Service manual

CBM-270 Service Manual
13 CITIZEN
4
44
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If the printer has a trouble, confirm its phenomenon, determine a defective part according to 4.2
Troubleshooting Guide, and then, repair it in the specified manner.
·
Phenomenon Find a corresponding trouble phenomenon in this column. If there
multiple corresponding phenomena, confirm taking all of them into
account. This allows you to determine a hidden defective part.
·
Cause Possible causes are listed as many as possible in this column. Project a
trouble cause and determine it by the check method described in the
next column.
·
Check Method Check methods are listed in this column to determine the relevant
trouble cause.
·
Repair Method Repair the defective part in the manner described in this column.
Efficient troubleshooting is enabled without making a erroneous judgment by repairing in the
above-mentioned procedure.
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.2
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The following table lists the check methods and repair methods based on possible phenomena
and causes.
·
··
·
AC
AC AC
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AA
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Phenomenon Cause Check Method Repair Method
The AC cord is not
connected.
---
Connect the AC cord to
the specified plug
socket, etc.
The voltage is
abnormal.(It is slightly
higher than the rating
in the no-load state)
Use a voltmeter to
measure a supply
voltage.
Replace the AC adapter.
The power cannot be
turned on (POWER
lamp not illuminated)
The AC adapter was
connected to(used for)
another device in the
past. 12. Replace
the AC adapter.
---
Replace the AC adapter.