Sony KV-XA21M30 Service Manual ▷ View online
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29
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KV
-XA21M30/XA21M63
-XA21M30/XA21M63
RM-952
KV
-XA21N90
-XA21N90
RM-915
22
Additional Information
Overview of controls
TV front panel
CHANNEL
POWER
STANDBY/
STEREO/
WAKE UP
STEREO/
WAKE UP
SELECT
VIDEO INPUT
VOLUME
AUTO
PROGR
R
VIDEO 2 INPUT
VIDEO L (MONO) AUDIO
2
L(MONO)
R
PROGR
VOLUME
VIDEO INPUT
SELECT AUTO
PROGR
Page
Function
Preset channels automatically.
5
Select channel number.
10
Turn off completely or
10
turn on the TV.
Adjust volume.
Adjust volume.
10
Standby indicator.
10
Select TV or video input.
11
Select the desired item.
11
Wake up indicator.
12
Stereo indicator.
17
Headphone jack.
–
AUTO PROGR
CHANNEL +/–
POWER
CHANNEL +/–
POWER
VOLUME +/–
STANDBY
STANDBY
TV/VIDEO
SELECT
WAKE UP
STEREO
i
SELECT
WAKE UP
STEREO
i
Button
(KV-XA21N90)
23
Additional Information
Remote Control
Page
Button
Function
TV
1
2
3
4
6
7
8
9
0
5
POWER
TV
DISPLAY
VIDEO
MUTING
MTS
SOUND
MODE
FAVORITE
WAKE UP
SLEEP
CABLE
AUTO
PROGRAM
ADD/
ERASE
JUMP
ENT
CH
VOL
SELECT
PIC MODE
CABLE
POWER
POWER
AUTO PROGRAM
CH +/–
ADD/ERASE
0-9
CH +/–
ADD/ERASE
0-9
ENT
VOL +/–
MUTING
MUTING
TV
VIDEO
JUMP
DISPLAY
SELECT
JUMP
DISPLAY
SELECT
+/–
Timer operations
WAKE UP
SLEEP
SLEEP
PIC MODE
SOUND MODE
SOUND MODE
FAVORITE
Stereo/bilingual operations
MTS
Stereo/bilingual operations
MTS
Select the cable TV.
5
Turn off temporarily or turn
8
on the TV.
Preset channels automatically.
Preset channels automatically.
8
Select channel number.
9
Preset channels manually.
9
Input numbers.
10
Confirm input number.
10
Adjust volume.
10
Mute the sound.
11
Display the TV program.
11
Select TV or video input.
11
Jump to previous channel number.
11
Display on-screen information.
11
Select the desired items.
11
Adjust item.
11
Set TV to turn on automatically.
12
Set TV to turn off automatically.
12
Select picture mode.
13
Select sound mode.
13
Display favorite channels.
15
Select stereo/bilingual mode.
17
(KV-XA21N90)
– 30 –
KV
-XA21M30/XA21M63
-XA21M30/XA21M63
RM-952
KV
-XA21N90
-XA21N90
RM-915
2-6. J3 BOARD AND TERMINAL
BRACKET REMOVAL
2 Terminal bracket
3 J3 Board
(KV-XA21M63 only)
(KV-XA21M63 only)
One screw
(+BVTP 4x16)
(+BVTP 4x16)
1
SECTION 2
DISASSEMBLY
2-2. REAR COVER REMOVAL
2-3. SPEAKER REMOVAL
2-4. CHASSIS ASSY REMOVAL
2-5. F, H4 AND K2 BOARDS
REMOVAL
2 Two screws washer head
(+P4 x16)
(+P4 x16)
5 Two claws
1 Three connectors
4 F board
4 H4 Board bracket
5 K2 Board bracket
1 Two screws
(+BVTP 4
(+BVTP 4
× 16)
2 Six screws
(+BVTP 4
(+BVTP 4
× 16)
3 Rear Cover
2-1. 3D SPEAKER BOX REMOVAL
1 3D Speaker box assy
(KV-XA21M63 only)
(KV-XA21M63 only)
Black wire
Red wire
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31
–
KV
-XA21M30/XA21M63
-XA21M30/XA21M63
RM-952
KV
-XA21N90
-XA21N90
RM-915
2-8. REPLACEMENT OF PARTS
For replacement of light guide,unscrew
them, exchange with new parts and fix
them with screws respectively.
them, exchange with new parts and fix
them with screws respectively.
2-8-2. Replacement of Power
Button
2-8-1. Replacement of Light Guide
1 Push the claw to direction
of arrow and remove
of arrow and remove
2 Spring compression
3 Power Button
One screw
(+BVTP 3
(+BVTP 3
× 12)
2-9. PICTURE TUBE REMOVAL
Note:
Note:
•
The oicture tube for Australia model is upside down, and the position for the
anode-cap and the tension spring are changed accordingly.
anode-cap and the tension spring are changed accordingly.
•
Please remove necessary CRT support located on top left, top right, prior to
removing
the CRT.
removing
the CRT.
@º
@º
!¶
Demagnetic coil
4 Two screws
(washer head)
(+P 4
(+P 4
× 16)
!º
Two screws
(Tapping 7+
Crown Washer)
(Tapping 7+
Crown Washer)
3 Speaker
(13
× 7cm)
7 Speaker
(15
× 6.5cm)
!£ Tension
spring
!¡
Chassis assy
!¢ Deflection
yoke
!™
C1 board
!ª
Anode cap
Coating earth assy
!∞
Picture tube
!¢ Cushion
9 Two screws
(Tapping 7+
Crown Washer)
Crown Washer)
8 Two screws
(washer head)
(+P 4
(+P 4
× 16)
@ª
Holder DGC
Cuchion (50x550) DGC
Cushion (50x550) DGC
2-7. SERVICE POSITION
Note:
1. Disconnect the speaker connection on the right side.
2. Undress necessary wires that creates tension while
2. Undress necessary wires that creates tension while
placing the chassis into Service Position.
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32
–
KV
-XA21M30/XA21M63
-XA21M30/XA21M63
RM-952
KV
-XA21N90
-XA21N90
RM-915
•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.
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.
3 Do not turn the foot of rubber over too hard.
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 c.
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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