RS02 RN01B151JS R METAL FILM 1W 150 OHM J SMALL SCT01 4859303130 SOCKET CRT PCS628 05B SF101 5PK7252M...

Page 29: ...C707 R747 R748 J137 P904 ZZ400 29U8ME RD AZ561J RD AZ561J CMXM2A104J RD AZ472J NONE NONE 4859281320 PTMMSD405 29U8MP NONE NONE NONE RD AZ472J NONE NONE 4859281320 PTMMSD405 29U8MT RD AZ561J RD AZ561J...

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: ...clock max 0 360 s min instruction cycle Two 16 bit timers Watchdog timer Capture compare timer for infrared remote control decoding Pulse width modulation unit 2 channels 14 bit 6 channels 8 bit ADC 4...

Page 32: ...urement and Controlled Noise Compensation Attenuation Measurement and Compensation Group Delay Measurement and Compensation Exact Decoding of Echo Disturbed Signals Ports One 8 bit I O port with open...

Page 33: ...C O tank coil alignment free for L system Positive demodulation V low Ch AM Sound demodulation Sprit carrier VIDEO STAGE Built inY delay line 8 adjustable steps Built in C trap filter Swithable VSM o...

Page 34: ...ncies are able to convert into only 6 5MHz in order to eliminate SIF BPFs to single 6 5MHz 4 AUDIO OUT An output terminal for audio signal FM Det signal inputted to pin53 is output An internal audio a...

Page 35: ...for 1 st SIF signal 10 IF AGC A terminal should be connceted to an IF AGC filter Connect 2 2uF capacitor to Vcc 11 APC FILTER A terminal should be connected with an APC filter for chroma demodulation...

Page 36: ...or EXT RGB signals The 17 EXT G IN signals are clamped by capacitors therefore 18 EXT B IN the input impedance should be low 100 ohms or less is recommended For this input the brightness and RGB contr...

Page 37: ...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 25 V NFB An input terminal for the V saw tooth signal feedback If...

Page 38: ...voltage range is 5 5 6 0V The ratio of ABL versus ACL can be set by bus control 29 H ARC FILTER A terminal should be connected with H AFC Filter to GND The DC voltage of this pin controls the H VCO fr...

Page 39: ...SCL An input terminal for IICBUS clock 35 SDA An input output terminal for IICBUS data 36 BLACK DET A terminal should be connected with Black det filler for black stretch This terminal voltage contro...

Page 40: ...level Input is through a low impedance buffer input level 1Vp p 140IRE 39 Y IN An input terminal forY signal The pedestal level is clamped by means of charging discharging the coupling capacitor ther...

Page 41: ...pin can be read by bus to detect if S port is connceted or not 44 Cr IN Input terminals for Cb Cr signals 45 Cb IN This terminal is clamped by charging discharging the coupling capacitors It is recom...

Page 42: ...nd Mon OUT pick up detected Audio signal Connect capacitor 0 01 F to GND The time constant 50 75us is set by the IICBUS control SIF Freq Remove the capacitor in case of us US JPN sound multiplex syste...

Page 43: ...l to be connected with a filler for PIF VCO 54 IF DET OUT Detected PIF output terminal typical output level 2 2Vp p 55 AFT OUT An output terminal for AFT output dc range 0 2 5 5V output impedance 50 k...

Page 44: ...K REPLACE X701 6MHz I701 ABNORML ABNORML CHECK Heater Voltage VIDEO B 220V LINE 27V 12V NORMAL CHECK Horizontal drive pluse AT PIN 32 OF I501 ABNORML CHECK REPLACE I801 STR F6656 NORMAL CHECK REPLACE...

Page 45: ...PIN 54 OF I501 CHECK REPLACE I571 Peripheral Compnents ABNORML NORMAL CHECK REPLACE SF 101 Q102 Q203 CHECK REPLACE SCL SDA SIGNAL TUNER NORMAL ABNORML ABNORML CHECK SIGNAL AT PIN 22 23 24 OF I501 CHE...

Page 46: ...M MODE AUTO PAL SECAM CHECK SIGNAL AT PIN 20 21 22 OF I501 CHECK SIGNAL AT CATHOD OF CRT NORMAL CHECK REPLACE CRT BOARD NORMAL CHECK SIGNAL AT PIN 3 OF I571 CHECK REPLACE Q203 Q201 D201 Q205 D202 CHEC...

Page 47: ...P904 HORI VERTI SYNC CHECK 9V LINE SCL SDA AT P901 CHECK 5V 3 3V LINE AT PIP BOARD CHECK SIGNAL AT PIN 15 16 17 18 OF IP01 CHECK SIGNAL AT PIN 15 16 17 18 OF I501 NORMAL CHECK SIGNAL AT Q205 JP01 JP02...

Page 48: ...SIGNAL AT PIN 38 39 40 41 OF I701 OSD TEXT SIGNAL CHECK SIGNAL AT PIN 15 16 17 18 OF I501 OSD TEST SIGNAL CHECK SIGNAL AT PIN 20 21 22 OF I501 CHECK REPLACE I501 NORMAL CHECK SIGNAL AT PIN 19 20 HORI...

Page 49: ...2 CHECK SIGNAL AT PIN 3 5 OF I602 CHECK SIGNAL AT PIN 49 OF I501 CHECK SIGNAL AT PIN 56 OF I501 CHECK SIGNAL AT PIN 3 OF I501 NORMAL ABNORMAL ABNORMAL ABNORMAL ABNORMAL ABNORMAL ABNORMAL CHECK REPLACE...

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