Daewoo DTH-29M2FS Service Manual Download

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4. CH DON’T STOP

Check the input signal conditions

NG : Loss of signal or weak signal

OK : Go to the figure g

TU102

TUNER

I701

MICOM

#11 #12

#29 #30

SDA

SCL

33V

IF OUT

#14

AFT

#29

#30

SDA

SCL

AGC IN

X 702

32.768KHz

#10

ST-BY

Check

the crystal

I702

EEPROM

ST-BY

SDA

SCL

Check

SDA/SCL

Check

5V/33V LINE

#15

C109

Check

RF AGC Voltage

Check

AFT window Voltage

SF101

SAW FILTER

I101

#11

#12

#10

RF AGC

#49

#48

L105

VCO COIL

Check

VCO coil

2.1V~2.5V

AGC

TROUBLESHOOTING GUIDE Appendix

Summary of Contents for DTH-29M2FS

Page 1: ...cy 41 25MHz Color Sub Carrier Frequency 3 579545MHz R 43A05 125W Frequency Synthesizer FS Tuning System 1 Icon Type 2 4 Language OSD 3 With CAPTION 4 CH Label S M No TCM012MEF0 DTH 29M2FS Model Items...

Page 2: ...EMOTE CONTROL 4 SERVICE MODE ADJUSTMENT 5 ASSEMBLY ADJUSTMENT 6 SCHEMATIC DIAGRAM 10 ELECTRICAL PARTS LIST 11 EXPLODED VIEW 20 PRINTED CIRCUIT BOARD 21 IC DESCRIPTION 1 CHIP COMPONENTS POSITION 3 TROU...

Page 3: ...UT 7 W 7 W SPEAKER 8 ohm 12W 2EA ANTENNA INPUT IMPEDANCE 75 ohm Unbalanced AUXILIARY INPUT TER MINAL SIDE VIDEO AUDIO R L REAR VIDEO AUDIO R L AUXILIARY OUTPUT TERMINAL REAR VIDEO AUDIO R L INTERMEDIA...

Page 4: ...3 CIRCUIT BLOCK DIAGRAM...

Page 5: ...tton to turn the TV s menu system on and off 6 DISPLAY Use this button to display the channel numbeer and status 7 INPUT Use this button to select the TV s signal source 8 VIDEO Use this button to dis...

Page 6: ...s the volume up or down button to enter in the service mode you wish to adjust 2 How to memorize the adjusted values in the service mode Must press DISPLAY button the state which the screen is display...

Page 7: ...sing internal cross pattern s11 TOP C 2 0 15 Must be set to 2 BOT C 3 0 15 Must be set to 3 H CENTER 60 50Hz 5 0 31 Must be set to 5 V CENTER 60 50Hz 8 0 63 Must be set to 8 V LIN 60 50Hz 0 0 31 Must...

Page 8: ...volume up or down button select internal cross pattern Select service adjustment S6 You can see the OSD as shown in below 4 1 Horizontal Position Adjustment Select H CENTER item adjust H CENTER data...

Page 9: ...adjustment data of RD GD BD and RB GB BB until a good gray scale with normal whites is obtained ALIGNMENT INSTRUCTIONS Press the DISPLAY button to memorize the data 6 DIGITAL PRESET D P ADJUSTMENTS S9...

Page 10: ...ue to obtain normal brightness level Press the DISPLAY button to memorize the data CONTRAST Fixed value 27 TINT Fixed value 38 COLOR Fixed value 27 7 FACTORY OUTGOING MODE S12 FACT If you select the S...

Page 11: ...6 0 7 5 0 5 8 7 5 0 6 592 6 6 21 5 8 7 5 0 7...

Page 12: ...2FS M201 4852075201 MASK FRONT HIPS GY M251A 4852541301 GRILL R PS T0 45 M251B 4852541401 GRILL L PS T0 45 ZZ202 PTSPPWD403 SPEAKER AS DTH 29M2FS P601A 4850704S31 CONNECTOR YH025 04 35098 ULW 800 SP01...

Page 13: ...805 IC REGULATOR KA7805 I801 PTB2SW6110 HEAT SINK ASS Y 1STRF6656 7174300811 LOC PART CODE PART NAME PART DESCRIPTION REMARK I801 1STRF6656 IC POWER STR F6656 I801A 4857026110 HEAT SINK AL EX I801B 71...

Page 14: ...RA 50V Y5V 0 1MF Z 2012 CCS11 HCBK102KCA C CHIP CERA 50V X7R 1000PF K 2012 CCS12 HCFK104ZCA C CHIP CERA 50V Y5V 0 1MF Z 2012 LOC PART CODE PART NAME PART DESCRIPTION REMARK CCS13 HCFK104ZCA C CHIP CER...

Page 15: ...DESCRIPTION REMARK C212 CEXF1C471V C ELECTRO 16V RSS 470MF 10X12 5 TP C311 CEXF1C471V C ELECTRO 16V RSS 470MF 10X12 5 TP C403 CEXF2C101V C ELECTRO 160V RSS 100MF 16X25 TP C404 CEXF2E100V C ELECTRO 250...

Page 16: ...C ELECTRO 50V RSS 1MF 5X11 TP LOC PART CODE PART NAME PART DESCRIPTION REMARK C704 CEXF1H229V C ELECTRO 50V RSS 2 2MF 5X11 TP C705 CEXF1H109V C ELECTRO 50V RSS 1MF 5X11 TP C709 CEXF1C221V C ELECTRO 1...

Page 17: ...RTZ HC 49U 4 433619M 20PP TA ZZ200 PTMPJAD403 PCB MAIN AXIAL AS DTH 29M2FS 10 2TM14006LB TAPE MASKING 3M 232 6 0X2000M LOC PART CODE PART NAME PART DESCRIPTION REMARK 20 2TM10006LB TAPE MASKING 3M 232...

