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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-14V6NB/14V6NP
DTQ-14V6FCB/14V6FCP
DTQ-14V6FBB/14V6FPP
DTQ-14V1FSP/20V1FSP
DTQ-14V5FSP/20V4FSP
DTQ-14U1FSP/20U1FSP
DTQ-14V6NBP/14V6NPP
DTQ-14V1FC
DTQ-14V5FC
DAEWOO ELECTRONICS CO., LTD
http : //svc.dwe.co.kr
S/M No. : CN001A-020R1
(Revision-1)
U.S.A
Canada
America
(AC 110V)
Mexico,Chile,
Peru (AC 220V)
DTQ-20V4FC
DTQ-14V3FC
DTQ-14U1FS
Sep. 2000
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Table of Contents
Troubleshooting
Related Manuals for Daewoo DTQ-14V1FC
Summary of Contents for Daewoo DTQ-14V1FC
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Page 1: Service Manual
CHASSIS : CN-001A Model : DTQ-14V1FC/20V1FC U.S.A DTQ-14V5FC/20V4FC Canada DTQ-14V1FS/20V1FS DTQ-14V5FS/20V4FS America DTQ-14V3FS/20V3FS (AC 110V) DTQ-14U1FS/20U1FS DTQ-14V6NB/14V6NP DTQ-14V6FCB/14V6FCP DTQ-14V6FBB/14V6FPP DTQ-14V1FSP/20V1FSP DTQ-14V5FSP/20V4FSP Mexico,Chile, DTQ-14U1FSP/20U1FSP Peru (AC 220V) DTQ-14V6NBP/14V6NPP DTQ-20V4FC DTQ-14V1FC DTQ-14V3FC DTQ-14V5FC DTQ-14U1FS DAEWOO ELECTRONICS CO., LTD Sep. 2000 http : //svc.dwe.co.kr... -
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 SUBJECT : X-RADIATION : 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 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. -
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- 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... - Page 5 SUBJECT : IMPLOSION 4. Wall and shelf mounted installations using a commercial mounting kit, must follow the factory approved mounting instructions. A receiver mounted to a shelf or platform must retain its original 1. All direct viewed picture tubes are equipped with an integral implo- feet(or the equivalent thickness in spacers) to provide adequate sion protection system, but care should be taken to avoid damage are flow across the bottom, bolts or screws used for fasteners...
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Page 6: Specifications
SPECIFICATIONS DTQ-14/20V1FC MODEL DTQ-14V5/20V4FC DTQ-14/20V1FSP DTQ-14/20V1FS DTQ-14/20U1FS DTQ-14/20U1FSP REMARKS DTQ-14V5/20V4FSP ITEMS DTQ-14V5/20V4FS DTQ-14/20V3FS TV STANDARD NTSC-M POWER INPUT AC 120V 60 Hz AC 220V 50/60 Hz 14 = 55W POWER CONSUMPTION 20 = 65W TUNING SYSTEM Frequency Synthesizer ( FS ) Tuning System VHF : 2 ~ 13 (12) TUNING RANGES UHF : 14 ~ 69 (56) -
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. •... -
Page 9: Assembly Adjustments
ALIGNMENT INSTRUCTIONS Table-B DATA MODE ADJUSTMENT ITEMS REMARKS INITIAL RANGE Screen Adjustment Auto RF AGC Video Level (VIDEOL) 0 ~ 7 Must be set to 7 RF AGC Delay (RFAGCD) 0 ~ 63 Align RF AGC threshold FM Level (FM.LEV) 0 ~ 31 Must be set to 20 AGC Point... - Page 10 ALIGNMENT INSTRUCTIONS 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. •...
- 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. •...
- Page 12 ALIGNMENT INSTRUCTIONS • 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) •...
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Page 13: Ic Description
IC DESCRIPTION U-COM(I701) TV ONLY (H) POWER ON(H) CABLE (H) ST / MONO AUDIO MUTE(H) P13/PWM1 AKB WHITE BLUE BACK P14/PWM2 SOUND RESET H.OUT P15/PWM3 ON(L)/OFF(H) AUTO TINT POWER ON P17/PWM ST-BY(H) P73/INT3/TOIN REMOCON IN P72/INT2/TOIN P71/INT1 P70/INT0 KEY IN P84/AN4 P63/SCLK1 T-CLOCK... - Page 14 IC DESCRIPTION 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) C Bus) ◊ Apply one byte Read/Write mode. 7) E PROM.
- Page 16 IC DESCRIPTION - 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.
- Page 17 IC DESCRIPTION 6. Pin Description...
- Page 18 IC DESCRIPTION...
- Page 19 IC DESCRIPTION...
- Page 20 IC DESCRIPTION I101 DCT814(LA76814) : IC VIDEO PROCESSOR AUDIO OUT SIF INPUT FM OUTPUT SIF APC FILTER PIF AGC SIF OUTPUT RF AGC OUT EXT. AUDIO INPUT PIF INPUT1 VCO FILTER PIF INPUT2 VCO COIL1 IF GND VCO COIL2 IF VCC APC FILTER FM FILTER VIDEO OUTPUT...
- Page 21 IC DESCRIPTION I801 POWER CONTROL MODULE DPM 001 TI PIN NO DESCRIPTION PIN NO DESCRIPTION GATE DRIVE1 +12V INPUT POWER CONTROL SOURCE GND1 GND2 GATE +133V INPUT GATE DRIVE2...
