Epson TM-U375 - POWER LED Does Not Light

4-3
1
1
POWER LED does not light
Yes
END
OK ?
Replace external power supply.
Replace fuse F1 (refer to Section
4.2.1,
Fuse replacement ).
Replace switch PCB unit.
Yes
END
OK ?
Replace main PCB.
END
No
No
Yes
Yes
No
No
No
Is power supply
cable connected
properly?
Connect power supply cable properly.
Yes
END
OK ?
No
Is POWER LED continuity
normal?
No
Yes
Does external power
supply have proper output
voltage rating? (approx. +24
V
in no-load condition)
Yes
END
OK ?
No
Yes
Has fuse F1 on
main PCB blown?
CONFIDENTIAL