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Ш ELECTRICAL PARTS TROUBLESHOOTING GUIDE: M1003L, M1203L
Possible Trouble 1
The unit does not operate.
Is the Trans input power
AC 115V?
Is the Trans output power
about AC 14V?
Is output Voltage of ICO1D
NO
DC 12V?
Is output Voltage of ICO2D
DC 5V?
ls the reset circuit all right?
(The No.36 of
Micom is 5V.
connection between
NO
Main and Display
YES
NO
Is the voltage No.24 of Micom
YES
Exchange Main PCB Ass y.
Is shorted the Trans. output?
* Check the Fuse.
* Check the wiring diagram.
* Check the Main
PCB pattern.
‚
= ° Exchange the Trans.
* Exchange 0020-0050.
|. Exchange ICO1D.
* Exchange ICO2D.
• Exchange ІСОТА, CO1A.
AA
4
>
<>
5
REGISTERED
О
/ [5519s
pattern.
M
NA
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О
2.
«S
Grint.anx Š
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