Xerox C2424 Service Manual - Page 131
V Power Supply Fault Troubleshooting Procedure, some other 50 V device. - specs
UPC - 095205676532
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37,016.43: PEST 50 V power supply test. The 50 V power supply is loaded with the head maintenance clutch and then tested. The expected power from the supply is not being drawn. This error may be caused by a power supply that is faulty or shorted by some other 50 V device. 50V Power Supply Fault Troubleshooting Procedure Step Questions and Actions Yes 1 Checking for a short in electronics module. Go to Step 2. NOTE: Damage to circuits within the electronics module may occur if the power supply capacitors are not allowed to fully discharge. 1. Turn off the printer and wait 30 seconds for the power supply capacitors to discharge. 2. It is possible that the power supply is not shorted but instead is out of spec, which leads to an error condition. 3. Measure the 50V power supply output. The test point is located on the power control board below the main board RAM DIMMs. 4. Is the power supply within specification? 2 1. Unplug the following electronics module Go to Step 3. connectors. This step disconnects all other external circuits so the electronics module can be tested alone: ■ Power Control to I/O board (J800 - gray ribbon cable on right side) ■ Power Control right (J400 - 16 wire, multicolor) ■ Printhead data interface (J130 - gray ribbon cable on top side) ■ Wave amp signal (J790) short gray ribbon cable located on left side) ■ Printhead power connector ■ Power Control left (J390 - 34 wire, multicolor) ■ Y-Axis motor (J280) 2.Turn on power to the printer. 3. Do the PE and PS indicators flash momentarily? 3 1. Turn off the printer and wait 30 seconds for Go to Step 4. power supply capacitors to discharge. 2. Plug in the power control to I/O board connector (J800). 3. Turn on power to the printer. 4. Do the PE and PS indicators flash momentarily? No Go to Step 2. Replace the electronics module. Go to Step 5. Error Messages and Codes 3-39