Power Led Does Not Light - Epson TM-U375 Technical Manual

CONFIDENTIAL
1

POWER LED does not light

1
Is power supply
cable connected
properly?
Yes
Does external power
supply have proper output
voltage rating? (approx. +24
V
in no-load condition)
Yes
Has fuse F1 on
main PCB blown?
No
Is POWER LED continuity
normal?
Yes
Replace main PCB.
END
No
Connect power supply cable properly.
No
Replace external power supply.
Yes
Replace fuse F1 (refer to Section
4.2.1, Fuse replacement ).
No
No
OK ?
Yes
END
No
OK ?
Yes
END
No
OK ?
Yes
END
Replace switch PCB unit.
No
OK ?
Yes
END
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