Daewoo DTQ-20U4SC Service Manual
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Daewoo DTQ-20U4SC Service Manual

Daewoo DTQ-20U4SC Service Manual

Color television
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Service Manual

COLOR TELEVISION
CHASSIS : CN-230F
Model : DTQ-20U4SC
DTQ-2033SC
DTQ-27U4SC
DTQ-21U4SS (México)
DTQ-29U4SS (México)
 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).
http : //svc.dwe.co.kr
S/M No : TCN230FEF0
Mar. 2003

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Summary of Contents for Daewoo DTQ-20U4SC

  • Page 1: Service Manual

    S/M No : TCN230FEF0 Service Manual COLOR TELEVISION CHASSIS : CN-230F Model : DTQ-20U4SC DTQ-2033SC DTQ-27U4SC DTQ-21U4SS (México) DTQ-29U4SS (México)  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).

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SAFETY PRECAUTIONS SPECIFICATIONS CIRCUIT BLOCK DIAGRAM ALIGNMENT INSTRUCTIONS YOUR REMOTE CONTROL SERVICE MODE ADJUSTMENT ASSEMBLY ADJUSTMENT SCHEMATIC DIAGRAM ELECTRICAL PARTS LIST DIFFERENT PARTS LIST EXPLODE VIEW PRINTED CIRCUIT BOARD APPENDIX(Appendix is provide only by internet[http://svc.dwe.co.kr]) IC DESCRIPTION WAVEFORMS TROUBLE SHOOTING GUIDE NO POWER...

  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS 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.
  • Page 4 SAFETY PRECAUTIONS CAUTION : Do not attempt to modify this product in any way. Unau- The lightning flash with arrowhead symbol, thorized modifications will not only void the warranty, but may lead to your within an equilateral triangle, is intended to alert being liable for any resulting property damage or user injury.
  • Page 5 SAFETY PRECAUTIONS SUBJECT : IMPLOSION 4. Wall and shelf mounted installations using a commercial mounting 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 during installation.

  • Page 6: Specifications

    SPECIFICTION Model DTQ-20U4SC DTQ-2033SC DTQ-27U4SC Item CHASSIS CN-230F TV Standard NTSC-M Power Input AC 120v, 60Hz Power Consumption 120W Tuning System Frequency Synthesizer(FS) Tuning System Tuning Ranges VHF(L) : CH2 - CH6 UHF(H) : CH7 - CH13 UHF : CH14 - CH69...

  • Page 7: Circuit Block Diagram

    CIRCUIT BLOCK DIAGRAM...

  • Page 8: Alignment Instructions

    ALIGNMENT INSTRUCTION Your Remote Control(R-43A07) 1. POWER use this button to turn your TV on or off. 2. MUTE Use to turn the TV's sound on and off. MUTE POWE R Use these buttons to change your TV's volume, to activate selections in the menu system.

  • Page 9: Service Mode Adjustment

    ALIGNMENT INSTRUCTION 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 10: Alignment Instruction

    ALIGNMENT INSTRUCTION Table-B MODE ADJUSTMENT DATA REMARKS INITIAL20” INITIAL 27” RANGE Screen Adjustment SOUND CONTROL FM/AM PRE 0~127 SCART PRE 0~127 MONI VOL 0~127 QUASI CHECK YES/NO NO SD NO POWER YES/NO V-SIZE 0~510 V-POSI 1312 1280 240~1712 H-PHASE 0~255 H-SIZE 2182 4~4092...

  • Page 11: Assembly Adjustment

    ALIGNMENT INSTRUCTION 2. ASSEMBLY ADJUSTMENTS 1) SCREEN ADJUSTMENT (S2) • Enter the service mode and select service adjustment S2. • You can 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 12 ALIGNMENT INSTRUCTION 3-3. Vertical Size Adjustment • Select “V.SIZE” item, adjust “V.SIZE” data value to proper vertical size as follows. 4) WHITE BALANCE ADJUSTMENT(S8) • Receive a good local channel. • Enter the service mode and select service adjustment S8. •...
  • Page 13 ALIGNMENT INSTRUCTION • Select Subbrightness item, adjust Subbrightness data value to obtain normal brightness level. • Press the DISPLAY button to memorize the data. CONTRAST • Fixed value = 13 TINT • Fixed value = 200 COLOR • Fixed value = 100 6) FACTORY OUTGOING MODE (S12 : FACT) •...

