Sony KV-XF21M80 (serv.man3) Service Manual ▷ View online
– 17 –
KV
-XF21M80/XF21M8J
-XF21M80/XF21M8J
RM-952
21
Additional Information
Possible cause
Symptom
Solutions
Picture slant
Lines moving across the
TV screen.
The
u
indicator on your
TV flashes red a number
of times between
3-second intervals.
TV cabinet creaks.
A “boom” sound is heard
when the TV is turned on.
• Press SELECT until “PIC ROTATION”
appears on the screen, then press + or –
to align the picture to the TV screen.
(page 12)
to align the picture to the TV screen.
(page 12)
• Use the fine tuning (FINE) function.
(page 10)
• Contact your nearest Sony service
center.
—
—
• The terrestrial magnetism
affects your TV set.
• There is interference from
external sources, e.g.,
heavy machineries, nearby
broadcast station.
heavy machineries, nearby
broadcast station.
• Your TV may need service.
• Changes in room
temperature sometimes
make the TV cabinet
expand or contract, making
a noise. This does not
indicate a malfunction.
make the TV cabinet
expand or contract, making
a noise. This does not
indicate a malfunction.
• The TV’s demagnetizing
function is working. This
does not indicate a
malfunction.
does not indicate a
malfunction.
22
Additional Information
Identifying parts and controls
Refer to the pages indicated in parentheses ( ) for details.
Front panel
1
U
(main power) button (11)
2 PROGR +/– (program) buttons (11)
3
3
¸
+/– (volume) buttons (11)
4
…
(TV/video) button (12)
5 AUTO PROGR (program) button (5)
6 SELECT button (10)
7
6 SELECT button (10)
7
2
(headphone) jack
ONE-PUSH AUTOMATIC PROGRAMING
ONE-PUSH AUTOMATIC PROGRAMMING
2
– 18 –
KV
-XF21M80/XF21M8J
-XF21M80/XF21M8J
RM-952
23
Additional Information
Remote Control
9
!º
!¡
!™
!£
!¢
!∞
!§
TV
1
2
3
4
6
7
8
9
÷
0
5
JUMP
SOUND
MODE
FAVORITE
PROGR
SELECT
p
PIC MODE
p
Á
TV
1
2
3
4
6
7
8
9
÷
0
5
JUMP
SOUND
MODE
FAVORITE
PROGR
SELECT
p
PIC MODE
p
Á
Button function
For general TV operations
For Teletext operations
1 u (power) button (11)
2 ; (TV) button (12)
3 Number buttons (11)
4 JUMP button (12)
5 PROGR +/– buttons (11)
6 SELECT button (9)
7 PIC MODE button (14)
8 +/– buttons (9)
9
2 ; (TV) button (12)
3 Number buttons (11)
4 JUMP button (12)
5 PROGR +/– buttons (11)
6 SELECT button (9)
7 PIC MODE button (14)
8 +/– buttons (9)
9
(display) button (12)
!º ¤ (muting) button (12)
!¡ … (video) button (12)
!™ . +/– (volume) buttons (11)
!£ A/B button
!¡ … (video) button (12)
!™ . +/– (volume) buttons (11)
!£ A/B button
(not used for these models)
!¢ Timer setting buttons (13)
(wake up timer)
(sleep timer)
(sleep timer)
!∞ FAVORITE button (16)
!§ SOUND MODE button (14)
!¶ Teletext operation buttons
!¶ Teletext operation buttons
(not used for these models)
(text)
(enlarge)
(reveal)
(hold)
(index)
(text clear)
p
(FASTEXT: red, green, yellow, blue)
Names/symbols of buttons on the
remote are indicated in different
colors to represent the available
functions.
remote are indicated in different
colors to represent the available
functions.
Label color
White
Green
1
2
3
4
5
6
7
8
!¶
– 19 –
KV
-XF21M80/XF21M8J
-XF21M80/XF21M8J
RM-952
SECTION 2
DISASSEMBLY
2-2. CHASSIS ASSY REMOVAL
1
Chassis assy
Lever
Lever
2-1. REAR COVER REMOVAL
1
Four screws
(+BVTP 4
×
16)
1
One screw
(+BVTP 4
×
16)
2
Rear cover
2-3. F BRACKET REMOVAL
3
One screw
(+BVTP 3
×
12)
1
Three connectors
2
F board
Lever
2-4. SERVICE POSITION
(Note: Remove F Bracket first.)
– 20 –
KV
-XF21M80/XF21M8J
-XF21M80/XF21M8J
RM-952
2-6. TERMINAL BRACKET REMOVAL
A board
Terminal board bracket
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
2-7. DEGAUSS COIL REMOVAL
1
Demagnetization coil
2
Tension spring
Picture tube
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