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S/M No : TCN794NEF0-R1
Service Manual
COLOR TELEVISION
CHASSIS : CN-794N
Model : DTQ-29U1SC/SSP
DTQ-29U5SC/SSP
DTQ-29U1SC DTQ-29U1SC
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(http://svc.dwe.co.kr)
DAEWOO ELECTRONICS Corp.
June. 2003
http : //svc.dwe.co.kr
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TABLE OF CONTENTS SAFETY PRECAUTIONS 2 SPECIFICATIONS 5 CIRCUIT BLOCK DIAGRAM 6 ALIGNMENT INSTRUCTIONS 7 YOUR REMOTE CONTROL 7 SERVICE MODE ADJUSTMENT 8 ASSEMBLY ADJUSTMENT 10 SCHEMATIC DIAGRAM 13 ELECTRICAL PARTS LIST 17 DIFFERENT PARTS LIST 36 EXPLODE VIEW 37 PRINTED CIRCUIT BOARD 39 APPENDIX(Appendix is provide only by internet[http://svc.dwe.co.kr]) IC DESCRIPTION 49 WAVEFORMS 55 TROUBLE SHOOTING GUIDE 58 NO POWER 58 NO PICTURE 59 NO SOUND 60 CH DON T STOP 61 NO COLOR 62 NO VERTICAL DEFLECTI
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SAFETY PRECAUTIONS CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY. SUBJECT : X-RADIATION NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFAC- TURER’S APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY VOID 1. BE SURE PROCEDURES AND INSTRUCTIONS TO ALL SERVICE PERSON- THE WARRANTY, BUT MAY LEAD TO YOUR BEING LIABLE FOR ANT RESULT- NEL COVER THE SUBJECT OF X-RADIATION. THE ONLY POTENTIAL ING PROPERTY DAMAGE OR USER INJURY. SOURCE OF X-RAYS IN CURRENT T.V. RECEIVERS IS THE PICTURE TU
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SAFETY PRECAUTIONS CAUTION : Do not attempt to modify this product in any way. Unau- The lightning flash with arrowhead symbol, thorized modifications will not only void the warranty, but may lead to your within an equilateral triangle, is intended to alert being liable for any resulting property damage or user injury. the service personnel to the presence of uninsu- Service work should be performed only after you are thoroughly familiar lated dangerous voltage that may be of suffi- with all of
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SAFETY PRECAUTIONS SUBJECT : IMPLOSION 4. Wall and shelf mounted installations using a commercial mounting kit, must follow the factory approved mounting instructions. A 1. All direct viewed picture tubes are equipped with an integral implo- receiver mounted to a shelf or platform must retain its original sion protection system, but care should be taken to avoid damage feet(or the equivalent thickness in spacers) to provide adequate are during installation. Avoid scratching the tube. If scratche
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SPECIFICTION Model DTQ-29U1/U5SC DTQ-29U1/U5SSP Item CHASSIS CN-794N TV Standard NTSC-M Power Input AC 120v, 60Hz Power Consumption 112W Tuning System Frequency Synthesizer(FS) Tuning System Tuning Ranges TV VHF(L) : CH2 - CH6 UHF(H) : CH7 - CH13 UHF : CH14 - CH69 CATV VHF(L) : 5A, A,B,A-5-A-1 CH2-CH6 VHF(H) : C-W+11 CH7 - CH13 UHF : W+12-W+84 Sound Output 5W + 5W 7W + 7W Speaker 8 ohm 7W x 2EA 8 ohm 15W x 2EA Antenna Input Impedance 75 ohm Unbalanced Auxiliary Input Terminal Side : Video, A
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CIRCUIT BLOCK DIAGRAM -6-
