Table Of Contents - Sony KV-20V50 Service Manual

Section
1 . GENERAL
lntroducting the Sony TrinitronsColor TV ..........................
l - l .
1-2. Locating t h e Controls .........................................................
l-3. Using the ON-SCREEN Menus .........................................
l-4. Connecting Equipment
l-5. Watching T V Programs ......................................................
l-6. Using Convenient Features ...............................................
l-7. Using Closed Caption ........................................................
1-8. A d j u s t i n g Picture and S o u n d Quality .................................
Timer-Activated Functions .................................
l-9. Using the
l-1 0. Customizing t h e Screen D i s p l a y ........................................
l-l 1. Using the Pre-Programmed Remote Commander ............
l-1 2. Troubleshooting .................................................................
2 . DISASSEMBLY
2-1. Rear Cover R e m o v a l .........................................................
2-2. Service P o s i t i o n .................................................................
2-3. Picture T u b e R e m o v a l .......................................................
3 . SET-UP ADJUSTMENTS
B e a m Landing ....................................................................
3-l.
3-2. Convergence ......................................................................
3-3. Focus .................................................................................
3-4. Screen ( G 2 ) .......................................................................
Method of Setting the Service Adjustment Mode ..............
3-5.
3-6. White Balance Adjustments ...............................................
WARNING!!
AN ISOLATIONTRANSFORMER SHOULD BE USED DURING ANY
SERVICE TO AVOID POSSIBLE SHOCK HAZARD, -BECAUSE OF
LIVE CHASSIS.
THE CHASSIS OF THIS RECEIVER IS DIRECTLY CONNECTED TO
THE AC POWER LINE.
SAFETY-RELATED COMPONENT
COMPONENTS IDENTIFIED BY SHADING AND MARK A 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
CRITICAL TO SAFE OPERATION
MANUAL. FOLLOW THESE PROCEDURES WHENEVER CRITI-
CAL COMPONENTS ARE REPLACED OR IMPROPER OPERA-
TION IS SUSPECTED.

TABLE OF CONTENTS

4
4
6
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8
9
9
1 0
1 3
1 6
1 8
2 0
21
21
2 2
2 3
2 4
2 6
2 6
2 6
2 6
WARNING !!
ADJUSTMENTS THAT ARE
ARE IDENTIFIED IN THIS
4 . SAFETY RELATED ADJUSTMENTS .....................
5 . CIRCUITADJUSTMENTS
5-l. Electrical Adjustment by Remote Commander ..................
5-2. A Board Adjustments .........................................................
6. DIAGRAMS
6-i.
B l o c k Diagram ....................................................................
6-2. Circuit Boards Location ......................................................
6-3. Printed Wiring Boards and Schematic Diagrams ..............
A B o a r d ............................................................................
l
G Board.. ..........................................................................
l
U A B o a r d .........................................................................
l
l
C Board.. ..........................................................................
l
6-4. Semiconductors .................................................................
7 . EXPLODED VIEWS
7-1. Chassis ..............................................................................
7-2. Picture T u b e .......................................................................
ELECTRICAL PARTS LIST ....................................
6 .
ATTENTION!!
D ' U N C H A S S I S SOUS TENSION, UN TRANSFORMATEUR
D'ISOLEMENT DOIT ETRE UTlLlSi LORS DETOUT DlkPANNAGE.
LE CHkSlS DECE RlkCEPTEUR ESTDlRECTEMENTRACCORDtl.
A
L'ALIMENTATION SECTEUR.
A T T E N T I O N A U X C O M P O S A N T S
LES COMPOSANTS IDENTlFliS
A
MAPQUE SUR LES SCHkMAS
ET LES LISTES
I M P O R T A N C E C R I T I Q U E
FONCTIONNEMENT. NE LES
COMPOSANTSSONY DONT LE NUMkRO DE PIkE EST INDlQlJi
DANS LE PRiSENT MANUEL OU DANS DES SUPPLiMENTS
PAR SONY. LES ReGLAGES
L'IMPORTANCE EST CRITIQUE POUR LA
FONCTIONNEMENT SONT IDENTIFIES
M A N U E L . SUIVRE C E S PROCiDURES
R E M P L A C E M E N T D E C O M P O S A N T S
LORSQU'UN MAUVAIS FONCTIONNEMENT EST SUSPECTi.
2 7
2 9
31
3 5
3 9
3 9
4 0
4 7
5 0
51
5 3
5 6
5 7
5 8
A
R E L A T I F S L A
PAR UNE TRAME ET PAR UNE
DE PRINCIPE, LES VUES
DE PIECES CONT D'UNE
P O U R L A D U
REMPLACER QUE PAR DES
DE CIRCUIT DONT
DU
DANS LE
LORS DE CHAQUE
C R I T I Q U E S , O U