KV-25X3
-- 2 --
SPECIFICATIONS
Picture Tube
Super Trinitron
Approx. 63 cm (25inches)
(Approx. 59 cm picture measured
diagonally) 110° deflection
[FRONT]
3 Video input - phono jack
3 Audio inputs - phono jacks
3 S video input - 4 pin DIN
Headphones jack: stereo minijack
Sound output
2x30W (music power), 2x15W (RMS)
Dimensions
593x502x508 mm approx.
Weight
Approx. 33.1kg
Supplied accessories
Remote Commander RM-862 (1)
Batteries R6 (2)
Aerial cable (1)
Other features
FASTEXT, 100Hz Digital Plus, PIP,
NICAM stereo (KV-25X3B/25X3E only)
21-pin Euro connector (CENELEC standard)
-
Inputs for audio and video signals
-
Inputs for RGB
-
Outputs of TV video and audio signals
2/
2 21-pin Euro connector
-
Inputs for audio and video signals
-
Inputs for S video
-
Outputs for audio and video signals (selectable)
Rear/Front Terminals
[REAR]
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[RM-862]
Remote control system
Infrared control
Power requirements
3V dc (2 batteries) R6 (size AA)
Dimensions
Approx. 210x56x24 mm (w/h/d)
Weight
Approx. 110g
(Not including battery)
Design and specifications are subject to change without
notice.
KV-25X3
-- 4 --
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1
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-- 5 --
KV-25X3
TABLE OF CONTENTS
Section
Title
Page
Section
Title
Page
!
!
ATTENTION
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.
ATTENTION !!
AFIN D'EVITER TOUT RISQUE 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
SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÈS PAR UNE TRAME ET PAR UNE
MARQUE
SUR LES VUES EXPLOSÉES ET LES LISTES DE
PIECES SONT D'UNE IMPORTANCE CRITIQUE PUR 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.
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
ON THE
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.
1. GENERAL
Overview ...........................................................................
Basic Operation .................................................................
Advanced Operation ..........................................................
Teletext ..............................................................................
Optional Equipment ..........................................................
Additional Information ......................................................
2. DISASSEMBLY
2-1.
Rear Cover Removal ..................................................
2-2.
Chassis Assy Removal ...............................................
2-3.
Service Position ..........................................................
2-4.
G Board Removal .......................................................
2-5.
A Board Removal .......................................................
2-6.
Picture Tube Removal ................................................
Removal amd Replacement of
the Main - Bracket Bottom Plates ..............................
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing ............................................................
3-2.
Convergence ...............................................................
3-3.
Focus ..........................................................................
3-4.
Screen (G2), White Balance,
(Adjustment in the service mode
with remote commander) ............................................
4. CIRCUIT ADJUSTMENTS
4-1.
Electrical Adjustments ................................................
4-2.
Volume Electrical Adjustments ..................................
4-3.
Test Mode 2: ...............................................................
5. DIAGRAMS
5-1.
Block Diagram (1) ......................................................
Block Diagram (2) ......................................................
Block Diagram (3) ......................................................
Block Diagram (4) ......................................................
Block Diagram (5) ......................................................
5-2.
Circuit Boards Location .............................................
5-3.
Schematic Diagrams and Printed Wiring Boards .......
*A Board ....................................................................
*C Board .....................................................................
*VM Board .................................................................
* B Board ....................................................................
*G Board ....................................................................
*D Board ....................................................................
5-4.
Semiconductors ..........................................................
5-5.
IC Block Diagrams .....................................................
6. EXPLODED VIEWS
6-1.
Chassis ........................................................................
6.2
Picture Tube ...............................................................
7. ELECTRICAL PARTS LIST ...............................
7
8
9
13
15
16
17
17
17
17
18
18
19
20
21
23
23
24
28
29
31
33
35
39
41
44
44
49
57
60
67
75
80
86
89
90
91
92