Sony KV-XF21M31 Service Manual ▷ View online
– 21 –
KV
-XF21M31
-XF21M31
RM-952
SECTION 2
DISASSEMBLY
2-2. CHASSIS ASSY REMOVAL
1
Chassis assy
Lever
Lever
2-1. REAR COVER REMOVAL
1
Eight screws
(+BVTP 4
×
16)
1
Two screw
(+BVTP 4
×
16)
2
Rear cover
2-3. F BOARD REMOVAL
1
Three connectors
2
F board
Lever
2-4. SERVICE POSITION
(Note: Remove F Board first.)
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22
–
KV
-XF21M31
-XF21M31
RM-952
2-7. TERMINAL BRACKET REMOVAL
A board
Terminal board bracket
One screw
(+BVTP 4
(+BVTP 4
×
16)
2-5-2. REPLACEMENT OF LIGHT GUIDE
2-5. REPLACEMENT OF PARTS
For replacement of the Multi Button and Light Guide, cut the welded portions from
them, exchange with the new parts, and fix them with screws (+BVTP) respectively.
them, exchange with the new parts, and fix them with screws (+BVTP) respectively.
2-5-1. REPLACEMENT OF MULTI BUTTON
Multi button
Two screws
(+BVTP 3
(+BVTP 3
×
12)
Light guide
One screw
(+BVTP 3
(+BVTP 3
×
12)
Multi button
Cut
Light guide
Cut
2-6. V1 BOARD REMOVAL
1
Two claws
2
V1 board
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23
–
KV
-XF21M31
-XF21M31
RM-952
2-8. DEGAUSS COIL REMOVAL
1
Demagnetization coil
2
Tension spring
Picture tube
2-9. PICTURE TUBE REMOVAL
2
A board
4
C5 board
7
Neck assy
5
Deflection yoke
Cushion
6
Four screws
(Tapping screws)
1
Anode cap
3
F board
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KV
-XF21M31
-XF21M31
RM-952
•
REMOVAL OF ANODE-CAP
NOTE : After removing the anode, short circuit the anode of the picture tube and
the anode cap to the metal chassis, CRT shield or carbon paint on the
CRT.
CRT.
•
REMOVING PROCEDURES
1
Do not damage the surface of anode-caps with sharp shaped objects.
2
Do not press the rubber too hard so as not to damage the inside of anode-cap.
A metal fitting called the shatter-hook terminal is built into the rubber.
A metal fitting called the shatter-hook terminal is built into the rubber.
3
Do not turn the foot of rubber over too hard.
The shatter-hook terminal will stick out or damage the rubber.
The shatter-hook terminal will stick out or damage the rubber.
•
HOW TO HANDLE AN ANODE-CAP
3
When one side of the rubber cap is separated from the anode button, the anode-cap
can be removed by turning up the rubber cap and pulling it up in the direction of the
arrow
can be removed by turning up the rubber cap and pulling it up in the direction of the
arrow
c
.
2
Using a thumb pull up the rubber cap firmly in the direction indicated by the arrow
b
.
1
Turn up one side of the rubber cap in the direction indicated by the arrow
a
.
a
a
b
b
c
Anode button
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