Philips 42PFL9803H Service Manual & Repair Guide
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Philips 42PFL9803H Service Manual & Repair Guide
Safety Instructions
Safety regulations require the following during a repair:
• Connect the set to the Mains/AC Power via an isolation transformer (> 800 VA).
• Replace safety components, indicated by the symbol , only by components identical to the original ones. Any other component substitution (other than original type) may increase risk of fire or electrical shock hazard.
Safety regulations require that after a repair, the set must be returned in its original condition. Pay in particular attention to the following points:
• Route the wire trees correctly and fix them with the mounted cable clamps.
• Check the insulation of the Mains/AC Power lead for external damage.
• Check the strain relief of the Mains/AC Power cord for proper function.
• Check the electrical DC resistance between the Mains/AC Power plug and the secondary side (only for sets that have
a Mains/AC Power isolated power supply):
1. Unplug the Mains/AC Power cord and connect a wire between the two pins of the Mains/AC Power plug.
2. Set the Mains/AC Power switch to the “on” position (keep the Mains/AC Power cord unplugged!).
3. Measure the resistance value between the pins of the Mains/AC Power plug and the metal shielding of the tuner or the aerial connection on the set. The reading should be between 4.5 MΩ and 12 MΩ.
4. Switch “off” the set, and remove the wire between the two pins of the Mains/AC Power plug.
• Check the cabinet for defects, to prevent touching of any inner parts by the customer.
General
•Measure the voltages and waveforms with regard to the chassis (= tuner) ground (), or hot ground (), depending on the tested area of circuitry. The voltages and waveforms shown in the diagrams are indicative. Measure them in the Service Default Mode (see chapter 5) with a colour bar signal and stereo sound (L: 3 kHz, R: 1 kHz unless stated otherwise) and picture carrier at 475.25 MHz for PAL, or 61.25 MHz for NTSC (channel 3).
• Where necessary, measure the waveforms and voltages with () and without () aerial signal. Measure the voltages in the power supply section both in normal operation ( ) and in stand-by (). These values are indicated by means of the appropriate symbols. • Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic” and the “double-D symbol”, are trademarks of Dolby Laboratories.
2.3.2 Schematic Notes
• All resistor values are in ohms, and the value multiplier is often used to indicate the decimal point location (e.g. 2K2 indicates 2.2 kΩ).
• Resistor values with no multiplier may be indicated with either an “E” or an “R” (e.g. 220E or 220R indicates 220 Ω).
• All capacitor values are given in micro-farads (μ = × 10-6), nano-farads (n = × 10-9), or pico-farads (p = × 10-12).
• Capacitor values may also use the value multiplier as the decimal point indication (e.g. 2p2 indicates 2.2 pF).
• An “asterisk” (*) indicates component usage varies. Refer to the diversity tables for the correct values.
• The correct component values are listed in the Spare Parts List. Therefore, always check this list when there is any doubt.
TABLE OF CONTENTS:
Philips 42PFL9803H Service Manual & Repair Guide
1. Technical Specifications, Connections, and Chassis
Overview 2
2. Safety Instructions, Warnings, and Notes 6
3. Directions for Use 7
4. Mechanical Instructions 8
5. Service Modes, Error Codes, and Fault Finding 15
6. Block Diagrams, Test Point Overview, and
Waveforms
Wiring Diagram 42″ (VE8 LED BL) 47
Wiring Diagram 37″ (Styling Aurea VE8) 48
Wiring Diagram 42″ (Styling Aurea VE8) 49
Block Diagram Video 50
Block Diagram Audio 51
Block Diagram Control & Clock Signals 52
SSB: Test Points (Overview Top Side) 53
I2C IC Overview 63
Supply Lines Overview 64
7. Circuit Diagrams and PWB Layouts Drawing PWB
Main Power Supply IPB 37″ Stby, MF (A1) 65 68-69
Main Power Supply IPB 37″: HV Inverter (A2) 66 68-69
Main Power Supply IPB 37″: DC / DC (A3) 67 68-69
LED DIM Panel: DC / DC (AB1) 70 79-80
LED DIM Panel: Video Flow – LVDS In (AB2) 71 79-80
LED DIM Panel: Video Flow – LVDS In (AB3) 72 79-80
LED DIM Panel: FPGA: Power & Control (AB4) 73 79-80
LED DIM Panel: Clock (AB5) 74 79-80
LED DIM Panel: FPGA: Led Dimming 1 (AB6) 75 79-80
LED DIM Panel: FPGA: Led Dimming 2 (AB7) 76 79-80
LED DIM Panel: Display Interfacing (AB8) 77 79-80
LED DIM Panel: SD RAM (AB9) 78 79-80
4 LED OSRAM: LED Drive (AL1) 81 84
4 LED OSRAM: DC / DC (AL2) 82 84
4 LED OSRAM: Micro Controller Block (AL3) 83 84
6 LED OSRAM: LED Drive (AL1) 85 88
8 LED Lite-On Panel: DC / DC (AL2) 86 88
6 LED OSRAM: Micro Controller Block (AL3) 87 88
8 LED Lite-On Panel: LED Drive (AL1) 89 93
8 LED Lite-On Panel: DC / DC (AL2) 90 93
8 LED Lite-On Panel: uC Block (AL3) 91 93
8 LED Lite-On Panel: LED Drive (AL4) 92 93
SSB (B01-B10) 94-146 151-160
SSB: SRP List Explanation 147
SSB: SRP List Part 1 148
SSB: SRP List Part 2 149
SSB: SRP List Part 3 150
AmbiLight Interface Panel (FA) 161 161
Fan Control (FC1) 162 163
Mains LED Top Panel (J) 164 165
Mains LED 2k8 (VE8) (J) 166 167
Light Spill Panel (L) 168 169
Temp Sensor Panel (TS1) 170 171
8. Alignments 173
9. Circuit Descriptions, Abbreviation List, and IC Data
Sheets 176
Abbreviation List 188
IC Data Sheets 191
10. Spare Parts List & CTN Overview 205
11. Revision List 205
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