MIMAKI CJV30 Series, Maintenance Manual

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© 2009 MIMAKI ENGINEERING CO.,LTD. 5.2.3 P.1
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Maintenance Manual > Test Items > Other Test > Checking Damage of the Main PCB ASSY
Model CJV30/TPC Issued 2009.06.30 Revised F/W ver. 1.00 Remark
1.0
Rev.
5.2.3 Checking Damage of the Main PCB ASSY
 Outline
Check whether the COM circuit on the main PCB ASSY has trouble or not.
 Procedure
1. Release the locks on both sides of the connector for HDC_FFC
ASSY connected to CN1 to CN4 on the main PCB ASSY. And
then pull out the HDC_FFC ASSY.
2. Check the COM circuit referring to [5.2.1].
3. Measure the resistance on both ends of F13 (fuse) to check the
blown fuse.
Measured value of the fuse should be less than 5 ohms.
After turning off the sub and main power switches in order, unplug the power code.
Check if no electric charge is remaining in the PCB.
Refer to the "4.5.2 Electric charge checking when replace the Electrical Parts"
It is very dangerous if sleep mode functions mistakenly during the operation.
Moreover, the PCB may be damaged in case electric charge still remains inside.
Also there is a possibility of electric shock because of high power voltage applied the high-pressure part
of the power supply PCB assy. Take care to avoid contact with it.
CN3
CN2
CN1
CN4
F13
If ERROR 205 [47V HEAD VOLTAGE] occurs, F13
(fuse) may be blown.