Page 18: ...ER AWG22 1 0 65 TIN COATING LOC PART CODE PART NAME PART DESCRIPTION REMARK J054 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING J055 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING J056 85801065GY WI...

Page 19: ...5 TIN COATING JP165 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING JP180 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING JP501 85801065GY WIRE COPPER AWG22 1 0 65 TIN COATING JS024 85801065GY WIRE CO...

Page 20: ...LM 1 4 62K OHM J R812 RD AZ223J R CARBON FILM 1 6 22K OHM J R813 RD AZ363J R CARBON FILM 1 6 36K OHM J LOC PART CODE PART NAME PART DESCRIPTION REMARK R815 85801065GY WIRE COPPER AWG22 1 0 65 TIN COAT...

Page 21: ...3 2 9 0 6...

Page 22: ...21 PRINTED CIRCUIT BOARD CIRCUIT DIAGRAM 6 SERVO SYSCON CEC CIRCUIT DIAGRAM T DECK...

Page 23: ...DAEWOO ELECTRONICS CO LTD 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 TEL 82 2 360 7806 FAX 82 2 360 7877...

Page 24: ...IN VS HS R G B BL I P60 SDA0 P61 SCLK0 P62 SDA1 P63 SCLK1 P70 INT0 P71 INT1 P72 INT2 TOIN P73 INT3 TOIN P00 P01 P02 P03 P04 P05 P06 P07 SYS1 H ST MONO AV S W1 BLUE BACK AV S W2 SYS2 3 SYS Digital Sens...

Page 25: ...18 FILTER FILTER 19 19 CVBS I501 12 20 20 VS I301 7 21 21 HS I101 28 22 22 R I101 14 23 23 G I101 15 24 24 B I101 16 25 25 BL I101 17 26 26 H T NC 27 27 MSP DATA IS601 8 28 28 MSP CLOCK IS601 7 29 29...

Page 26: ...3 CHIP COMPONENTS POSITION Appendix CM 012M CHASSIS...

Page 27: ...230 75 58 75 270 11 CC450 210 5 60 75 180 12 CC501 254 5 71 270 13 CC502 248 37 5 180 14 CC506 232 75 94 25 180 15 CC507 247 75 85 25 0 16 CC528 282 25 70 180 17 CC574 246 75 43 25 270 18 CC577 248 75...

Page 28: ...1 75 134 5 270 45 CCS03 275 60 0 46 CCS04 266 60 180 47 CCS05 269 25 138 0 48 CCS06 260 25 134 5 270 49 CCS08 82 25 234 5 0 50 CCS10 263 9 134 5 270 51 CCS11 247 12 25 270 52 CCS12 232 137 5 90 53 CCS...

Page 29: ...0 241 75 39 270 82 RC302 139 5 39 25 90 83 RC303 143 25 40 180 84 RC306 148 43 5 270 85 RC501 211 25 84 90 86 RC503 257 25 96 25 0 87 RC512 252 75 37 5 180 88 RC525 211 91 5 0 89 RC526 236 75 58 75 27...

Page 30: ...RC733 208 25 180 75 90 118 RC734 206 25 180 75 90 119 RC735 204 25 180 75 90 120 RC736 200 25 163 270 121 RC737 201 25 170 5 0 122 RC738 215 75 170 5 270 123 RC739 217 75 170 5 270 124 RC740 203 75 2...

Page 31: ...6 180 153 RCP02 227 25 169 5 0 154 RCP03 232 75 58 75 270 155 RCP05 217 200 90 156 RCS06 291 25 143 0 157 RCS07 216 5 24 25 0 158 RCS08 291 25 140 5 0 159 RCS09 212 5 8 25 0 160 RCS11 276 5 157 25 270...

Page 32: ...heck R802 10W 2 2ohms Check Voltage FROM MICOM 42 PWR ON H PWR OFF L Check waveform DRAN OF I801 ST BY PWR ON MIC0M 41 Degaussing SW 5 9 7 VIN GND Drain Source OCP FB 1 2 3 5 4 R803 1W 1K R825 2W 0 1...

Page 33: ...AFT 29 30 SDA SCL I101 SF101 SAW FILTER 5 6 10 8 11 12 Check IF Vcc 5V Check clock data signal Check clock data signal 3 4 Check IF AGC voltage Check RF AGC voltage 46 44 Z501 4 5M Trap Check the wav...

Page 34: ...SF101 SAW FILTER Check Vcc 5V Check IF AGC VOLTAGE e I602 TDA8946J SOUND AMP 12 R IN 6 L IN f Check IF Vcc 5V Check The crystal Check audio signal in 17 speaker Check audio signal out 10 Micom 40 Aud...

Page 35: ...SDA SCL 5V 33V IF OUT 14 AFT 29 30 SDA SCL h AGC IN X 702 32 768KHz 10 ST BY 5V Check the crystal I702 EEPROM 8 ST BY 5V 5 6 SDA SCL Check SDA SCL Check 5V 33V LINE 15 C109 Check RF AGC Voltage Check...

Page 36: ...k the voltage R OUT G OUT B OUT Check R G B signal 43 Video Chroma Deflection Vcc 5V Check the voltage X502 24 C508 C507 V RAMP ALC filter 5V Check the voltage 2 5V I301 LA7848 23 Vertical output 6 Ve...

Page 37: ...T Check the waveform I701 MICOM X702 32 768KHz 10 11 12 ST BY 5V Check the crystal 24 25 SDA SCL I101 16 17 Check clock data signal 20 21 V SYNC IN H SYNC IN Check the signal 60Hz Check the signal 15...

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