Daewoo DTQ-14P2FCM Service Manual

Color television

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Service Manual

Color Television
CHASSIS : CN-001M
Model
DTQ-14P2/P3FCM
DTQ-14P2/V1FCWM/P2SCM
DTQ-14V1/V5FCM/V1/V4SCM
DTQ-14V5FCNM/15U5SCM
DTQ-14V6FCBM/FCPM/FBBM/FPPM
DTQ-14J4FCGM/FCCM
DTQ-20V1/V4/V5FCM
DTQ-20V1/V4SCM
DTQ-20P2/P3FCM/P2SCM
DTQ-14V6NBM/NPM
DTQ-14V1/V3/V5FSM
DTQ-14V1/V3/V4/V5/V8/V9SSM
DTQ-14U1FSM/SSM/20U1FSM/SSM
DTQ-20P2SSM/15U5FSM
DTQ-20V1/V3/V4FSM
DTQ-20V1/V3/V4/V8/V9SSM
DTQ-14V1/V4/V5FSPM
DTQ-14V1/V4/V5/U1SSPM
DTQ-14V6NBPM/NPPM
DTQ-20V1/V4FSPM
DTQ-20V1/V3/V4/U1SSPM
DTQ-15U5SSPM
DTQ-14V1/V4SSFM
DTQ-20V1/V4SSFM
DTQ-14V4/20V4FCFM
 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.:TCN001MEF0
U.S.A
CANADA
(AC120V)
Middle America
(AC 110V)
Chile, Peru, Philippines
(AC220V)
Dominica
(AC60~180)
Korea, USA, Japen(AC90~250V)
May. 2002

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Table of Contents
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Summary of Contents for Daewoo DTQ-14P2FCM

  • Page 1: Service Manual

    : 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 May. 2002...
  • 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: Product Safty Servicing Guidelines For Audio - Video Producs

    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...
  • Page 6: Specifications

    SPECIFICATIONS DTQ-14P2/P3FCM DTQ-14P2/V1FCWM/P2SCM MODEL DTQ-14V1/V5FCM/V1/V4SCM DTQ-14V5FCNM/15U5SCM DTQ-14V6FCBM/FCPM/FBBM/FPPM DTQ-14J4FCGM/FCCM DTQ-14V1/V4/V5FSPM DTQ-20V1/V4FSPM ITEMS DTQ-14V1/V4SSFM DTQ-20V1/V4/V5FCM DTQ-20V1/V4SCM DTQ-14V1/V4/V5/U1SSPM DTQ-20V1/V3/V4/U1SSPM DTQ-20V1/V4SSFM REMARKS DTQ-20P2/P3FCM/P2SCM DTQ-14V6NBPM/NPPM DTQ-15U5SSPM DTQ-14V6NBM/NPM DTQ-14V4/20V4FCFM DTQ-14V1/V3/V5FSM DTQ-14V1/V3/V4/V5/V8/V9SSM DTQ-14U1FSM/SSM/20U1FSM/SSM DTQ-20P2SSM/15U5FSM DTQ-20V1/V3/V4FSM DTQ-20V1/V3/V4/V8/V9SSM TV STANDARD NTSC-M POWER INPUT AC60-180V(SSFM Series) AC 220V 50/60 Hz AC 120V 60 Hz AC90-250V(FCFM Series) 14 = 55W...
  • 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 ALIGNMENT INSTRUCTIONS...
  • Page 10 ALIGNMENT INSTRUCTIONS Press the volume up or down button to exit in the screen adjustment mode.
  • Page 11 ALIGNMENT INSTRUCTIONS...
  • Page 12 ALIGNMENT INSTRUCTIONS to obtain normal Fixed value = 20 Fixed value = 32 Fixed value = 32...
  • Page 13: Parental Control Password Settings

    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. •...
  • Page 14: Voltage Chart

