KV-XF21N90 - Sony TV Service Manual (repair manual). Page 16

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19

Additional Information

If you find any problem while viewing your TV, please check the following guide. If
any problem persists, contact your Sony dealer .

• Check the antenna cable and connection

on the TV, VCR and on the wall. (page 4)

• Preset the channel again. (page 9)

• 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, then press AUTO PROGR to
preset the channels again. (page 8)

• Check the power cord, antenna and the

VCR connections.

• Press POWER on the remote.

• 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.

• Channel presetting is

inappropriate or
incomplete.

• The power cord, antenna

or VCR is not connected.

• The TV is not turned on.

20

Additional Information

• Press VOL + to increase the volume level.

• Press MUTING to cancel the muting.

• Press MTS until a better sound is heard.

• 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.

• 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 14)

• 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.

• Press MTS until a good sound is heard.

• 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 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.