  • Page 14: Schematic Diagram

    SCHEMATIC DIAGRAM 20U4(SHEET-1) -13-...
  • Page 15 SCHEMATIC DIAGRAM 20U4 (SHEET-2) -14-...
  • Page 16 SCHEMATIC DIAGRAM 27U4(SHEET-1) -15-...
  • Page 17 SCHEMATIC DIAGRAM 27U4(SHEET-2) -16-...

  • Page 18: Electrical Parts List

    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) **This BOM is based on DTQ-20U4SC PARTS CODE...
  • Page 19 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK C331 CEYD1H689W C ELECTRO 50V RHD 6.8MF (16X35.5) C404 CMYH3C912J C MYLAR 1.6KV BUP 9100PF J C406 CMYE2G364J C MYLAR 400V PU 0.36MF J C801 CL1UC3104M C LINE ACROSS WORLD AC250V 0.1UF M R.47 C804 CEYN2D331P C ELECTRO...
  • Page 20 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK JP05 4859102130 JACK EARPHONE YSC-1537 L301 58C7070085 COIL CHOKE TLN-3062A L401 58H0000020 COIL H-LINEARITY L-76(76.5UH) L801 5PLF24A3— FILTER LINE LF-24A3 P502 4859235320 CONN WAFER YW025-10 PWC1 4859907810 CORD POWER AS ME301P+TER=2100 Q402 PTE2SW7609...
  • Page 21 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK E004 4856310600 EYE LET BSR T0.2 (R2.3) E005 4856310600 EYE LET BSR T0.2 (R2.3) E006 4856310600 EYE LET BSR T0.2 (R2.3) E007 4856310600 EYE LET BSR T0.2 (R2.3) E008 4856310600 EYE LET BSR T0.2 (R2.3) E009...
  • Page 22 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK E053 4856310300 EYE LET BSR T0.2 (R1.6) E056 4856310300 EYE LET BSR T0.2 (R1.6) E057 4856310300 EYE LET BSR T0.2 (R1.6) E058 4856310300 EYE LET BSR T0.2 (R1.6) E059 4856310300 EYE LET BSR T0.2 (R1.6) E060...
  • Page 23 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK C204 CEXF1H100V C ELECTRO 50V RSS 10MF (5X11) TP C210 CEXF1H470V C ELECTRO 50V RSS 47MF (6.3X11) TP C301 CMXM2A103J C MYLAR 100V 0.01MF J (TP) C302 CEXF1H479V C ELECTRO 50V RSS 4.7MF (5X11) TP C303 CEXF1H100V...
  • Page 24 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK C615 CEXF1H338V C ELECTRO 50V RSS 0.33MF (5X11) TP C616 CEXF1H338V C ELECTRO 50V RSS 0.33MF (5X11) TP C617 CEXF1H338V C ELECTRO 50V RSS 0.33MF (5X11) TP C618 CEXF1H100V C ELECTRO 50V RSS 10MF (5X11) TP C620 CEXF1H100V...
  • Page 25 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK Q601 TKTC3198Y- KTC3198Y Q602 TKTC3198Y- KTC3198Y Q603 TKTA1266Y- KTA1266Y (TP) Q701 TKTC3198Y- KTC3198Y Q702 TKTC3198Y- KTC3198Y Q704 TKTA1266Y- KTA1266Y (TP) Q706 TKTC3198Y- KTC3198Y Q708 TKTC3198Y- KTC3198Y Q802 TKTC3198Y- KTC3198Y Q804 TKSA1013Y- KSA1013Y (TP) Q805...
  • Page 26 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK C510 CCZB1H221K C CERA 50V B 220PF K (AXIAL) C511 CCZB1H221K C CERA 50V B 220PF K (AXIAL) C514 CCZF1H103Z C CERA 50V F 0.01MF Z C515 CCZF1H103Z C CERA 50V F 0.01MF Z C516 CCZF1H103Z...
  • Page 27 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK D304 D1N4148—- DIODE 1N4148 (TAPPING) D401 D1N4937G— DIODE 1N4937G (TAPPING) D402 DUZ9R1BM— DIODE ZENER UZ-9.1BM D405 D1N4937G— DIODE 1N4937G (TAPPING) D406 D1N4937G— DIODE 1N4937G (TAPPING) D407 D1N4937G— DIODE 1N4937G (TAPPING) D408 D1N4937G—...
