Sony Trinitron KV-27EXR90, Service Manual

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TABLE OF CONTENTS
Section
Title
1. GENERAL
l-l. Location of Controls . . . . . . . . . . . . . . . . . . . . . . 4
1-2. Presetting TV Channels . . . . . . . . . . . . . . . . . . . . 5
1-3.
TV Programs . . . . . . . . . . . . . . . . . . . . . . 6
1-4.
Adjusting Picture and Sound Quality . . . . . . . . .
7
1-5. Using Picture-in-Picture. . . . . . . . . . . . . . . . . . . . . . 9
1-6. Using the Remote Commander . . . . . . . . . . . . . . .
11
1-7. Using the guide Function . . . . . . . . . . . . . . . . . . . . .
13
1.8.
Enjoying Other Useful Features . . . . . . . . . . . . . 19
1-9. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . .
20
2. DISASSEMBLY
2-1.
Rear Cover Removal . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2-2. and U2 Boards Removal . . . . . . . . . . . . . . . . . . . 21
2-3. Service Position . . . . . . . . . . . . . . . . . . . . . . . . . .
21
2-4. Picture Tube Removal . . . . . . . . . . . . . . . . . . . . . . 22
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3-2. Convergence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3-3.
Focus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26
3-4. G2 (Screen) and White Balance Adjustments . . . . 26
WARNING !! A T T E N T I O N ! !
A N I S O L A T I O N T R A N S F O R M E R S H O U L D B E U S E D
DURING ANY SERVICE TO AVOID POSSIBLE SHOCK
HAZARD, BECAUSE OF LIVE CHASSIS.
THE CHASSIS OF THIS RECEIVER IS DIRECTLY CON-
NECTED TO THE AC POWER LINE.
D ’ E V I T E R T O U T R I S Q U E
P R O V E N A N T D ’ U N T E N S I O N , U N
T R A N S F O R M A T E U R D ’ I S O L E M E N T E T R E
LORS DE TOUT
L E D E C E EST
ii L’ALIMENTATION SECTEUR.
S A F E T Y - R E L A T E D C O M P O N E N T W A R N I N G ! !
C O M P O N E N T S I D E N T I F I E D B Y S H A D I N G A N D M A R K
! O N T H E S C H E M A T I C D I A G R A M S , E X P L O D E D
V I E W S A N D I N T H E P A R T S L I S T A R E C R I T I C A L T O
S A F E O P E R A T I O N . REPLACE THESE COMPONENTS
WITH SONY PARTS WHOSE PART NUMBERS APPEAR
A S S H O W N I N T H I S M A N U A L O R I N S U P P L E M E N T S
P U B L I S H E D B Y S O N Y . C I R C U I T A D J U S T M E N T S
T H A T A R E C R I T I C A L T O S A F E O P E R A T I O N A R E
IDENTIFIED IN THIS MANUAL. FOLLOW THESE PRO-
CEDURES WHENEVER CRITICAL COMPONENTS ARE
REPLACED OR IMPROPER OPERATION IS SUSPECTED.
Section Title
4. SAFETY RELATED ADJUSTMENTS . . . . . . . . . . 28
5. CIRCUIT ADJUSTMENTS
5-l. Electrical Adjustment by Remote Commander . . 31
5-2. A Board Adjustments . . . . . . . . . . . . . . . . . . . . . . . 33
5-3. P Board Adjustments . . . . . . . . . . . . . . . . . 37
6. DIAGRAMS
6-1.
. . . . . . . . . . . . . . . . . . 39
6-2.
Circuit Boards Location . . . . . . . . . . . . . . . . . . . .
43
6-3. Printed Wiring Boards and
Schematic Diagrams
. . . . . . . . . . . . . . . . . . . 43
6-4. Semiconductors . . . . . . . . . . . . . . . . . . . . . . 67
7. EXPLODED VIEWS
7-1.
Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
7-2.
Picture Tube......... . . . . . . . . . . . . . . . . . . . .
8. ELECTRICAL PARTS LIST . . . . . . . . . . . . . . .
71
ATTENTION AUX COMPOSANTS LA
L E S C O M P O S A N T S I D E N T I F I E S P A R U N E T R A M E E T
PAR UNE MARQUE LES DE PRINCIPE,
L E S V U E S E T L E S D E P I E C E S
S O N T D ’ U N E I M P O R T A N C E C R I T I Q U E P O U R L A
D U F O N C T I O N N E M E N T . N E L E S
PLACER QUE PAR DES COMPOSANTS SONY DONT LE
DE EST DANS LE
MANUEL OU DANS DES SUPPLEMENTS PAR
S O N Y . L E S D E C I R C U I T D O N T
T A N C E E S T C R I T I Q U E P O U R L A D U
F O N C T I O N N E M E N T S O N T I D E N T I F I E S D A N S L E
MANUEL. CES LORS
D E C H A Q U E R E M P L A C E M E N T D E C O M P O S A N T S
CRITIQUES, OU LORSQU’UN
MENT EST