SB 35 Sabre (serv.man5) - Harman Kardon Audio Service Manual (repair manual). Page 6

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5-2                             Trouble shooting Chart 
keys do not work 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
keys do not work
 
Go 
No 
Check 3.3v of  XP206 PIN5 in Lcd 
board .
 
Yes 
Replace the U3 in the main borad.
 
No 
Yes 
Replace KEY board.
 
Check XP206 24PIN FFC in main board . 
whether has  it  breakage or plug in well? 
Fix or replace the 24PIN FFC
 
 
Harman Kardon
SB35 SABRE Service Manual
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