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LT1201 User Manual (020-1080-00 Rev. A) 17
J9,12V
INPUT
CHK FUSE F1
CHK
U7 input +12V
U7 output +5V
CHK
U4 Pin 21 +1.8V
U4 Pin 126 +1.8V
CHK
U9 input +5V
U9 output +3.3V
REPLACE U4
POWER FLOW
Return
REPLACE U7
normal
abnormal
abnormal
REPLACE U9
normal
abnormal
normal