DAEWOO ELECTRONICS DTQ-29G1TS Service Manual Download Page 36

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7-3. NO PICTURE (PASTER OK)

S tep

C heck Point

C ondition

Rem ark

Yes

N o

W aveform is fig.20

N ext Step

C heck/replace TU 01

C heck 33V

N ext Step

G o to N O PO W ER 1

C heck 5V

N ext Step

G o to N O PO W ER 1

C heck 9V

N ext Step

G o to N O PO W ER 1

C heck signal pulse

N ext Step

C heck/replace I701

C heck signal pulse

N ext Step

C heck/replace I701

C heck signal pulse

N ext Step

C heck/replace I701

C heck AG C voltage

C heck/replace I501

0~7.6Vdc

Summary of Contents for DTQ-29G1TS

Page 1: ......

Page 2: ...1 TABLE OF CONTENTS 1 SPECIFICATIONS 2 2 EXTERNAL VIEW 3 3 BLOCK DIAGRAM 6 4 ALIGNMENT INSTRUCTION 7 5 IC DESCRIPTION 15 6 CIRCUIT DESCRIPTION 29 7 TROUBLE SHOOTING GUIDE 32 8 ELECTRICAL PARTS LIST 40...

Page 3: ...erminal INPUT Front Video Audio R L Rear Video Audio R L Front Video Audio R L Rear Video Audio R L Front Video Audio R L Rear Video Audio R L AUX Terminal OUTPUT Front Earphone Stereo Rear Video Audi...

Page 4: ...3 2 EXTERNAL VIEW MODEL NAME DTQ 29G1TS TSP DTQ 25G1TS TSP FRONT VIEW REAR VIEW...

Page 5: ...4 MODEL NAME DTQ 29G3TS TSP FRONT VIEW REAR VIEW...

Page 6: ...isplay the channel number channel label and stereo status Use this button repeatedly to select the main menu or sub menu 11 TV VIDEO Use this button to select main picture source 12 FAVORITE CH Use th...

Page 7: ...6 3 BLOCK DIAGRAM...

Page 8: ...en is displaying each of service menus after all adjustm ents are completed each of all service m enu PCB ADJUSTMENT 1 APC DET PLL Tuning adjustm ent S5 Receive the signal of RF 100 Full color bar 85d...

Page 9: ...m a pattern Adjust the Focus Volume of FBT to obtain the clearest picture 3 Geometric Adjustment S6 Receive the Retm a Pattern Select the S6 of service mode to display item s then press the CH Horizon...

Page 10: ...401 so that 2 2 point of the horizontal screen m ay meet with the R L side Side Pincusion Correction Adjust Receive the Cross Hatch Pattern Adjust RV402 so that the vertical line is perpendicular GEOM...

Page 11: ...TV SET Stick and fix the SENSOR to the center position of CRT Select the S8 of service mode to display item s then press the CH Adjust the R G B BIAS and R B DRIVE value in order that R G B of the HI...

Page 12: ...e 18 Press the RECALL key to store 7 PIP DATA ADJUSTMENT Select the S7 of service mode to display item s then press the CH Adjust PIP sub data color 50 Tint 55 Cont 40 Brig 20 Press the RECALL key to...

Page 13: ...12 8 FORWARDING M ODE S12 Select the S7 of service mode to display item s then press the CH MEM ORY...

Page 14: ...W PLL TUNING 40h 04h Aud_Mute APC DET ADJUST 20h 05h VCD MODE Ver_DC 20h 06h Ver_kill Col_kill Ver_Size 20h 07h R_Bias 40h 08h G_Bias 40h 09h B_BIAS 40h 0Ah BLK_DEF R_Drive 40h 0Bh Drv_Test B_Drive 40...

Page 15: ...N LOFF CCD 0 SC2 SC1 SC0 1101 0000 Control 2 CON2 SAP Stereo TZCM 1 LUM EF2 EF1 EF0 0101 1000 Control 3 CON3 0 0 0 0 L3 L2 L1 L0 0000 1000 Alignment 1 ALR1 0 0 0 A14 A13 A12 A11 A10 0001 0000 Alignmen...

