Daewoo DTQ-29U4SCV manuale d’uso

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. Service Manual Color Television S/M No : TCN400FNF0 Apr . 2005 CHSSIS MODEL CN-400FN DTQ-29U1SCV DTQ-29U1SSFV DTQ-29U[...]

-1- SAFETY PRECAUTIONS 2 SPECIFICA TIONS 5 CIRCUIT BLOCK DIAGRAM 6 ALIGNMENT INSTRUCTIONS 7 YOUR REMOTE CONTROL 7 SERVICE MODE ADJUSTMENT 8 ASSEMBL Y ADJUSTMENT 10 ELECTRICAL P AR TS LIST 12 DIFFERENT P AR TS LIST 25 SCHEMA TIC DIAGRAM 26 EXPLODE VIEW 28 PRINTED CIRCUIT BOARD 30 IC DESCRIPTION 33 W A VEFORMS 40 TROUBLE SHOOTING GUIDE 42 NO POWER 42[...]

-2- SAFETY PRECAUTIONS CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY. NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFAC- TURER'S APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY VOID THE WARRANTY, BUT MAY LEAD TO YOUR BEING LIABLE FOR ANT RESULT- ING PROPERTY DAMAGE OR USER INJURY. SERVICE WORK SHOULD BE PERFORMED ONLY AFTE[...]

-3- SAFETY PRECAUTIONS CAUTION : Do not attempt to modify this product in any way. Unau- thorized modifications will not only void the warranty, but may lead to your being liable for any resulting property damage or user injury. Service work should be performed only after you are thoroughly familiar with all of the following safety checks and servi[...]

-4- SAFETY PRECAUTIONS SUBJECT : IMPLOSION 1. All direct viewed picture tubes are equipped with an integral implo- sion protection system, but care should be taken to avoid damage during installation. Avoid scratching the tube. If scratched, replace it. 2. Use only recommended factory replacement tubes. SUBJECT : TIPS ON PROPER INSTALLATION 1. Neve[...]

-5- SPECIFICTION Model DTQ-29U4SCV DTQ-29U1SCV , DTQ-29U1SCSV Item CHASSIS CN-401FN CN-400FN TV Standard NTSC-M Power Input AC 120v , 60Hz Power Consumption 107W T uning System Frequency Synthesizer(FS) T uning System T uning Ranges TV VHF(L) : CH2 - CH6 UHF(H) : CH7 - CH13 UHF : CH14 - CH69 CA TV VHF(L) : 5A, A,B,A-5-A-1 CH2-CH6 VHF(H) : C-W+1 1 C[...]

-6- CIRCUIT BLOCK DIAGRAM[...]

-7- ALIGNMENT INSTRUCTION Y our Remote Control(R-48C04) 1. POWER Use this button to turn your TV on or off. 2. MUTE Use to turn the TV’ s sound on and off. 3. W CH V Use these buttons to change channels on your TV , or select items in the menu system. 4. C VOL B Use these buttons to change your TV's vol- ume, to activate selections in the me[...]

-8- ALIGNMENT INSTRUCTION 1. SERVICE MODE ADJUSTMENTS Follow the steps below whenever service adjustment is required. See T able- A and T able- B to determine if service adjustments are required. 1) How to enter the service mode using the user remote control. - T urn the set on. - Direct the remote control to the reception window of TV . - Push but[...]

-9- ALIGNMENT INSTRUCTION Table-B. CN-400FN(DTQ-29U1SCV) EEPROM DATA MODE NAME VAL REMARKS MODE NAME VAL REMARKS S1 HEAT RUN RUN OFF SOC 0 OEC : 650V PWLDAC 0 RCA : 850V CL 10 S5 AGC LEVEL 2 2 CLD 0 IFOFF 37 GAM 1 QSS 1 HCT 0 BPB 1 ACL 0 FMI 1 BPS 1 AGN 0 CHSE 2 BPBS 1 FCO 0 DSG RF:0, AV:1 CBPS 1 Fine Tunning CB 0 FILTBW 0 MUS 0 IDMOD 1 FFI 0 OVMTH[...]

-10- ALIGNMENT INSTRUCTION 2. ASSEMBLY ADJUSTMENTS 1) SCREEN ADJUSTMENT (S2) - Enter the service mode and select service adjustment S2. - You can see the one horizontal line on the screen. - Adjust the Screen Control Volume (located on FBT) so that the horizontal line onscreen may be disappeared. - Press S2 button to exit in the screen adjustment m[...]

