Troubleshooting
6-8
Part 1073401_07
E 2021 Nordson Corporation
Identifying Electrical Components (contd)
Table 6-3 Main Board Components
(contd)
Item Number Type Description
Connection Points
XT1 Input High-voltage power connection to board
J1 Input/output Signal ribbon cable between main board and CPU
XP1 Output Control voltage to applicator solenoid 1
XP2 Output Control voltage to applicator solenoid 2
XP3 Input Switch closure from hand-held applicator 1
XP4 Input Switch closure from hand-held applicator 2
XP5 Output Control voltage to pump RTD
XP6 Output Control voltage to tank RTD
X1 Output High-voltage to pump heater
X2 Output High-voltage to tank heaters
X3 Output High-voltage to motor
X4 Input/output High-voltage and control voltage out to hose/applicator 1
X5 Input/output High-voltage and control voltage out to hose/applicator 2
X7 Input Switch closure from melter control switch
Test Points
TP7 Contact +5 VDC out of low-voltage power supply
TP2 Contact Circuit common of low-voltage power supply
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