SERVICE MANUAL
MODEL
KV-21FX20A
KV-21FX20B
KV-21FX20D
FE-1A CHASSIS
COMMANDER
DEST
CHASSIS NO.
RM-887
Italian
SCC-Q32D-A
RM-887
French
SCC-Q33D-A
RM-887
AEP
SCC-Q31D-A
MODEL
KV-21FX20E
KV-21FX20K
KV-21FX20R
COMMANDER
DEST
CHASSIS NO.
RM-887
Spanish
SCC-Q34D-A
RM-887
OIRT
SCC-Q36E-A
RM-887
OIRT
SCC-Q36F-A
TRINITRON ® COLOR TV
®
MICROFILM
1
ITEM MODEL
Italian
Television System
B/G/H
French
Stereo System
GERMAN Stereo
B/G/H, D/K, L, I
B/G/H
GERMAN Stereo
Spanish
B/G/H
GERMAN/NICAM
Stereo
OIRT
B/G/H, D/K
Color System
ITALIA VHF : A-H2 (C) UHF : 21-69 PAL
B/G/H VHF : E2-E12 UHF : E21-E69
CABLE TV (1) : S1-S41
CABLE TV (2) : S01-S05, M1-M10, U1-U10
PAL, SECAM
NTSC4.43, NTSC3.58
(VIDEO IN)
L VHF : F02-F10 UHF : F21-F60
CABLE : B-Q B/G/H VHF : E2-E12
UHF : E21-E69
CABLE TV (1) : S1-S41
CABLE TV (2) : S01-S05, M1-M10, U1-U10
ITALIA VHF : A-H2 (C) UHF : 21-69
I UHF : B21-B69
GERMAN/NICAM
Stereo
AEP
Channel Coverage
KV-21FX20K
GERMAN/NICAM
Stereo
KV-21FX20R
GERMAN Stereo
PAL B/G/H VHF : E2-E12 UHF : E21-E69
CABLE TV (1) : S1-S41
CABLE TV (2) : S01-S05, M1-M10, U1-U10
ITALIA VHF : A-H2 (C) UHF : 21-69
PAL, SECAM
NTSC4.43, NTSC3.58
(VIDEO IN)
PAL B/G VHF : E2-E12 UHF : E21-E69
CABLE TV (1) : S1-S41
CABLE TV (2) : S01-S05, M1-M10, U1-U10
ITALIA VHF : A-H2 (C) UHF : 21-69
PAL, SECAM
NTSC4.43, NTSC3.58
(VIDEO IN)
B/G/H VHF : E2-E12 UHF : E21-E69
CABLE TV (1) : S1-S41
D/K VHF : R01-R12 UHF : R21-R69
PAL, SECAM
NTSC4.43, NTSC3.58
(VIDEO IN)
MODEL
21FX20A
21FX20B
21FX20D
21FX20E
21FX20K
21FX20R
Power Consumption
80W
80W
80W
80W
80W
80W
[PICTURE TUBE]
FD Trinitron
Approx. 55cm (21 inches)
(Approx. 51cm picture measured
diagonally)
110 degree deflection
[FRONT]
Video input - phono jack
Audio inputs - phono jacks
Headphone jacks : stereo minijack
Sound output
Power requirements
Dimensions
Weight
Supplied accessories
Input/Output Terminals
[REAR]
21-pin Euro connector (CENELEC standard).
Inputs for Audio and Video signals.
Inputs for RGB.
Outputs of TV Video and Audio signals.
-
2
-
21-pin Euro connector.
inputs for Audio and Video signals.
inputs for S Video.
outputs for Audio and Video signals (selectable).
-
Phono Jack
Outputs for Audio Signals
PAL, SECAM
NTSC4.43, NTSC3.58
(VIDEO IN)
Other features
2
2 x 7W (RMS)
220 - 240V
Approx 545x446x485mm (w/h/d)
Approx 26.5kg
RM-887 Remote Commander (1)
IEC designated R6 battery (2)
NICAM*, FASTEXT, TOPTEXT
*(KV-21FX20B/21FX20E/21FX20K only)
[RM-887]
Remote control system
Power requirements
Dimensions
Weight
Infrared control
3V dc
2 batteries IEC designation
R6 (size AA)
Approx 44x209x23mm (w/h/d)
Approx 89g (Not including battery)
Design and specifications are subject to change without notice.
