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S/M No. : TCN001GMF0
Service Manual
Color Television
CHASSIS : CN-001GM
Model :
DTQ-14D4SSFM
DTQ-20D4SSFM
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.
MPR. 2005
Mar. 2005
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TABLE OF CONTENTS SAFETY PRECAUTIONS 2 PRODUCT SAFTY SERVICING GUIDELINES FOR AUDIO-VIDEO PRODUCS 2 PRODUCT SAFTY SERVICING GUIDELINES FOR COLOR TELEVISION RECEIVERS 3 SPECIFICATIONS 5 BLOCK DIAGRAM 6 ALIGNMENT INSTRUCTIONS 7 SERVICE MODE ADJUSTMENTS 7 ASSEMBLY ADJUSTMENTS 9 PARENTAL CONTROL PASSWORD SETTINGS 12 SCHEMATIC DIAGRAM 13 EXPLODED VIEW 14 PRINTED CIRCUIT BOARD 16 ELECTRICAL PARTS LIST 18 APPENDIX(Appendix is provide only by internet [http://svc,dwe.co.kr]) IC DESCRIPTION 24 TROUBLE SH
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PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO - VIDEO PRODUCTS 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
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PRODUCT SAFETY SERVICING GUIDELINES FOR COLOR TELEVISION RECEIVERS CAUTION : Do not attempt to modify this product in any way. Unau- GRAPHIC SYMBOLS : thorized modifications will not only void the warranty, but may lead to your being liable for any resulting property damage or user injury. The lightning flash with arrowhead symbol, Service work should be performed only after you are thoroughly within an equilateral triangle, is intended to alert familiar with all of the following safety checks
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4. Wall and shelf mounted installations using a commercial mounting SUBJECT : IMPLOSION 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 flow across the bottom, bolts or screws used for fasteners during installation
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SPECIFICATIONS MODEL DTQ -14D4SSFM DTQ -20D4SSFM REMARK ITEM TV STANDARD NTSC - M POWER INPUT FREE POWER CONSUMTION 57 WATTS 62 WATTS TUNING SYSTEM FREQUENCY SYNTHESIZER TUNING RANGES VHF : 2 ~ 13 (12) UHF : 14 ~ 69 (56) CATV : 1 ~ 125 (125) SOUND OUTPUT 5W+5W SPEAKER 8ohm 7.5W ANTENA INPUT 75ohm Unbalanced IMPEDANCE AUXILIARY INPUT Front : Video, Audio TERMINAL Rear : Video, Audio INTERMEDIATE Picture IF Carrier Frequency : 45.75MHz FREQUENCIES Sound IF Carrier Freque
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BLOCK DIAGRAM 6
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ALIGNMENT INSTRUCTIONS 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. ® ® ® • Then, the screen will appear as follows. S2 SCRN S8 W/B • Using the channel up or channel d
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ALIGNMENT INSTRUCTIONS Table-B DATA MODE ADJUSTMENT ITEMS REMARKS INITIAL RANGE S2 Screen Adjustment - - Auto Vco OK OK, NG VIF VCO Adj 33 0~63 Auto Hvco OK OK, NG H Vco adj 04 0~7 S5 Auto RFAGC OK OK, NG RF-DELAY 90 0~125 Align RF AGC threshold AGC Point 3.75 3.25/3.5/3.75/4.0 Select AGC reference voltage VCO CH NO AGC CH NO 22 10 H.Shift(Horizental Shift) 09 0~15 V.Shift(Vertical Shift) 02 0~7 V.Size(Vertical Size) 38 0~63 S6 VBLK Shift 03 0~7 VBLK Shift On NO NO,YES Automatically turn off in
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ALIGNMENT INSTRUCTIONS 2. ASSEMBLY ADJUSTMENTS 1) SCREEN ADJUSTMENT (S2) • Enter the service mode and select service adjustment S2. • You cna 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. NOTE IN THE SCREEN ADJUSTMENT MODE, DONT PRESS OTHER BUTTONS EXCEPT VOLUME UP OR DOWN BUTTON. 2) FOCUS ADJUSTMENT • Turn in a loca
