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Service Manual
Color Television
CHASSIS : CN-001A
Model :
DTQ-14V1FC/20V1FC
DTQ-14V5FC/20V4FC
DTQ-14V1FS/20V1FS
DTQ-14V5FS/20V4FS
DTQ-14V3FS/20V3FS
DTQ-14U1FS/20U1FS
DTQ-14V1FSP/20V1FSP
DTQ-14V5FSP/20V4FSP
DTQ-14U1FSP/20U1FSP
DTQ-14V1FC
DTQ-14V3FC
DTQ-14V5FC
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 CO., LTD
http : //svc.dwe.co.kr
S/M No. : CN001A-020
U.S.A
Canada
Middle America
(AC 110V)
Mexico,Chile,
Peru (AC 220V)
DTQ-20V4FC
DTQ-14U1FS
Aug. 1999
POWER
MUTE
CH
VOL
VOL
CH
DISPLAY
INPUT
VIDEO
1
2
3
4
5
6
7
8
9
SLEEP
0
PREVIOUS
R-38T01
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Table of Contents
Related Manuals for Daewoo DTQ-14U1FS/20U1FS
Summary of Contents for Daewoo DTQ-14U1FS/20U1FS
- Page 1 : 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 CO., LTD http : //svc.dwe.co.kr S/M No. : CN001A-020 U.S.A...
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Page 2: Table Of Contents
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 ... -
Page 3: Safety Precautions
PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO - VIDEO PRODUCTS 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. -
Page 4: Product Safty Servicing Guidelines For Color Television Receivers
PRODUCT SAFETY SERVICING GUIDELINES FOR COLOR TELEVISION RECEIVERS 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 servicing guide- lines. - Page 5 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 2. Use only recommended factory replacement tubes. SUBJECT : TIPS ON PROPER INSTALLATION 1.
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Page 6: Specifications
SPECIFICATIONS DTQ-14/20V1FC MODEL DTQ-14V5/20V4FC DTQ-14/20V1FS ITEMS DTQ-14V5/20V4FS DTQ-14/20V3FS TV STANDARD POWER INPUT POWER CONSUMPTION TUNING SYSTEM TUNING RANGES SOUND OUTPUT 1.3 W SPEAKER ANTENNA INPUT IMPEDANCE AUXILIARY INPUT TERMINAL INTERMEDIATE FREQUENCIES REMOTE CONTROL SPECIAL FUNCTIONS DTQ-14/20U1FS DTQ-14/20U1FSP NTSC-M AC 120V 60 Hz 14 = 55W 20 = 65W Frequency Synthesizer ( FS ) Tuning System... -
Page 7: Block Diagram
BLOCK DIAGRAM... -
Page 8: Alignment Instructions
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. -
Page 9: Assembly Adjustments
ALIGNMENT INSTRUCTIONS Table-B MODE ADJUSTMENT ITEMS Screen Adjustment Auto RF AGC Video Level (VIDEOL) RF AGC Delay (RFAGCD) FM Level (FM.LEV) AGC Point A/D VALUE Horizontal Phase(H.PHASE) Vertical Position (V.POSI) Vertical Size (V.SIZE) NO SD POWER OFF Vertical S-Correction (V SC) Vertical Linearity (V LIN) Internal Black Internal 100% White... - Page 10 2) FOCUS ADJUSTMENT Turn in a local station and adjust the Focus Control knob (located on FBT) for best picture details at high light condition. 3) RF AGC DELAY ADJUSTMENT (S5) Receive a good local channel. Enter the service mode and select service adjustment S5. You can see the OSD as shown in below.
- Page 11 ALIGNMENT INSTRUCTIONS 4-3. Vertical Size Adjustment Select “ V.SIZE” item, adjust “ V.SIZE” data value to proper vertical size as follows. 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. ¡...
- Page 12 Select Subbrightness item, adjust Subbrightness data value to obtain normal brightness level. Press the DISPLAY button to memorize the data. CONTRAST Fixed value = 10 TINT Fixed value = 27 COLOR Fixed value = 15 7) FACTORY OUTGOING MODE (S12 : FACT) If you select the S12, then the set becomes factory outgoing status.
