Bang & Olufsen BeoVision 7 MK II, Руководство по обслуживанию

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Fault flow chart 2.3
Sound
Fault symptom
- No sound in external speakers
Possible cause
- Speaker setup
- Speaker defect
- Speaker connection defect
- DSM module (PCB32) defect
- Main chassis defect
Perform “Speaker
output check”
- - - - - - - -
Check sound from
all outputs
- - - - - - - -
Locate fault in BV7
or speaker
No sound in all
output(s) from the
DSM outputs & no
sound in both PL
outputs
Sound in all outputs
from the DSM outputs
&
no sound in PL output
Sound in PL output
&
No sound in one or all
output(s) from the
DSM outputs
Replace Main chassis
(module 999)
- - - - - - - -
PL circuit defect
Replace DSM module
(PCB32)
- - - - - - - -
DSM circuit defect
Confirm speaker and
speaker connection
- - - - - - - -
BV7 failure
Replace speaker or
speaker connection
Replace Main Chassis
(module 999)
- - - - - - - -
PL circuit defect
Action
- - - - - - - -
Confirm
- - - - - - - -
Checked
REAR FRONT
REAR FRONT
CINEMA
CENTRE
POWER LINK
CENTRE
Speaker level
Sequence Manual
Left front - - -
Right front - - -
Right rear - - -
Left rear - - -
No
Yes