Dell 1710n - Laser Printer B/W Service Manual page 116

Controller card service check (continued)
FRU
LVPS/HVPS
Controller card
assembly
2-84
Service Manual
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
J4-1
J4-2
J4-3
J4-4
J4-8
J4-9
J4-13
If any of the voltages are incorrect, check or
replace the LVPS/HVPS. See
service check" on page
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.
Voltage
+5 V dc
+5 V dc
+5 V dc
+5 V dc
+24 V dc
+24 V dc
+5 V dc
"Dead machine
2-86.