KV-XA25M80 - Sony TV Service Manual (repair manual). Page 21

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 21 
KV
-XA25M80/XA25M83/XA25N90
RM-954
RM-914
28
Additional Information
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
• Check the antenna cable and connection
on the TV, VCR and on the wall.
• Display the “CH PRESET” menu and
select “MANUAL PROGRAM” to preset
the channel again.
• 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 are noisy,
display the “CH PRESET” menu and
check the TV system (“TV SYS”) setting,
then select “AUTO PROGRAM” to preset
the channels again.
• If the sound of some channels are noisy,
select the channel, then display the “CH
PRESET” menu and select the appropriate
TV system (“TV SYS”).
• Check the power cord, antenna and the
VCR connections.
• Press ?/1 (power).
• Press ! (main power) on the TV to turn
off the TV for 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
or channel presetting
is inappropriate or
incomplete.
• The power cord,
antenna or VCR is not
connected.
• The TV is not turned
on.
Snowy picture
Noisy sound
Distorted picture
Noisy sound
Good picture
Noisy sound
No picture
No sound
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25
24
24
4
10
10
29
Additional Information
• Press 2 + to increase the volume level.
• Press % to cancel the muting.
• 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.
• Adjust the antenna direction. Contact a
Sony dealer for advice.
• Turn off or disconnect the booster if it is
in use.
• Display the “PICTURE” menu and select
“ADJUST” of “PICTURE MODE”, then
adjust the “COLOR” level.
• Display the “SETUP” menu and check the
color system (“COLOR SYS”) setting
(usually set this to “AUTO”).
• 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 ! (main power) on the TV to turn
off the TV for about five minutes, then
turn it on again.
• The volume level is
too low.
• The sound is muted.
• 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 inappropriate.
• Use of a booster is
inappropriate.
• The color level setting
is too low.
• The color system
setting is
inappropriate.
• The antenna direction
is inappropriate.
• The magnetic
disturbance from
external speakers or
other equipment, or
the direction of the
earth’s magnetic field
may affect the TV.
Possible cause
Symptom
Solutions
Page
11
11
26
19
22
Good picture
No sound
Dotted lines or
stripes
Double images or
“ghosts”
No color
Abnormal color
patches
continued
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