Philips 55PFL4909 - Page 16

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4-4 PL14.26-A_DC

[4] Power Supply CBA

(S-9)

[5] Digital Main CBA Unit

(S-8)

Jack Holder

[TYPE A] [TYPE B]

(S-9)

Fig. D2

Main Page

Contents1
Service Manual1
Important Safety Notice2
Table of Contents3
Specifications4
- Safety Precautions for LCD TV Circuit5
- Leakage Current Hot Check5
Important Safety Precautions5
- Design Alteration Warning6
- Product Safety Notice6
- Hot Chassis Warning6
- Precautions During Servicing7
- Safety Check after Servicing8
- Clearance Distance8
- Ratings for Selected Area8
- Leakage Current Test8
- Circuit Board Indications9
- How to Remove / Install Flat Pack-IC9
- Pb (Lead) Free Solder9
Standard Notes for Servicing9
- Installation11
- Instructions for Handling Semi-Conductors12
- Ground for Human Body12
- Ground for Workbench12
- Screw Torque Specification13
- Disassembly Flowchart13
Cabinet Disassembly Instructions13
- Important Precautions Concerning the LCD Panel Assembly14
- TV Cable Wiring Diagram19
- Purity Check Mode21
- How to Set up the Service Mode21
- Test Equipment Required21
Electrical Adjustment Instructions [TYPE A]21
White Balance Adjustment22
[Type B]24
How to Initialize the Lcd Tv27
Firmware Update Procedure28
Firmware Renewal Mode [TYPE A]28
User Upgrade29
[Type B]29
- Factory Upgrade (Firmware Upgrade/Flash Upgrade)30
- The Power Cannot be Turned on31
- The Fuse Blows out31
- When the Output Voltage Fluctuates31
Troubleshooting31
- P-ON+21V Is Not Output32
- AMP+13V Is Not Output32
- AL+3.3V Is Not Output32
- Picture Does Not Appear Normally33
- No Operation Is Possible from the Remote Control Unit33
- The Key Operation Is Not Functioning33
- Audio Is Not Output Normally34
- System Control Block Diagram35
Block Diagrams [TYPE A]35
- Video/Audio Block Diagram36
- Digital Signal Process Block Diagram37
- LED Backlight Drive Block Diagram38
- Power Supply Block Diagram39
[Type B]40
Standard Notes45
Schematic Diagrams / Cba and Test Points45
- How to Read Converged Lines46
- Test Point Information46
- Power Supply 1 Schematic Diagram47
- Digital Main 2 Schematic Diagram [TYPE A]50
- Digital Main 3 Schematic Diagram [TYPE A]51
- Function Schematic Diagram61
- IR Sensor Schematic Diagram62
- Power Supply CBA Top View63
- Power Supply CBA Bottom View64
Wiring Diagrams [TYPE A]65
[Type B]66
Exploded Views67
Mechanical Parts70
Parts List70
- Electrical Parts71
- Power Supply Cba71
- Digital Main Cba Unit71
- Msw Assembly71
Revision History80

Philips 55PFL4909 - Page 16

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