Page 16: ...15 5 IC DESCRIPTION I701 LC864720 32A M com 1 BLOCK DIAGRAM...

Page 17: ...Output Terminal CMOS Push Pull 7 MAIN TUNER ENABLE OUT P16 MAIN TUNER ENABLE CMOS Push Pull 8 SUB TUNER ENABLE OUT P16 SUB TUNER ENABLE CMOS Push Pull 9 Vss GND 10 XT1 32 768 KHz X TAL 11 XT2 OSD osc...

Page 18: ...Terminal Normal High PWM Max 128 7Bit Output When V MUTE Low PWM Min 0 Output Open Drain Output 30 SUB SW OUT PWM 5 SUB PiP TV VIDEO SWITCHING TV MODE High PWM Max 128 7Bit Output VIDEO MODE Low PWM M...

Page 19: ...ut P07 Active High Low state at initial condition RESET Toggle Low High when Power key input is detected Low Power OFF High Power ON Automatically turns to Low when Sleep Timer count down counts 0 Aut...

Page 20: ...19 I501 LA76070A IC VIDEO PROCESSOR 1 BLOCK DIAGRAM...

Page 21: ...lock 11 PIF Input 2 42 Selected Video Output 12 IF AGC 41 Test IT Filter 13 AFT Output 40 C Input 14 Chroma APC 39 Block Level Detector 15 3 58 Crystal 38 Y Input 16 Ramp ALC Filter 37 Sync Input 17 V...

Page 22: ...Y 6bits Horizontal sampling 171pixels Y 28 5pixels B Y R Y Vertical lines 68 51 lines Fram e sub picture on off Built in analog circuits Two 8 bit A D converters main and sub picture signals Two 8 bi...

Page 23: ...22 4 BLOCK DIAGRAM PIN DESCRIPTION...

Page 24: ...to analog power supply 13 Vin s I Composite video signal input sub picture 14 Vrt s O A D Vref sub picture 15 Vrb s O A D Vref sub picture 16 AVss1 s GND Connects to analog GND 17 RESET I Power on res...

Page 25: ...or sub picture 38 ADJ_Csub I D A adjust for Chroma signal sub picture 39 Yout_sub O D A output signal Luma signal for sub picture 40 ADJ_Ysub I D A adjust for luma signal sub picture 41 Y_ PIPin I PIP...

Page 26: ...25 5 BLOCK DIAGRAM 6 PIP TV SYSTEM BLOCK DIAGRAM...

Page 27: ...26 I601 TDA9852 CIC AUDIO PROCESSOR 1 BLOCK DIAGRAM PIN DESCRIPTIO N...

Page 28: ...utput line control CTW 11 capacitor timing wideband for dbx CTS 12 capacitor timing spectral for dbx CW 13 capacitor wideband for dbx CS 14 capacitor spectral for dbx VEO 15 variable emphasis output f...

Page 29: ...SAP LOR 33 output line control right channel SOR 34 output selector right channel AVR 35 input automatic volume control right channel LIR 36 input line control right channel CPS2 37 capacitor 2 pseudo...

Page 30: ...tage drop at R817 R818 1W 0 51 of 134V line In case that the overload occurs at the rear of 134V line the increase of the voltage drop at R817 R818 bring down the base voltage of the Q801 so as to dri...

Page 31: ...EO SW OUT VIDEO1 HIGH VIDEO2 LOW 30 PWM5 SUB PIP SW OUT TV HIGH VIDEO LOW MODE PRESENT MODE MAIN SW OUT 28 PWM3 VIDEO SW OUT 29 PWM4 SUB SW OUT 30 PWM5 REMARK MAIN TV HIGH HIGH HIGH PIP TV MAIN TV HIG...

Page 32: ...for downsizing and standardization of power supplies 1 POW ER IC STR S5708 BLOCK DIAGRAM 2 PIN DESCRIPTION PIN NO SYMBOL NAME FUNCTION 1 C COLLECTOR POWER TR COLLECTOR 2 GND GROUND GROUND POWER TR EM...

Page 33: ...32 7 TROUBLE SHOOTING GUIDE 7 1 NO POWER...

