DOWNLOAD Sony KV-XF25M30 Service Manual ↓ Size: 1.76 MB | Pages: 71 in PDF or view online for FREE

Model
KV-XF25M30
Pages
71
Size
1.76 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-xf25m30.pdf
Date

Sony KV-XF25M30 Service Manual ▷ View online

– 25 –
KV
-XF25M30/XF25M50/XF25M63
KV
-XF25M65/XF25M90
RM-954
30
Additional Information
Additional Information
Self-diagnosis
function
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.
1
Check that the red flashes of the u indicator is about 3 seconds per interval.
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
 indicator flashes.
Be sure to note the model name and serial number located on the rear of
your TV.
Front of TV
31
Additional Information
Snowy picture
Noisy sound
Distorted picture
Noisy sound
Good picture
Noisy sound
No picture
No sound
Troubleshooting
If you find any problem while viewing your TV, please check the following guide. If
any problem persists, contact your Sony dealer .
Possible cause
Symptom
Solutions
Additional Information
continued
• Check the antenna cable and connection
on the TV, VCR and on the wall.
(page 4)
• Display the CH PRESET menu and
select “MANUAL PROGRAM” to
preset the channel again. (page 26)
• Check the antenna type (VHF/UHF).
Contact a Sony dealer for advice.
• Adjust the antenna direction. Contact a
Sony dealer for advice.
• Try using a booster.
• Turn off or disconnect the booster if it is
in use.
• If the sound of all the channels is noisy,
display the CH PRESET menu and
select the appropriate TV system (page
27), then select “AUTO PROGRAM” to
preset the channels again. (page 29)
• If the sound of some channels is noisy,
select the channel, then  display the CH
PRESET menu and select the
appropriate TV system (TV SYS). (page
27)
• Check the power cord, antenna and the
VCR connections.
• Press u (power).
• Press U (main power) on the TV to turn
off the TV about five seconds, then turn
it on again.
• Connection is loose or the
cable is damaged.
• Channel presetting is
inappropriate or
incomplete.
• The antenna type is
inappropriate.
• The antenna direction is
inappropriate.
• Signal transmission is low.
• Broadcast signals are too
strong.
• The TV system setting is
inappropriate.
• The power cord, antenna or
VCR is not connected.
• The TV is not turned on.
– 26 –
KV
-XF25M30/XF25M50/XF25M63
KV
-XF25M65/XF25M90
RM-954
32
Additional Information
Possible cause
Symptom
Solutions
Good picture
No sound
Dotted lines or stripes
Double images or
“ghosts”
No color
Abnormal color patches
TV cannot receive stereo
broadcast signal
(Except KV-XF25M50)
Troubleshooting (continued)
• Press 
¸
 + to increase the volume level.
• Press ¤ to cancel the muting.
• Press A/B 
 until a better sound is
heard. (Except KV-XF25M50)
• Do not use a hair dryer or other
equipment near the TV.
• Adjust the antenna direction for
minimum interference. Contact a Sony
dealer for advice.
• Use a highly directional antenna.
• Use the fine tuning (FINE) function.
(page 28). (KV-XF25M65 only)
• Adjust the antenna direction. Contact a
Sony dealer for advice.
• Turn off or disconnect the booster if it is
in use.
• Display the A/V CONTROL menu and
select “ADJUST” of PICTURE MODE,
then adjust the COLOR level. (page 21
and 22)
• Display the CH PRESET menu and
check the color system (COL SYS)
setting (usually set this to AUTO).
(page 29)
• Adjust the antenna direction. Contact a
Sony dealer for advice.
• Keep external speakers or other
electrical equipment away from the TV.
Do not move the TV while the TV is
turned on. Press U (main power) on the
TV to turn off the TV for about five
minutes, then turn it on again.
• Press A/B 
 until “AUTO” appears on
the screen.
• The volume level is too
low.
• The sound is muted.
• Broadcast signal has a
transmission problem.
• There is local interference
from cars, neon signs, hair
dryers, power generators,
etc.
• Broadcast signals are
