Xerox C2424 Service Manual - Page 132
V Power Supply Fault Troubleshooting Procedure, Continued, Paper Tray Sense J610Ink load Signal J910
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50V Power Supply Fault Troubleshooting Procedure (Continued) Step Questions and Actions Yes No 4 1. If the 50V Power Supply LED (viewed thru the cooling grill below the power cord receptacle) illuminates, the short is on one of the external devices you unplugged earlier. In this case, systematically turn off the printer, plug a wiring harness back in, and turn the printer on until the 50V supply fails. 2. Replace the defective part. Retest the printer. 5 1. To isolate the problem to the I/O board or its Replace the I/O Go to Step 6. related cabling, unplug the I/O board board. connectors. Umbilical Right J1 ■ Waste Tray Sense J110 ■ Stripper Solenoid J250 ■ Paper Tray Sense J610Ink load Signal J910 ■ DMU Sense J860 ■ Drum Thermistor J870 ■ Exit Module J680 ■ Heater Relay Control J950 2. Test the resistance of the I/O board. 3. Is the resistance still less than 1K ohm? 6 1. Plug in the I/O board connectors one at a time and retest the resistance. 2. Replace the component that creates a short at J270. 3-40 WorkCentre C2424 Service Manual
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