SB 35 Sabre (serv.man5) - Harman Kardon Audio Service Manual (repair manual). Page 12

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5-8                             Trouble shooting Chart 
 
HDMI in does not work 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
HDMI in does not 
work 
Go 
No 
Check Q1 STB_5Vand 
Repeater5V 
whether normal or not
 
No 
Yes 
Check the 24P connector 
Check 1.3V of U15 voltage on HDMI Board 
whether normal or not 
Check 3.3V of U18 voltage on HDMI Board 
whether normal or not 
Yes 
Check the    clock and data of U27 and 
on the HDMI    board
 
 
Check the R3 and R905~R907 on main 
board 
whether normal 
or not 
No 
Replace U27
 
Yes 
No 
Replace 
R3 and R905~R907 
Replace Q1 in 
HDMI Board 
No 
Yes 
Replace U15 in 
HDMI Board 
Harman Kardon
SB35 SABRE Service Manual
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