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1
SERVICE MANUAL
FE-1 CHASSIS
MODEL
COMMANDER
DEST
CHASSIS NO.
MODEL
COMMANDER
DEST
CHASSIS NO.
SELF-DIAGNOSTIC FUNCTION
RM-883
PROGR
MENU
/
®
KV-25M2A RM-883 Italian SCC-Q06G-A
KV-25T2A RM-883 Italian SCC-Q06H-A
KV-25T2B RM-883 French SCC-Q02G-A
KV-25M2D RM-883 AEP
SCC-Q04G-A
KV-25T2D RM-883 AEP
SCC-Q04H-A
KV-25M2E RM-883 Spanish SCC-Q05G-A
KV-25T2E RM-883 Spanish SCC-Q05H-A
KV-25M2K RM-883 OIRT SCC-Q03J-A
KV-25T2K RM-883 OIRT SCC-Q03K-A
KV-25T2R RM-883 OIRT SCC-Q03L-A
KV-25T2L RM-883 Irish
SCC-Q07C-A
KV-25T2U RM-883 UK
SCC-Q01E-A
MICR OFILM
TRINITRON® COLOR TV


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2
KV-25M2/25T2
ITEM MODEL
Television System
Channel Coverage
Color System
Italian
B/G/H
VHF : E02-E12, A-H2
UHF : E21-E69
CABLE TV : S01-S05, S1-S20
HYPER : S21-S41
PAL
French
B/G/H, L
VHF : E02-E12, R01-R12, F2-F10, A-H2
UHF : E21-E69, B21-B69, R21-R69, F21-F69
CABLE TV : S01-S05, S1-S20
HYPER : S21-S41
PAL, SECAM
AEP
B/G/H
VHF : E02-E12, A-H2, R01-R12
UHF : E21-E69, B21-B69, R21-R69, F21-F69
CABLE TV : S01-S05, S1-S20
HYPER : S21-S41
PAL, SECAM
Spanish
B/G/H
VHF : E02-E12, A-H2, R01-R12
UHF : E21-E69, R21-R69
CABLE TV : S01-S05, S1-S20
HYPER : S21-S41
PAL, SECAM
OIRT
B/G/H, D/K
VHF : E2-E12, R01-R12, A-H2
UHF : E21-E69, R21-R69
CABLE TV : S01-S05, S1-S20
HYPER : S21-S41
PAL, SECAM
NTSC4.43, NTSC3.58
(VIDEO IN)
Irish
I
VHF : E02-E12, A-H2
UHF : B21-B69
CABLE TV : S01-S05, S1-S20
HYPER : S21-S46
PAL
UK
I
UHF : B21-B69
PAL
MODEL
25M2A
25T2A
25T2B
25M2D
25T2D
25M2E
25T2E
25M2K
25T2K
25T2R
25T2L
25T2U
Power Consumption
92 W
92 W
92 W
92 W
92 W
92 W
115 W
115 W
[PICTURE TUBE]
Super Trinitron
Approx. 63 cm (25 inches)
(Approx. 59 cm picture measured
diagonally)
110 degree deflection
Input/Output Terminals
[REAR]
1/
21-pin Euro connector (CENELEC standard).
-
Inputs for Audio and Video signals.
-
Inputs for RGB.
-
Outputs of TV Video and Audio signals.
[FRONT]
2 Video input - phono jack
Audio input - phono jack
Headphone jack : minijack
Sound output
7W (Music Power)
Power requirements
220 - 240V
Dimensions
Approx 604x549x508mm
Weight
Approx 31 kg
Supplied accessories
RM-883 Remote Commander (1)
IEC designated R6 battery (2)
Other features
TELETEXT (For KV-25T2 models)
[RM-883]
Remote control system
Infrared control
Power requirements
3V dc
2 batteries IEC designation
R6 (size AA)
Dimensions
Approx 65x225x21mm (w/h/d)
Weight
Approx 157g (Not including battery)
Design and specifications are subject to change without notice.


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3
KV-25M2/25T2
WARNING (KV-25T2L / KV-25T2U only)
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
the mark.
IF THE PLUG SUPPLIED WITH THIS APPLIANCE IS NOT SUITABLE
FOR THE OUTLET SOCKETS 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 OUTLET
SOCKET.
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.
Model Name
Item
KV-25M2A
KV-25T2A
KV-25T2B
KV-25M2D
KV-25T2D
KV-25M2E
KV-25T2E
KV-25M2K
KV-25T2K
KV-25T2L
KV-25T2R
KV-25T2U
Pal Comb
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
PIP
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Woofer Box
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Scart 1
ON
ON
ON
ON
ON
ON
ON
ON
Scart 2
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Front in (3)
ON
ON
ON
ON
ON
ON
ON
ON
Scart 4
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Projector
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
AKB in 16:9 mode
ON
ON
ON
ON
ON
ON
ON
ON
Norm B/G
ON
ON
ON
ON
ON
OFF
ON
OFF
Norm I
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
Norm D/K
OFF
OFF
OFF
OFF
ON
OFF
ON
OFF
Norm AUS
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Norm L
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
Norm SAT
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Norm M
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Language Preset
Italian
French
German
Spanish
OIRT
English
OIRT
English
ASA
T
How to replace the fuse.
Open the fuse compartment with
a screwdriver blade and replace
the fuse.
FUSE