-11- ALIGNMENT INSTRUCTION 4) WHITE BALANCE ADJUSTMENT(S8) - Receive a good local channel. - Enter the service mode and select service adjustment S8. - You can see the OSD as shown in below. R-GAIN 32 SRC R-BIAS 32 G-GAIN 32 SRC G-BIAS 32 B-GAIN 40 CVI R-BIAS -8 R-BIAS 32 CVI G-BIAS 10 G-BIAS 32 - Using volume up or volume down, adjust service adju[...]

-12- ELECTRICAL P ARTS LIST NO LOC P AR TS CODE P AR TS NAME P AR TS DESCRIPTION REMARK 1 ZZ100 48B5748C04 TRANSMITTER REMOCON R-48C04 (AAA) 2 ZZ1 10 PT ACPWK009 ACCESSOR Y AS DTQ-29U4SC 3 M821 4858213801 BAG INSTRUCTION L.D.P .E T0.05X250X400 4 ZZ120 PTBCSHK016 COVER BACK AS DTQ-29U1SC 5 M21 1 4852163100 COVER BACK FR HIPS GY 29U1 6 M781 485781763[...]

-13- 41 10 2193102005 SOLDER BAR SN:PB=63:37 S63S-1320 42 JA02 4859105450 JACK PIN BOARD YSC03P-4120-9S 43 M11 1 4851 114003 P ANEL A V ASSY 2326802+5934301 44 M11 1A 717830101 1 SCREW T APPTITE TT2 W AS 3X10 MFZN 45 M684 4856812001 TIE CABLE NYLON66 DA100 46 P201A 4850705N21 CONNECTOR YH025-05+YBNH250+USW=400 47 ZZ200 PTJAJRK142 PCB JACK RADIAL AS[...]

-14- ELECTRICAL P ARTS LIST 86 00001 1LA42072N- IC AUDIO AMP LA42072N 87 0000A 4857028200 HEA T SINK AL EX BK 88 0000B 717430081 1 SCREW T APPTITE TT2 RND 3X8 MFZN 89 I701 1DA12001PQ IC MICOM FLASH TDA12001PQ 90 I702 124LC16B1B IC MEMOR Y 24LC16B1B 91 I801 PTB2SW4401 HEA T SINK ASS`Y 1STR W6735- + 717430081 1 92 00001 1STR W6735- IC POWER STR-W6735[...]

-15- 131 Z801 DSVC471D14 V ARISTOR SVC471D14A (BULK) 132 ZZ200 PTMPJ0K142 PCB MAIN (RHU) AS DTQ-29U1SCV 133 C404 CEXA2D229E C ELECTRO 200V RUL 2.2MF (10X16) TP 134 C410 CMXB2G472J C MYLAR 400V EU 4700PF J (TP) 135 C41 1 CEXF2E100V C ELECTRO 250V RSS 10MF (10X20) TP 136 C412 CCXB3D681K C CERA 2KV B 680PF K (T APPING) 137 C417 CEXF1E102V C ELECTRO 25[...]

-16- ELECTRICAL P ARTS LIST 176 R829 RS02Z309JS R M-OXIDE FILM 2W 3 OHM J SMALL 177 R836 RS02Z109JS R M-OXIDE FILM 2W 1 OHM J SMALL 178 ZZ200 PTMPJRK142 PCB MAIN RADIAL AS DTQ-29U1SCV 179 C101 CCXF1H103Z C CERA 50V F 0.01MF Z (T APPING) 180 C102 CEXF1H100V C ELECTRO 50V RSS 10MF (5X1 1) TP 181 C103 CCXF1H103Z C CERA 50V F 0.01MF Z (T APPING) 182 C1[...]

-17- 221 C605 CMXM2A682J C MYLAR 100V 6800PF J (TP) 222 C606 CMXM2A682J C MYLAR 100V 6800PF J (TP) 223 C607 CMXM2A104J C MYLAR 100V 0.1MF J (TP) 224 C608 CMXM2A104J C MYLAR 100V 0.1MF J (TP) 225 C609 CMXM2A104J C MYLAR 100V 0.1MF J (TP) 226 C610 CMXM2A104J C MYLAR 100V 0.1MF J (TP) 227 C614 CEXF1C470V C ELECTRO 16V RSS 47MF (5X1 1) TP 228 C619 CMXM[...]

