Fault flow chart 2.5
Repair/replace
connection
Set role switch
Fault symptom:
No function and no LED indication
Possible causes:
Defective PCB02.1, Input Panel
Defective PCB04, Power Supply
Defective PCB30, Digital Sound Engine
Defective PCB35.1/2, Amplifier
Incorrect role switch setting
Read out Error Log
and follow
instructions
thoroughly
OK?
Is loging field in
ServiceTool
indicating:
“... failed to read
error codes ...” ?
Confirm mains
voltage
OK?
Replace cable or
re-establish con-
nection
No
Is the speaker in a
wireless setup
Confirm that the
wired connection
between speaker
and the source
product is OK
OK?
Confirm that the
wireless connec-
tion between the
speaker and the
transmitter is OK
OK?
Repair/setup the
wireless connection
Yes
Fault flow chart
Survey of plugs and pins - see page 2.11
Confirm that the
role switch setting
is correct
OK?
Confirm that the
role switch setting
is correct
OK?
Set role switch
Confirm
5V_SB = 5V at
PCB04, P14 pin 1
OK?
Disconnect cable
W2 from PCB04
P14
Confirm 5V_SB =
5V at PCB04, P14
pin 1
OK?
Confirm mains
voltages at PCB04,
P13 pin 1-2
OK?
Replace PCB04,
Power Supply
Fault in cable
connection
Repair/replace
connection
Replace PCB30,
Digital Sound
Engine
*
Go to
#1
Go to
#1
*
Use ServiceTool to
autocalibrate the
new module
Содержание BeoLab 20
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Страница 28: ...4 4 Replacement of modules BeoLab 20 in service position 1 Pull to remove fabric frame ...
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Страница 67: ......
Страница 68: ...Bang Olufsen DK 7600 Struer Denmark 3538228 14 04 353822814040000 ...