Sony VPH-G90U User manual

VPH-G90U US/CND SCC-K81D-A
VPH-G90E AEP SCC-K82E-A
VPH-G90M E SCC-N96A-A
RM-PJ1001 World
PSS-90 World
IFB-G90E AEP
SERVICE MANUAL
MULTISCAN PROJECTOR
MODEL DEST. CHASSIS NO.
…………… ……… …………………
MODEL DEST.

WARNING!!
ANISOLATIONTRANSFORMERSHOULDBEUSEDDURINGANY
SERVICETO AVOID POSSIBLE SHOCK HAZARD, BECAUSE OF
LIVE CHASSIS.
THE CHASSIS OFTHIS RECEIVER IS DIRECTLY CONNECTEDTO
THE AC POWER LINE.
SAFETY-RELATED COMPONENTWARNING!!
COMPONENTS IDENTIFIED BY MARK !!
!!
!ON THE SCHEMATIC
DIAGRAMS, EXPLODED VIEWS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY. CIRCUIT ADJUSTMENTS THAT ARE
CRITICAL TO SAFE OPERATION ARE IDENTIFIED IN THIS
MANUAL.FOLLOWTHESE PROCEDURESWHENEVER CRITICAL
COMPONENTS ARE REPLACED OR IMPROPER OPERATION IS
SUSPECTED.
ATTENTION!!
AFIN D’EVITERTOUT RISQUE D’ELECTROCUTION PROVENANT
D’UN CHÁSSIS SOUS TENSION, UN TRANSFORMATEUR
D’ISOLEMENTDOITETREUTILISÉLORS DE TOUTDÉPANNAGE.
LE CHÁSSIS DE CE RÉCEPTEUR EST DIRECTEMENT
RACCORDÉ À L’ALIMENTATION SECTEUR.
ATTENTION AUX COMPOSANTS RELATIFS À LA
SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÈS PAR UNE TRAME ET PAR UNE
MARPUE !!
!!
!SUR LES SCHÉMAS DE PRINCIPE, LES VUES
EXPLOSÉES ET LES LISTES DE PIECES CONT D’UNE
IMPORTANCE CRITIQUE PUR LA SÉCURITÉ DU
FONCTIONNEMENT. NE LES REMPLACER QUE PAR DES
COMPOSANTSSONYDONTLE NUMÉRO DEPIÉCEESTINDIQUÉ
DANS LE PRÉSENT MANUEL OU DANS DES SUPPLÉMENTS
PUBLIÉS PAR SONY. LES RÉGLAGES DE CIRCUIT DONT
L’IMPORTANCE EST CRITIQUE POUR LA SÉCURITÉ DU
FONCTIONNEMENT SONT IDENTIFIES DANS LE PRÉSENT
MANUEL. SUIVRE CES PROCÉDURES LORS DE CHAQUE
REMPLACEMENT DE COMPOSANTS CRITIQUES, OU
LORSQU’UN MAUVAIS FONCTIONNEMENT EST SUSPECTÉ.
!WARNING
This manual is intended for qualified service personnel
only.
To reduce the risk of electric shock, fire or injury, do not
perform any servicing other than that contained in the
operating instructions unless you are qualified to do so.
Refer all servicing to qualified service personnel.

