Sony KV-XF25M21 Service Manual ▷ View online
– 25 –
KV
-XF25M21/XF25M63/XF25M93
-XF25M21/XF25M63/XF25M93
RM-954
SECTION 2
DISASSEMBLY
2-3. CHASSIS ASSY REMOVAL
2-1. 3D SPEAKER BOX REMOVAL (KV-XF25M63/XF25M93 only)
1
Chassis assy
2-2. REAR COVER REMOVAL
1
3D Speaker box assy
Red wire
Black wire
1
Eight screws
(+BVTP 4
×
16)
1
Three screws
(+BVTP 4
×
16)
1
One screw
(+BVTP 4
×
16)
2
Rear cover
2-4. F BRACKET REMOVAL
4
Two screws
(+BVTP 3
×
12)
5
F bracket
2
Two claws
1
Three connectors
3
F board
6
Two screws
(+BVTP 3
×
12)
– 26 –
KV
-XF25M21/XF25M63/XF25M93
-XF25M21/XF25M63/XF25M93
RM-954
2-6-2. REPLACEMENT OF LIGHT GUIDE
2-5. SERVICE POSITION
(Note: Remove F Bracket first.)
2-6. REPLACEMENT OF PARTS
For replacement of the Control Button and Light Guide, unscrew them, exchange with
the new parts, and fix them with screws (+BVTP) respectively.
the new parts, and fix them with screws (+BVTP) respectively.
2-6-1. REPLACEMENT OF CONTROL BUTTON
Control button
Two screws
(+BVTP 3
(+BVTP 3
×
12)
One screw
(+BVTP 3
(+BVTP 3
×
12)
2-7. PWB HOLDER REMOVAL (FOR KV-XF25M21 ONLY)
2
Two screws
(+BVTP 3
×
12)
PWB holder
– 27 –
KV
-XF25M21/XF25M63/XF25M93
-XF25M21/XF25M63/XF25M93
RM-954
2-10. H3 BOARD REMOVAL
2-9. V1 BOARD REMOVAL (KV-XF25M21 only)
1
Two claws
2
V1 board
3
Two connectors
1
Two connectors
4
Four claws
5
H3 Board
2
Four connectors
3
B3 Board
5
A Board
3
Four connectors
1
Two screws
(+BVTAP 3
×
12)
2
Three screws
(+BVTAP 3
×
12)
2-11. A AND B3 BOARDS REMOVAL
2-8. TERMINAL BRACKET REMOVAL
1
Two screws
(+BVTP 3
×
12)
2
Two claws
3
Terminal bracket
– 28 –
KV
-XF25M21/XF25M63/XF25M93
-XF25M21/XF25M63/XF25M93
RM-954
2-12. PICTURE TUBE REMOVAL
NOTE:
The picture tube for New Zealand model are upside-down, and the
position for the anode-cap and tension spring is changed accordingly.
position for the anode-cap and tension spring is changed accordingly.
•
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
!£
Four DGC clip
!¢
DGC
band
band
!∞
Demagnetic coil
!™
Four claws
1
Two screws
(washer head)
(+P 4
(washer head)
(+P 4
×
16)
2
Speaker
(5cm)
(5cm)
!¶
Two screws
(Tapping)
(Tapping)
3
Speaker
(15
(15
×
6.5cm)
5
Speaker
(5cm)
(5cm)
6
Speaker
(15
(15
×
6.5cm)
!§
Tension
spring
spring
8
Chassis assy
!¡
Deflection
yoke
yoke
!º
Neck assy
9
C board
7
Anode cap
!•
Picture tube
Cushion
!¶
Two screws
(Tapping)
(Tapping)
!ª
Two screws
(+P 3
(+P 3
×
12)
4
@º
Two screws
(washer head)
(+P 4
(washer head)
(+P 4
×
16)
Two screws
(+P 3
(+P 3
×
12)
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