Akai LM-H30CJSA, Service Manual

Page: 21 / 64

8. Troubleshooting
8.1 Symptom Codes
:
( for Call Center use )
CODE SYMPTOM COUNTERMEASURES
NP1
No Picture and No Sound
in TV mode.
•
Make sure the Power cord and Aerial Cable are
properly connected .
•
Make sure the batteries in remote control are not flat.
•
Press the POWER button to switch the TV on.
•
Switch to TV source by pressing “ TV ” button.
•
Run “ Automatic Search ” by operating the remote
control.
NP2
No Picture and No Sound
in video mode.
•
Check the connection between the optional video
equipment and the TV.
•
Press SCART , Video/S-V or COMPONENT button
on the remote control to select the right video
equipment.
N
o
p
ictur
e a
n
d
a
n
d
no
So
un
d
NP3
TV is automatically turned
off.
•
Check if the “SLEEP” timer is activated .
•
Press the POWER button to turn on the TV once
again.
PP1
Double Images / Ghosts If the TV suffers interference from signals reflecting from
mountains or buildings , double-pictures or Ghosts will
occur.
•
Adjust the aerial’s location and direction
•
Replace it with one with better directionality.
•
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 Aerial or Aerial Cable .
•
Have the TV and aerial been connected properly ?
Has the aerial cable been damaged ?
•
Is the aerial pointing in the right direction ?
•
Is the aerial itself faulty ?
•
Try using a booster , as signal transmission may be
low.
PP3 Distorted picture and
noisy sound
•
Turn off or disconnected the booster if it is in use , as
broadcast signals may be too strong.
P
oor
Pi
ct
ur
e
PP4
Dotted Lines / Stripes
in the picture.
If the TV or aerial suffers interference from other
equipment , stripes or noise may appear in the picture.
•
Keep the TV away from noise sources such as
personal computer , amplifier , cars, motorcycles or
hair-dryers.
•
If the aerial suffers interference from a radio tower or
high-voltage wire , contact the local dealer.
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