-18- ELECTRICAL P ARTS LIST 266 C826 CEXF1E221V C ELECTRO 25V RSS 220MF (8X1 1.5) TP 267 C827 CEXF1C331V C ELECTRO 16V RSS 330MF (8X1 1.5) TP 268 C828 CEXF1H479V C ELECTRO 50V RSS 4.7MF (5X1 1) TP 269 C834 CMXL1J104J C MYLAR 63V MEU 0.1MF J 270 C836 CEXF1E221V C ELECTRO 25V RSS 220MF (8X1 1.5) TP 271 C837 CEXF1H470V C ELECTRO 50V RSS 47MF (6.3X1 1)[...]

-19- 31 1 C205 CBZF1H104Z C CERA SEMI 50V F 0.1MF Z 312 C206 CCZB1H472K C CERA HIKB 50V 4700PF K AXIAL 313 C612 CBZF1H104Z C CERA SEMI 50V F 0.1MF Z 314 C702 CBZF1H104Z C CERA SEMI 50V F 0.1MF Z 315 C703 CBZF1H104Z C CERA SEMI 50V F 0.1MF Z 316 C706 CBZF1H104Z C CERA SEMI 50V F 0.1MF Z 317 C712 CCZB1H561K C CERA 50V B 560PF K 318 C714 CBZF1H104Z C [...]

-20- ELECTRICAL P ARTS LIST 356 DV02 DMTZJ5R6B- DIODE ZENER MTZJ 5.6B 357 DV03 DMTZJ5R6B- DIODE ZENER MTZJ 5.6B 358 DV05 DMTZJ5R6B- DIODE ZENER MTZJ 5.6B 359 DV06 DMTZJ5R6B- DIODE ZENER MTZJ 5.6B 360 L101 5CPZ470K04 COIL PEAKING 47UH 10.5MM K (LAL04TB) 361 L103 5CPZ479K02 COIL PEAKING 4.7UH K (AXIAL 3.5MM) 362 L104 5CPZ479K04 COIL PEAKING 4.7UH K ([...]

-21- 401 R307 RN-AZ2201F R MET AL FILM 1/6 2.2K OHM F 402 R308 RD-4Z514J- R CARBON FILM 1/4 510K OHM J 403 R310 RD-AZ104J- R CARBON FILM 1/6 100K OHM J 404 R31 1 RD-4Z563J- R CARBON FILM 1/4 56K OHM J 405 R312 RN-AZ2201F R MET AL FILM 1/6 2.2K OHM F 406 R313 85801065GY WIRE COPPER A WG22 1/0.65 TIN COA TING 407 R314 85801065GY WIRE COPPER A WG22 1/[...]

-22- ELECTRICAL P ARTS LIST 446 R704 85801065GY WIRE COPPER A WG22 1/0.65 TIN COA TING 447 R705 RD-AZ102J- R CARBON FILM 1/6 1K OHM J 448 R707 RN-AZ5600F R MET AL FILM 1/6 560 OHM F 449 R708 RD-AZ101J- R CARBON FILM 1/6 100 OHM J 450 R709 RD-AZ823J- R CARBON FILM 1/6 82K OHM J 451 R710 RD-AZ563J- R CARBON FILM 1/6 56K OHM J 452 R712 RD-4Z222J- R CA[...]

-23- 491 R808 85801065GY WIRE COPPER A WG22 1/0.65 TIN COA TING 492 R809 RD-AZ102J- R CARBON FILM 1/6 1K OHM J 493 R819 RN-4Z1003F R MET AL FILM 1/4 100K OHM F 494 R820 RN-4Z1502F R MET AL FILM 1/4 15K OHM F 495 R823 RD-AZ152J- R CARBON FILM 1/6 1.5K OHM J 496 R824 RD-AZ333J- R CARBON FILM 1/6 33K OHM J 497 R826 RN-AZ2201F R MET AL FILM 1/6 2.2K OH[...]

-24- ELECTRICAL P ARTS LIST 536 40 2291050301 FLUX SOL VENT IM-1000 537 I901 PTE3SW1 100 HEA T SINK ASS’Y 1TDA6107AJ + 717430081 1 538 00001 1TDA6107AJ IC VIDEO TDA6107AJF 539 0000A 4857031 100 HEA T SINK A1050P-H24 T2.0 540 0000B 717430081 1 SCREW T APPTITE TT2 RND 3X8 MFZN 541 P903 4859238620 CONN W AFER YPW500-02 542 P A902 4850704S04 CONNECTO[...]

