Philips 15LCD35 Service Manual
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Philips 15LCD35 Service Manual

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  • Page 2: Important Safety Notice

    IMPORTANT SAFETY NOTICE Proper service and repair is important to the safe, reliable operation of all Philips Consumer Electronics Company** Equipment. The service procedures recommended by Philips and described in this service manual are effective methods of performing service operations. Some of these service operations require the use of tools specially designed for the purpose.

  • Page 3: Fire And Shock Hazard

    FIRE AND SHOCK HAZARD 1. Be sure all components are positioned in such a way as to avoid the possibility of adjacent component shorts. This is especially important on those chassis which are transported to and from the service shop. 2.

  • Page 4: Leakage Current Cold Check

    LEAKAGE CURRENT COLD CHECK 1. Unplug the ac line cord and connect a jumper between the two prongs of the plug. 2. Turn on the power switch. 3. Measure the resistance value between the jumpered ac plug and all exposed cabinet parts of the receiver, such as screw heads, antennas, and control shafts.

  • Page 6: Tv Safety Notes

    TV SAFETY NOTES SAFETY CHECKS After the original service problem has been corrected, a complete safety check should be made. Be sure to check over the entire set, not just the areas where you have worked. Some previous servicer may have left an unsafe condition, which could be unknowingly passed on to your customer.

  • Page 7: Picture Tube Replacement

    The use of a substitute part which does not have the same safety characteristics as the Philips recommended replacement part shown in this service manual may create shock, fire, or other hazards.

  • Page 8: Prevention Of Electrostatic Discharge (Esd)

    PREVENTION OF ELECTROSTATIC DISCHARGE (ESD) Some semiconductor solid state devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices, Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor "chip" components. The following techniques should be used to help reduce the incidence of component damage caused by electrostatic discharge (ESD).
  • Page 9 PRACTICAL SERVICE PRECAUTIONS IT MAKES SENSE TO AVOID EXPOSURE TO ELECTRICAL SHOCK. While some sources are expected to have a possible dangerous impact, others of quite high potential are of limited current and are sometimes held in less regard. ALWAYS RESPECT VOLTAGES. While some may not be dangerous in themselves, they can cause unexpected reactions –...
  • Page 10 GENERAL INFORMATION Manual 7631, Model 15PF992517 Introduction: Available in the first quarter of 2002, the 15PF9925 is a 15 inch LCD TV/Monitor. The technology involved is advanced and highly integrated, dedicated electronics are present. The set consists of the assemblies: •...

  • Page 11: Adjustments & Troubleshooting

    ADJUSTMENTS & TROUBLESHOOTING - Model 15PF99, Manual 7631 Notes: (1) This set uses an adapter, so connect the adapter and the set correctly before adjustment. (2) The adjustment must be performed under the correct sequence. (3) The adjustment must be performed in the circumstance of 25°+/-5C of temperature and 65+/-10% of relative humidity if there is no specific designation.

