5.3.14. Power board troubleshooting(Non output )
Non output, IR indicator light slake
Y
Check if 12V
、
19V(24V/32V/50V)
output normal
N
Check if FB0 Open
Y
Check the power
components
damage or not
Y
Change damaged
components
N
N
Check EMI open or L N short
N
Check if EB1 voltage
about
√
2Vac
Y
Y
Change short
components
Go to
check
Main
board
func on
Check the rec
fi
er
Check if UB1 PIN5
voltage is about 15V
Y
Check if output short
N
Check if RB12,
RB13,RB14 open
N
Change UB1
Y
Change damage
resistors
Summary of Contents for LHD32D33EU
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