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4
KV-25M2/25T2
21 pin connector (
1/
)
Connected
Not Connected (open)
* at 20Hz - 20kHz
19
17
15
13
11
9
7
5
3
1
20
18
16
14
12
10
8
6
4
2
21
Pin No
1
2
4
Signal
Signal level
1
Audio output B
(right)
Standard level : 0.5V rms
Output impedence : Less than 1kohm*
2
Audio output B
(right)
Standard level : 0.5V rms
Output impedence : More than 10kohm*
3
Audio output A
(left)
Standard level : 0.5V rms
Output impedence : Less than 1kohm*
4
Ground (audio)
5
Ground (blue)
6
Audio input A
(left)
Standard level : 0.5V rms
Output impedence : More than 10kohm*
7
Blue input
0.7 +/- 3dB, 75 ohms positive
8
Function select
(AV control)
High state (9.5-12V) : Part mode
Low state (0-2V) : TV mode
Input impedence : More than 10K ohms
Input capacitance : Less than 2nF
9
Ground (green)
10
Open
11
Green
Green signal : 0.7 +/- 3dB, 75 ohms,
positive
12
Open
13
Ground (red)
14
Ground (blanking)
15
_
_
Red input
0.7 +/- 3dB, 75 ohms, positive
_
(S signal Chroma
input)
0.3 +/- 3dB, 75 ohms, positive
16
Blanking input
(Ys signal)
High state (1-3V) Low state (0-0.4V)
Input impedence : 75 ohms
17
Ground (video
output)
18
Ground (video
input)
19
Video output
1V +/- 3dB, 75ohms, positive sync 0.3V
(-3+10dB)
20
_
_
Video input
1V +/- 3dB, 75ohms, positive sync 0.3V
(-3+10dB)
_
Video input
Y (S signal)
1V +/- 3dB, 75ohms, positive sync 0.3V
(-3+10dB)
21
Common ground
(plug, shield)


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5
KV-25M2/25T2
TABLE OF CONTENTS
CAUTION
SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE
ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR THE
CARBON PAINTED ON THE CRT, AFTER REMOVAL OF THE
ANODE CAP
WARNING !!
AN ISOLATING TRANSFORMER SHOULD BE USED DURING ANY
SERVICE WORK TO AVOID POSSIBLE SHOCK HAZARD DUE TO
LIVE CHASSIS. THE CHASSIS OF THIS RECEIVER IS DIRECTLY
CONNECTED TO THE POWER LINE.
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY SHADING AND MARKED
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.
ATTENTION
APRES AVOIR DECONNECTE LE CAP DE'LANODE,
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 TENTION, UN TRANSFORMATEUR
D'ISOLEMENT DOIT ETRE UTILISÈ LORS DE TOUT DÈPANNAGE.
LE CHÁSSIS DE CE RÈCEPTEUR EST DIRECTMENT RACCORDÈ
Á L'ALIMENTATION SECTEUR.
ATTENTION AUX COMPOSANTS RELATIFS Á LA
SÈCURITÈ !!
LES COMPOSANTS IDENTIFIÈS PAR UNE TRAME ET PAR UNE
MARQUE
SUR LES SCHÈMAS DE PRINCIPE, LES VUES
EXPLOSÈES ET LES LISTES DE PIECES SONT D'UNE IMPORTANCE
CRITIQUE POUR LA SÈCURITÈ DU FONCTIONNEMENT, NE LES
REMPLACER QUE PAR DES COMPSANTS SONY DONT LE NUMÈRO
DE PIÈCE EST INDIQUÈ DANS LE PRÈSENT MANUEL OU DANS
DES SUPPLÈMENTS PUBLIÈS PAR SONY.
Section
Title
Page
Section
Title
Page
1. GENERAL
Overview of TV buttons
.....................6
Using Select mode
.....................6
Adjusting the Picture
.....................7
Using the Sleep Timer
.....................7
Viewing Teletext
.....................8
Exchanging Programme Positions .....................9
Manually Tuning the TV
.....................9
Fine-Tuning Channels
.....................10
Using Optional Equipment
.....................10
Troubleshooting/Specifications
.....................11
2. DISASSEMBLY
2-1.
Rear Cover Removal
.....................12
2-2.
Chassis Assy Removal
.....................12
2-3.
Service Position
.....................12
2-4.
Picture Tube Removal
.....................13
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing
.....................14
3-2.
Convergence
.....................15
3-3.
Screen [G2] White Balance
.....................17
3-4.
Focus
.....................17
4. CIRCUIT ADJUSTMENTS
4-1.
Electrical Adjustments
.....................18
4-2.
Test Mode 2
.....................21
4-3.
FE-1 Self Diagnostic Software
.....................22
5. DIAGRAMS
5-1.
Block Diagrams
.....................23
5-2.
Circuit Board Location
.....................27
5-3.
Schematic Diagrams and
Printed Wiring Boards
.....................27
*
A Board
.....................31
*
C Board
.....................36
5-4.
Semiconductors
.....................39
5-5.
IC Blocks
.....................40
6. EXPLODED VIEWS
6-1.
Chassis
.....................41
6-2.
Picture Tube
.....................42
7. ELECTRICAL PARTS LIST
.....................43