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Page 13: Ic Description
IC DESCRIPTION U-COM(I701) TV ONLY (H) CABLE (H) ST / MONO BLUE BACK AUTO TINT KEY IN AFT IN AGC IN SPARE A/D P13/PWM1 P14/PWM2 P15/PWM3 P17/PWM P73/INT3/TOIN P72/INT2/TOIN P84/AN4 P63/SCLK1 P85/AN5 P86/AN6 P61/SCLK0 P87/AN7 FILT CVIN - X'TAL : 32.768 KHz POWER ON(H) AUDIO MUTE(H) AKB WHITE... - Page 14 1. Abstract. This specification is 1-Tuner Mono Model for North/South America, CCD 1-Chip MICOM LC863228A. It is developing software specification for tuning only NTSC and 3 system TV F/S. * 3 System : NTSC-M, PAL-M, PAL-N. 2. H/W Outline. 1) ROM : 28,672 x 8bits.tsc : 15,872 x 8 bits for CGROM.
- Page 15 IC DESCRIPTION 3) On Screen Displays function is interior designed. 4) Package. : 42 PIN SDIP. 5) Tuner (Pre-scaler.) C Bus. /PLL IC : TAU 6014-S(SIEMENS). 6) Remocon. : The IC of Transmission (MITSUBISHI M50560) 7) E PROM. : 24C08(I 8) 6-Local Key.
- Page 16 - Auto Power On Function.(Power Restore function in the Special Menu) - Heat Run Function. --- OSD White Back-Ground - Sleep Timer. - Wake Up Time Function. - Off Time Function. - Remote Reception & Control. - Auto Tint. - Power Restore. - Input(TV/Line) Controlled function.
- Page 17 IC DESCRIPTION 6. Pin Description...
- Page 18 IC DESCRIPTION...
- Page 19 IC DESCRIPTION...
- Page 20 I101 DCT814(LA76814) : IC VIDEO PROCESSOR AUDIO OUT FM OUTPUT PIF AGC RF AGC OUT PIF INPUT1 PIF INPUT2 IF GND IF VCC FM FILTER AFT OUTPUT BUS DATA BUS CLOCK ABL IN OSD RED INPUT OSD GREEN INPUT OSD BLUE INPUT FAST BLANKING INPUT RGB VCC RED OUTPUT...
- Page 21 IC DESCRIPTION I801 POWER CONTROL MODULE PIN NO DESCRIPTION GATE DRIVE1 SOURCE GND1 GATE GATE DRIVE2 DPM 001 TI PIN NO DESCRIPTION +12V INPUT POWER CONTROL GND2 +133V INPUT...
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Page 22: Trouble Shooting Charts
TROUBLESHOOTING GUIDE 1. NO POWER FROM FBT 10V Check F801(125V 4A) F801 PCW1 C804 Check waveform R809 L802 R802 C805 Q801 R803 R804 ST-BY PW ON <DRAIN OF Q801> R416 RLY01 R801 L801 T801 D807 133V C814 D808 C815 D813 C812 R818 D812... -
Page 23: No Picture
TROUBLESHOOTING GUIDE 2. NO PICTURE Check the waveform of I101 #46 Check the voltages U102 TUNER T-DATA T-CLOCK #29 #30 I701 MICOM #11 #12 XC701 32.768KHz Check the crystal Check composite video Z501 C525 Check RBG Vcc (9V) Check RBG signal output Check ABL current SF101... -
Page 24: No Sound
3. NO SOUND Check audio output signal of I101 #1 U102 TUNER T-DATA T-CLOCK #29 #30 I701 MICOM #11 #12 XC701 32.768KHz ST-BY Check the crystal Check Vcc of the sound AMP R601 SOUND C602 Audio in C603 Check audio signal in SF101 IF OUT SAW FILTER... -
Page 25: Ch Don't Stop