Page 34: ...06 ID01 Check tuner 8 Check voltage of I501 25 next step Check replace Q801 D501 0 6V under 9 Check voltage 134Vdc next step Replace R817 R818 10 Check base voltage of Q407 next step Replace Q407 On h...

Page 35: ...k replace I701 I702 3 Check X701 Next Step Replace X701 4 Waveform is fig 18 Next Step Go to Deflection T401 H Sync 5 Waveform is fig 19 Next Step Go to Deflection I301 V_sync 6 Check IR waveform Next...

Page 36: ...01 2 Check 33V Next Step Go to NO POWER 1 3 Check 5V Next Step Go to NO POWER 1 4 Check 9V Next Step Go to NO POWER 1 5 Check signal pulse Next Step Check replace I701 6 Check signal pulse Next Step C...

Page 37: ...11 2Vp p Next Step Replace Z502 7 Waveform is fig 11 1Vp p Next Step Replace I501 W hen QC501 is O K 8 Waveform is fig 11 1Vp p Next Step Replace I502 9 Waveform is fig 13 1Vp p Next Step Replace COMB...

Page 38: ...O POWER 4 Check waveform Next Step Check replace Q401 D401 D402 5 Check voltage 143Vdc Next Step Go to NO POWER 6 Check waveform Next Step Check replace I501 7 Check waveform Next Step Replace I301 8...

Page 39: ...c is 8 3V Next Step Go to NO POWER 6 X601 is operate Next Step Replace X601 7 Check SCL SDA Next Step Go to NO POWER2 8 9 Input level is 1 4Vp p Next Step Go to Sound Adjustment 10 11 Monitor out leve...

Page 40: ...is fig 1 2 3Vp p Next Step Check 9V Replace I503 7 Check voltage 3 3Vdc Next Step Go to NO POWER 8 Check SDA SCL ACK fig4 5 6 Next Step Check I701 9 Frequency is 14 31818 Next Step Replace XP01 10 Wav...

Page 41: ...M A0002 4859203530 PIN TERMINAL YPT 018 L A001 4859810491 PCB MAIN 330X246 S1L C101 CEXF1H109V C ELECTRO 50V RSS 1MF 5X11 TP C104 CEXF1E101V C ELECTRO 25V RSS 100MF 6 3X11 T C105 CEXF1E101V C ELECTRO...

Page 42: ...SS 47MF 6 3X11 TP C415 CEXF1C102V C ELECTRO 16V RSS 1000MF 10X20 T C417 CMXB1H104J C MYLAR 50V EU 0 1MF J TP C418 CMXB1H104J C MYLAR 50V EU 0 1MF J TP C419 CMXE2D683J C MYLAR 200V PU 0 068MF J TP C420...

Page 43: ...ECTRO 50V RSS 22MF 5X11 TP C601 CMXL1J154J C MYLAR 63V MEU 0 15MF J C605 CEXF1E101V C ELECTRO 25V RSS 100MF 6 3X11 T C611 CMXB1H473J C MYLAR 50V 0 047MF J TP C613 CMXB1H104J C MYLAR 50V EU 0 1MF J TP...

Page 44: ...1000PF K TAPPING C808 CBXB3D471K C CERA 2KV BL N 470PF K T C809 CEYN2D221T C ELECTRO 200V FWS 220MF 22X30 C810 CEXF2C101V C ELECTRO 160V RSS 100MF 16X25 T C811 CCXB3A471K C CERA 1KV B 470PF K T C812...

Page 45: ...P CERA 50V X7R 0 01MF K 2012 CC109 HCBK103KCA C CHIP CERA 50V X7R 0 01MF K 2012 CC110 HCBK103KCA C CHIP CERA 50V X7R 0 01MF K 2012 CC302 HCTBF479MB C CHIP TANTAL 16V 4 7MF M 3528 CC401 HCQK101JCA C CH...

Page 46: ...16V 10MF M 3528 CC608 HCTBF100MB C CHIP TANTAL 16V 10MF M 3528 CC609 HCTAF109MB C CHIP TANTAL 16V 1MF M 3216 CC610 HCTAF109MB C CHIP TANTAL 16V 1MF M 3216 CC612 HCTBF100MB C CHIP TANTAL 16V 10MF M 352...

