This explains how to check DC power supply,
Additional equipment required
TP Test Module
Digital Multimeter
STEPS
1Attach the connector from the TP Test Module to the test port on the MAIN PCB. Note correct positioning of connector. Nibs on the connector are placed down on the PCB in the forward position.
2Attach the ground probe of the Digital Multimeter to the TP Test Module ground pin (GND PIN).
3Attach positive probe of the Multimeter to the +SIG PIN on the TP Test Module terminal.
4Turn printer power on and rotate the dial to a dial POS on the TP Test Module. Record the values from the Multimeter.
5Confirm voltages are correct. If not, then replace parts or adjustment sensor level. Refer to Check and Adjustment chart.
6After performing test, put the VR cover back to the printer.
Cable to TP Test Module
Cable to PCB
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| Ground | PIN SIG PIN | Dial |
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| TP Test Module |
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EZ Manual: XL4xxe | 2 |
Electric Checks and Adjustments
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