1
VPH-G90E/G90U/G90M
TABLE OF CONTENTS
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

2VPH-G90E/G90U/G90M
3. SET-UP ADJUSTMENTS
3-1. PRECAUTIONS UPON ADJUSTMENT .....................................................3-1
3-2. ATTACHING THE NECK ASSEMBLY......................................................3-1
3-3. ADJUSTING CONDITIONS.........................................................................3-1
3-3-1. Projecting System ...................................................................................3-1
3-3-2. CRT Convergence Angle Check ............................................................3-2
3-4. FOCUS ADJUSTMENT ................................................................................3-3
3-4-1. Preparations ............................................................................................3-3
3-4-2. Focus Rough Adjustment .......................................................................3-3
3-4-3. DY Angle Adjustment ............................................................................3-4
3-4-4. MG FOCUS Coil Angle Adjustment .....................................................3-5
3-4-5. 64 kHz Signal Registration Rough Adjustment .....................................3-6
3-4-6. RED/GREEN/BLUE Focus Adjustment ................................................3-7
3-4-7. Zenith Angle Adjustment .......................................................................3-8
3-4-8. HWC (H Width Coil) Adjustment..........................................................3-9
3-4-9. Video Size Adjustment...........................................................................3-9
3-4-10. MG FOCUS Adjustment for 31.5 kHz Signal......................................3-10
3-4-11. VIDEO Block MG FOCUS Adjustment ..............................................3-11
3-4-12. MG FOCUS Adjustment for 64 kHz and 106 kHzSignals...................3-11
3-4-13. Adjustment of Other Frequencies.........................................................3-11
3-5. REGISTRATION ADJUSTMENT..............................................................3-12
3-5-1. INPUT MEMORY No. 0 Adjustment..................................................3-12
3-5-2. INPUT MEMORY No. 3 Adjustment..................................................3-13
3-5-3. INPUT MEMORY No. 5 Adjustment..................................................3-13
3-5-4. INPUT MEMORY No. 8 Adjustment..................................................3-14
3-5-5. Horizontal/Vertical Reverse Mode Centering Adjustment ..................3-14
3-6. WHITE BALANCE ADJUSTMENT ..........................................................3-15
3-6-1. Preparations ..........................................................................................3-15
3-6-2. Color Temperature Adjustment with a Test Signal Generator .............3-16
3-6-3. Color Temperature Adjustment with No Test Signal Generator..........3-18
3-7. SIZE/SHIFT BLKG ADJUSTMENT ..........................................................3-18
3-7-1. SIZE/SHIFT/BLKG of Video/HDTV Adjustment ..............................3-18
3-7-2. Video Memory SIZE/SHIFT/BLKG Adjustments...............................3-19
3-8. HIGH VOLTAGE SCREEN DISTORTION ADJUSTMENT....................3-19
3-9. PROCEDURE AFTER COMPLETING ADJUSTMENTS ........................3-19
4. SAFETY RELATED ADJUSTMENT
4-1. PA BOARD HV REGULATOR/HV PROTECTOR ADJUSTMENT .........4-1
4-2. CRT PROTECTOR ADJUSTMENT.............................................................4-2

3
VPH-G90E/G90U/G90M
5. CIRCUIT ADJUSTMENTS
5-1. POWER BLOCK ........................................................................................... 5-1
5-1-1. DC (+) Adjustment ................................................................................ 5-1
5-1-2. +115 V Adjustment................................................................................ 5-1
5-1-3. +200 V Adjustment................................................................................ 5-1
5-1-4. Oscillating Frequency Adjustment ......................................................... 5-1
5-2. BA BOARD ADJUSTMENT ........................................................................ 5-2
5-2-1. Picture Control Adjustment .................................................................... 5-2
5-2-2. Signal Level Adjustment ........................................................................ 5-2
5-2-3. Analog Test Signal Amplitude Adjustment ...........................................5-3
5-2-4. ABL Adjustment .................................................................................... 5-3
5-3. CAR/CAG/CAB BOARDS ADJUSTMENT ................................................ 5-3
5-3-1. Preparation Before Adjustments............................................................. 5-3
5-3-2. Pedestal Level Adjustment ..................................................................... 5-3
5-3-3. CRT Protector Adjustment ..................................................................... 5-3
5-3-4. Cathode Level Adjustment ..................................................................... 5-4
5-3-5. G1 Level Adjustment ............................................................................. 5-4
5-3-6. VPS Limiter Adjustment ........................................................................ 5-5
5-4. DA/DB/DD BOARDS ADJUSTMENTS ......................................................5-5
5-4-1. F/V Voltage Adjustment (DA Board) .................................................... 5-5
5-4-2. AFC Adjustment (DA Board) ................................................................ 5-5
5-4-3. V Hold Adjustment (DA Board) ............................................................ 5-5
5-4-4. H Parabola Waveform Adjustment (DA Board) .................................... 5-6
5-4-5. H SIN Adjustment (DA Board) .............................................................. 5-6
5-4-6. H SIN xVP Waveform Adjustment (DB Board) .................................. 5-6
5-4-7. H SIN xV SIN Waveform Adjustment (DB Board) ............................. 5-7
5-4-8. HS xVS Waveform Adjustment (DB Board) ....................................... 5-7
5-4-9. HP xV SIN Waveform Adjustment (DB Board) .................................. 5-7
5-4-10. 1/2 SIN1 Waveform Adjustment (DB Board)........................................ 5-7
5-4-11. 1/2 SIN2 Waveform Adjustment (DB Board)........................................ 5-7
5-4-12. HS xVS Waveform Adjustment (DB Board) ....................................... 5-8
5-4-13. HP xVS Waveform Adjustment (DB Board) ....................................... 5-8
5-4-14. B KEY Waveform Adjustment (DB Board) .......................................... 5-8
5-4-15. T KEY Waveform Adjustment (DB Board)........................................... 5-8
5-4-16. 1/2H Switching Waveform Adjustment (DA/DB Boards)..................... 5-8
5-4-17. D/A Converter Offset Adjustment (DD Board) ..................................... 5-8
5-5. VCO OFFSET/LIMITER ADJUSTMENT.................................................... 5-9
5-6. YA BOARD REPLACEMENT ..................................................................... 5-9
5-6-1. Replacement Procedure .......................................................................... 5-9
5-6-2. Uploading Program (Emergency Mode) .............................................. 5-10
5-6-3. Creating Factory Data........................................................................... 5-10
5-6-4. Creating Service Data........................................................................... 5-11