  • Page 28 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK J125 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J126 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J127 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J128 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J129 85801065GY WIRE COPPER...
  • Page 29 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK J182 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J183 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J186 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J187 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J188 85801065GY WIRE COPPER...
  • Page 30 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK J256 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J257 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J258 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J267 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J268 85801065GY WIRE COPPER...
  • Page 31 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK J512 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J556 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J611 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J705 85801065GY WIRE COPPER AWG22 1/0.65 TIN COATING J713 85801065GY WIRE COPPER...
  • Page 32 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK R103 RD-AZ102J- R CARBON FILM 1/6 1K OHM J R104 RD-AZ102J- R CARBON FILM 1/6 1K OHM J R105 RD-2Z392J- R CARBON FILM 1/2 3.9K OHM J R201 RD-4Z241J- R CARBON FILM 1/4 240 OHM J R202 RD-AZ750J-...
  • Page 33 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK R509 RD-AZ303J- R CARBON FILM 1/6 30K OHM J R518 RD-AZ682J- R CARBON FILM 1/6 6.8K OHM J R519 RD-AZ682J- R CARBON FILM 1/6 6.8K OHM J R520 RD-AZ472J- R CARBON FILM 1/6 4.7K OHM J R523 RD-AZ472J-...
  • Page 34 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK R612 RD-AZ101J- R CARBON FILM 1/6 100 OHM J R613 RD-AZ101J- R CARBON FILM 1/6 100 OHM J R614 RD-AZ101J- R CARBON FILM 1/6 100 OHM J R615 RD-AZ101J- R CARBON FILM 1/6 100 OHM J R616 RD-AZ101J-...
  • Page 35 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK R746 RD-AZ222J- R CARBON FILM 1/6 2.2K OHM J R747 RD-AZ392J- R CARBON FILM 1/6 3.9K OHM J R748 RD-AZ472J- R CARBON FILM 1/6 4.7K OHM J R750 RD-AZ472J- R CARBON FILM 1/6 4.7K OHM J R751 RD-AZ471J-...
  • Page 36 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK R881 RC-2Z565KP R CARBON COMP 1/2 5.6M OHM K R884 RC-2Z225KP R CARBON COMP 1/2 2.2M OHM K R892 RD-AZ203J- R CARBON FILM 1/6 20K OHM J R893 RN-AZ2002F R METAL FILM 1/6 20.0K OHM F R980 RD-4Z684J-...
  • Page 37 ELECTRICAL PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK R909 RD-AZ432J- R CARBON FILM 1/6 4.3K OHM J R910 RD-2Z683J- R CARBON FILM 1/2 68K OHM J R911 RD-AZ751J- R CARBON FILM 1/6 750 OHM J R912 RC-2Z102K- R CARBON COMP 1/2 1K OHM K R913 RD-AZ331J-...

