background image
KV-25E1
-- 1 --
MICROFILM
DEST.
COMMANDER
CHASSIS NO.
R
SCC-J26D-A
Italian
MODEL
SERVICE MANUAL
AE-3 CHASSIS
KV-25E1A
TRINITRON COLOR TV
R
MODEL
CHASSIS NO.
COMMANDER
DEST.
RM-831
SCC-J27D-A
French
KV-25E1B
RM-831
SCC-J29G-A
RM-831
OIRT
KV-25E1K
SCC-J28D-A
Spanish
KV-25E1E
RM-831
KV-25E1D
RM-831
AEP
SCC-J23D-A
SCC-J29H-A
RM-831
OIRT
KV-25E1R


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KV-25E1
-- 2 --
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1W
7
3
1W
Picture Tube
Super Trinitron
Approx. 63 cm (25 inches)
(Approx. 59 cm picture measured
diagonally)
110
° -deflection
Rear/Front Terminals
SPECIFICATIONS
Audio outputs (variable) - phono jacks
External speaker terminals ; 2-pin DIN (3)
[FRONT]
3 , Video input - phono jack
3 , Audio inputs - phono jacks
3 , S video input - 4 pin DIN
Headphonejack - stereo minijack
Sound output
2x25W (side speakers)
50W (woofer)
Dimensions
725x493x500 mm approx.
(incl. speakers)
Weight
Approx. 40.0 kg (incl. speakers)
Supplied accessories
Remote Commander RM831 (1)
Battery R6 (1)
Other features
Digital comb filter (High resolution)
FASTEXT
100Hz Digital Plus
DNR (Digital Noise Reduction)
Scroll Commander (RM-860)
PIP, Multi-PIP
1 21-pin Euro connector (CENELEC standard)
-
Inputs for audio / video signals
-
Inputs for RGB
-
Outputs of TV audio and video signals
2/
2, 21-pin Euro connector
-
Inputs for audio and video signals
-
Inputs for S video
-
Outputs for TV audio and video signals (selectable)
4/
4, 21-pin Euro connector
-
Inputs for audio and video signals
-
Inputs for S video
-
Outputs for TV audio and video signals (monitor out)
2,
4, S video inputs - 4 pin DIN
Audio inputs (L,R) - phono jacks
S video output - 4 pin DIN
Audio outputs - phono jacks
[REAR]


background image
KV-25E1
-- 3 --
[RM-831]
Remote control system
Infrared control
Power requirements
1.5V dc
1 battery IEC designation
R6 (size AA)
Dimensions
Approx. 65x225x21 mm (w/h/d)
Weight
Approx. 157g (Not including battery)
Design and specifications are subject to change without notice.
The flexible mains lead is supplied connected to a B.S. 1363 fused
plug having a fuse of 5 AMP capacity. Should the fuse need to be
replaced, use a 5 AMP FUSE approved by ASTA to BS 1362, ie
one that carries the
mark.
IF THE PLUG SUPPLIED WITH THIS APPLIANCE IS NOT
SUITABLE FOR YOUR SOCKET OUTLETS IN YOUR HOME.
IT SHOULD BE CUT OFF AND AN APPROPRIATE PLUG FITTED.
THE PLUG SEVERED FROM THE MAINS LEAD MUST BE
DESTROYED AS A PLUG WITH BARED WIRES IS
DANGEROUS IF ENGAGED IN A LIVE SOCKET OUTLET.
When an alternative type of plug is used it should be fitted with a 5 AMP
FUSE, otherwise the circuit should be protected by a 5 AMP FUSE at the
distribution board.
FUSE
How to replace the fuse.
Open the fuse compartment with the
screwdriver blade
and replace the fuse.
ASA
T
WARNING ( KV-29F2U only )
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KV-25E1
-- 4 --
21 pin connector (
1,
2 /
2,
4 /
4,
2,
4 )
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background image
KV-25E1
-- 5 --
TABLE OF CONTENTS
Section
Title
Page
Section
Title
Page
1. GENERAL
Getting Started ...................................................................
Additional Presetting Functions ........................................
Operating Instructions .......................................................
Adjusting and Setting the TV Using the Menu .................
PIP (Picture in Picture) .....................................................
Teletext ..............................................................................
Connecting and operating Optional Equipment ................
For Your Information ........................................................
2. DISASSEMBLY
2-1.
Rear Cover Removal ..................................................
2-2.
Chassis Assy and H Bracket Removal .......................
2-3.
Service Position ..........................................................
2-4.
A Board Removal .......................................................
2-5.
Wire Dressing .............................................................
2-6.
Picture Tube Removal ................................................
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 : ..............................................................
4-4.
Error Monitor and Detection ......................................
4-5.
LED Error Blinking ....................................................
5. DIAGRAMS
5-1.
Block Diagrams ..........................................................
5-2.
Circuit Boards Location .............................................
5-3.
Schematic Diagrams and Printed Wiring Boards .......
* A Board ...................................................................
* J Board .....................................................................
* H1, H2, F1 Board ....................................................
* B Board ....................................................................
* G Board ...................................................................
* D Board ...................................................................
* VM Board ................................................................
* C Board ....................................................................
* IF Block [IFH-389FX] (KV-25E1B only) .............
* IF Block [IFH-389WE] (KV-25E1A, 25E1D,
25E1E, 25E1K and 25E1R only) ............................
5-4.
Semiconductors ..........................................................
6. EXPLODED VIEWS
6-1.
Chassis ........................................................................
6-2.
Picture Tube ...............................................................
6-3.
Box Speakers ..............................................................
7. ELECTRICAL PARTS LIST ...............................
6
8
10
11
12
13
15
16
17
17
17
17
18
18
19
20
21
22
23
26
27
29
30
31
42
42
47
57
60
64
78
83
87
88
91
93
97
100
101
102
103
!
!
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.