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2.2 Fault flow chart
Fault symptom
- Noise in picture - TV only
Possible cause
- Poor antenna reception
- Incorrect tuning
- Fine tuning active
- Defect Main chassis
- Tuner adjustment incorrect
- IF adjust or Tuner takeover
Noise problem on
single TV channel
All TV channels have
noise in picture
Check channel tuning
& fine tuning
Picture OK?
Replace
Main chassis
(module 999)
Check antenna
connection
Re-establish
connection
Tuner/IF adjustment
In TV SERVICE MENU
Confirm correct values
for Tuner takeover &
IF adjust
Transfer correct values
No
Yes
Replace
Main chassis
(module 999)
ABO-CENTER
v/HENRIKSENS
ELEKTRONIK