Dell 1710n Service Manual - Page 116

Controller card service check (continued) FRU LVPS/HVPS Controller card assembly Action Verify main power to controller card With the printer off, unplug the LPS/HVPS cable at J4 on the controller card. Verify grounds on pins 7, 12, and 14 for both the cable and the controller card. If any of these grounds are incorrect, check the cable for continuity. Replace the cable or the respective card as necessary. Turn the printer on with the cable still unplugged, and verify the following on the cable (controller card will not be powered): Pins Voltage J4-1 +5 V dc J4-2 +5 V dc J4-3 +5 V dc J4-4 +5 V dc J4-8 +24 V dc J4-9 +24 V dc J4-13 +5 V dc If any of the voltages are incorrect, check or replace the LVPS/HVPS. See "Dead machine service check" on page 2-86. Controller card voltage outputs Turn the printer off, and plug the LVPS/HVPS cable into J4 of the controller card. See the table, "Controller card connector pin values" on page 5-4, which identifies the voltages and grounds for a good controller card. Note: Turn the printer off before pugging or unplugging any connectors. 2-84 Service Manual