MIMAKI TS34-1800A - Page 157

© 2011 MIMAKI ENGINEERING CO.,LTD. 5.2.6 P.1
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MAINTENANCE MANUAL > Test Items > Other Test > Checking Conduction of HDC FFC COM Line
Model TS34-1800A Issued 2011.10.17 Revised 2013.11.13 F/W ver 1.20 Remark
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Rev.
5.2.6 Checking Conduction of HDC FFC COM Line
 Outline
Check whether the HDC FFC COM line has disconnection or poor contact or not.
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 "4.4.2 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.
M Y K C
C K Y M
M Lc Y M
C K C Lm
M Y Lc W
C K Lm W
Signal Test pin on the
ink slider PCB
Test pin on the
main PCB
Normal conduction Nozzle line
COM-11 TP9 TP1 Less than 3 ohms A*
COM-12 TP10 TP2 Less than 3 ohms B*
COM-13 TP11 TP3 Less than 3 ohms C*
COM-14 TP12 TP4 Less than 3 ohms D*
COM-15 TP13 TP5 Less than 3 ohms E*
COM-16 TP14 TP6 Less than 3 ohms F*
COM-17 TP15 TP7 Less than 3 ohms G*
COM-18 TP16 TP8 Less than 3 ohms H*
 4-color ink set  6-color ink set  6-color + white ink set
A line C line E line G line
B line D line F line H line
A line C line E line G line
B line D line F line H line
A line C line E line G line
B line D line F line H line
* See below about nozzle lines.
Signal Test pin on the
ink slider PCB
Test pin on the
HDC PCB
Normal conduction Nozzle line
COM-21 TP1 TP1 Less than 3 ohms A*
COM-22 TP2 TP2 Less than 3 ohms B*
COM-23 TP3 TP3 Less than 3 ohms C*
COM-24 TP4 TP4 Less than 3 ohms D*
COM-25 TP5 TP5 Less than 3 ohms E*
COM-26 TP6 TP6 Less than 3 ohms F*
COM-27 TP7 TP7 Less than 3 ohms G*
COM-28 TP8 TP8 Less than 3 ohms H*
* See below about nozzle lines.