Fault fl ow chart, English 2.9
No
Yes
Sound
Check aerial connection
No sound in
internal
loudspeakers
Are both left/right
without sound?
Find channel in
speakertable
and
measure.
Measurement OK?
Replace speakerbox
Replace PCB10 /
Sound/DVD
chassis (BC1)
OK?
Replace main
chassis
Disconnect 10P32
OK?
Replace main
chassis
OK?
The TV should be
taken to a
workshop for repair
Replace PCB59
Replace PCB10 /
Sound/DVD
chassis (BC1)
OK?
Replace main
chassis
OK?
Replace speakerbox
No bass
or
no treble
Are both left/right
without bass or
without treble?
Find speakerunit in
speakertable
and
measure.
Speakerunit OK?
Replace
speakerunit or
speakerbox
Replace PCB10 /
Sound/DVD
chassis (BC1)
OK?
Replace speakerbox
Replace PCB10 /
Sound/DVD
chassis (BC1)
OK?
Replace speakerbox
Reconnect 10P32.
Disconnect 10P30.
Measure approx.
+ 21V between
4P21p1 and
4P21p3 and
approx. -21V
between
4P21p2 and
4P21p4
OK?
ABO-CENTER
v/HENRIKSENS
ELEKTRONIK