Fault flow chart 2.3
Fault symptom
- Poor geometry
Possible cause
- Main chassis defect
- Geometry adjustment incorrect
- LCD defect
The TV must be
turned ON for
minimum 20 minutes
before geometry can
be adjusted...
Take a note of the
settings in GEMOETRY
ADJUST LCD
Insert default values
Picture OK?
Replace
Main chassis
(module 999)
Fault symptom
- No teletext
Possible cause
- Main chassis defect
No
Yes
Replace
Main chassis
(module 999)
Fault symptom
- No auto contrast
Possible cause
- Defect auto contrast
- Defect Main chassis
Check voltage on
PCB0 P33 pin 2 & 4
App. 7.5V with sensor
covered
7.2V with full light on
Replace
Main chassis
(module 999)
Replace
IR/Autocontrast
(PCB)
ABO-CENTER
v/HENRIKSENS
ELEKTRONIK
