BDS 2 (serv.man8) - Harman Kardon Audio Service Manual (repair manual). Page 15

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5-5                             Trouble shooting Chart 
5.1/2.1 channel no audio output 
Reconnect well
check the system weather is 
ear mode or not, pull out the 
4pin cable XS601 from FB to 
AM board XP806 
Replace the FB board
Yes 
No 
Go
Check the 10pin/4pin cable is 
connect well from AM to JC 
board 
5.1/2.1 channel no audio 
output
Yes  
Replace the AM board 
No
Check +32V at XP702 on 
AM board is OK
Yes 
Refer to Power supply board 
Check XP701 is short 
to GND 
No
Replace the AM board 
Yes  
No
Harman Kardon
BDS 2 / BDS 5 Service Manual
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