Page 47: ...04 HCBK103KCA C CHIP CERA 50V X7R 0 01MF K 2012 CCP06 HCBK103KCA C CHIP CERA 50V X7R 0 01MF K 2012 CCP08 HCBK103KCA C CHIP CERA 50V X7R 0 01MF K 2012 CCP13 HCFK104ZCA C CHIP CERA 50V Y5V 0 1MF Z 2012...

Page 48: ...H100V C ELECTRO 50V RSS 10MF 5X11 TP CP42 CEXF1H100V C ELECTRO 50V RSS 10MF 5X11 TP CRT1 4859618760 CRT A68KTB140X010 P38 CV01 CEXF1H100V C ELECTRO 50V RSS 10MF 5X11 TP CV02 CEXF1E470V C ELECTRO 25V R...

Page 49: ...1N4148 TAPPING D804 DRGP15J DIODE RGP15J D805 DRGP15J DIODE RGP15J D806 DRGP30J DIODE RGP30J D807 DRGP15J DIODE RGP15J D808 DRGP30J DIODE RGP30J D810 D1N4148 DIODE 1N4148 TAPPING D812 D1N4148 DIODE 1...

Page 50: ...02 1TDA7057Q IC AUDIO AMP TDA7057Q I602A 4857027906 HEAT SINK AL EX BK I602B 7174301011 SCREW TAPPTITE TT2 RND 3X10 MFZN I701 1LC8645H12 IC MICOM LC864732V 5H12 I702 1CAT24C08P IC CAT24C08P I801 PTB2S...

Page 51: ...XIAL 7MM L508 5CPZ180K02 COIL PEAKING 18UH K AXIAL 3 5MM L601 5CPZ560K02 COIL PEAKING 56UH K AXIAL 3 5MM L602 5MC0000100 COIL BEAD HC 3550 L603 5MC0000100 COIL BEAD HC 3550 L604 58C9430599 COIL CHOKE...

Page 52: ...CONN AS YH025 03 YST025 ULW 400 P902 4850705S04 CONN AS YH025 05 YST025 ULW 400 P903 4859238620 CONN WAFER YPW500 02 P909 4850701S07 CONN AS YFH800 01 YPT018 ULW 500 PA901 485923162S CONN WAFER YW025...

Page 53: ...C2412KB TR CHIP 2SC2412K T146 BR QC704 T2SC2412KB TR CHIP 2SC2412K T146 BR QC705 T2SC2412KB TR CHIP 2SC2412K T146 BR QC805 T2SC2412KB TR CHIP 2SC2412K T146 BR QC809 T2SC2412KB TR CHIP 2SC2412K T146 BR...

Page 54: ...OXIDE FILM 2W 4 3 OHM J SMALL R410 RD 4Z100J R CARBON FILM 1 4 10 OHM J R411 RD 4Z684J R CARBON FILM 1 4 680K OHM J R414 RF01Y478J R FUSIBLE 1W 0 47 OHM J R415 RS02Z103JS R M OXIDE FILM 2W 10K OHM J...

Page 55: ...ILM 2W 5 6 OHM J SMALL R843 RD 4Z102J R CARBON FILM 1 4 1K OHM J R844 RC 2Z225J R CARBON COMP 1 2 2 2M OHM J R901 RD 2Z202J R CARBON FILM 1 2 2K OHM J R902 RS02Z123JS R M OXIDE FILM 2W 12K 0HM J SMALL...

Page 56: ...HM J 2012 RC416 HRFT203JCA R CHIP 1 10 20K OHM J 2012 RC417 HRFT822JCA R CHIP 1 10 8 2K OHM J 2012 RC420 HRFT562JCA R CHIP 1 10 5 6K OHM J 2012 RC422 HRFT103JCA R CHIP 1 10 10K OHM J 2012 RC423 HRFT24...

Page 57: ...150 OHM J 2012 RC520 HRFT681JCA R CHIP 1 10 680 OHM J 2012 RC521 HRFT331JCA R CHIP 1 10 330 OHM J 2012 RC522 HRFT102JCA R CHIP 1 10 1K OHM J 2012 RC523 HRFT102JCA R CHIP 1 10 1K OHM J 2012 RC524 HRFT1...