  • Page 38: Different Parts List

    DIFFERENT PARTS LIST **This BOM is based on DTQ-27U4SC, it is different parts list in comparison with DTQ-20U4SC. PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK I801 PTC2SW7720 HEAT SINK ASS`Y 1MR2540—- + 7174300811 00001 1MR2540—- IC POWER MR2540 0000A 4857027720...
  • Page 39 DIFFERENT PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK R302 RN02B620JS R METAL FILM 2W 62 OHM J SMALL R305 RN02B910JS R METAL FILM 2W 91 OHM J SMALL R351 RD-4Z362J- R CARBON FILM 1/4 3.6K OHM J R353 RN-AZ1302F R METAL FILM 1/6 13K OHM F...
  • Page 40 DIFFERENT PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK V901 4859635262 A68QDL280X011(B) P38 ZZ120 PTBCSHK009 COVER BACK AS DTQ-29U4SC ZZ130 PTPKCPK009 PACKING AS DTQ-29U4SC ZZ131 48519A4210 CRT GROUND NET 2901H-1015-2P ZZ132 58G0000143 COIL DEGAUSSING DC-29S1 ZZ140 PTCACAK009 CABINET AS DTQ-29U4SC ZZ200 PTCPJ0K009...
  • Page 41 DIFFERENT PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK C945 CEXF2C100V C ELECTRO 160V RSS 10MF (10X16) TP C946 CEXF1C331V C ELECTRO 16V RSS 330MF (8X11.5) TP C947 CMXL2E104K C MYLAR 250V MEU 0.1MF K D905 DUZ12BM—- DIODE ZENER UZ-12BM (UNIZON) D906 D1N4148—-...
  • Page 42 DIFFERENT PARTS LIST PARTS CODE PARTS NAME PARTS DESCRIPTION REMARK R557 RD-AZ223J- R CARBON FILM 1/6 22K OHM J R558 RD-AZ101J- R CARBON FILM 1/6 100 OHM J R559 RD-AZ221J- R CARBON FILM 1/6 220 OHM J R921 RC-2Z102K- R CARBON COMP 1/2 1K OHM K R922 RD-2Z100J-...

  • Page 43: Explode View

    Designed by Checked by Inspected by Approved by ASSY NAME UNITS BAE.J.H DEVELOPMENT DWG ( 1 / 1 ) SCALE 0.250 MODEL DTQ-20U4SC Daewoo Electronics Corp. 485009M6 CN-230F Mechani c al Desi g n Team, TV Research Center REFERENCE -42-...
  • Page 44 Checked by Inspected by Approved by PART NAME UNITS Han k s Han k s DEVELOPMENT.DWG ( 1 / 1 ) 0.280 SCALE MODEL DTQ-2033SC Daewoo Electronics Corp. 485009JE Mechani c al Desi g n Team, TV Research Center REFERENCE -43-...
  • Page 45 Designed by Checked by Inspected by Approved by ASSY NAME UNITS AHN.J.S DEVELOPMENT DWG ( 1 / 1 ) SCALE 0.200 MODEL DTQ-27U4SC Daewoo Electronics Corp. 485009KL CN-230F Mechani c al Desi g n Team, TV Research Center REFERENCE -44-...

  • Page 46: Printed Circuit Board

    PRINTED CIRCUIT BOARD (CN-230F/MAIN) -45-...
  • Page 47 PRINTED CIRCUIT BOARD(CN-230F/20U4 CRT) -46-...
  • Page 48 PRINTED CIRCUIT BOARD(CN-230F/27U4 CRT) -47-...

  • Page 49: Ic Description

    IC DESCRIPTION Appendix 1. Pin Congiguration POWER D/G SW A mute V SW AV OP MSPRES INCH OP VDPRES Spare ST LED I701 RC IN DW8638TA1 I/P I/O S-VHS KEY IN SCL1 AFT IN SDA1 SCL2 SDA2 RESET OSD I FILTER OSDblk CVBS in...

  • Page 50: Pin Description

    IC DESCRIPTION Appendix 2. Pin Description PIN NAME DESCRIPTION AV(CVBS in) OPTION H : AV1~AV2, CVI ; L : AV1~AV3, CVI INCH OPTION NC(Spare) Crystal INPUT Crystal OUTPUT Supply Voltage(+5V) P84/AN4 Key INPUT P85/AN5 AFT Signal INPUT P86/AN6 P87/AN7 RES(inv) Reset FILT MCU PLL Filter...
  • Page 51 Appendix IC DESCRIPTION 3. Pin Congration TEST VIN4 RESQ VIN3 VIN2 VIN1 GNDD CIN1 VOUT VSUPAF SGND INTLC GNDAF VPROT CBIN SAFETU CIN2/CRIN HFLB XTAL2 GNDD XTAL1 I501 VSUPD HOUT GNDD CLK20 VSUPD FBLIN2 VDP3130Y BIN2 GIN2 RIN2 FBLIN GNDD RSW2 BOUT RSW1...
  • Page 52 IC DESCRIPTION Appendix 4. Pin Description Pin No. Pin Name Type Short Description TEST Test Input RESQ Reset Input IN/OUT I2C Bus Clock IN/OUT I2C Bus Data GNDD SUPPLY Digital Ground Half Contrast Switch Input Front Sync Out Composite Sync Output Vertical Sync Output INTLC Interlace Control Output...
  • Page 53 IC DESCRIPTION Appendix Pin No. Pin Name Type Short Description RIN2 Analog Red Input2 GIN2 Analog Green Input2 BIN2 Analog Blue Input2 FBLIN2 Fast Blank Input CLK20 20.25MHz System Clock Output HOUT Horizontal Drive Output XTAL1 Analog Crystal Input XTAL2 Analog Crystal Output CIN2/CRIN Analog chroma2/component CR Input...
  • Page 54 WAVEFORMS Appendix (1) I801 PIN7 POWER ON (1) I801 PIN7 STAND-BY (2) T801 PIN17 POWER ON (2) T801 PIN17 STAND-BY (3) I501 PIN50 HOUT (4)T402 PIN1 HOR.OUT -53-...