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Page 22: Trouble Shooting Charts
TROUBLESHOOTING GUIDE 1. NO POWER FROM FBT 10V Check R416 Check F801(125V 4A) D801 D801(PBS208GU) RLY01 F801 R801 PCW1 L801 Check R801(7W 2.2) TO I101 #34 T801 C819 Check D807 Voltage 133V C804 R814 Check 133V C814 waveform C820 R809 L802 TUNER D808... -
Page 23: No Picture
TROUBLESHOOTING GUIDE 2. NO PICTURE NG : GO to the figure c Check the waveform of I101 #46 OK : Go the figure d Check the voltages U102 SF101 IF OUT TUNER SAW FILTER T-DATA T-CLOCK Check clock/data signal Check #29 #30 IF AGC voltage I701... -
Page 24: No Sound
TROUBLESHOOTING GUIDE 3. NO SOUND NG : Go to the figure e Check audio output signal of I101 #1 OK : Go to the figure f U102 SF101 IF OUT TUNER SAW FILTER T-DATA T-CLOCK Check #29 #30 IF AGC voltage Check I701 SIF output signal... -
Page 25: Ch Don' T Stop
TROUBLESHOOTING GUIDE 4. CH DON’ T STOP NG : Loss of signal or weak signal Check the input signal conditions OK : Go to the figure g Check 5V/33V LINE U102 SF101 IF OUT TUNER SAW FILTER T-DATA T-CLOCK AGC IN C103 #29 #30 RF AGC OUTPUT... -
Page 26: No Color
TROUBLESHOOTING GUIDE 5. NO COLOR Check Check C.V.S waveform the voltage composite video in Video/Chroma/Deflection Vcc Check the crystal Check the voltage X502 I101 RGB Vcc (9V) R OUT G OUT B OUT Check R/G/B signal 6. NO VERTICAL DEFLECTION Check the voltage Check... -
Page 27: No On-Screen Disply
ROUBLESHOOTING GUIDE 7. NO ON-SCREEN DISPLAY Check the signal (60Hz) V.SYNC IN Check I701 clock/data signal H.SYNC IN MICOM I101 OSD R Check OSD G the signal (15,734Hz) OSD B BLANK #11 #12 XC701 32.768KHz Check ST-BY OSD R/G/B/BLANK signal Check the crystal If OSD does not operate,... -
Page 28: Electrical Parts List
ELECTRICAL PARTS LIST CAUTION “ I“ is a safety part, so it must be used the same part. “ ” is a recommendable part for essential stock. PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION ZZ100 48B3738T01 TRANSMITTER REMOCON R-38T01 C103 CEXF1H229V C ELECTRO 50V RSS 2.2MF (5X11) TP... - Page 29 ELECTRICAL PARTS LIST PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION C516 CEXF1H229V C ELECTRO 50V RSS 2.2MF (5X11) TP CC154 HCBK103KCA C CHIP CERA 50V X7R 0.01MF K 2012 C517 CMXB1H473J C MYLAR 50V 0.047MF J (TP) CC155 HCBK103KCA C CHIP CERA 50V X7R 0.01MF K 2012...
- Page 30 ELECTRICAL PARTS LIST PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION D502 D1N4148--- DIODE 1N4148 (TAPPING) L111 58C5580019 COIL CHOKE TRF-9225 (0.55UH) D503 DUZ9R1BM-- DIODE ZENER UZ-9.1BM 9.1V L112 5CPZ220K02 COIL PEAKING 22UH K (AXIAL 3.5MM) D504 D1N4148--- DIODE 1N4148 (TAPPING) L501 58N0000042...
- Page 31 ELECTRICAL PARTS LIST PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION R412 RN01B369JS R METAL FILM 1W 3.6 OHM J SMALL R822 RD-4Z363J- R CARBON FILM 1/4 36K OHM J R413 RN01B229JS R METAL FILM 1W 2.2 OHM J SMALL R883 DEC7R0M140 POSISTOR ECPAC7R0M140...
- Page 32 ELECTRICAL PARTS LIST PART CODE PART NAME DESCRIPTION PART CODE PART NAME DESCRIPTION RC566 HRFT123JCA R CHIP 1/10 12K OHM J 2012 RC794 HRFT102JCA R CHIP 1/10 1K OHM J 2012 RC567 HRFT103JCA R CHIP 1/10 10K OHM J 2012 RC795 HRFT103JCA R CHIP 1/10 10K OHM J 2012...
- Page 33 ZZ131 48519A4710 CRT GROUND NET 1401S-1015-1P ZZ132 48519A5110 CRT GROUND NET 2001S-1015-1P ZZ132 THE DIFFERENT PARTS LIST PART CODE PART NAME PART DESCRIPTION DTQ-14V1FC DTQ-14V6FCP 1DW8632AA2 IC MICOM DW863228V-AA2(5K39) I701 1DW8632AA3 IC MICOM DW863232V-AA3(5N23) I701 1AT24C02PC IC MEMORY AT24C02-10PC I703...
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Page 34: Exploded View
EXPLODED VIEW 1. DTQ-14V1FS... - Page 35 EXPLODED VIEW 2. DTQ-14V3FS...
- Page 36 EXPLODED VIEW 3. DTQ-14V5FC / FS...
- Page 37 EXPLODED VIEW 4. DTQ-14U1FS...
- Page 38 EXPLODED VIEW 5. DTQ-20V1FS...
- Page 39 EXPLODED VIEW 6. DTQ-20V3FS...
- Page 40 EXPLODED VIEW 7. DTQ-20V4FS...
- Page 41 EXPLODED VIEW 8. DTQ-20U1FS...
- Page 42 EXPLODED VIEW 9. DTQ-14V6...
- Page 43 -1 - Mon Aug 09 09:48:04 1999...
- Page 44 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 :djkoo@web.dwe.co.kr TEL : 82-2-360-8176~8180/8187 FAX : 82-2-360-8184...