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ALIGNMENT INSTRUCTION Your Remote Control (R-43A07) 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. CH MUTE POWE R Use these buttons to change your TV's volume, to 2 1 activate selections in the menu system. MENU 3 4. VOL Use thesebuttons to change your TV's volume, to 4 4 activate selections in the meny system, or to change VOL VOL 5 audio and video settings. 3 CH 5. MENU 1 2 3 Use this button to turn
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ALIGNMENT INSTRUCTION 1. SERVICE MODE ADJUSTMENTS Follow the steps below whenever service adjustment is required. See Table- A and Table- B to determine if service adjustments are required. 1) How to enter the service mode using the user remote control. • Turn the set on. • Direct the remote control to the reception window of TV. • Push buttons of remote control in sequence as follows. 1 MUTE DISPLAY MUTE • Then, the screen will appear as follows. S2 SCRN S5 SND S6
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ALIGNMENT INSTRUCTION Table-B MODE ADJUSTMENT DATA REMARKS OEC LG RANGE S2 Screen Adjustment S5 SOUND CONTROL FM/AM PRE 65(SSP:75) 0~127 SCART PRE 65(SSP:70) 0~127 MONI VOL 32(SSP:20) 0~127 QUASI CHECK NO YES/NO NO SD NO POWER NO YES/NO S6 V-SIZE 399 379 0~510 V-POSI 1104 1168 240~1712 H-PHASE 41 36 0~255 H-SIZE 1156 1060 4~4092 V-LIN 271 269 0~511 V-S 237 2~512 HBST 20 0~511 TILT 504 8~1016 P-PARA 549 3~1021 H-SYM 984 8~2040 H-COR 984 8~2040 HBSO 6 0~511 S7 BCLTH 185 0~2047 BCLTM 5 0~15 BCLG 5
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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 the volume up or down button to exit in the screen adjustment mode. CAUTION IN THE SCREEN ADJUSTMENT MODE, DONT PRESS OTHER BUTTONS EXCEPT VOLUME UP OR DOWN BUTTON. 2) FOCUS ADJUSTMENT • Turn in a lo
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ALIGNMENT INSTRUCTION 3-3. Vertical Size Adjustment • Select “V.SIZE” item, adjust “V.SIZE” data value to proper vertical size as follows. 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. RD 700 GD 700 BD 700 RB 350 GB 350 BB 350 MOVE ADJUST RECALL : SET • Using volume up or volume down, adjust service adjustment data of RD/GD/BD and RB/GB/BB until a g
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ALIGNMENT INSTRUCTION • Select Subbrightness item, adjust Subbrightness data value to obtain normal brightness level. • Press the DISPLAY button to memorize the data. CONTRAST • Fixed value = 8 TINT • Fixed value = 170 COLOR • Fixed value = 0 6) FACTORY OUTGOING MODE (S12 : FACT) • If you select the S12, then the set becomes factory outgoing status. • You can see the OSD “outgoing OK” -12-
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ELECTRICAL PARTS LIST 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(http://svc.dwe.co.kr) **This BOM is based on DTQ-29U1SC NO LOC PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK 1 ZZ100 48B4343A07 TRANSMITTER REMOCON R-43A07 (AA) 2 ZZ110 PTACPWJ954 ACCESSORY AS DTQ-21U4SC 3 M821 4858213801 BAG INSTRUCTION L.D.P.E
