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Instruction Manual
Service Manual
Color Television
CHASSIS :
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.
S/M No. : TCN001GMF0
CN-001GM
Mar. 2005
MPR. 2005
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Summary of Contents for Daewoo DTQ-14D4SSFM
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Page 1: Service Manual
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. -
Page 2: Table Of Contents
TABLE OF CONTENTS SAFETY PRECAUTIONS PRODUCT SAFTY SERVICING GUIDELINES FOR AUDIO-VIDEO PRODUCS PRODUCT SAFTY SERVICING GUIDELINES FOR COLOR TELEVISION RECEIVERS SPECIFICATIONS BLOCK DIAGRAM ALIGNMENT INSTRUCTIONS SERVICE MODE ADJUSTMENTS ASSEMBLY ADJUSTMENTS PARENTAL CONTROL PASSWORD SETTINGS SCHEMATIC DIAGRAM EXPLODED VIEW PRINTED CIRCUIT BOARD ELECTRICAL PARTS LIST APPENDIX(Appendix is provide only by internet [http://svc,dwe.co.kr]) IC DESCRIPTION... -
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 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... -
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 ALIGNMENT INSTRUCTIONS Table-B DATA MODE ADJUSTMENT ITEMS REMARKS INITIAL RANGE Screen Adjustment Auto Vco OK, NG VIF VCO Adj 0~63 Auto Hvco OK, NG H Vco adj Auto RFAGC OK, NG RF-DELAY 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...
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Page 10: Assembly Adjustments
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. - Page 11 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 V. SHIFT V. SIZE VBLK SHIFT VBLK SHIFT ON NO SD POWER OFF MOVE ADJUST RECALL:SET...
- Page 12 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. 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 ∑...
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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 15: Exploded View
EXPLODED VIEW... - Page 16 EXPLODED VIEW...
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Page 19: Electrical Parts List
58C0000116 COIL BEAD HC-3550R ZZ132 48519A4710 CRT GROUND NET 1401S-1015-1P R883 DJ140M290L POSISTOR J503P63D140M290L ZZ140 PTCACAH725 CABINET AS DTQ-14D4SSFM RLY1 5SC0101335 SW RELAY DY2-5 CRT1 PTRTPWH394 CRT AS “NTSC 14”” ITC CRT AS” RS801 DSVC471D14 VARISTOR SVC471D14A (BULK) 58D0000082 COIL DY... - Page 20 R M-OXIDE FILM 2W 15 OHM J SMALL RC978 HRFT102JBA R CHIP 1/10 1K OHM J 1608 ZZ200 PTMPJRH725 PCB MAIN RADIAL AS DTQ-14D4SSFM RC979 HRFT272JBA R CHIP 1/10 2.7K OHM J 1608 C101 CEXF1H109V C ELECTRO 50V RSS 1MF (5X11) TP...
- Page 21 AWG22 1/0.65 TIN COATING Z502 5PXLT4R5MT FILTER CERA LT 4.5MH-TP 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING ZZ200 PTMPJAH725 PCB MAIN AXIAL AS DTQ-14D4SSFM J100 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING 2TM14006LB TAPE MASKING 3M #232 6.0X2000M J102 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING...
- Page 22 ELECTRICAL PARTS LIST PART CODE PART NAME DESCRIPTION REMARK PART CODE PART NAME DESCRIPTION REMARK J107 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J109 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING 85801065GY WIRE COPPER...
- Page 23 ELECTRICAL PARTS LIST PART CODE PART NAME DESCRIPTION REMARK R307 RD-AZ303J- R CARBON FILM 1/6 30K OHM J R308 RD-AZ202J- R CARBON FILM 1/6 2K OHM J R309 RD-AZ822J- R CARBON FILM 1/6 8.2K OHM J R310 RD-AZ303J- R CARBON FILM 1/6 30K OHM J R312 RD-AZ104J-...
