Rep 3.1 Iot Pwb - Xerox WorkCentre 5790 Series Service Manual

REP 3.1 IOT PWB

Parts List on PL 1.10
Removal
Switch off the electricity to the machine,
customer supply while performing tasks that do not need electricity. Electricity can
cause death or injury. Moving parts can cause injury.
Figure 1 ESD Symbol
Ensure that E.S.D. procedures are observed during the removal and installation of the IOT
PWB.
1. Remove the rear cover, PL 8.10 Item
2. Enter dC131. Record the developer age value 09-271. Record the TC sensor control volt-
age 09-069.
NOTE: If the developer age is unavailable then record HFSI-developer copies.
3. Figure 2, disconnect the PJs from the IOT PWB.
NOTE: 35ppm IOT PWBs do not have PJ33 and PJ64.
4. Remove the IOT PWB (8 screws).
Replacement
• If a new IOT PWB has been installed, perform steps 1 and 2.
• Install the new IOT PWB. Ensure the IOT PWB ground contact screw is tight on the IOT
PWB, Figure 3. Ensure the contact faces are clean. Ensure the screw is bright plated and
not black. Perform 1 below.
Perform the following:
1. Reconnect the power cord and switch on the machine,
If necessary, reload the software set,
downgrade the software when the machine is switched on.
NOTE: After the software reload has been completed, the machine resets and gives a
message 'Restoring Configuration Settings'. Do not switch off the machine or intervene
during this NVM transformation process.
2. Check the machine serial number and the machine configuration,
diagnostics, on the 'Service Info' screen, select the serial number box and enter the
machine serial number as it appears on the front frame of the machine.
3. If necessary, perform a NVM restore,
Xerox® WorkCentre® 5790 Family
WARNING
GP 14. Disconnect the power cord from the
CAUTION
1.
GP 14.
GP 4. The machine will automatically upgrade or
GP 15. If necessary, in
GP 5.
4. Enter dC131. Write the developer age value 09-271. Write the TC sensor control voltage
09-069.
IOT PWB ground contact screw
Figure 3 IOT PWB ground contact screw
May 2013
4-27
Figure 2 IOT PWB
Repairs/Adjustments
REP 3.1