User Manual

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!
WARNING
To avoid risk of electrical shock that can cause death or severe personal injury,
disconnect unit from power before servicing unless tests require power.
9-1. Faulty Start (F/M/R lights Off , F-PCB Power Off)
9. How to Service
Start
Power input to
Main PCB is ok?
Main PCB Fuse is
disconnected?
Voltage
DC5V on Main PCB is
OK?
Wire connection
of Front PCB is OK?
Check power connection
from machine compartment
to CN1 of Main PCB.
Change Front PCB AS.
Change Main PCB
Change the fuse
(AC250V 4A)
on the Main PCB
N
Y
N
Y
Y
N
Y
N
Checkup and connect
Front PCB wires.
■ How to check DC voltage on main PCB :
Never touch the bottom
face of PCB board directly
by hand to prevent electric
shock or injury.