- Page 24 ELECTRICAL PARTS LIST AUTO FREE, 220V DIFFERENTIAL PARTS LIST PARTS_NAME 220V AUTO FREE VOLTAGE PARTS_DESC. PARTS_DESC. R801 R CEMENT RX07B339JP 7W 3.3 OHM J BEN 15MM 4P RX07B109JP 7W 1 OHM J BEN 15MM4P R895 R CARBON FILM RD-4Z513J- 1/4 51K OHM J DTQ-20D4SSFM_20D7SSFM DIFFERENTIAL LIST PARTS_NAME DTQ-20D4SSFM...
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Page 25: Ic Description
IC DESCRIPTION I. MICOM Outline. 1. Abstract. This specification is 1-Tunner Mono Model for North America, CCD 1-Chip MICOM M37150. It is developing software specification for tuning only NTSC system TV F/S. 2. H/W Outline. 1) ROM : 32K x 8bits.tsc 2) RAM : 1152 x 8bits. - Page 26 IC DESCRIPTION - Closed Caption Mode. (Off<-->C1<-->C2<-->T1<-->T2<-->Off) - CC On Mute.(Off / On) - When CC On Mute is On, Output is selected a item of Closed Caption Modes. 3) Tuning Function. - I2C Bus. - PLL IC Interface. - FS 181 Channel (AIR 2-69CH, CABLE 1-125CH)" - AFT Operation(Fine Tuning ) -2.5 ~ Fn ~ +2.5MHz - AIR/CABLE (STD, HRC, IRC ).
- Page 27 IC DESCRIPTION 5. The Table of Option and Schedule OPTION REFERENCE REMARKS TV ONLY (H) LOW (DC 0V): VIDEO (L) : Video Model (“V” Series) HIGH (DC 5V) : TV (H) : No Video Model (“P” Series) PRISON LOW (DC 0V): NORMAL (L) : Normal Video HIGH (DC 5V) : PRISON (H) : Clock Menu (TIME) delete...
- Page 28 Appendix IC DESCRIPTION II. PIN ASSIGN TV ONLY P11/SCL1 P12/SCL2 CLOCK(EEPROM) TV / Y P00/PWMO P13/SDA1 PRISON AV1/AV2 P01/PWM1 P14/SDA2 DATA(EEPROM) DG ON RELAY P02/PWM2 P16/AD8/TIM2 MONITOR S-IN P03/PWM3/AD1 P50/H SYNC H SYNC TV/AV P04/PWM4/AD2 P51/V SYNC V SYNC AFT IN P52/B X-RAY P06/INT2/AD4...
- Page 29 Appendix IC DESCRIPTION III. PIN DESCRIPTION...
- Page 30 IC DESCRIPTION IV. M61250(CROMA) Pin Configuration SIF LIMIT ER IN V RAMP CAP AFT OUT 8.7V REG OUT VIF Vcc(1) [ Cr IN ] VIF Vcc(2) [ Cb IN ] V. RAMP OUT Hi Vcc V RAMP F/B AUDIO AT T AFC FILT ER VREG Vcc DEF GND(1)
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Page 31: Troubleshooting Guide
TROUBLESHOOTING GUIDE Appendix 1. NO POWER... -
Page 32: No Picture
#40 #42 C517 180V... -
Page 33: No Sound
#40 #42 Z502 4.5M Trap Check ATT FILTER Circut C603... -
Page 34: Ch Don't Memory Or Ch Skip
Check T-SDA/SCL #31 #30 SVC S5 Key input Vco adjust... -
Page 35: No Color
Check the voltage (25V) Vertical IC Vcc (25V) -
Page 36: No On Screen Disply
Check the voltage... - Page 37 DAEWOO ELECTRONICS CORP. 686, AHYEON-DONG, MAPO-GU, SEOUL, KOREA. C.P.O. BOX 8003 SEOUL KOREA PRINTED DATE : MAR. 2005...
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