Panasonic TC-21SV10M EN - Manual (Page 27)

Before Requesting Service)
When you suspect the TV is out of order, check the following points before requesting Service.
Refer to either the shop where the purchase was made or the nearest Authorised Service Centre if the mulfunction
cannot be corrected.
Symptoms Checks
No power supply. - Is the power plug disconnected ?
- Is the main power switched ON ?
The programme selected is
not displayed clearly. - is the aerial connected properly ?
- Is received signal weak ?
Spots appear on the screen. Is the reception being disrupted by car, train, high tension cable, neon light inteference?
The picture has double or
treble images. ~ Has the direction of the aerial been changed ? It may changed after a severe wind.
- Signal reflection from surrounding mountains or building may effect on the picture.
Interference pattern appears Such symptoms may occur when the transmitting aerial for a radio station
or a ham ooerator is near the TV.
The channel number does not
disappear from the screen. Is the RECALL button pressed ?
- Push it again.
Inferior tint, light colour. Have the Colour and Tint been adjusted ? (Check the adjustment values.)
The TV sometimes produces
a cracking sound. If the picture and sound are normal, it may probably be the sound from
the cabinet which expands and contracts according to change of room
temperature. This is not a malfunction.
The Remote Control does not
work. - Is the transmitter oriented toward the Remote Control sensor on the TV ?
- Do you operate the Remote Control within 7 m from the receiving
windows ?
- Are there any obstacles between the Remote Control and the RemoteControf sensor ?
- Are the batteries dead ?
- Are the batteries fitted properly ?
- Is the Remote Control sensor being exposed to sunlight or strong fiourescent light ?
The cassette tape is ejected
immediately after insertion Is DEW CONDENSATION displayed on the screen ?
- Wait for a while until the indication disappears.
Is PICTURE RECORDING mode on ?
- When a tape with erasure prevention tab removed has been inserted,
in PROGRAMME TIMER RECORDING mode, the tape is automatically ejected.
The TV does not operate
although the power switch is ON Various safety devices have been triggered.
- Switch off the main power supply and switch it on again, after a few
minutes.
PICTURE RECORDING mode
can not be switched on. - Has the record tab been removed from the tape ?
- Is the PROGRAMME TIMER RECORDING mode on ?
PROGRAMME TIMER
RECORDING mode can not
be switched on. - Is the present time set properly ?
- Has the record tab been removed from the tape ?
- Are the starting time and ending time set properly ?
- Has the TIMER RECORDING button been oushed ?
No colour in picture reproduction
on tape playback. Has tracking been adjusted ?
- Adjust the tracking.
Snowy picture on tape playback. Are the Video heads dirty ?
- Request professional Service.
Are the video heads worn out ? Replace them.
Is the tape old ?
Flickering Is the tape old ?
The digits of the counter do not
change, during tape playback. Is a non-recorded part of the tape being played back ?
- When a non-recorded part of the tape is played back, the screen
becomes blue and the tape counter does not advance.
The pictured sourced from AV
INPUT shakes or does not work.
Such symptoms may occur when the input is set to AV INPUT and no signal
is received at the video input terminals.
When a tape recorded by PAL
systems of 3 times the normal
speed is playback after fast
forwarding or rewinding, the
colour tends to fade out.
This is caused by safety devices triggered by erronous functioning.
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