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Section
TV SECTION
Step 1-Preparation ...............................................
Step 2-Connecting the Aerial ..................................
Step 3-Tuning in to TV Stations ..............................
Step 4-Setting up Video Plus+ ................................
Step 5-Setting the Clock .......................................
Watching the TV ................................................ 10
Viewing Teletext ................................................ 12
Playing a Tape ................................................... 13
Recording TV Programmes .................................... 14
Recording TV Programmes Using the Timer ............... 15
Recording TV Programmes Using Video Plus+ ............ 18
Switching off Automatically-Sleep Timer .................. 19
Switching on at Your Desired Time-On Timer ............. 19
Enhancing Video Picture Quality ............................. 20
Connecting Optional Equipment .............................. 21
Index to Parts and Controls .................................... 22
Rear Cover Removal ................................... 23
2-1.
Chassis Assy Removal ................................. 23
2-2.
A Board Removal ...................................... 23
2-3.
Service Position ......................................... 23
2-4.
Picture Tube Removal ................................. 24
2-5.
Beam Landing .......................................... 26
3-1.
Convergence ............................................ 27
3-2.
3-3.
and Sub Brightness ..................................... 29
After correcting the original service problem, perform the follow-
ing safety checks before releasing the set to the customer:
1. Check the area of your repair for unsoldered or poorly-solderd
connections. Check the entire board surface for solder splashes
and bridges.
2. Check the interboard wiring to ensure that no wires are
"pinched" or contact high-wattage resistors.
(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 ANODE.
WARNING!!
AN ISOLATION TRANSFORMER 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 WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK
SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE PARTS
LIST ARE CRITICAL FOR 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 FOR SAFE OPERATION ARE IDENTIFIED IN THIS
MANUAL. FOLLOW THESE PROCEDURES WHENEVER CRITICAL
COMPONENTS ARE REPLACED OR IMPROPER OPERATION IS
SUSPECTED.
TABLE OF CONTENTS
Title
Page
SAFETY CHECK-OUT
ON THE
Section
Focus ..................................................... 29
3-4.
4
4-1.
Electrical Adjustments ................................. 30
4
5
8
9
Block Diagram .......................................... 33
5-1.
Circuit Boards Location ............................... 37
5-2.
5-3.
• A Board ................................................ 41
• YC Board .............................................. 45
• C, F2, H3, H4 Boards ................................ 52
Picture Tube ............................................. 92
5-1.
Chassis ................................................... 93
5-2.
..................................................... 60
............................................... 65
................................................... 70
6. ELECTRICAL PARTS LIST
3. Look for unauthorized replacement parts, particularly tran-
sistors, that were installed during a previous repair. Point them
out to the customer and recommend their replacement.
4. Look for parts which, through functioning, show obvious
signs of deterioration. Point them out to the customer and
recommend their replacement.
5. Check the B+ voltage to see it is at the values specified.
APRES AVOIR DECONNECTE LE CAP DE L'ANODE, COURT-
CIRCUITER L'ANODE DU TUBE CATHODIQUE ET CELUI 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 CATHODIQUE.
AFIN D'EVITER TOUT RESQUE D'ELECTROCUTION PROVENANT
D'UN CHÁSSIS SOUS TENSION, UN TRANSFORMATEUR
D'ISOLEMENT DOIT ETRE UTILISÉ LORS DE TOUT DÉPANNAGE.
LE CHÁSSIS DE CE RÉCEPTEUR EST DIRECTEMENT RACCORDÉ
À L'ALIMENTATION SECTEUR.
ATTENTION AUX COMPOSANTS RELATIFS À LA
LES COMPOSANTS IDENTIFIÈS PAR UNE TRAME ET PAR UNE
MARQUE
SUR LES SCHÉMAS DE PRINCIPE, LES VUES
EXPLOSÉES ET LES LISTES DE PIECES SONT D'UNE IMPORTANCE
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 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.
- 3 -
Title
............................ 98
.............................. 61
....................................... 94
............................ 109
(ATTENTION)
ATTENTION!!
SÉCURITÉ!!
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