Xerox WorkCentre 5790 Series Service Manual page 302

09-375 Ambient Temperature Sensor Failure RAP
09-375 The average ambient temperature is out of limits.
Initial Actions
WARNING
Ensure that the electricity to the machine is switched off while performing tasks that do
not need electricity. Refer to GP 14. Disconnect the power cord. Electricity can cause
death or injury. Moving parts can cause injury.
Switch off the machine, then switch on the machine,
Disconnect then re-connect P/J46 on the relative humidity sensor / ambient temperature sen-
sor and P/J7 on the IOT PWB.
Procedure
Enter dC330, code 09-375 is available to use.
Y N
Connect a service meter between
reading. Open the left hand door, gently blow on the temperature sensor PWB. The
meter reading has changed.
Y N
Go to Flag 1. Check for +5V at
Y N
Go to:
• 01E +5V Distribution RAP.
• 01B 0V Distribution RAP.
Go to Flag 1. Disconnect P/J46. Check for +5V at P/J46, pin 1. +5V is present.
Y N
Check the wiring between
wiring as necessary.
Install a new relative humidity sensor / ambient temperature sensor, (35 ppm)
9.22 Item 4, (40-90 ppm) PL 9.20 Item
If the fault persists, perform OF7
is installed, PL 1.10 Item 2.
The ambient temperature sensor is working correctly.
If the fault is intermittent, perform the steps that follow:
• Check the wiring, GP 7. Repair if necessary,
• Make sure that the P/Js are correctly and securely connected,
Enter dC330 code 09-375, ambient temperature sensor, Q09-375. Press start. Observe the
displayed state of Q09-375. Figure 1. Open the left hand door, gently blow on the temperature
sensor PWB. Observe again the displayed state of Q09-375. The
changed.
Y N
Go to Flag 1. Check for +5V at P/J7
A
Status Indicator RAPs
09-375
GP 14.
P/J7 and the machine frame and note the voltage
P/J7 pin 3 on the IOT PWB. +5V is present.
P/J7 on the IOT PWB and P/J46, GP 7. Repair the
4.
IOT PWB Diagnostics RAP before a new IOT PWB
REP 1.2.
GP 11.
displayed state
pin 3 on the IOT PWB. +5V is present.
A
Y N
Go to:
• 01E +5V Distribution RAP.
• 01B 0V Distribution RAP.
Go to Flag 1. Disconnect P/J46. Check for +5V at P/J46, pin 1. +5V is present.
Y N
Check the wiring between
as necessary.
Install a new relative humidity sensor / ambient temperature sensor, (35 ppm)
Item 4, (40-90 ppm) PL 9.20 Item
If the fault persists, perform
installed, PL 1.10 Item 2.
The ambient temperature sensor is working correctly.
If the fault is intermittent, perform the steps that follow:
• Check the wiring, GP 7. Repair if necessary,
• Make sure that the P/Js are correctly and securely connected,
PL
has
Figure 1 Component location
May 2013
2-270
P/J7 on the IOT PWB and P/J46, GP 7. Repair the wiring
4.
OF7 IOT PWB Diagnostics RAP before a new IOT PWB is
REP 1.2.
GP 11.
Relative humidity
sensor Q09-365 /
ambient temperature
sensor Q09-375
P/J46
Xerox® WorkCentre® 5790 Family
PL 9.22