—24—
• Check the Fuse.
• Check the wiring diagram.
Is the Trans input power
AC 115V?
Is the Trans output power
about AC 14V?
Is shorted the Trans. output?
Is output Voltage of IC01D
DC 12V?
Is output Voltage of IC02D
DC 5V?
Is the voltage No.40 of Micom
DC 5V?
Exchange AC PCB Ass'y.
Is the
connection between
AC and DC
all right?
Is the reset circuit all right?
(The No.14 of
Micom is 5V.)
• Check the Fuse.
• Check the wiring diagram.
• Check the AC
PCB pattern.
• Exchange the Trans.
• Exchange D02D~D05D.
• Exchange IC01D.
• Exchange IC02D.
• Exchange IC01A, C01A.
• Connect connector
exactly.
• Check the PCB
pattern.
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
NO
YES
■
ELECTRICAL PARTS TROUBLESHOOTING GUIDE: LW8000ER
Possible Trouble 1
The unit does not operate.