Model Name
KV-21FX20A
KV-21FX20B
KV-21FX20D
KV-21FX20E
KV-21FX20K
KV-21FX20R
Pal Comb
OFF
OFF
OFF
OFF
OFF
OFF
PIP
OFF
OFF
OFF
OFF
OFF
OFF
RGB Priority
OFF
ON
ON
ON
OFF
OFF
Woofer Box
OFF
OFF
OFF
OFF
OFF
OFF
Scart 1
ON
ON
ON
ON
ON
ON
Scart 2
ON
ON
ON
ON
ON
ON
Front in (3)
OFF
OFF
OFF
OFF
OFF
OFF
Scart 4
OFF
OFF
OFF
OFF
OFF
OFF
Projector
OFF
OFF
OFF
OFF
OFF
OFF
AKB in 16:9 mode
ON
ON
ON
ON
ON
ON
Norm B/G
ON
ON
ON
ON
ON
ON
Norm I
OFF
ON
OFF
OFF
OFF
OFF
Norm D/K
OFF
ON
OFF
OFF
ON
ON
Norm AUS
OFF
OFF
OFF
OFF
OFF
OFF
Norm L
OFF
ON
OFF
OFF
OFF
OFF
Norm SAT
OFF
OFF
OFF
OFF
OFF
OFF
Norm M
OFF
OFF
OFF
OFF
OFF
OFF
Teletext
ON
ON
ON
ON
ON
ON
Nicam Stereo
OFF
ON
OFF
ON
ON
OFF
Language Preset
Italian
French
German
Spanish
OIRT
OIRT
Item
3
21 pin connector (
1/
,
2/
)
Pin No
1
2
4
1
21
20
19
16
15
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
12
Open
13
Ground (red)
14
Ground (blanking)
_
15
Green signal : 0.7 +/- 3dB, 75 ohms,
positive
_
_
Red input
0.7 +/- 3dB, 75 ohms, positive
(S signal Chroma
input)
0.3 +/- 3dB, 75 ohms, positive
High state (1-3V) Low state (0-0.4V)
Input impedence : 75 ohms
14
16
Blanking input
(Ys signal)
12
17
Ground (video
output)
10
18
Ground (video
input)
8
19
Video output
1V +/- 3dB, 75ohms, positive sync 0.3V
(-3+10dB)
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)
13
11
9
7
_
6
5
Signal level
Standard level : 0.5V rms
Output impedence : Less than 1kohm*
18
17
Signal
Audio output B
(right)
20
4
3
2
_
_
21
Common ground
(plug, shield)
1
Connected
4
Not Connected (open)
* at 20Hz - 20kHz
TABLE OF CONTENTS
Section
Title
FE-1A Self Diagnostic Software
Page
Section
1. GENERAL
4-1.
4-2.
Automatically tuning the TV
Using the Remote Control
Manually Tuning the TV
Adjusting the Picture
Adjusting the Sound
Viewing Teletext
Using Optional Equipment
Troubleshooting
Specifications
5-1.
5-2.
5-3.
5-4.
5-5.
Rear Cover Removal
Chassis Assy Removal
Service Position
S1 Board Removal
Picture Tube Removal
Removal and Replacement of
the Main - Bracket bottom plates
Page
Electrical Adjustments
Test Mode 2
.....................20
.....................23
5. DIAGRAMS
.....................7
.....................8
.....................9
.....................9
.....................10
.....................10
.....................11
.....................11
2. DISASSEMBLY
2-1.
2-2.
2-3.
2-4.
2-5.
2-6.
Title
4. CIRCUIT ADJUSTMENTS
.....................6
.....................12
.....................12
.....................12
.....................13
.....................14
Block Diagram
Circuit Board Location
Schematic Diagrams and
Printed Wiring Boards
* A Board
* S1 Board
* CVM Board
Semiconductors
IC Blocks
.....................25
.....................30
.....................30
.....................35
.....................40
.....................43
.....................45
.....................47
6. EXPLODED VIEWS
6-1.
6-2.
.....................15
Chassis
Picture Tube
7. ELECTRICAL PARTS LIST
.....................48
.....................49
.....................50
3. SET-UP ADJUSTMENTS
3-1.
3-2.
3-3.
3-4.
Beam Landing
Convergence
Focus
White Balance
.....................16
.....................17
.....................19
.....................19
CAUTION
ATTENTION
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
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.
WARNING !!
ATTENTION !!
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.
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.
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 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.
5
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