Page 58: ...OHM J 2012 RC561 HRFT472JCA R CHIP 1 10 4 7K OHM J 2012 RC562 HRFT472JCA R CHIP 1 10 4 7K OHM J 2012 RC563 HRFT102JCA R CHIP 1 10 1K OHM J 2012 RC564 HRFT472JCA R CHIP 1 10 4 7K OHM J 2012 RC565 HRFT...

Page 59: ...K OHM J 2012 RC703 HRFT101JCA R CHIP 1 10 100 OHM J 2012 RC704 HRFT101JCA R CHIP 1 10 100 OHM J 2012 RC705 HRFT102JCA R CHIP 1 10 1K OHM J 2012 RC706 HRFT102JCA R CHIP 1 10 1K OHM J 2012 RC707 HRFT102...

Page 60: ...HM J 2012 RC736 HRFT910JCA R CHIP 1 10 91 OHM J 2012 RC737 HRFT102JCA R CHIP 1 10 1K OHM J 2012 RC738 HRFT910JCA R CHIP 1 10 91 OHM J 2012 RC746 HRFT102JCA R CHIP 1 10 1K OHM J 2012 RC747 HRFT103JCA R...

Page 61: ...OHM J 2012 RC916 HRFT471JCA R CHIP 1 10 470 OHM J 2012 RC917 HRFT131JCA R CHIP 1 10 130 OHM J 2012 RC918 HRFT121JCA R CHIP 1 10 120 OHM J 2012 RC919 HRFT561JCA R CHIP 1 10 560 OHM J 2012 RC920 HRFT102...

Page 62: ...10K OHM J 2012 RCP15 HRFT202JCA R CHIP 1 10 2K OHM J 2012 RCP16 HRFT102JCA R CHIP 1 10 1K OHM J 2012 RCP17 HRFT153JCA R CHIP 1 10 15K OHM J 2012 RCP18 HRFT202JCA R CHIP 1 10 2K OHM J 2012 RCP19 HRFT2...

Page 63: ...7910A SW02 5S50101090 SW TACT SKHV17910A SW03 5S50101090 SW TACT SKHV17910A SW04 5S50101090 SW TACT SKHV17910A SW05 5S50101090 SW TACT SKHV17910A SW06 5S50101035 SW TACT KPT 1112 1C 1P SWC10 HRFT000 C...

Page 64: ...CSB503F58 X701 5XYR03276C CRYSTAL QUARTZ C 001R 32 768000KHZ 20PP XP01 5XJ14R318E CRYSTAL QUARTZ HC 49 U S 14 318MHZ 30PP Y801 5SC0101325 SW RELAY HR CR7 DC12V Y802 5SC0101325 SW RELAY HR CR7 DC12V Z...

Page 65: ...CORD POWER AS KJ 10 SPT 2YPT018 2 4859900910 CORD POWER AS KKP 419C YPT 018 21 4 R805 PS02Z183JS R M OXIDE FILM 2W 18K OHM J SMALL RS02Z473JS R M OXIDE FILM 2W 47K OHM J SMALL 5 R844 RC 2Z225J R CARBO...

Page 66: ...013300 4853530901 4857015801 4857026500 4856215402 7122401411 4856015820 4857817610 4857817630 4852150401 15 16 17 18 12 13 14 24 23 22 21 19 20 HEAT SINK C HOLDER LED HEAT SINK HEAT SINK WASHER RUBBE...

Page 67: ...300 4853530901 4857015801 4857026500 4857817630 14 13 12 18 17 16 15 20 19 21 22 23 24 HEAT SINK HEAT SINK HEAT SINK HOLDER LED HEAT SINK HEAT SINK MAIN PCB AL EX ANODIZE 1 1 2 AL EX BK AL EX A1050P H...

Page 68: ......

Page 69: ...CS CO LTD 686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA TELEX DWELEC K28177 8 CABLE DAEWOOELEC E mail G7F00E web dwe co kr FAX 02 360 8184 TEL 02 360 8178 8182 PRINTED DATE APR 1998 S...

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