  • Page 12: Pc Input Mode Adjustment

    PC Input Mode Adjustment Required Test Equipment (1) A pattern generator being in proportion to VG819; Pattern of 64 tones (2) A remote control Preparation for Adjustment (1) Perform “Heat Run” for more than 30 minutes in white pattern. (2) Connect the signal of pattern generator with LCD TV. (3) Lean the set 45°...
  • Page 13 Position of Mode Adjustment Mode VGA-60 VGA-67 VGA-72 VGA-75 VGA-85 TEXT-70 SVGA-56 SVGA-60 SVGA-72 H_Total 1024 1056 1040 H_Display H_Blanking H_Sync H Polarity NEG. NEG. NEG. NEG. NEG. NEG. H_Bp H_Fp H-Freq[KHz] 31.469 35.0 37.861 37.5 43.269 31.469 35.156 37.879 48.077 /Clk[MHz] 25.175...
  • Page 14 TROUBLESHOOTING General Features No. Symptom Cause Check Point Soft touch doesn’t Defective speaker wire 1) Make some space between the speaker wire and function properly and inverter wire the Soft touch Board by sticking the speaker wire to the guide hole of the cabinet. 2) Arrange working state of A1.
  • Page 15 All Models (7631) - Panel Interconnect...
  • Page 16 All Models (7631) - Main Panel Schematic...
  • Page 17 All Models (7631) - Tuner Panel Schematic...
  • Page 18 All Models (7631) - Control Panel Schematic...
  • Page 19 All Models (7631) - Main PCB (Top View only)
  • Page 20 All Models (7631) - Tuner PCB (Both Views)
  • Page 21 All Models (7631) - Control PCB (Top View only)
  • Page 22 All Models (7631) - Power Supply Block...
  • Page 23 All Models (7631) - Video Signal Flow Block...
  • Page 24 All Models (7631) - Audio Signal Flow Block...
  • Page 26 15LCD35/17 - Manual no. 7631 C318 CAPACITOR, FIXED ELECTROLYTIC, 1UF S EXPLODED VIEW PARTS EXPLODED VIEW PARTS RE,SE 50V 20% FL BP(D) TP..00CE 105 3K616 C319 CAPACITOR, FIXED ELECTROLYTIC, 1UF S LCD(LIQUID CRYSTAL D, LC151X01-A3 LG RE,SE 50V 20% FL BP(D) TP.
  • Page 27 00II T32 3000C L519 FILTER(CIRC), EMC, HB-1M2012-800JT CE IC401 IC, PHILIPS, 74F08D 14P SOIC R/TP QUA RATEC 2012MM R/TP..0621 0TC E001E D 2-INPUT AND GATE LCD TV..
  • Page 28 15LCD35/17 (continued) LA504 FILTER(CIRC), EMC, BK3216 4S600 TAIYO Q503 TRANSISTOR, BIPOLARS, CHIP 2SA1504S(A YUDEN 3.2X1.6X0.8MM R/TP ..0621 0VC 0004A SY) BK KEC - - ...
  • Page 29 15PF9925/17S - Manual no. 7631 C318 CAPACITOR, FIXED ELECTROLYTIC, 1UF S EXPLODED VIEW PARTS EXPLODED VIEW PARTS RE,SE 50V 20% FL BP(D) TP..00CE 105 3K616 C319 CAPACITOR, FIXED ELECTROLYTIC, 1UF S LCD(LIQUID CRYSTAL D, LC151X01-A3 LG RE,SE 50V 20% FL BP(D) TP.
  • Page 30 00II T32 3000C L519 FILTER(CIRC), EMC, HB-1M2012-800JT CE IC401 IC, PHILIPS, 74F08D 14P SOIC R/TP QUA RATEC 2012MM R/TP..0621 0TC E001E D 2-INPUT AND GATE LCD TV..
  • Page 31 15PF9925/17S (continued) LA504 FILTER(CIRC), EMC, BK3216 4S600 TAIYO Q503 TRANSISTOR, BIPOLARS, CHIP 2SA1504S(A YUDEN 3.2X1.6X0.8MM R/TP ..0621 0VC 0004A SY) BK KEC - - ... 00TR 150 400BA LA505 FILTER(CIRC), EMC, BK3216 4S600 TAIYO...
  • Page 33 IMPORTANT SAFETY NOTICE Proper service and repair is important to the safe, reliable operation of all Philips Consumer Electronics Company** Equipment. The service procedures recommended by Philips and described in this service manual are effective methods of performing service operations. Some of these service operations require the use of tools specially designed for the purpose.
  • Page 34 FIRE AND SHOCK HAZARD 1. Be sure all components are positioned in such a way as to avoid the possibility of adjacent component shorts. This is especially important on those chassis which are transported to and from the service shop. 2.
  • Page 35 LEAKAGE CURRENT COLD CHECK 1. Unplug the ac line cord and connect a jumper between the two prongs of the plug. 2. Turn on the power switch. 3. Measure the resistance value between the jumpered ac plug and all exposed cabinet parts of the receiver, such as screw heads, antennas, and control shafts.
  • Page 37 TV SAFETY NOTES SAFETY CHECKS After the original service problem has been corrected, a complete safety check should be made. Be sure to check over the entire set, not just the areas where you have worked. Some previous servicer may have left an unsafe condition, which could be unknowingly passed on to your customer.
  • Page 38 The use of a substitute part which does not have the same safety characteristics as the Philips recommended replacement part shown in this service manual may create shock, fire, or other hazards.
  • Page 39 PREVENTION OF ELECTROSTATIC DISCHARGE (ESD) Some semiconductor solid state devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices, Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor "chip" components. The following techniques should be used to help reduce the incidence of component damage caused by electrostatic discharge (ESD).
  • Page 40 PRACTICAL SERVICE PRECAUTIONS IT MAKES SENSE TO AVOID EXPOSURE TO ELECTRICAL SHOCK. While some sources are expected to have a possible dangerous impact, others of quite high potential are of limited current and are sometimes held in less regard. ALWAYS RESPECT VOLTAGES. While some may not be dangerous in themselves, they can cause unexpected reactions –...

