Polaroid series, Service Manual

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8.
Troubleshooting
8.1 Symptom Codes
:
CODE SYMPTOM COUNTERMEASURES
NP1
No Picture and No Sound
in TV mode.
z
Make sure the Power cord and Antenna cable are
properly connected .
z
Make sure the batteries in remote control are not
flat.
z
Switch to TV source by pressing TV button.
z
Select the correct signal source: “ ANT ” or “ STD/
HRC/ IRC ” in OSD menu.
z
Run “ Auto Scan ” in OSD menu.
NP2
No Picture and No Sound
in video mode.
z
Check the connection between the optional video
equipment and the TV.
z
Press AV, SV, or CV button on the remote control to
select the corresponding video source.
NP3
TV is automatically turned
off.
z
Check if the “SLEEP” timer is activated .
z
Press POWER button to turn on the TV once again.
NP4
Screen appears “ totally
snowy ” in TV mode. After
10 min., it turns off
automatically.
z
Check if Aerial cable is correctly connected.
z
Press POWER button to turn on the TV again.
z
Press CH Up/Down buttons to change channels.
No pictu
re
an
d and
no S
o
u
nd
NP5
Screen appears “ No
Signal ” in video mode.
After 10 min., it turns off
automatically.
z
Check if Video Cable is correctly connected and
Video Device is normal.
z
Press POWER button to turn on the TV again.
z
Press AV, SV, or CV button on the remote control to
select the corresponding video source.
PP1
Double Images / Ghosts If the TV suffers interference from signals reflecting from
mountains or buildings , double-pictures or Ghosts will
occur.
z
Adjust the Antenna’s location and direction
z
Replace it with one with better directionality.
z
Turn off or disconnect the booster if it is in use , as
the booster may be inappropriate.
PP2
Snowy picture and noisy
Sound If snow totally blocks out the picture , there may be a
problem with the Antenna or Antenna Cable .
z
Have the TV and Antenna been connected
properly ? Has the Antenna cable been damaged ?
z
Is the Antenna pointing in the right direction ?
z
Is the Antenna itself faulty ?
z
Try using a booster , as signal transmission may be
low.
PP3
Distorted picture and
noisy sound
z
Turn off or disconnected the booster if it is in use ,
as broadcast signals may be too strong.
Poor
Pictu
re
PP4
Dotted Lines / Stripes
in the picture. If the TV or Antenna suffers interference from other
equipment , stripes or noise may appear in the picture.
z
Keep the TV away from noise sources such as
personal computer , amplifier , cars, motorcycles or
hair-dryers.
z
If the aerial suffers interference from a radio tower
or high-voltage wire , contact the local dealer.
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