reflected by nearby
mountains or buildings.
• The antenna direction is
inapproprite.
• Use of a booster is
inappropriate.
• The color level setting is
too low.
• The color system setting is
inappropriate.
• The antenna direction is
inapproriate.
• The magnetic disturbance
from external speakers or
other equipment, or the
direction of the earth’s
magnetic field may affect
the TV.
• The stereo reception
setting is inappropriate.
33
Additional Information
Stereo broadcast sound
switches on and off or is
distorted.
or
The sound switches
between monaural and
stereo frequently.
(Except KV-XF25M50)
“100” appears on the top
of the screen and no
Teletext display.
(KV-XF25M65 only)
Teletext display is
incomplete
(picture snowy or double
images).
(KV-XF25M65 only)
Picture slant
Lines moving across the
TV screen.
(KV-XF25M65 only)
The 
u
 indicator on your
TV flashes red for about 3
seconds per interval .
TV cabinet creaks.
A “boom” sound is heard
when the TV is turned on.
Possible cause
Symptom
Solutions
• Check the antenna cable and connection
on the TV, VCR and on the wall. (page 4)
• Adjust the antenna direction.Contact a
Sony dealer for advice.
• Press A/B 
 until a better sound is
heard.
• Check the antenna cable and connection
on the TV, VCR and on the wall. (page 4)
• Adjust the antenna direction. Contact a
Sony dealer for advice.
• Try using a booster.
• Use the fine tuning (FINE) function.
(page 28)
• Display the SET UP menu and adjust
“PIC ROTATION” so that the picture is
aligned to the TV screen. (page 25)
• Use the fine tuning (FINE) function.
(page 28)
• Contact your nearest Sony service
center.
• Connection is loose or the
cable is damaged.
• The antenna direction is
inappropriate.
• Broadcast signal has a
transmission problem.
• The channel carries no
Teletext broadcast.
• Connection is loose or the
cable is damaged.
• The antenna direction is
inappropriate.
• Signal transmission is too
low.
• The terrestrial magnetism
affects your TV set.
• There is interference from
external sources, e.g.,
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.
• The TV’s demagnetizing
function is working. This
does not indicate a
malfunction.
– 27 –
KV
-XF25M30/XF25M50/XF25M63
KV
-XF25M65/XF25M90
RM-954
34
Additional Information
ONE-PUSH  AUTOMATIC  PROGRAMING
PROGR
Identifying parts and controls
Refer to the pages indicated in parentheses ( ) for details.
Front panel
1
U
 (main power) button (9)
2 AUTO PROGR (program) button (5)
3 MENU button (20)
4 PROGR +/– (program) buttons (9)
5
¸
 +/– (volume) buttons (9)
6
 (TV/video) button (10)
7
2
 (headphones) jack
35
Additional Information
Button function
For general TV operations
For Teletext operations
1 ¤ (muting) button (10)
2
(display) button (10)
3 u (power) button (9)
4 … (video) button (10)
5 ; (TV) button (10)
6 Number buttons (9)
7 JUMP button (10)
8 Menu operation buttons (20)
MENU button
+ or – buttons
ENTER button
9 PROGR +/– button (9)
!º A/B button (15)
(Except KV-XF25M50)
!¡ Timer setting buttons (11)
(wake up timer)
(sleep timer)
!™ . (volume) +/– buttons (9)
Remote Control
1
4
7
-/--
2
5
8
0
3
6
9
FAVORITE
SOUND
MODE
PIC MODE
ENTER
MENU
A/B
SURROUND
5
4
3
6
7
8
9
!™
!£ SOUND MODE button (12)
!¢ SURROUND button (14)
!∞ FAVORITE button (13)
!§ PIC MODE button (12)
!¶ Teletext operation buttons (17, 18)
(KV-XF25M65 only)
 (text)
 (enlarge)
 (reveal)
 (hold)
 (index)
 (text clear)
p
 (FASTEXT: red, green, yellow, blue)
1
4
7
-/--
2
5
8
0
3
6
9
FAVORITE
SOUND
MODE
PIC MODE
ENTER
MENU
A/B
SURROUND
!∞
Names/symbols of buttons on the
remote are indicated in different
colors to represent the available
functions.
Label color
White
Green
– 28 –
KV
-XF25M30/XF25M50/XF25M63
KV
-XF25M65/XF25M90
RM-954
SECTION 2
DISASSEMBLY
2-3. CHASSIS ASSY REMOVAL
2-1. 3D SPEAKER BOX REMOVAL (KV-XF25M63/XF25M65 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)
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