TROUBLESHOOTING GUIDE 4. CH DON’ T STOP Check the input signal conditions TUNER T-DATA T-CLOCK #29 #30 I701 MICOM #11 #12 XC701 32.768KHz Check the crystal Check 5V/33V LINE U102 IF OUT AGC IN C103 Check RF AGC Voltage Check AFT window Voltage 2.1V~2.5V ST-BY... -
Page 26: No Color
5. NO COLOR Check C.V.S waveform composite video in Check the voltage RGB Vcc (9V) R OUT G OUT B OUT Check R/G/B signal 6. NO VERTICAL DEFLECTION I101 C507 C508 V RAMP ALC filter Check Vertical output the voltage ( 2.5V ) vertical output signal I101... -
Page 27: No On-Screen Disply
ROUBLESHOOTING GUIDE 7. NO ON-SCREEN DISPLAY Check the signal (60Hz) V.SYNC IN H.SYNC IN Check the signal (15,734Hz) 32.768KHz 8. REMOTE CONTROL DOES NOT OPERATE XC701 32.768KHz Check I701 clock/data signal MICOM OSD R OSD G OSD B BLANK #11 #12 XC701 ST-BY OSD R/G/B/BLANK signal... -
Page 28: Electrical Parts List
ELECTRICAL PARTS LIST Caution: In this Service 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) “... - Page 29 ELECTRICAL PARTS LIST PART CODE PART NAME C516 CEXF1H229V C ELECTRO C517 CMXB1H473J C MYLAR C518 CEXF1H478V C ELECTRO C519 CEXF1H478V C ELECTRO C520 CEXF1H109V C ELECTRO C524 CEXF1H100V C ELECTRO C525 CEXF1H109V C ELECTRO C601 CMXB1H103J C MYLAR C602 CEXF1C102V C ELECTRO C603 CEXF1H108V C ELECTRO...
- Page 30 PART CODE PART NAME D502 D1N4148--- DIODE D503 DUZ9R1BM-- DIODE ZENER D504 D1N4148--- DIODE D505 DUZ9R1BM-- DIODE ZENER D701 D1N4148--- DIODE D703 DLH2PR---- LED BLOCK D704 DUZ3R9B--- DIODE ZENER D757 D1N4148--- DIODE D801 DD2SB80--- DIODE BRIDGE D807 DRGP15J--- DIODE D808 DRGP15J--- DIODE D812 DUZ5R6BM-- DIODE ZENER...
- Page 31 ELECTRICAL PARTS LIST PART CODE PART NAME R412 RN01B369JS R METAL FILM R413 RN01B229JS R METAL FILM R414 RN01B229JS R METAL FILM R416 RD-2Z121J- R CARBON FILM R418 RN02B150JS R METAL FILM R420 RN02B620JS R METAL FILM R425 RD-4Z752J- R CARBON FILM R451 RD-4Z153J- R CARBON FILM R452 RD-4Z113J-...
- Page 32 PART CODE PART NAME RC566 HRFT123JCA R CHIP RC567 HRFT103JCA R CHIP RC568 HRFT472FCA R CHIP RC569 HRFT152JCA R CHIP RC570 HRFT103JCA R CHIP RC571 HRFT272JCA R CHIP RC572 HRFT223JCA R CHIP RC573 HRFT102JCA R CHIP RC655 HRFT182JCA R CHIP RC656 HRFT471JCA R CHIP RC703 HRFT101JCA...
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Page 33: Exploded View
EXPLODED VIEW 1. DTQ-14V1FS... - Page 34 EXPLODED VIEW 2. DTQ-14V3FS...
- Page 35 EXPLODED VIEW 3. DTQ-14V5FC / FS...
- Page 36 EXPLODED VIEW 4. DTQ-14U1FS...
- Page 37 EXPLODED VIEW 5. DTQ-20V1FS...
- Page 38 EXPLODED VIEW 6. DTQ-20V3FS...
- Page 39 EXPLODED VIEW 7. DTQ-20V4FS...
- Page 40 EXPLODED VIEW 8. DTQ-20U1FS...
- Page 41 -1 - Mon Aug 09 09:48:04 1999...
- Page 42 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 : G7F00E@web.dwe.co.kr TEL : 82-2-360-8179~8180/8187 FAX : 82-2-360-8184...