  • Page 41: Lcd Introduction

    General Information Manual 7632, 20PF99252 Features: 20” LCD Flat-TV • Flat and slim design • TFT LCD Screen - 640x480 pixels • Integrated TV tuner • Brightness 450cd/m2 - Contrast Ratio 400:1 • Progressive Scan • Digital Comb filter • Stereo Integrated Sound System 2x2WRMS •...

  • Page 42: Technical Specifications

    Technical specifications Screen / Picture • Visible screen size : 20" • Picture Aspect Ratio 4:3 • LCD technology :Thin Film Transistor - TFT • # pixels : 640 x 480 • Response time LCD : 25ms (typical) • Light output : 450cd/m 2 •...
  • Page 43 Connections • Audio / Video - Component video in YUV-in / YPbPr (cinch) input + audio L-R - Video CVBS in, audio L-R in(cinch) - S-Video in (Y/C) - Monitor out :Video CVBS, audio L-R (cinch) - headphone jack 3.5mm •...
  • Page 44 Adjustments and Troubleshooting Adjustments Notes This set uses an adapter, so connect the adapter and the set correctly before adjustment. The adjustment must be performed under the correct sequence. The adjustment must be performed in the circumstance of 25±5°C of temperature and 65±10% of relative humidity if there is no specific designation.
  • Page 45 Troubleshooting General Features No. Symptom Cause Check Point No screen Input error of inverter connector 1) Bend the pin legs of P802B connector -> recheck them 2) Check and repair the IC806,807 SI4925,IC801 SI786,IC803 SI4808. P502 and Pin 21 connector 1) Check and fix P503B connector being slipped out 2) Check and fix the components at P502...