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ALIGNMENT INSTRUCTIONS 4) GEOMETRIC ADJUSTMENTS (S6) • Enter the service mode and select service adjustment S6. • You can see the OSD as shown in below. GEOMETRY H. SHIFT 09 V. SHIFT 02 V. SIZE 38 VBLK SHIFT 03 VBLK SHIFT ON NO NO SD POWER OFF NO MOVE ADJUST RECALL:SET 4-1. Horizontal SHIFT Adjustment • Select H.SHIFT item, adjust H.SHI
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ALIGNMENT INSTRUCTIONS 5) 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 64 BD 64 RB 128 GB 128 BB 128 MOVE ADJUST RECALL : SET ∑ Using volume up or volume down, adjust service 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) ADJUSTMEN
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ALIGNMENT INSTRUCTIONS 3. PARENTAL CONTROL PASSWORD SETTINGS If user forget Parental Control Password as follows. 1) CHANGE THE PASSWORD. • Turn the set on. • Direct the remote control to the reception window of your TV/VCR • Using the MENU buttons, select the Special menu. • Using the the channel up ( ) or down ( ) duttons, select prental control. • Using the volume up ( ), set the password Menu. • Push buttons of remote control in sequence as follows. 2 2 1
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EXPLODED VIEW 14 19 20 14-1 14-2 14 17 18 14-3 16-1 10-1 10 7 16 8 20 4858193401 PAD 1 EPS 20D5 10-1 19 4858211800 BAG PE 1 LDPE T0.03X1300X1000 15 18 4858055200 CARTON BOX 1 DW-3 10 17 4855415800 SPEC PLATE 1 150 ART P/E FILM(C/TV) 16-1 7172401412 SCREW TAPPTITE 5 TT2 TRS 4X14 MFZN BK 16 4852155601 COVER BACK 1 HIPS BK 4856214902 MAIN PCB 1 15 14-3 4856013302 SCREW CRT FIXING AS 2 30X190 BK 14-2 4856013300 SCREW CRT FIXING AS 2 30X80 BK 9-1 14-1 CR T2.0 4856215402 RUBBER 4 11 9 14 CRT 1 13 4851
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EXPLODED VIEW 15 18 17 16 15 14 13 12 11 10 19 SPECIAL SCREW 4856016100 4 SWRM 18 4856214902 WASHER RUBBER 4 CR T2.0 17 4856013302 A48JLL91x50 M16 CRT 1 16 SCREW CRT FIXING AS. 4856013302 4 4 30X190 BK 15 58G0000146 DEGAUSING COIL 1 DC-20SF 14 4855415800 SPEC PLATE 1 150ART P/E FILM 13 7122401411 6 T2S TRS 4X14 MFZN SCREW TAPPING 12 CLOTH BLACK 3 FELT T0.7 L=200 4857817611 11 COVER BACK 4852156201 1 HIPS BK 8 9 10 PTMPMSJ801 MAIN PCB ASSY 1 CN-220C 7128301211 9 SCREW TAPPING T2S TRS 3X12
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ELECTRICAL PARTS LIST CAUTION “ ” is a safety patt, so it must be used the same part. “ ” is a recommendable part for essential stock. LOC PART CODE PART NAME DESCRIPTION REMARK LOC PART CODE PART NAME DESCRIPTION REMARK ZZ100 48B5748C04 TRANSMITTER REMOCON R-48C04 (AAA) 0000A 4857027802 HEAT SINK AL EX ZZ110 PTACPWH527 ACCESSORY AS DTQ-14D4SSF 0000B 7174300811 SCREW TAPPTITE TT2 RND 3X8 MFZN 00010 4850Q00910 BATTERY R03/NN IL701 1TS0P1238W IC PREAMP TS0P1238WI1 00020 4850A02510 ANT ROD S3BW216B
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ELECTRICAL PARTS LIST LOC PART CODE PART NAME DESCRIPTION REMARK LOC PART CODE PART NAME DESCRIPTION REMARK RC701 HRFT123JBA R CHIP 1/10 12K OHM J 1608 E011 4856310300 EYE LET BSR T0.2 (R1.6) RC702 HRFT223JBA R CHIP 1/10 22K OHM J 1608 E012 4856310300 EYE LET BSR T0.2 (R1.6) RC703 HRFT471JBA R CHIP 1/10 470 OHM J 1608 E014 4856310300 EYE LET BSR T0.2 (R1.6) RC704 HRFT471JBA R CHIP 1/10 470 OHM J 1608 E015 4856310300 EYE LET BSR T0.2 (R1.6) RC706 HRFT102JBA R CHIP 1/10 1K OHM J 1608 E016 48563103
