Bang & Olufsen DVD 2, Service Manual

Page: 25 / 70

Fault flow chart 3.3
Audio Fault symptom:
No audio
Low audio quality
Audio drop out
Possible causes:
Defective PCB
Poor source/media
Cable/connection fault
Software fault
Check audio signal
path from tuner to
EXT. Confirm sound
out at PCB0, Scart,
pin and 3
OK?
No
Yes
Replace PCB0,
Analog
Sound OK?
Replace PCB02,
Digital
Refer to ‘Adjustments’
when replacing
Replace PCB02,
Digital
Refer to ‘Adjustments’
when replacing
OK?
Playback CD from
DVD drive
Sound OK?
Is Tuner sound OK?
Replace PCB0,
Analog
Confirm that there is
audio in both L/R
channel
OK?
Replace PCB02,
Digital
Refer to ‘Adjustments’
when replacing
Replace PCB0,
Analog
Confirm that audio
quality is OK without
dropouts
OK?
Update to latest
version. Software can
be downloaded at
Bang & Olufsen Retail
system under the
BeoWise section
Verify that the
software version is the
latest available.
Refer to ‘Adjustments’
for readout
OK?
See next page
Replace PCB0,
Analog
Replace PCB02,
Digital
Refer to ‘Adjustments’
when replacing