Table Of Contents - Sony VPH-G90U Service Manual

1. OPERATING INSTRUCTIONS
Operation Instruction ............................................................................................... 1-1
Installation Manual for Dealers ............................................................................. 1-33
2. SERVICE INFORMATION
2-1. CIRCUIT BOARDS LOCATION ................................................................. 2-1
2-1-1. Location 1 ............................................................................................... 2-1
2-1-2. Location 2 ............................................................................................... 2-1
2-1-3. Location 3 ............................................................................................... 2-2
2-2. DISASSEMBLY ............................................................................................ 2-3
2-2-1. Hood Removal ........................................................................................ 2-3
2-2-2. Cover Removal ....................................................................................... 2-4
2-2-3. Opening ED Block ................................................................................. 2-5
2-2-4. DC Board Removal ................................................................................ 2-5
2-2-5. EC Board Removal ................................................................................. 2-6
2-2-6. ED Board Removal ................................................................................. 2-7
2-2-7. E Board Removal ................................................................................... 2-7
2-2-8. Remote Commander Removal ............................................................... 2-8
2-2-9. CB, CG and CR Blocks Removal ........................................................... 2-9
2-2-10. DA, DB, DD, DE and DF Boards Removal ......................................... 2-10
2-2-11. EBH and EBQ Boards Removal ........................................................... 2-10
2-2-12. HVB Block and High-voltage Cable Removal .................................... 2-11
2-2-13. DC Fan Removal .................................................................................. 2-12
2-2-14. PA and PD Boards Removal ................................................................ 2-12
2-2-15. MD Board Removal ............................................................................. 2-13
2-2-16. HVF Block Removal ............................................................................ 2-14
2-2-17. BA and YA Boards Removal ............................................................... 2-15
2-2-18. BC, F and ME Boards Removal ........................................................... 2-16
2-2-19. EBB, EBG, EBR and PE Boards Removal .......................................... 2-17
2-2-20. GA and GB Boards Removal ............................................................... 2-18
2-2-21. Lens Removal ....................................................................................... 2-18
2-2-22. (1) Picture Tube Removal .................................................................... 2-19
2-2-22. (2) Picture Tube Installation ................................................................. 2-20
2-2-23. MA, MB and MC Boards Removal ...................................................... 2-21
2-2-24. M Board Removel ................................................................................ 2-23
2-2-25. Extension Board ................................................................................... 2-24
2-3. ERROR CODE ............................................................................................. 2-25
2-3-1. Warning Code on 7-Segment LED ....................................................... 2-25
2-3-2. Protector Code on 7-Segment LED ...................................................... 2-26
2-3-3. Error Code on 7-Segment LED ............................................................ 2-27
2-4. MEMORY ACCESS SYSTEM ................................................................... 2-28
2-4-1. Memory Structure ................................................................................. 2-28
2-4-2. Various Memory Data .......................................................................... 2-29
2-5. MEMORY DATA RESET ........................................................................... 2-50
VPH-G90E/G90U/G90M

TABLE OF CONTENTS

1