Bang & Olufsen beosound 1 2581 Service Manual page 8

2.6 Fault fl ow chart, English
Radio
Noise in sound
Other
radio-faults
CD
No load of CD
No play of CD
Measure
Replace PCB1
1P35pin5 to pin6.
OK?
8V DC? ➢ 2
Replace PCB4 Replace PCB1
OK? OK?
Bring BS1 to
Replace PCB1
workshop for
OK?
repair
Measure
Measure 1P5pin12
1P700pin1 to
to pin10. 16V DC?
pin2. 5V DC when
➢ 2
load? ➢ 3
Replace the CD-
Replace PCB1
loader
OK?
OK?
Measure 1P2pin2
and 1P2pin4 to
Replace PCB1
pin1. 9V DC and
OK?
5V DC when CD?
➢ 1
Replace PCB90
OK?
No
Yes
Replace PCB4
OK?
Replace Bring BS1 to
Antenna-loader workshop for
OK? repair
Replace PCB2
OK?
Bring BS1 to
workshop for
repair
Replace PCB90
OK?
Bring BS1 to
Replace PCB1
workshop for
OK?
repair