-25- DIFFERENT P ARTS LIST 1 RS821 NC 2 CS803 NC 3 CS804 NC 4 R840 RC-2Z565J- R CARBON COMP 1/2 5.6M OHM J 5 C825 CH1BFE222M C CERA AC U/C/V AC400V 2200PF 6 C806 CEYD2G331D C ELECTRO 400V FHS 330MF (30X45) 7 C837 CEXF1H220V C ELECTRO 50V RSS 22MF (5X1 1) TP 8 I801 PTE2SW4401 HEA T SINK ASS`Y 1STR W6756- + 717430081 1 9 R810 RN-AZ5601F R MET AL FILM[...]

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-28- 12 3 4 5 6 7 8 9 10 11 12 13 14 15 16 20 18 19 17 4856716000 SPRING 4854864101 BUTTON POWER 1 SWPA PIE0.5 1 HIPS GY DEVELOPMENT DWG DTQ-29U1 485009KR 01.09.26 4921300100 4852083501 BRAND MARK MASK FRONT 1 1 A1 HIPS GY 4858311110 7172401212 SPEAKER SCREW TAPTITE 2 8 12W 8 OHM SP-58126F TT2 TRS 4X12 MFZN BK 4851948401 7178301011 BUTTON CTRL SERE[...]

-29- 12 3 4 6 7 8 9 10 11 12 13 14 21 19 20 5 16 17 15 18 4856716000 SPRING 4854864601 BUTTON POWER 1 SWPA PIE0.5 1 HIPS GY DEVELOPMENT DWG DTQ-29U5 485009KU 01.09.26 4921300100 4852084001 BRAND MARK MASK FRONT 1 1 A1 HIPS GY 4858311110 7172401212 SPEAKER SCREW TAPTITE 2 8 12W 8 OHM SP-58126F TT2 TRS 4X12 MFZN BK 4854955501 7178301011 BUTTON CH SER[...]

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1. Pin Congiguration -33- IC DESCRIPTION 69 70 81 80 79 78 77 76 75 74 73 72 71 88 87 86 85 84 83 82 65 66 68 67 89 90 25 26 27 28 29 30 31 32 33 34 35 36 37 38 40 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 39 1 2 3 4 21 23 24 22 41 42 43 44 45 HERCULES FULL-STEREO (SSDIP90) 60 64 63 62 61 56 57 59 58 55 54 CVBS3/Y3 A UDIOIN3L//P1.4/P2.4 CVBSO/PIP [...]

-34- IC DESCRIPTION Appendix 2. Pin Description SYMBOL ST ANDARD VERSION F ACE DO WN VERSION DESCRIPTION STEREO + AV STEREO QFP128 FULL-STEREO/ MONO+ A V STEREO SSDIP90 MONO STEREO + AV STEREO QFP128 FULL-STEREO/ MONO+ A V STEREO SSDIP90 MONO VSSP2 1 1 128 90 ground VSSC4 2 1 127 90 ground VDDC4 3 3 126 88 digital supply to SDA Cs (1.8V) VDD A3(3.3[...]

-35- IC DESCRIPTION VIFIN2 25 29 104 62 IF input 2 VSC 26 30 103 61 vertical sawtooth capacitor IREF 27 31 102 60 reference current input GNDIF 28 32 101 59 ground connection f or IF ampli er SIFIN1/D VBIN1 (2) 29 33 100 58 SIF input 1 / D VB input 1 SIFIN2/D VBIN2 (2) 30 34 99 57 SIF input 2 / D VB input 2 A GCOUT 31 35 98 56 tuner AGC output EHT [...]

-36- IC DESCRIPTION Appendix A GC2SIF 46 44/- 83 47/- AGC capacitor second sound IF VP2 47 45 82 46 2 nd supply voltage TV processor (+5 V) IFV O/SV O/CVBSI (2) 48 46 81 45 IF video output / selected CVBS output / CVBS input A UDIOIN4 - - - - audio 4 input A UDIOIN4L 49 47 80 44 audio-4 input (left signal) A UDIOIN4R 50 48 79 43 audio-4 input (righ[...]

-37- IC DESCRIPTION Appendix SVM 65 62 64 29 scan velocity modulation output FBISO/CSY 66 63 63 28 ybac k input/sandcastle output or composite H/V timing output HOUT 67 64 62 27 horizontal output VSScomb 68 70 61 21 ground connection f or comb lter VDDcomb 69 71 60 20 supply voltage f or comb lter (5 V) VIN (R/P R IN2/C X ) 70 - 59 - V -input for Y[...]

-38- IC DESCRIPTION Appendix VDD A1 88 86 41 5 analog supply f or TCG m -Controller and digital supply f or TV -processor (+3.3 V) VREF AD_NEG 89 87 40 4 negative ref erence voltage (0 V) VREF AD_POS 90 88 39 3 positiv e ref erence voltage (3.3 V) VREF AD 91 89 38 2 ref erence voltage f or audio ADCs (3.3/2 V) GND A 92 87 37 4 g round VDD A(1.8V) 9[...]

