Read Sony KV-20FS100 Service Manual online
SERVICE MANUAL
BA-6
CHASSIS
TRINITRON
®
COLOR TELEVISION
MODEL NAME
REMOTE COMMANDER
DESTINATION
CHASSIS NO.
9-965-922-06
KV-20FS100
RM-Y173
US
SCC-S61A-A
KV-20FS100
RM-Y173
CND
SCC-S59A-A
KV-20FV300
RM-Y180
US
SCC-S61B-A
KV-20FV300
RM-Y180
CND
SCC-S59B-A
KV-21FM100
RM-Y172
LATIN NORTH
SCC-S60E-A
KV-21FM100
RM-Y172
LATIN SOUTH
SCC-S60F-A
KV-21FS100
RM-Y173
LATIN NORTH
SCC-S60A-A
KV-21FS100
RM-Y173
LATIN SOUTH
SCC-S60B-A
KV-21FV300
RM-Y180
LATIN SOUTH
SCC-S60D-A
KV-21FV300
RM-Y180
LATIN NORTH
SCC-S60C-A
KV-24FV300
RM-Y180
US
SCC-S61C-A
KV-24FV300
RM-Y180
CND
SCC-S59C-A
KV-25FV300
RM-Y180
LATIN NORTH
SCC-S60G-A
KV-25FV300
RM-Y180
LATIN SOUTH
SCC-S60H-A
Self Diagnosis
Supported model
KV-24FV300
RM-Y180
— 3 —
KV-20FS100/20FV300/21FM100/21FS100/
21FV300/24FV300/25FV300
TABLE OF CONTENTS
SpeciÞ cations........................................................................................................................................ 4
Warnings and Cautions ........................................................................................................................ 5
Safety
Check-Out.................................................................................................................................. 6
Self-Diagnostic
Function....................................................................................................................... 7
1. Disassembly
1-1. Rear Cover Removal...................................................................................................................... 9
1-2. Chassis Assembly Removal .......................................................................................................... 9
1-3. Service Position ............................................................................................................................. 9
1-4. Picture Tube Removal .................................................................................................................. 10
Anode Cap Removal Procedure.................................................................................................. 10
2. Set-Up Adjustments
2-1.
2-1.
Beam
Landing.............................................................................................................................. 11
2-2.
Convergence................................................................................................................................ 12
2-3.
Focus ........................................................................................................................................... 13
2-4.
Screen
(G2) ................................................................................................................................. 13
2-5. Method of Setting the Service Adjustment Mode......................................................................... 14
2-6. White Balance Adjustments ......................................................................................................... 14
3. Safety Related Adjustments
3-1.
3-1.
X
R565 ConÞ rmation Method (HV Hold Down ConÞ rmation) and Readjustments.................... 15
3-2. B+ Voltage ConÞ rmation and Adjustment .................................................................................... 15
4. Circuit Adjustments
4-1. Setting the Service Adjustment Mode.......................................................................................... 17
4-2. Memory Write ConÞ rmation Method............................................................................................ 17
4-3. Remote Adjustment Buttons and Indicators ................................................................................ 17
Adjustment
Items ........................................................................................................................ 18
4-4. ID Map Table................................................................................................................................ 26
4-5. A Board Adjustments ................................................................................................................... 26
5. Diagrams
5-1. Circuit Boards Location................................................................................................................ 29
5-2. Printed Wiring Board and Schematic Diagram Information ........................................................ 29
5-3. Block Diagram and Schematics ................................................................................................... 30
A Board Schematic Diagram ....................................................................................................... 31
CV Board Schematic Diagram .................................................................................................... 41
HR Board Schematic Diagram .................................................................................................... 43
M3 Board Schematic Diagram .................................................................................................... 44
5-4.
Semiconductors ........................................................................................................................... 46
6. Exploded Views
6-1. Chassis (KV-21FM100 ONLY)..................................................................................................... 47
6-2. Chassis (KV-20FS100/21FS100 ONLY)...................................................................................... 48
6-3. Chassis (KV-20FV300/21FV300 ONLY)...................................................................................... 49
6-4. Chassis (KV-24FV300/25FV300 ONLY)...................................................................................... 50
7. Electrical Parts List ..................................................................................................................................... 51
SECTION TITLE
PAGE
— 4 —
KV-20FS100/20FV300/21FM100/21FS100/
21FV300/24FV300/25FV300
Television system
American TV Standard, NTSC
Channel coverage
VHF: 2-13/ UHF: 14-69/ CATV: 1-125
Picture tube
FD Trinitron
®
tube
SPECIFICATIONS
Design and speciÞ cations are subject to change without notice.
1) 1 Vp-p 75 ohms unbalanced, sync negative
2) Y: 1 Vp-p 75 ohms unbalanced, sync negative
C: 0.286 Vp-p (Burst signal), 75 ohms
3) Y: 1.0 Vp-p, 75 ohms, sync negative; PB: 0.7 Vp-p, 75 ohms;
PR Vp-p, 75 ohms.
4) 500 mVrms (100% modulation), Impedance: 47 kilohms
5) More than 408 mVrms at the maximum volume setting (variable)
More than 408 mVrms (Þ x); Impedance (output): 2 kilohms
Antenna
75 ohm external terminal for VHF/UHF
Supplied Accessories
Remote
Commander:
RM-Y172
(KV-21FM100
ONLY)
RM-Y173
(KV-20FS100/21FS100
ONLY)
RM-Y180
(KV-20FV300/21FV300/24FV300/25FV300
ONLY)
Size AA (R6) batteries (2)
Antenna,
Telescopic
(KV-21FM100/21FS100/21FV300/25FV300
ONLY)
Visible screen size
20/21-20 inch picture measured diagonally
24/25-24 inch picture measured diagonally
24/25-24 inch picture measured diagonally
Actual screen size
20/21-21 inch measured diagonally
24/25-25 inch measured diagonally
24/25-25 inch measured diagonally
(
•
)
SRS (SOUND RETRIEVAL SYSTEM)
The (
•
)
SRS (SOUND RETRIEVAL SYSTEM) is
manufactured by Sony Corporation under license
from SRS Labs, Inc. It is covered by U.S. Patent No.
