Table Of Contents - Sony FWD-42PX2 Service Manual

1. Service Overview
1-1. Appearance Figure .......................................................... 1-1
1-2. Board Location ............................................................... 1-1
1-3. Disassembly .................................................................... 1-2
1-3-1. Rear Cabinet Assembly ......................................... 1-2
1-3-2. Bezel Assembly/H1 Board/H2 Board ................... 1-3
1-3-3. A Board/L Board/I Board ...................................... 1-4
1-3-4. G Board/TEMP Board ........................................... 1-5
1-3-5. T-R Board/T-L Board ............................................ 1-5
1-3-6. A Block Assembly/DC Fan ................................... 1-6
1-3-7. Y-DRV Board/Y-SUS Board ................................ 1-7
1-3-8. CTRL Board .......................................................... 1-8
1-3-9. Z-SUS Board ......................................................... 1-8
1-3-10. XL Board/XR Board ............................................. 1-9
1-3-11. Plasma Display Panel .......................................... 1-10
1-4. Service Position ............................................................ 1-11
1-4-1. Service Position of A Board ................................ 1-11
1-5. Packing of the Plasma Display Panel ........................... 1-12
1-6. Label Information of Module ....................................... 1-13
1-6-1. Warning/Caution Label ....................................... 1-13
1-6-2. Voltage Label ...................................................... 1-14
1-6-3. Identification Label ............................................. 1-14
1-6-4. Safety Approval Label ........................................ 1-14
1-6-5. Serial No. of Frame Label ................................... 1-14
1-7. Warning on Power Connection ..................................... 1-15
1-8. Unleaded Solder ............................................................ 1-15
2. Service Mode and Adjustment
2-1. Service Mode .................................................................. 2-1
2-1-1. Service Mode Startup Procedure ........................... 2-1
2-1-2. Configuration ........................................................ 2-1
2-1-3. Description of Main Items ..................................... 2-2
2-2. White Balance Adjustment ............................................. 2-3
2-2-1. Initialization .......................................................... 2-3
2-2-2. AD Calibration ...................................................... 2-3
2-2-3. 1PC Signal ............................................................. 2-3
2-2-4. White Balance ....................................................... 2-3
2-3. Va/Vs Voltage Adjustment ............................................. 2-4
2-3-1. Required Equipment .............................................. 2-4
2-3-2. Vs Voltage Adjustment ......................................... 2-4
2-3-3. Va Voltage Adjustment ......................................... 2-4
FWD-42PX2

Table of Contents

2-4. Vsc/_Vy Voltage Adjustment ........................................ 2-5
2-4-1.
2-4-2.
2-4-3.
2-5. Flash Down-loading Method .......................................... 2-6
2-6. DEVICEINFO Section ................................................... 2-7
3. Troubleshooting
3-1. Self Diagnosis Operation ................................................ 3-1
3-2. Check Point ..................................................................... 3-1
3-2-1.
3-2-2.
3-3. Image Trouble ................................................................. 3-3
3-4. Power (G Board) Trouble ............................................... 3-4
3-5. Remote Control Trouble ................................................. 3-5
3-6. Sound Trouble ................................................................ 3-5
3-7. Other Trouble .................................................................. 3-6
3-8. Plasma Display Panel ..................................................... 3-7
3-8-1.
3-8-2.
3-8-3.
3-8-4.
4. Spare Parts
4-1. Notes on Repair Parts ..................................................... 4-1
4-2. Exploded Views .............................................................. 4-2
5. Block Diagram
5-1. Circuit Description .......................................................... 5-1
Required Equipment .............................................. 2-5
Vsc Voltage Adjustment ....................................... 2-5
_Vy Voltage Adjustment ...................................... 2-5
A Board ................................................................. 3-1
Plasma Display Panel ............................................ 3-2
Image is not displayed ........................................... 3-7
Vertical Image is abnormal ................................... 3-8
Horizontal Image is abnormal ............................... 3-9
Mal Discharge ....................................................... 3-9
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