  • Page 46: Iconn Control

    Options (Enhanced version only, iTV) ICONN control This menu option is normally "Off". Set this option to "On" for "ICONN"-box (Hotel TV) operation. Caution: When this option is set to "on", without an ICONN-Box connected to the monitor, normal operation is no longer possible because the RC connection is interrupted.
  • Page 47 All Models (7632) - Wiring Diagramr...
  • Page 48 All Models (7632) - Main Panel Schematic...
  • Page 49 All Models (7632) - MX Control Panel Schematic...
  • Page 50 All Models (7632) - Tuner Panel Schematic...
  • Page 51 All Models (7632) - Customer Control Panel Schematic...
  • Page 52 All Models (7632) - Main PCB (Top View)
  • Page 53 All Models (7632) - Main PCB (Bottom View)
  • Page 54 All Models (7632) - MX Control Panel PCB (Top View)
  • Page 55 All Models (7632) - MX Control Panel PCB (Bottom View)
  • Page 56 All Models (7632) - Tuner PCB (Both Views)
  • Page 57 All Models (7632) - Control PCB (Top View only)
  • Page 59 20FT0010/35 - Manual no. 7632 C244 CAPACITOR, FIXED ELECTROLYTIC, 100UF S EXPLODED VIEW PARTS EXPLODED VIEW PARTS TD 16V 20% ....00CE 107 DF618 LCD (LIQUID CRYSTAL DISPLAY, LC201V1-A C248 CAPACITOR, FIXED CERAMIC, 220000PF 201 2 16V 10%.
  • Page 60 20FT0010/35 (continued) C804 CAPACITOR, FIXED ELECTROLYTIC, 470UF K D801 LED, SM3411(DL-11S2GN1) BK Y-GREEN - . 00DL 112 100AB ME TYPE 16V 20%... . 00CE 477 BF618 D802 LED, SR3411(DL-11S2RN1) BK RED - . . . 00DL 112 100AA C805 CAPACITOR, FIXED ELECTROLYTIC, 470UF K D804...
  • Page 61 20FT0010/35 (continued) L210 FILTER (CIRC), EMC, HH-1M3216-501 CERA LA813 FILTER(CIRC), EMC, BK3216 4S600 TAIYOY TEC 3216MM ....0621 0TC E001G UDEN 3.2X1.6X0.8MM ..0621 0VC 0004A L211 FILTER (CIRC), EMC, HB-1S2012-080JT CE LA814...
  • Page 62 20FT0010/35 (continued) R1003 RESISTOR, FIXED CARBON FILM, 1.2K OHM 1/6W 5%....00RD 120 1F609 R1004 RESISTOR, FIXED CARBON FILM, 330 OHM 1 /6W 5% ....00RD 330 0F609 R1006 RESISTOR, FIXED CARBON FILM, 4.7K OHM 1/6W 5%.
  • Page 63 20FT9955/35 - Manual no. 7632 C244 CAPACITOR, FIXED ELECTROLYTIC, 100UF S EXPLODED VIEW PARTS EXPLODED VIEW PARTS TD 16V 20% ....00CE 107 DF618 LCD (LIQUID CRYSTAL DISPLAY, LC201V1-A C248 CAPACITOR, FIXED CERAMIC, 220000PF 201 2 16V 10%.
  • Page 64 20FT9955/35 (continued) C804 CAPACITOR, FIXED ELECTROLYTIC, 470UF K D801 LED, SM3411(DL-11S2GN1) BK Y-GREEN - . 00DL 112 100AB ME TYPE 16V 20%... . 00CE 477 BF618 D802 LED, SR3411(DL-11S2RN1) BK RED - . . . 00DL 112 100AA C805 CAPACITOR, FIXED ELECTROLYTIC, 470UF K D804...
  • Page 65 20FT9955/35 (continued) L210 FILTER (CIRC), EMC, HH-1M3216-501 CERA LA813 FILTER(CIRC), EMC, BK3216 4S600 TAIYOY TEC 3216MM ....0621 0TC E001G UDEN 3.2X1.6X0.8MM ..0621 0VC 0004A L211 FILTER (CIRC), EMC, HB-1S2012-080JT CE LA814...
  • Page 66 20FT9955/35 (continued) R1003 RESISTOR, FIXED CARBON FILM, 1.2K OHM 1/6W 5%....00RD 120 1F609 R1004 RESISTOR, FIXED CARBON FILM, 330 OHM 1 /6W 5% ....00RD 330 0F609 R1006 RESISTOR, FIXED CARBON FILM, 4.7K OHM 1/6W 5%.
