Star Micronics NX-1500 - Power Supply Circuit Abnormal

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TROUBLESHOOTING
Check or replace
1) IC201
2) D201
Check or replace.
1) IC202
2) TR201
3) ZD201
YES
YES
YES
YES
YES
Replace
Transformer.
The no load voltages are below:
ACS1 About AC30V
ACS2 About AC9V
START
Fuse F1
is blown?
NO
ACS1 and
ACS2 are
supplied?
NO
Replace
Transformer.
Check operation.
END
Replace Fuse F1
Fuse is
blown again?
NO
Connect the
connector CN201.
Fuse F201
is blown?
NO
Fuse F202
is blown?
NO
4-2. Power Supply Circuit Abnormal
(1) Remove connectors CN201 of the main logic board.