-39- IC DESCRIPTION Appendix P1.6/SCL 108 7 21 84 por t 1.6 or I 2 C-bus cloc k line P1.7/SD A 109 8 20 83 por t 1.7 or I 2 C-bus data line VDDP(3.3V) 110 9 19 82 supply to peripher y and on-chip voltage regulator (3.3 V) P2.0/TPWM 111 10 18 81 por t 2.0 or T uning PWM output P2.1/PWM0 112 11 17 80 por t 2.1 or PWM0 output P2.2/PWM1 113 47 16 44 po[...]

-40- W A VEFORMS Appendix WAVEFORMS 1).I801 PIN1 2).T402(FBT) HOR.OUT 3).T402(FBT) 190V(D406) 4).I701 PIN73 HOUT 5).I701 PIN76 V+.OUT 6).I701 PIN76 V-.OUT[...]

-41- W A VEFORMS Appendix 7).I701 PIN75 EW OUT 8).I701 PIN46 MONITOR OUT 9).I701 (X-TAL) 10).I301 PIN4 V.OUT 11).I901 PIN R.IN 12).I901 PIN R.OUT[...]

-42- TROUBLESHOOTING GUIDE Appendix 1. NO POWER[...]

-43- TROUBLESHOOTING GUIDE Appendix 2. NO PICTURE (A) (B) Check The Waveform of TU101 IF PIN OK : Go To The Figure (B) NG : Go To The Figure (A) TU101 TUNER Z101 SAW FILTER IF SCL/SD 33V 5V CHECK THE VOLTAGE #7,8 I701 CHECK CLOCK,DATA #18,19 X701 24.576MHz CHECK THE CRYSTAL 5V 3.3V #22,43,45,63,80 #9,16,86,88 CHECK THE VOLTAGE I701 #73 CHECK THE HO[...]

-44- TROUBLESHOOTING GUIDE Appendix 3. NO SOUND (C) (D) Check The Output Signal of I701 #57,58 OK : Go To The Figure (D) NG : Go To The Figure (C) TU101 TUNER Z101 SAW FILTER IF SCL/SD 33V 5V CHECK THE VOLTAGE #7,8 I701 CHECK CLOCK,DATA #18,1 X701 24.576MHz CHECK THE CRYSTAL 5V 3.3V #22,43,45,63,80 #9,16,86,88 I601 LA42072N #7 13V Z101 SAW FILTER S[...]

-45- TROUBLESHOOTING GUIDE Appendix 4. CH DON ’ T MEMORY or SKIP (E) Check The Iutput Signal Conditions OK : Go To The Figure (E) NG : Loss of Signal or Weak Signal TU101 TUNER Z101 SAW FILTER IF SCL/SD 33V 5V CHECK THE VOLTAGE #7,8 I701 CHECK CLOCK,DATA #18,19 X701 24.576MHz CHECK THE CRYSTAL 5V 3.3V Z101 SAW FILTER SIF CHECK THE VOLTAGE #33 #22[...]

-46- TROUBLESHOOTING GUIDE Appendix 5. NO COLOR 6. NO VERTICAL DEFLECTION I701 #18,19 X701 24.576MHz CHECK THE CRYSTAL 5V 3.3V #22,43,45,63,80 #9,16,86,88 CHECK THE VOLTAGE I701 CHECK THE RGB OUT I301 TDA8358J CHECK THE VERTICAL SIGNA L #83,84,85 CHECK THE CRYSTAL X701 24.576MHz CHECK THE CRYSTAL #18,19 VERTICAL #76,77 #1,2 #4 VERTICAL DY CHECK THE[...]

-47- TROUBLESHOOTING GUIDE Appendix 7. REMOTE CONTROL DOES NOT OPERATE I701 #18,19 X701 24.576MHz CHECK THE CRYSTAL 5V 3.3V #22,43,45,63,80 #9,16,86,88 CHECK THE VOLTAGE CHECK THE CRYSTAL IF01 IC PREAMP #2 OUT 3.3V #1 CHECK THE VOLTAGE CHECK THE WAVEFORM[...]

DAEWOO ELECTRONICS CORP . PRINTED DA TE : Apr . 2005 686, AHYEON-DONG, MAPO-GU, SEOUL, KOREA. C.P .O. BOX 8003 SEOUL KOREA[...]