  • Page 67 20FT9975/35 - Manual no. 7632 C244 CAPACITOR, FIXED ELECTROLYTIC, 100UF S EXPLODED VIEW PARTS EXPLODED VIEW PARTS TD 16V 20% ....00CE 107 DF618 LCD (LIQUID CRYSTAL DISPLAY, LC201V1-A C248 CAPACITOR, FIXED CERAMIC, 220000PF 201 2 16V 10%.
  • Page 68 20FT9975/35 (continued) C804 CAPACITOR, FIXED ELECTROLYTIC, 470UF K D801 LED, SM3411(DL-11S2GN1) BK Y-GREEN - . 00DL 112 100AB ME TYPE 16V 20%... . 00CE 477 BF618 D802 LED, SR3411(DL-11S2RN1) BK RED - . . . 00DL 112 100AA C805 CAPACITOR, FIXED ELECTROLYTIC, 470UF K D804...
  • Page 69 20FT9975/35 (continued) L210 FILTER (CIRC), EMC, HH-1M3216-501 CERA LA813 FILTER(CIRC), EMC, BK3216 4S600 TAIYOY TEC 3216MM ....0621 0TC E001G UDEN 3.2X1.6X0.8MM ..0621 0VC 0004A L211 FILTER (CIRC), EMC, HB-1S2012-080JT CE LA814...
  • Page 70 20FT9975/35 (continued) R1003 RESISTOR, FIXED CARBON FILM, 1.2K OHM 1/6W 5%....00RD 120 1F609 R1004 RESISTOR, FIXED CARBON FILM, 330 OHM 1 /6W 5% ....00RD 330 0F609 R1006 RESISTOR, FIXED CARBON FILM, 4.7K OHM 1/6W 5%.
  • Page 71 20LCD35/17 - Manual no. 7632 CAPACITOR, FIXED ELECTROLYTIC, 10UF ST EXPLODED VIEW PARTS EXPLODED VIEW PARTS D 16V 20%....00CE 106 DF618 LCD (LIQUID CRYSTAL DISPLAY, LC201V1-A C250 CAPACITOR, FIXED CERAMIC, 220000PF 201 2 16V 10%.
  • Page 72 20LCD35/17 (continued) C807 CAPACITOR, FIXED ELECTROLYTIC, 220UF K D806 DIODE, SWITCHING, KDS181 TP KEC - 85V ME TYPE 25V 20%... . 00CE 227 BH618 - - 300MA....00DD 181 009AB C812 CAPACITOR, FIXED ELECTROLYTIC, 220UF K D807...
  • Page 73 20LCD35/17 (continued) L214 INDUCTOR, AXIAL LEAD, 3.3UH 10% A 2.3 LD1001 LED, LED ASSY (MC51A, M-8.9) ..0000 162 -002B X 3.4 TA52 - ... . . 00LA 033 1K119 MJ201 JACK ASSY, PJ6054P PARK ELEC R .
  • Page 74 20LCD35/17 (continued) R1007 RESISTOR, FIXED CARBON FILM, 4.7K OHM 1/6W 5%....00RD 470 1F609 R1008 RESISTOR, FIXED CARBON FILM, 4.7K OHM 1/6W 5%....00RD 470 1F609 R1009 RESISTOR, FIXED CARBON FILM, 4.7K OHM 1/6W 5%.
  • Page 75 20PF9925/17S - Manual no. 7632 C244 CAPACITOR, FIXED ELECTROLYTIC, 100UF S EXPLODED VIEW PARTS EXPLODED VIEW PARTS TD 16V 20% ....00CE 107 DF618 LCD (LIQUID CRYSTAL DISPLAY, LC201V1-A C248 CAPACITOR, FIXED CERAMIC, 220000PF 201 2 16V 10%.
  • Page 76 20PF9925/17S (continued) C804 CAPACITOR, FIXED ELECTROLYTIC, 470UF K D801 LED, SM3411(DL-11S2GN1) BK Y-GREEN - . 00DL 112 100AB ME TYPE 16V 20%... . 00CE 477 BF618 D802 LED, SR3411(DL-11S2RN1) BK RED - . . . 00DL 112 100AA C805 CAPACITOR, FIXED ELECTROLYTIC, 470UF K D804...
  • Page 77 20PF9925/17S (continued) L210 FILTER (CIRC), EMC, HH-1M3216-501 CERA LA813 FILTER(CIRC), EMC, BK3216 4S600 TAIYOY TEC 3216MM ....0621 0TC E001G UDEN 3.2X1.6X0.8MM ..0621 0VC 0004A L211 FILTER (CIRC), EMC, HB-1S2012-080JT CE LA814...
  • Page 78 20PF9925/17S (continued) R1003 RESISTOR, FIXED CARBON FILM, 1.2K OHM 1/6W 5%....00RD 120 1F609 R1004 RESISTOR, FIXED CARBON FILM, 330 OHM 1 /6W 5% ....00RD 330 0F609 R1006 RESISTOR, FIXED CARBON FILM, 4.7K OHM 1/6W 5%.

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