Sony KV-HF21M50 Service Manual ▷ View online
– 21 –
KV
-HF21M50/XF21M80
-HF21M50/XF21M80
RM-952
23
Additional Information
Self-diagnosis
function (For KVHF21M50)
function (For KVHF21M50)
Your TV is equipped with a self-diagnosis function. If there is a
problem with your TV, the u indicator flashes red. The number of
times the u indicator flashes indicates the possible causes.
problem with your TV, the u indicator flashes red. The number of
times the u indicator flashes indicates the possible causes.
1
Check that the u indicator flashes red a number of times between 3-second
intervals.
intervals.
2
Count the number of times the u indicator flashes.
3
Press U (main power) to turn off your TV.
4
Inform your nearest Sony service center about the number of times the
u
u
indicator flashes.
Be sure to note the model name and serial number located on the rear of
your TV.
your TV.
Front of TV
u
indicator
ONE-PUSH AUTOMATIC PROGRAMING
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 this 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 this 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
!¶
– 22 –
KV
-HF21M50/XF21M80
-HF21M50/XF21M80
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 screws
(+BVTP 4
×
16)
2
Rear cover
2-3. F BRACKET REMOVAL
1
Three connectors
2
F board
Lever
One screw
(+BVTP 4x16)
(+BVTP 4x16)
2-4. SERVICE POSITION
(Note: Remove F Bracket first.)
– 23 –
KV
-HF21M50/XF21M80
-HF21M50/XF21M80
RM-952
2-5-2. REPLACEMENT OF LIGHT GUIDE
For replacement of light guide (KV-XF21M80), cut the welded portions from it,
exchange with new parts, fix it with screw (+BVTP)
exchange with new parts, fix it with screw (+BVTP)
2-5. REPLACEMENT OF PARTS
For replacement of the Multi Button (KV-XF21M80), cut the welded portions from them,
exchange with the new parts, and fix them with screws (+BVTP) respectively.
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)
Multi button
Cut
For replacement of the Multi Button (KV-HF21M50), unscrew it to exchange with new
parts, and fix it with screws (+BVTP).
parts, and fix it with screws (+BVTP).
Multi button
Two screws
(+BVTP 3
(+BVTP 3
×
12)
Light guide
One screw
(+BVTP 3
(+BVTP 3
×
12)
Light guide
Cut
(XF21M80)
(HF21M50)
(XF21M80)
(HF21M50)
Light guide
For replacement of Light Guide (KV-HF21M50), pull it out to exchange with the new
part.
part.
– 24 –
KV
-HF21M50/XF21M80
-HF21M50/XF21M80
RM-952
2-8. PICTURE TUBE REMOVAL
2
A board
4
C3 (KV-HF21M50)
/C5 board (KV-XF21M80)
7
Neck assy
5
Deflection yoke
Cushion
6
Four screws
(Tapping screws)
1
Anode cap
3
F board
2-6. TERMINAL BRACKET REMOVAL
A board
One screw
(+BVTP 4x16)
(+BVTP 4x16)
Terminal board bracket
2-7. DEGAUSS COIL REMOVAL
1
Demagnetization coil
2
Tension spring
Picture tube
Click on the first or last page to see other KV-HF21M50 service manuals if exist.