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ELECTRICAL PARTS LIST NO LOC PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK 41 10 2193102005 SOLDER BAR SN:PB=63:47 S63S-1320 42 JA02 4859105450 JACK PIN BOARD YSC03P-4120-9S 43 M112 4851114003 PANEL AV ASSY 2326802+5934301 44 M112A 7178301011 SCREW TAPPTITE TT2 WAS 3X10 MFZN 45 M684 4856812001 TIE CABLE NYLON66 DA100 46 P201A 4850705S04 CONNECTOR YH025-05+YBNH250+ULW=400 47 ZZ200 PTJAJAJ811 PCB JACK AXIAL AS DTQ-29M2 48 A001 4859802917 PCB JACK 79.05X27.3(197X246/14)C1B 49 CC608 CCZB1H102K C CE
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ELECTRICAL PARTS LIST NO LOC PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK 86 I501 1VDP3130Y- IC VDP3130Y 87 I502 1LP295033- IC REGULATOR LP2950 3.3V 88 I601 1MSP3420V3 IC SOUND PROCESSOR MSP3420G-PP-B8-V3 89 I602 PTB2SW8216 HEAT SINK ASS‘Y 1TDA8944J- + 7174301011 90 00001 1TDA8944J- IC SOUND TDA8944J 91 0000A 4857028216 HEAT SINK AL EX 92 0000B 7174301011 SCREW TAPPTITE TT2 RND 3X10 MFZN 93 I701 1DW8638TA1 IC MICOM LC863856A-51S2 94 I703 124LC16B1B IC MEMORY 24LC16B1B 95 I801 PTD2SW8216 HEAT S
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ELECTRICAL PARTS LIST NO LOC PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK 131JC003HRFT000-BAR CHIP1/10 0 OHM 1608 132JC004HRFT000-BAR CHIP1/10 0 OHM 1608 133JC005HRFT000-BAR CHIP1/10 0 OHM 1608 134JC006HRFT000-BAR CHIP1/10 0 OHM 1608 135JC007HRFT000-BAR CHIP1/10 0 OHM 1608 136JC008HRFT000-BAR CHIP1/10 0 OHM 1608 137JC009HRFT000-BAR CHIP1/10 0 OHM 1608 138RC103HRFT102JBAR CHIP1/10 1K OHM J 1608 139RC104HRFT102JBAR CHIP1/10 1K OHM J 1608 140RC202HRFT750JBAR CHIP1/10 75 OHM J 1608 141RC204HRFT103
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ELECTRICAL PARTS LIST NO LOC PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK 176RC527HRFT122JBAR CHIP1/10 1.2K OHM J 1608 177RC532HRFT101JBAR CHIP1/10 100 OHM J 1608 178RC534HRFT103JBAR CHIP1/10 10K OHM J 1608 179RC541HRFT101JBAR CHIP1/10 100 OHM J 1608 180RC542HRFT101JBAR CHIP1/10 100 OHM J 1608 181RC543HRFT101JBAR CHIP1/10 100 OHM J 1608 182RC549HRFT750JBAR CHIP1/10 75 OHM J 1608 183RC551HRFT750JBAR CHIP1/10 75 OHM J 1608 184RC553HRFT101JBAR CHIP1/10 100 OHM J 1608 185RC554HRFT102JBAR CHIP1/10
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ELECTRICAL PARTS LIST NO LOC PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK 221RC736HRFT103JBAR CHIP1/10 10K OHM J 1608 222RC737HRFT103JBAR CHIP1/10 10K OHM J 1608 223RC738HRFT471JBAR CHIP1/10 470 OHM J 1608 224RC742HRFT102JBAR CHIP1/10 1K OHM J 1608 225RC743HRFT102JBAR CHIP1/10 1K OHM J 1608 226RC744HRFT102JBAR CHIP1/10 1K OHM J 1608 227RC745HRFT512JBAR CHIP1/10 5.1K OHM J 1608 228RC746HRFT222JBAR CHIP1/10 2.2K OHM J 1608 229RC747HRFT392JBAR CHIP1/10 3.9K OHM J 1608 230RC748HRFT472JBAR CHIP1/10
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ELECTRICAL PARTS LIST NO LOC PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK 266 C310 CEXF1E222V C ELECTRO 25V RSS 2200MF (16X25) TP 267 C381 CMXM2A224J C MYLAR 100V 0.22MF J 268 C405 CEXA2D229E C ELECTRO 200V RUL 2.2MF (10X16) TP 269 C414 CEXF1V471V C ELECTRO 35V RSS 470MF (10X20) TP 270 C415 CEXF1C102V C ELECTRO 16V RSS 1000MF (10X20) TP 271 C420 CEXF2E220V C ELECTRO 250V RSS 22MF (13X20) TP 272 C628 CEXF1E222V C ELECTRO 25V RSS 2200MF (16X25) TP 273 C630 CMXM2A224J C MYLAR 100V 0.22MF J 274 C6
