Sony KV-20FS100 (serv.man2) Service Manual ▷ View online
SERVICE MANUAL
BA-6
CHASSIS
TRINITRON
®
COLOR TELEVISION
MODEL NAME
REMOTE COMMANDER
DESTINATION
CHASSIS NO.
9-965-922-91
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
CORRECTION- 1
SUBJECT: SCREEN (G2) INSTRUCTIONS
A BOARD IC VOLTAGE LIST
Correct the service manual as shown.
File this Correction with the service manual.
☛
: Corrected Item
Section 2: Set-Up Adjustments (Page 13)
2-4. Screen (G2) added Step #4 to instructions
Section 5: Diagrams (Page 34)
Replaced A Board IC Voltage List
— 13 —
KV-20FS100/20FV300/21FM100/21FS100/
21FV300/24FV300/25FV300
DYNAMIC CONVERGENCE ADJUSTMENT
Before performing this adjustment, perform Horizontal and Vertical
Static Convergence Adjustment.
1. Slightly loosen deflection yoke screw.
2. Remove deflection yoke spacers.
3. Move the deflection yoke for best convergence as
2. Remove deflection yoke spacers.
3. Move the deflection yoke for best convergence as
shown below:
B
G
R
G
B
R
G
B
R
R
R
G
B
G
B
G
B
R
B
G
R
G
B
G
B
R
R
G
B
G
G
B
R B
R
R
4. Tighten the deflection yoke screw.
5. Install the deflection yoke spacers.
5. Install the deflection yoke spacers.
TLH PLATE ADJUSTMENT
1. Input crosshatch pattern.
2. Adjust PICTURE QUALITY to standard, PICTURE and
2. Adjust PICTURE QUALITY to standard, PICTURE and
BRIGHTNESS to 50%, and OTHER to standard.
3 Adjust the Horizontal Convergence of red and blue dots by tilting
the TLH plate on the deflection yoke.
(TLV)
YCH
XCV
TLV
CV
Board
RV1750
V.STAT
TLH Plate
B R R B
(R)(B) (B)(R)
TLH+
TLH-
4. Adjust XCV core to balance X axis.
5. Adjust YCH VR to balance Y axis.
6. Adjust vertical red and blue convergence with V.TILT (TLV VR.)
Note: Perform adjustment 3-6 while tracking items 1 and 2.
5. Adjust YCH VR to balance Y axis.
6. Adjust vertical red and blue convergence with V.TILT (TLV VR.)
Note: Perform adjustment 3-6 while tracking items 1 and 2.
SCREEN-CORNER CONVERGENCE
1. Affix a permalloy assembly corresponding to the misconverged
areas:
b
a
c
d
a
b
d
a-d: screen-corner
misconvergence
c
2-3. FOCUS
1. Adjust FOCUS control for best pictures.
2-4. SCREEN (G2)
1. Input a dot pattern.
2. Set the PICTURE and BRIGHTNESS controls at minimum and
2. Set the PICTURE and BRIGHTNESS controls at minimum and
COLOR control at normal.
3. Adjust SBRT, GCUT, BCUT in service mode with an oscilloscope as
shown below so that voltages on the red, green, and blue cathodes
are 170 ± 2VDC.
Pedestal
170 ± 2VDC
Ground
4. Observe the screen and adjust SCREEN (G2) VR in FBT to obtain
the faintly visible background of dot signal.
Focus (FV)
Screen (G2)
— 34 —
KV-20FS100/20FV300/21FM100/21FS100/
21FV300/24FV300/25FV300
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Sony Corporation
Sony Technology Center
Technical Services
Service Promotion Department
9-965-922-91
English
2002IJ74WEB-1
Printed in USA
© 2002.9
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