4VPH-G90E/G90U/G90M
6. SEMICONDUCTORS
7. EXPLODED VIEWS
7-1. HOOD AND COVER BLOCK......................................................................7-2
7-2. ED BLOCK ....................................................................................................7-4
7-3. HVF BLOCK .................................................................................................7-6
7-4. CHASSIS BLOCK 1 ......................................................................................7-7
7-5. REAR BLOCK ...............................................................................................7-8
7-6. PICTURE TUBE BLOCK ...........................................................................7-10
7-7. CHASSIS BLOCK 2 ....................................................................................7-12
7-8. BASE BLOCK .............................................................................................7-18
8. ELECTRICAL PARTS LIST
Note:
IFB-G90E corresponds to the BD BOARD.
9. BLOCK DIAGRAMS
BA (1/3) ...............................................................................................................9-2
BA (2/3) ...............................................................................................................9-3
BD (Except VPH-G90E)......................................................................................9-3
BA (3/3) ...............................................................................................................9-4
BB ........................................................................................................................9-5
BC ........................................................................................................................9-6
YA (1/4) ...............................................................................................................9-7
YA (2/4) ...............................................................................................................9-8
YA (3/4) ...............................................................................................................9-9
YB ........................................................................................................................9-9
YA (4/4) .............................................................................................................9-10
DA ......................................................................................................................9-11
DB ......................................................................................................................9-12
DC ......................................................................................................................9-13
NA ......................................................................................................................9-13
DD (1/2) .............................................................................................................9-14
DD (2/2) .............................................................................................................9-15
DE (1/2)..............................................................................................................9-16
DE (2/2)..............................................................................................................9-17
DF.......................................................................................................................9-18
F .........................................................................................................................9-19
GA ......................................................................................................................9-19
GAA ...................................................................................................................9-19
GB ......................................................................................................................9-19
GBA ...................................................................................................................9-19
GBB ...................................................................................................................9-19
GC ......................................................................................................................9-19

5
VPH-G90E/G90U/G90M
L ......................................................................................................................... 9-19
ME...................................................................................................................... 9-19
E ......................................................................................................................... 9-20
EA ...................................................................................................................... 9-20
ED ...................................................................................................................... 9-20
EBH.................................................................................................................... 9-21
EBQ.................................................................................................................... 9-21
EBR .................................................................................................................... 9-22
EBG.................................................................................................................... 9-22
EBB .................................................................................................................... 9-22
PA....................................................................................................................... 9-23
PB ....................................................................................................................... 9-23
MD ..................................................................................................................... 9-24
NB ...................................................................................................................... 9-24
PD....................................................................................................................... 9-24
PE ....................................................................................................................... 9-25
CAR ................................................................................................................... 9-26
CAG ................................................................................................................... 9-26
CAB ................................................................................................................... 9-26
CBR.................................................................................................................... 9-26
CBG ................................................................................................................... 9-26
CBB.................................................................................................................... 9-26
CDR ................................................................................................................... 9-26
CDG ................................................................................................................... 9-26
CDB ................................................................................................................... 9-26
10. DIAGRAMS
10-1.FRAME SCHEMATIC DIAGRAMS .......................................................... 10-2
10-2.SCHEMATIC DIAGRAMS/PRINTED WIRING BOARDS ................... 10-13
SCHEMATIC DIAGRAMS
BD .................................................................................................................... 10-13
BA .................................................................................................................... 10-19
BB .................................................................................................................... 10-40
BC .................................................................................................................... 10-47
YA .................................................................................................................... 10-52
YB .................................................................................................................... 10-63
DA .................................................................................................................... 10-67
DB .................................................................................................................... 10-73
NA .................................................................................................................... 10-78
DC .................................................................................................................... 10-79
DD .................................................................................................................... 10-83
DE .................................................................................................................... 10-89
DF..................................................................................................................... 10-95
L ....................................................................................................................... 10-99
E ..................................................................................................................... 10-103
ED .................................................................................................................. 10-105
EA .................................................................................................................. 10-107
PA................................................................................................................... 10-110