4,748,669. Other U.S. and foreign patents pending.
from SRS Labs, Inc. It is covered by U.S. Patent No.
4,748,669. Other U.S. and foreign patents pending.
The word ‘SRS’ and the SRS symbol (
•
) are
registered trademarks of SRS Labs, Inc.
BBE and BBE symbol are trademarks of BBE Sound,
Inc. and are licensed by BBE Sound, Inc. under U.S.
Patent No. 4,638,258 and 4,482,866.
Inc. and are licensed by BBE Sound, Inc. under U.S.
Patent No. 4,638,258 and 4,482,866.
KV-21FM100 (N)
KV-21FM100 (S)
KV-21FS100 (S)
KV-20FS100/
21FS100 (N)
Power requirements
120V, 60Hz
220V, 50/60Hz
220V, 50/60Hz
120V, 60Hz
Number of Inputs/Outputs
Video
1)
2
2
2
2
S Video
2)
0
0
0
0
Y , P
B
, P
R
3)
0
0
1
1
Audio
4)
2
2
4
4
Audio Out
5)
0
0
0
0
Speaker output (W)
3W x 2
3W x 2
5W x 2
5W x 2
Headphones
5)
1
1
1
1
Power Consumption (W)
In use (Max)
115W
110W
115W
120W
In Standby
1W
1W
1W
1W
Dimensions(W/H/D)
mm
592 x 466 x 494 mm
592 x 466 x 494 mm
592 x 466 x 494 mm
592 x 466 x 494 mm
in
23
1/4
x 18
3/8
x 19
1/2
23
1/4
x 18
3/8
x 19
1/2
23
1/4
x 18
3/8
x 19
1/2
23
1/4
x 18
3/8
x 19
1/2
Mass
kg
24.8 kg
24.8 kg
24.8 kg
24.8 kg
lbs
54 lbs. 11 oz.
54 lbs. 11 oz.
54 lbs. 11 oz.
54 lbs. 11 oz.
KV-20FV300/
21FV300 (N)
KV-21FV300 (S)
KV-24FV300/
25FV300 (N)
KV-25FV300 (S)
Power requirements
120V, 60Hz
220V, 50/60Hz
120V, 60Hz
220V, 50/60Hz
Number of Inputs/Outputs
Video
1)
2
2
2
2
S Video
2)
1
1
1
1
Y , P
B
, P
R
3)
1
1
1
1
Audio
4)
4
4
4
4
Audio Out
5)
1
1
1
1
Speaker output (W)
10W x 2
10W x 2
10W x 2
10W x 2
Headphones
5)
1
1
1
1
Power Consumption (W)
In use (Max)
155W
155W
180W
180W
In Standby
1W
1W
1W
1W
Dimensions(W/H/D)
mm
609 x 463 x 502 mm
609 x 463 x 502 mm
762 x 625 x 570 mm
762 x 625 x 570 mm
in
24 x 18
1/4
x 19
3/4
24 x 18
1/4
x 19
3/4
30 x 22
7/16
x 24
5/8
30 x 24
5/8
x 22
7/16
Mass
kg
27 kg.
27 kg.
37 kg
37 kg
lbs
59 lbs. 8 oz.
59 lbs. 8 oz.
81 lbs. 9 oz.
81 lbs. 9 oz.
— 5 —
KV-20FS100/20FV300/21FM100/21FS100/
21FV300/24FV300/25FV300
WARNINGS AND CAUTIONS
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.
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.
this receiver is directly connected to the AC power line.
!
SAFETY-RELATED COMPONENT WARNING!!
Components identifi ed 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. Circuit adjustments that are critical for safe operation are identifi ed in this manual. Follow these procedures
whenever critical components are replaced or improper operation is suspected.
safe operation. Replace these components with Sony parts whose part numbers appear as shown in this manual or in supplements
published by Sony. Circuit adjustments that are critical for safe operation are identifi ed in this manual. Follow these procedures
whenever critical components are replaced or improper operation is suspected.
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 la couche de carbone peinte sur le tube cathodique ou au blindage du tube cathodique.
de l’appareil, ou la couche de carbone peinte sur le tube cathodique ou au blindage du tube cathodique.
Afi n 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 du secteur.
dépannage. Le chássis de ce récepteur est directement raccordé à l’alimentation du secteur.
!
ATTENTION AUX COMPOSANTS RELATIFS A LA SECURITE!!
Les composants identifi es par une trame et par une marque ! sur les schemas de principe, les vues explosees et les listes de
pieces sont d’une importance critique pour la securite du fonctionnement. Ne les remplacer que par des composants Sony dont
le numero de piece est indique dans le present manuel ou dans des supplements publies par Sony. Les reglages de circuit dont
l’importance est critique pour la securite du fonctionnement sont identifi es dans le present manuel. Suivre ces procedures lors de
chaque remplacement de composants critiques, ou lorsqu’un mauvais fonctionnement suspecte.
pieces sont d’une importance critique pour la securite du fonctionnement. Ne les remplacer que par des composants Sony dont
le numero de piece est indique dans le present manuel ou dans des supplements publies par Sony. Les reglages de circuit dont
l’importance est critique pour la securite du fonctionnement sont identifi es dans le present manuel. Suivre ces procedures lors de
chaque remplacement de composants critiques, ou lorsqu’un mauvais fonctionnement suspecte.