    VOLTAGE CHART MODE MODE I501 2.17 2.63 1.95 2.39 2.16 2.39 0.49 3.62 2.86 4.23 0.51 2.86 4.23 0.51 4.87 0.57 2.19 0.65 1.76 1.99 0.32 2.46 0.28 2.39 4.93 3.08 4.86 4.92 MODE 3.59 1.38 I301 2.21 1.39 25.7 1.39 2.27 3.63...
  • Page 15 VOLTAGE CHART MODE MODE I701 4.86 4.96 I703 4.81 4.94 5.03 4.97 5.03 4.97 4.91 4.94 1.87 4.86 4.92 2.71 2.67 4.99 4.91 5.01 4.95 5.04 4.95 MODE 2.28 I801 2.47 4.88 2.33 1.33 4.93 4.87 3.71 3.64 18.28 9.19 2.66 2.44 137.2...
  • Page 16 VOLTAGE CHART MODE MODE Q201 5.03 4.95 Q703 5.04 4.17 3.29 3.26 0.44 2.51 2.47 1.06 Q401 -3.63 35.55 Q704 4.92 4.97 4.89 0.35 4.35 4.28 Q402 130.2 102.3 Q707 5.05 4.98 0.18 4.19 0.06 4.89 Q404 10.23 Q804 132.6 102.2 132.2 102.2...
  • Page 17: Waveforms

    WAVEFORMS (1) I101 PIN 19 (2) I101 PIN 20 V:1V/div V:1V/div H:25us/div H:25us/div (3) I101 PIN 21 (4) I101 PIN 23 V:1V/div V:500mV/div H:25us/div H:5ms/div (5) I101 PIN 40 (6) I101 PIN 44 V:500mV/div V:500mV/div H:25us/div H:25us/div (7) I101 PIN 46 (8) I101 PIN 6 V:500mV/div V:10V/div...
  • Page 18 WAVEFORMS (9) I701 PIN 7 (10) I101 PIN 17 V:1V/div V:2V/div H:50us/div H:25us/div (11) I701 PIN 18 (12) I801 PIN 7 V:20V/div V:100V/div H:25us/div H:10us/div (13) T402 PIN 25.5V (14) T402 PIN 10.5V V:100V/div V:50V/div H:25us/div H:25us/div (15) T402 PIN HEATER (16) T402 PIN 200V V:10V/div V:100V/div...
  • Page 19 WAVEFORMS (17) T401 PIN H.V (18) T801 PIN 133V V:100V/div V:100V/div H:25us/div H:10us/div (19) Q401 COLLECTOR (20) CRT SOCKET PIN B V:5V/div V:50V/div H:25us/div H:25us/div (21) CRT SOCKET PIN R (22) CRT SOCKET PIN G V:50V/div V:50V/div H:25us/div H:25us/div...
  • Page 20: Schematic Diagram

    SCHEMATIC DIAGRAM...
  • Page 21: Exploded View

    EXPLODED VIEW 1. DTQ-14V1FSM...
  • Page 22 EXPLODED VIEW 2. DTQ-14V3FSM...
  • Page 23 EXPLODED VIEW 3. DTQ-14V5FCM / FSM...
  • Page 24 EXPLODED VIEW 4. DTQ-14U1FSM...
  • Page 25 EXPLODED VIEW 5. DTQ-20V1FSM...
  • Page 26 EXPLODED VIEW 6. DTQ-20V3FSM...
  • Page 27 EXPLODED VIEW 7. DTQ-20V4FSM...
  • Page 28 EXPLODED VIEW 8. DTQ-20U1FSM...
  • Page 29: 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 30 ELECTRICAL PARTS LIST z_loc z_parts_code parts_name parts_descr remark z_loc z_parts_code parts_name parts_descr JC704 HRFS000-BA R CHIP 1/16 0 OHM 1608 RC752 HRFS471JBA R CHIP 1/16 470 OHM J 1608 RC150 HRFS153JBA R CHIP 1/16 15K OHM J 1608 RC755 HRFS102JBA R CHIP 1/16 1K OHM J 1608 RC151...
  • Page 31 ELECTRICAL PARTS LIST z_loc z_parts_code parts_name parts_descr remark z_loc z_parts_code parts_name parts_descr remark R881 DDT7R0M140 POSISTOR ECPAC7R0M140 C301 CMXM2A103J C MYLAR 100V 0.01MF J (TP) ZZ200 PTMPJBH567 PCB MAIN M-10 AS DTQ-14V1FCM C302 CEXF1H479V C ELECTRO 50V RSS 4.7MF (5X11) TP 2TM18006BE TAPE MASKING 6.2X500...
  • Page 32 ELECTRICAL PARTS LIST z_loc z_parts_code parts_name parts_descr remark z_loc z_parts_code parts_name parts_descr L805 58CX430599 COIL CHOKE AZ-9004Y 940K TP C551 CCZB1H101K C CERA 50V B 100PF K (AXIAL) L901 5CPX121J— COIL PEAKING 120UH J (RADIAL) C552 CCZB1H101K C CERA 50V B 100PF K (AXIAL) Q201 TKSC945CY- KSC 945C-Y (TAPPING)
  • Page 33 ELECTRICAL PARTS LIST z_loc z_parts_code parts_name parts_descr remark z_loc z_parts_code parts_name parts_descr remark J007 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J709 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J009 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J710 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J010 85801065GY...
  • Page 34 ELECTRICAL PARTS LIST z_loc z_parts_code parts_name parts_descr remark z_loc z_parts_code parts_name parts_descr R452 RD-4Z113J- R CARBON FILM 1/4 11K OHM J R910 RD-2Z332J- R CARBON FILM 1/2 3.3K OHM J R501 RD-2Z151J- R CARBON FILM 1/2 150 OHM J R911 RD-2Z332J- R CARBON FILM 1/2 3.3K OHM J...
  • Page 35 DAEWOO ELECTRONICS CO., LTD 686, AHYEON-DONG MAPO-GU SEOUL, KOREA C.P.O. BOX 8003 SEOUL, KOREA TELEX : DWELEC K28177-8 CABLE : “ DAEWOOELEC”...
  • Page 36: Ic Description