6VPH-G90E/G90U/G90M
PB...................................................................................................................10-113
PD...................................................................................................................10-115
NB ..................................................................................................................10-115
PE ...................................................................................................................10-117
EBA................................................................................................................10-119
EBC ................................................................................................................10-119
EBB ................................................................................................................10-121
EBG................................................................................................................10-123
EBR ................................................................................................................10-125
EBH................................................................................................................10-127
EBQ................................................................................................................10-129
CAB ...............................................................................................................10-132
CBB................................................................................................................10-135
CDB ...............................................................................................................10-137
CAG ...............................................................................................................10-140
CBG ...............................................................................................................10-143
CDG ...............................................................................................................10-145
CAR ...............................................................................................................10-148
CBR................................................................................................................10-151
CDR ...............................................................................................................10-153
F .....................................................................................................................10-155
GA ..................................................................................................................10-158
GAA ...............................................................................................................10-159
GB ..................................................................................................................10-162
GBA ...............................................................................................................10-165
GBB ...............................................................................................................10-167
GC ..................................................................................................................10-169
M ....................................................................................................................10-172
MA .................................................................................................................10-176
MB .................................................................................................................10-178
MC .................................................................................................................10-179
MD .................................................................................................................10-180
EC...................................................................................................................10-181
ME..................................................................................................................10-182
PRINTED WIRING BOARDS
BD ....................................................................................................................10-13
BA ....................................................................................................................10-14
BB ....................................................................................................................10-39
BC ....................................................................................................................10-46
YA ....................................................................................................................10-48
YB ....................................................................................................................10-63
DA ....................................................................................................................10-64
DB ....................................................................................................................10-70
DC ....................................................................................................................10-76
NA ....................................................................................................................10-78
DD ....................................................................................................................10-80
DE ....................................................................................................................10-86
DF.....................................................................................................................10-92
L .......................................................................................................................10-99
E .....................................................................................................................10-100

7
VPH-G90E/G90U/G90M
ED .................................................................................................................. 10-104
EA .................................................................................................................. 10-106
PA................................................................................................................... 10-108
PB ................................................................................................................... 10-113
PD................................................................................................................... 10-114
NB .................................................................................................................. 10-114
PE ................................................................................................................... 10-116
EBA................................................................................................................ 10-118
EBC ................................................................................................................ 10-118
EBB ................................................................................................................ 10-120
EBG................................................................................................................ 10-122
EBR ................................................................................................................ 10-124
EBH................................................................................................................ 10-126
EBQ................................................................................................................ 10-128
CAB ............................................................................................................... 10-130
CBB................................................................................................................ 10-135
CDB ............................................................................................................... 10-136
CAG ............................................................................................................... 10-138
CBG ............................................................................................................... 10-143
CDG ............................................................................................................... 10-144
CAR ............................................................................................................... 10-146
CBR................................................................................................................ 10-151
CDR ............................................................................................................... 10-152
F ..................................................................................................................... 10-154
GA .................................................................................................................. 10-156
GAA ............................................................................................................... 10-159
GB .................................................................................................................. 10-160
GBA ............................................................................................................... 10-164
GBB ............................................................................................................... 10-166
GC .................................................................................................................. 10-168
M .................................................................................................................... 10-170
MA ................................................................................................................. 10-175
MB ................................................................................................................. 10-178
MC ................................................................................................................. 10-179
MD ................................................................................................................. 10-180
EC................................................................................................................... 10-181
ME.................................................................................................................. 10-182