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52
Additional Information
Troubleshooting (continued)
Good picture/Abnormal
sound
Symptom
Possible cause Solutions
The TV system setting is
inappropriate.
• If the sound of all the channels
is abnormal, display the TV SET
UP menu and select the
appropriate TV system (TV
SYS), then preset the channels
again. (pages 11 and 12)
• If the sound of some channels is
abnormal, display the MANUAL
PROGRAM menu in the TV SET
UP menu and select the
appropriate TV system (TV SYS)
(page 30).
Snowy picture/Abnormal
sound
The connection is loose or
the cable is damaged.
The channel presetting is
inappropriate or
incomplete.
The antenna type is
inappropriate.
The antenna direction,
position and angle need
adjustment.
Check the antenna cable and
connection on the video TV and at
the wall.
Display the TV SET UP menu and
select MANUAL PROGRAM to
manually preset the channel again.
Check the antenna type (VHF/
UHF). Contact a Sony dealer for
advice.
Adjust the antenna direction,
position and angle. Contact a Sony
dealer for advice.
Dotted lines or stripes
There is local interference
from cars, neon signs, hair
dryers, power generators,
etc.
• Do not use a hair dryer or other
equipment near the video TV.
• Adjust the antenna direction,
position and angle for minimum
interference. Contact a Sony
dealer for advice.
Abnormal color patches
There is magnetic
disturbance from external
speakers or other
equipment.
Locate external speakers or other
equipment away from the video
TV. Press ?/1 on the video TV to
turn off the video TV for about five
minutes, then turn on again.
Clock and timer section
The clock has
stopped and “--:--” is
displayed.
The power has been
interrupted or the AC
power cord is disconnected.
Re-set the clock and timer settings.
(page 9)
53
Additional Information
Symptom Possible cause
Solutions
Playback section
Power is on, but the tape
does not run.
The safety device has been
activated.
Switch off, disconnect the AC
power cord, and leave the set for
about one minute.
Poor playback picture The color system setting is
inappropriate.
The tracking condition is
inappropriate.
The video heads are dirty.
The video heads may be
worn out.
The tape is worn out.
Display VIDEO SET UP and set
the color system (COL SYS) to the
setting corresponding to the color
system that the tape is recorded in.
(page 42)
Adjust the tracking manually.
(page 37)
Clean the video heads using the
Sony T-25CLD, T-25CLDR, or T-
25CLW video head cleaning
cassette (not supplied). If these
cleaning cassettes are not available
in your area, have the heads
cleaned at your nearest Sony
service facility (a standard service
fee will be charged). Do not use
any commercially available liquid
type cleaning cassettes other than
Sony’s, as it may damage the video
heads.
The video heads may have to be
replaced. Contact a Sony dealer for
advice.
Use a new tape.
The sound drops out.
The tape is defective.
Use a new tape.
Symptoms caused by contaminated video heads
• Normal picture • Rough picture •Unclear picture
• No picture (or
black & white
screen appears)
initial
contamination
terminal
t
continued