Bang & Olufsen BeoVision 10-40, Service Manual

Page: 16 / 29

2.10 Fault flow chart
No
Yes
Fault symptom:
No sound in headphones, Power
Link and internal speakers when
using HDMI input
Possible cause:
PCB14, Main
Replace PCB14,
Main
-----------------------
Possible cause:
Audio matrix fault
or Sill9011 fault
Connect a HDMI source with an audio signal to
the HDMI input and continue on with the
following:
1: Press MENU
2: Select CONNECTIONS
3: Select AV3
4: Remember the selected source button, e.g.
V.MEM
5: Set HDMI = ON
6: Set VGA = OFF
7: Press the selected source button e.g. V.MEM
Confirm audio output on AV2
R = pin 1
L = pin 3
GND = pin 4
OK?
Fault symptom:
No sound output in headphones,
Power Link and internal speakers
when using AV1
Possible causes:
PCB14, Main
PCB51, System Module
PCB52, Linking Module
Check sound output
on Power Link
OK?
Go to page 2.8.
No sound output on
Power Link
Check sound output
on internal speakers
OK?
Go to page 2.9.
No sound output on
internal speakers
Replace PCB14,
Main
-----------------------
Maybe audio matrix
fault
Replace PCB51,
System Module
Connect an audio source to AV1
(R/L) and continue on with the
following:
1: Press MENU
2: Select CONNECTIONS
3: Select AV1
4: Remember the selected source
button, e.g. DVD
5: Set HDMI = OFF
6: Set VGA = OFF
7: Press the selected source
button, e.g. DVD
Confirm audio output on AV2
R = pin 1
L = pin 3
GND = pin 4
OK?
Connect an audio source to AV3
(R/L) and continue on with the
following:
1: Press MENU
2: Select CONNECTIONS
3: Select AV3
4: Remember the selected source
button, e.g. DVD
5: Set HDMI = OFF
6: Set VGA = OFF
7: Press the selected source
button, e.g. DVD
Confirm audio output on AV2
R = pin 1
L = pin 3
GND = pin 4
OK?
Check sound output
on Power Link
OK?
Go to page 2.8.
No sound output on
Power Link
Check sound output
on internal speakers
OK?
Go to page 2.9.
No sound output on
internal speakers