Read Sony KV-XF21N90 Service Manual online
– 17 –
KV
-XF21N90
-XF21N90
RM-915
21
Additional Information
Additional Information
Stereo broadcast sound
switches on and off or is
distorted.
or
The sound switches
between monaural and
stereo frequently.
The standby indicator on
your TV flashes red a
number of times between
3-second intervals.
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 MTS until a good sound is heard.
• Contact your nearest Sony service
center. (page 18)
—
—
• Connection is loose or the
cable is damaged.
• The antenna direction is
inappropriate.
• Broadcast signal has a
transmission problem.
• 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.
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.
does not indicate a
malfunction.
22
Additional Information
Identifying parts and controls
Refer to the pages indicated in parentheses ( ) for details.
Front panel
1 POWER button (10)
2 CHANNEL +/– buttons (10)
3 VOLUME +/– buttons (10)
2 CHANNEL +/– buttons (10)
3 VOLUME +/– buttons (10)
4 TV/VIDEO button (11)
5 AUTO PROGR (program) button (5)
6 SELECT button (9)
7
5 AUTO PROGR (program) button (5)
6 SELECT button (9)
7
2
(headphone) jack
VIDEO 2 INPUT
AUDIO
VIDEO
CHANNEL
VOLUME
TV/VIDEO
POWER
POWER
CHANNEL
VOLUME
TV/VIDEO
VIDEO 2 INPUT
2
VIDEO
AUDIO
SELECT
AUTO
PROGR
PROGR
2
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