Sony TRINITRON KV-XF21M61 Service Manual page 21

Troubleshooting
If you find any problem while viewing your TV, please check the following guide. If
any problem persists, contact your Sony dealer .
Symptom Solutions
Snowy picture • Check the antenna cable and connection
on the TV, VCR and on the wall. (page 4)
• Press SELECT until "MANUAL
PROGRAM" appears on the screen then
preset the channel again. (page 10)
Noisy sound
• 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
Distorted picture
in use.
Noisy sound
Good picture
• If the sound of all the channels are
noisy, then press AUTO PROGR to
preset the channels again. (page 9)
• If the sound of some channels are noisy,
select the channel, then select the
appropriate TV system. (page 10)
Noisy sound
No picture
• Check the power cord, antenna and the
VCR connections.
• Press u (power).
• Press U (main power) on the TV to turn
off the TV for about five seconds, then
No sound
turn it on again.
26
Additional Information
Good picture
Possible cause
• Connection is loose or the
cable is damaged.
No sound
• Channel presetting is
inappropriate or
incomplete.
Dotted lines or stripes
• The antenna type is
inappropriate.
• The antenna direction is
inappropriate.
• Signal transmission is low.
Double images or
• Broadcast signals are too
"ghosts"
strong.
No color
• Channel presetting is
inappropriate or
incomplete.
• The TV system setting is
inappropriate.
Abnormal color patches
• The power cord, antenna
or VCR is not connected.
• The TV is not turned on.
TV cannot receive stereo
broadcast signal
(Except KV-XF21M80)
MC-Service
Symptom
Solutions
• Press ¸ + to increase the volume level.
• Press ¤ to cancel the muting.
• Press A/B H until a better sound is
heard. (Except KV-XF21M80 )
• 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 11)
• Adjust the antenna direction. Contact a
Sony dealer for advice.
• Turn off or disconnect the booster if it is
in use.
• Press SELECT until "COLOR" appears
on the screen, then press + or – to adjust
the color level. (page 16)
• Press SELECT until "COL SYS " appears
on the screen, then check the color
system setting (usually set this to
"AUTO"). (page 11).
• 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 H until "AUTO" appears
on the screen
Possible cause
• 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.
• There are magnetic effects
from external speakers or
other electrical equipment
that may affect the TV.
• The direction of the earth's
magnetic field may affect
the TV.
• The stereo reception
setting is inappropriate.
continued
27
Additional Information