Sony KP-48V75 - 48" Color Rear Video Projector, Service Manual

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KP-48V75/53V75/61V75
RM-Y903 RM-Y903 RM-Y903
TABLE OF CONTENTS
Section Title Page
1. GENERAL
Step 1 : Installing the projection TV ................................................... 5
Step 2 : Hook up .................................................................................. 5
Step 3 : Setting up the remote control ............................................... 12
Step 4 : Setting up the projection TV automatically (AUTO SET UP) .. 13
Changing the menu larguage ............................................................. 15
Watching the TV ................................................................................ 15
Watching tow programs at one time-PIP/P&P(Twin View™)/ CH INDEX . 16
Freezing the picture (FREEZE) ......................................................... 17
Adjusting the picture (VIDEO) ......................................................... 17
Adjusting the color temperature (TRINITONE) ............................... 18
Selecting the video mode (VIDEO) .................................................. 18
Adjusting the sound (AUDIO) .......................................................... 18
Using audio effect (EFFECT) ........................................................... 19
Selecting stereo or bilingual programs (MTS) .................................. 19
Setting the speaker switch (SPEAKER) ............................................ 20
Setting audio out (AUDIO OUT) ...................................................... 20
Setting daylight saving time (DAYLIGHT SAVING) ...................... 20
Setting the clock (CURRENT TIME SET) ....................................... 21
Setting the timer to turn the projection TV on and off (ON/OFF TIMER) ... 21
Customizing the channel names (CHANNEL CAPTION) ............... 21
Blocking out a channel (CHANNEL BLOCK) ................................. 22
Setting your favorite channels (FAVORITE CHANNEL) ................ 22
Setting video labels (VIDEO LABEL) ............................................. 23
Setting Caption Vision (CAPTION VISION) ................................... 23
Operating video equipment ............................................................... 23
Operating a cable box or DBS receiver ............................................. 25
Troubleshooting ................................................................................. 25
Index to parts and controls ................................................................ 26
2. DISASSEMBLY
2-1. Rear Board Removal ............................................................. 27
2-2. Chassis Assy Removal .......................................................... 27
2-3. Service Position ..................................................................... 27
2-4. HA Board Removal ............................................................... 28
2-5-1. Beznet Assy Removal (KP-48V75/53V75) ........................... 28
2-5-2. Screen Frame Assy Removal (KP-61V75) ............................ 28
2-6-1. Mirror Cover Assy Removal (KP-48V75/53V75) ...................... 29
2-6-2. Reflection Mirror Removal (KP-61V75) .............................. 29
Section Title Page
2-7. High-Voltage Cable Installation and Removal ...................... 29
2-8. Picture Tube Removal ........................................................... 30
2-9. Wiring drawings and Wiring layout ...................................... 31
2-10. Service stay Assy How to use and Carry Back Service stay Assy ... 32
(1) Picture Tube Bracket Assy Removal ............................................. 32
(2) Setting of Service stay Assy (KP-48V75/53V75) .................. 33
(3) Install a Chassis Assy and Carry the Picture Tube Bracket ......... 33
3. SET-UP ADJUSTMENTS
........................................................ 34
4. SAFETY RELATEDP ADJUSTMENTS
............................. 47
5. CIRCUIT ADJUSTMENTS
...................................................... 49
6. DIAGRAMS
6-1. Block Diagram (1) ..................................................................... 52
Block Diagram (2) ..................................................................... 55
Block Diagram (3) ..................................................................... 58
6-2. Frame Schematic Diagram ........................................................ 61
6-3. Circuit Boards Location ............................................................ 64
6-4. Printed Wiring Boards and Schematic Diagrams ...................... 64
• A(1/2) Board ............................................................................ 65
• A(2/2) Board ............................................................................ 69
• G Board ................................................................................... 74
• PD Board ................................................................................. 82
• CR, CG, CB Boards ................................................................ 89
• HA, U Boards .......................................................................... 93
• Z Board .................................................................................... 95
6-5. Semiconductors ......................................................................... 98
7. EXPLODED VIEWS
7-1. Cover (KP-48V75/53V75) ...................................................... 100
7-2. Cover (KP-61V75) .................................................................. 101
7-3. Chassis ..................................................................................... 102
7-4. Picture Tube .............................................................................. 103
8. ELECTRICAL PARTS LIST
................................................. 104
(CAUTION)
SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND
THE ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR
CARBON PAINTED ON THE CRT, AFTER REMOVING THE AN-
ODE.
WARNING!!
AN ISOLATION TRANSFORMER SHOULD BE USED DURING
ANY SERVICE TO AVOID POSSIBLE SHOCK HAZARD, BE-
CAUSE OF LIVE CHASSIS.
THE CHASSIS OF THIS RECElVER IS DIRECTLY CONNECT-
ED TO THE AC POWER LINE.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK ! ON
THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE
PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE
THESECOMPONENTS WITH SONY PARTS WHOSE PART NUM-
BERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLE-
MENTS PUBLISHED BY SONY. CIRCUIT ADJUSTMENTS THAT
ARE CRITICAL TO SAFEOPERATION ARE IDENTIFIED IN THIS
MANUAL. FOLLOW THESE PROCEDURES WHENEVER CRIT-
ICAL COMPONENTS ARE REPLACED OR IMPROPER OPER-
ATION IS SUSPECTED.
(ATTENTION)
A P R E S AVO I R D E C O N N E C T E L E C A P D E L’ A N O D E ,
COURTCIRCUITER L’ANODE DU TUBE CATHODIQUE ET CE-
LUI DE L’ANODE DU CAP AU CHASSIS METALLIQUE DE
L’APPAREIL, OU AU COUCHE DE CARBONE PEINTE SUR LE
TUBE CATHODIQUE OU AU BLINDAGE DU TUBE CATHOD-
IQUE.
ATTENTION!!
AFIN D’EVITER TOUT RISQUE DELECTROCUTION PROVE-
NANT D’UN CHÁSSIS SOUS TENSION, UN TRANSFORMATEUR
D’ISOLEMENT DOIT ETRE UTILISÉ LORS DE TOUT DEPAN-
NAGE.
LE CHÁSSIS DE CE RECEPTEUR EST DIRECTEMENT RAC-
CORDÉ Á L’ALIMENTATION SECTEUR.
ATTENTION AUX COMPOSANTS RELATIFS ÁLA
SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE TRAME ET PAR UNE
MAPQUE
! SUR LES SCHÉMAS DE PRINCIPE, LES VUES EX-
PLOSÉES ET LES LISTES DE PIECES CONT D’UNEIMPORTANCE
CRITIQUE POUR LA SÉCURITÉ DU FONCTIONNEMENT. NE
LES REMPLACER QUE PAR DES COMPOSANTS SONY DONT
LE NUMÉRO DE PIÉCE EST INDIQUÉ DANS LE PRÉSENT
MANUEL OU DANS DES SUPPLÉMENTS PUBLIÉS PAR SONY.
LES RÉGLAGES DE CIRCUIT DONT L’IMPORTANCE EST CRI-
TIQUE POUR LA SÉCURITÉ DU FONCTIONNEMENT SONT
IDENTIFIES DANS LE PRÉSENT MANUEL. SUIVRE CES
PROCÉDURES LORS DE CHAQUE REMPLACEMENT DE COM-
POSANTS CRITIQUES, OU LORSQU’UN MAUVAIS FONCTION-
NEMENT EST SUSPECTÉ.