BDS 580S (serv.man2) - Harman Kardon Audio Service Manual (repair manual). Page 23

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5-11                             Trouble shooting Chart 
Fan can not rotate 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
HDMI input does not output 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
FAN can not rotate 
Check the voltage 
of FAN   
Go 
Check the FAN 
power supply circuit   
No  
OK 
Replace a new fan 
HDMI input does 
not output 
Go 
Check the DVD mode is 
OK,HDMI output is ok 
 
No 
Replace the Main board
 
Yes 
Replace U27    Sil9573
 
check connector is HDMI IN 1，
AND SET HDMI IN 1 INPUT,
 
Correct connection   
No 
OK 
OK 
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