  • Page 55: Waveforms

    WAVEFORMS Appendix (6) T402 PIN9 HEATER LINE (5) T402 PIN3 200V LINE (8) T402 PIN6 27V LINE (7) T402 PIN4 12V LINE (10) I501 PIN32 E/W (9) I501 PIN31 VERTICAL RAMP -54-...
  • Page 56 WAVEFORMS Appendix (12) I501 PIN52 VDP X-TAL (11) CVBS (Composite Video) (14) SVM Q902 BASE (13) I501 PIN11 VSYNC (16) SVM Q907 BASE (15) SVM Q906 BASE -55-...
  • Page 57 WAVEFORMS Appendix (18) I901 PIN7 ROUT (17) SVM Q909 BASE -56-...

  • Page 58: Troubleshooting Guide

    TROUBLESHOOTING GUIDE Appendix 1.NO POWER Check R801(10W,1) L801 C803 R801 C802 D804 R862 FB01 C818 R822 C819 D801 125V 5A Check F801(125V/5A) R813 R814 +133V L805 C820 T801 C814 TSM-5345B9 Check Voltage C813 +133V R807 Check D807 voltage L807 C804 +45V C817 +12V...

  • Page 59: No Picture

    TROUBLESHOOTING GUIDE Appendix 2.NO PICTURE NG : Go to the figure (c) check the waveform of I501 #61 OK : Go to the figure (d) Check the VOLTAGE U101 TUNER CVBS Composite Video T-DATA T-CLOCK Check clock/data signal I501 I701 VDP3130Y MICOM X701...

  • Page 60: No Sound

    TROUBLESHOOTING GUIDE Appendix 3. NO SOUND NG : Go to the figure (e) Check MSP output data signal of I601 #28, #29 OK : Go to the figure (f) U101 TUNER SIF OUT Check T- CLOCK T-DATA X601 the crystal 18.432MHz I601 I701...

  • Page 61: Ch Don't Stop

    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 (g) Check 5V/33V LINE Check Composite Video Signal U101 TUNER CVBS T-DATA T-CLOCK Check T-SDA/SCL I701...

  • Page 62: No Color

    TROUBLESHOOTING GUIDE Appendix 5. NO COLOR Check the crystal Check CVBS Waveform X501 Vsup 5V I501 VDP3130Y Vsup 5V R OUT G OUT Vsup 3.3V B OUT Check the Voltage Check R/G/B signal 6. NO VERTICAL DEFLECTION X501 Check the Voltage(27V) I501 I301 Vcc 27V VDP3130Y...

  • Page 63: No On-Screen Display

    TROUBLESHOOTING GUIDE Appendix 7. NO ON-SCREEN DISPLAY Check the signal(60Hz) Check data/clock signal V. SYNC H. SYNC Check I701 I501 the signal(15.73Hz) MICOM VDP3130Y OSD R OSD G OSD B BLANK Check OSD R/G/B/BLANK signal X701 ST-BY 5V Check If OSD doesn’t operate, the crystal I701 replace new product 8.
  • Page 64 PRINTED DATE : Mar. 2003...

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