MIMAKI CJV30 Series, Maintenance Manual

Page: 176 / 316

© 2009 MIMAKI ENGINEERING CO.,LTD. 5.2.4 P.1
1
2
3
4
5
6
7
8
R.1.0
Maintenance Manual > Test Items > Other Test > Checking Damage of the Ink Slider PCB
Model CJV30/TPC Issued 2009.06.30 Revised F/W ver. 1.00 Remark
1.0
Rev.
5.2.4 Checking Damage of the Ink Slider PCB
 Outline
Check whether the IC on the ink slider PCB has electrical trouble or not.
 Procedure
1. Remove the six FFCs at CN1 to CN6 on the ink slider PCB.
2. Measure a resistance between 3.3V pattern and GND pattern on
the ink slider PCB to determine the condition. Connect the neg-
ative terminal of the tester to the GND test pin (TPG1 to 4) and
measure the resistance by getting the positive terminal touch to
5-7 pin of CN3.
Measured value of each test pin should be more than 5K 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.
GND
CN3 5-7 pin
U1
If ERROR 200 or ERROR 50 occurs after the print
heads replaced, U1 (CPLD, E600074) of the ink slider
PCB may be damaged.