GRAPHTEC CUTTING PRO FC3100-60, Руководство по обслуживанию

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FC3100-60 Service Manual
P/N53802-031T Rev. A
5 - 2
5.2 Power Unit (PS089A)
5.2.1 Checking Operation
(1) Use a multi-mater to check the voltage levels of TP1 to TP5.
Test pin Voltage
TP1 + 5 V
TP2 + 12 V
TP3 + 32 V
TP4 - 12 V
TP5 + 24 V
TP10 GND
(2) If voltage levels cannot be measured at TP1 to TP5, use the following method to check operation.
•
Disconnect the main board's J101 connector.
•
Ned, use the multi-meter to measure the voltage levels of the J101 connector pins.
Pin Number Voltage
1 pin + 5 V
2 pin + 12 V
3 pin + 32 V
4 pin GND
5 pin GND
6 pin + 5 V
7 pin - 12 V
8 pin + 32 V
9 pin + 32 V
10 pin GND
(3) If the measured voltage levels do not conform to the above tables, the power unit is probably
defective.
5.2.2 The Protective Circuit
The protective circuit is activated in either of the following cases.
+ 32 V power + 5 V power + 12V power - 12V power
Protection against
excess current 8 A or more 6 A or more 6 A or more 3 A or more
Protection against
excess current 115% of the rated
voltage (32V)
When the protective circuit is activated, all of the plotter's supply voltages are switched off.
If the protective circuit is activated, turn off the plotter. After the plotter is left as is for three to five
minutes, it will automatically recover.