1
SERVICE MANUAL
FE-1 CHASSIS
MODEL
COMMANDER
DEST
CHASSIS NO.
MODEL
COMMANDER
DEST
CHASSIS NO.
SELF-DIAGNOSTIC FUNCTION
RM-883
PROGR
MENU
/
®
KV-25R2A RM-883 Italian SCC-Q06J-A
KV-25R2D RM-883 AEP SCC-Q04J-A
KV-25R2E RM-883 Spanish SCC-Q05J-A
KV-25R2K RM-883 OIRT SCC-Q03Q-A
KV-25R2R RM-883 OIRT SCC-Q03P-A
MICR OFILM
TRINITRON ® COLOR TV
2
ITEM MODEL
Television System
Stereo System
Channel Coverage
Color System
Italian
B/G/H
GERMAN Stereo
VHF : E02-E12, A-H2
UHF : E21-E69
CABLE TV : S01-S05, S1-S20
HYPER : S21-S41
PAL, SECAM
NTSC4.43, NTSC3.58
(VIDEO IN)
AEP
B/G/H
GERMAN Stereo
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
NTSC4.43, NTSC3.58
(VIDEO IN)
Spanish
B/G/H, DK
GERMAN/NICAM
Stereo
VHF : E02-E12, A-H2, R01-R12
UHF : E21-E69, R21-R69
CABLE TV : S01-S05, S1-S20
HYPER : S21-S41
PAL, SECAM
NTSC4.43, NTSC3.58
(VIDEO IN)
OIRT
B/G/H, D/K
KV-25R2K
GERMAN/NICAM
Stereo
KV-25R2R
GERMAN Stereo
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)
MODEL
25R2A
25R2D
25R2E
25R2K
25R2R
Power Consumption
95W
95W
95W
95W
95W
[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 inputs - phono jacks
Headphone jack : stereo minijack
Sound output
2x14W (Music Power)
Power requirements
220 - 240V
Dimensions
Approx 604x549x508mm
Weight
Approx 31kg
Supplied accessories
RM-883 Remote Commander (1)
IEC designated R6 battery (2)
Other features
NICAM*, FASTEXT, TOPTEXT
* (KV-25R2E/25R2K only)
[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.
3
Model Name
Item
KV-25R2A
KV-25R2D
KV-25R2E
KV-25R2K
KV-25R2R
Pal Comb
OFF
OFF
OFF
OFF
OFF
PIP
OFF
OFF
OFF
OFF
OFF
Woofer Box
OFF
OFF
OFF
OFF
OFF
Scart 1
ON
ON
ON
ON
ON
Scart 2
OFF
OFF
OFF
OFF
OFF
Front in (3)
ON
ON
ON
ON
ON
Scart 4
OFF
OFF
OFF
OFF
OFF
Projector
OFF
OFF
OFF
OFF
OFF
AKB in 16:9 mode
ON
ON
ON
ON
ON
Norm B/G
ON
ON
ON
ON
ON
Norm I
OFF
OFF
OFF
OFF
OFF
Norm D/K
OFF
OFF
ON
ON
ON
Norm AUS
OFF
OFF
OFF
OFF
OFF
Norm L
OFF
ON
OFF
OFF
OFF
Norm SAT
OFF
OFF
OFF
OFF
OFF
Norm M
OFF
OFF
OFF
OFF
OFF
Teletext
ON
ON
ON
ON
ON
Nicam Stereo
OFF
OFF
ON
ON
OFF
Language Preset
Italian
German
Spanish
OIRT
OIRT
4
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)
5
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
Adjusting the Sound
.....................7
Using the Sleep Timer
.....................8
Using the Wake Up Timer
.....................8
Viewing Teletext
.....................9
Exchanging Programme Pos
.....................9
Manually Tuning the TV
.....................10
Fine-Tuning Channels
.....................10
Using Optional Equipment
.....................11
Troubleshooting
.....................11
2. DISASSEMBLY
2-1.
Rear Cover Removal
.....................12
2-2.
Chassis Assy Removal
.....................12
2-3.
Service Position
.....................13
2-4.
S1 Board Removal
.....................13
2-5.
Picture Tube Removal
.....................14
3. SET-UP ADJUSTMENTS
3-1.
Beam Landing
.....................15
3-2.
Convergence
.....................16
3-3.
Screen [G2] White Balance
.....................18
3-4.
Focus
.....................18
4. CIRCUIT ADJUSTMENTS
4-1.
Electrical Adjustments
.....................19
4-2.
Test Mode 2
.....................22
4-3.
FE-1 Self Diagnostic Software
.....................23
5. DIAGRAMS
5-1.
Block Diagram
.....................25
5-2.
Circuit Board Location
.....................30
5-3.
Schematic Diagrams and
Printed Wiring Boards
.....................30
*
A Board
.....................35
*
S1 Board
.....................40
*
C Board
.....................43
5-4.
Semiconductors
.....................45
5-5.
IC Blocks
.....................47
6. EXPLODED VIEWS
6-1.
Chassis
.....................48
6-2.
Picture Tube
.....................49
7. ELECTRICAL PARTS LIST
.....................50