    IC DESCRIPTION Appendix U-COM(I701) X’ TAL:32.768 KHz...
  • Page 37 IC DESCRIPTION Appendix 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 2. H/W Outline. 1) ROM : 28,672 x 8bits.tsc : 15,872 x 8 bits for CGROM. 2) RAM : 512 x 8bits.
  • Page 38 IC DESCRIPTION Appendix 3) On Screen Displays function is interior designed. 4) Package. : 36 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. : 24C04(I C Bus) Apply one byte Read/Write mode.
  • Page 39 IC DESCRIPTION Appendix - 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.----------------------- (Option) - Power Restore.
  • Page 40 IC DESCRIPTION Appendix 6. Pin Description Terminal Name Explanation Remarks P10/SDA0 ROM Data Main 6 bit input/output port IC Data Input/output can be Specified for each bit ROM CLK Other function. P11/SCLK0 Main IC CLK IIC0 data I/O P12/SDA1 IIC0 clock output. Tuner Data IIC1 data I/O IIC1 clock output.
  • Page 41 IC DESCRIPTION Appendix Terminal Name Explanation Blue output terminal of RGB image Fast blanking control signal Switch TV image Signal and caption / OSD image signal Output terminal Audio Mute Use only read data of LA76814/10 Use when does power off/on Power On Power off: Output Low(DC 0V) Power on: Output High(DC 5V)
  • Page 42 IC DESCRIPTION Appendix I101 LA76845 : IC VIDEO PROCESSOR AUDIO OUT SIF INPUT FM OUTPUT SIF APC FILTER PIF AGC SIF OUTPUT RF AGC OUT EXT. AUDIO INPUT PIF INPUT1 APC FILTER PIF INPUT2 VCO COIL1 IF GND VCO COIL2 IF VCC VCO FILTER FM FILTER...
  • Page 43: No Power

    TROUBLESHOOTING GUIDE Appendix 1. NO POWER Check F801(7W, 2.2) L801 C810 R801 D804 R821 C811 FB01 C818 R822 C819 125V 4A Check F801(125V/4A) R813 R814 +133V L805 C820 T801 C814 TSM-3541T8 Check Voltage C813 +133V R807 Check D807 voltage L807 D824 C804 +45V...
  • Page 44: No Picture

    TROUBLESHOOTING GUIDE Appendix 2. NO PICTURE NG : GO to the figure c Check the waveform of I101 #46 OK : Go the figure d 1701 MICOM...
  • Page 45: No Sound

    TROUBLESHOOTING GUIDE Appendix 3. NO SOUND NG : Go to the figure e Check audio output signal of I101 #1 OK : Go to the figure f g 1701 MICOM...
  • Page 46: Ch Don' T Memory Or Ch Skip

    TROUBLESHOOTING GUIDE Appendix 4. CH DON’T MEMORY or SKIP NG : Loss of signal or weak signal Check the input signal conditions OK : Go to the figure h Check T-SDA/SCL...
  • Page 47: No Color

    TROUBLESHOOTING GUIDE Appendix 5. NO COLOR check the Voltage (3.4V) 6. NO VERTICAL DEFLECTION...
  • Page 48: No On-Screen Disply

    TROUBLESHOOTING GUIDE Appendix 7. NO ON-SCREEN DISPLAY 8. REMOTE CONTROL DOES NOT OPERATE...

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