May 2013
2-654
Xerox® WorkCentre® 5790 Family
OF7
Status Indicator RAPs
OF7 IOT PWB Diagnostics RAP
Purpose
To assist in identifying any suspected problems with the IOT PWB. If directed here from
another procedure always return to that procedure.
Perform the IOT PWB corruption check before a new IOT PWB is installed. If the fault still
occurs after completing this check then install a new IOT PWB.
Procedure
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.
Perform the following checks:
•
IOT NVM Corruption Check
.
•
IOT PWB Voltage Check
.
•
IOT PWB Communications Check
.
Ensure the machine is in normal mode (not standby mode).
IOT NVM Corruption Check
Corruption of the IOT NVM can cause paper jams, fuser temperature or xerographic control
faults. Perform these steps before a new IOT PWB is installed.
Perform the steps that follow:
1.
Enter
dC131
location 09-271 Developer Age. Note the developer age value. Also check
when the developer was last changed, to ensure that the age value is correct.
2.
Go to
dC132
NVM initialization - Copier
3.
Select Machine Variable NVM.
4.
Select Initialize.
5.
Switch off the machine, then switch on the machine,
GP 14
. Check if the fault still occurs.
•
If the fault does not occur, then go to step 6.
•
If the fault still occurs, install a new IOT PWB,
PL 1.10 Item 2
.
6.
Perform
dC604
Registration Setup Procedure.
7.
Enter
dC131
location 09-069 TCSensorCtrlVoltage. Record the value on the NVM sheet
stored in the wallet on the rear cover.
8.
Enter
dC131
location 09-271 Developer Age. Check that the value for the developer age
is correct, reset the value if required.
9.
Perform
SCP 6
Final Actions
IOT PWB Voltage Check
1.
On the IOT PWB check that the voltage-present LEDs that follow are on,
Figure 1
:
•
CR12
- Indicates the presence of 3.3V.
•
CR13
- Indicates the presence of 5V.
•
CR15
- Indicates the presence of 12V.
•
CR16
- Indicates the presence of 24V.
•
CR36
- Indicates the presence of 3.3V standby supply voltage.
2.
If
CR16
is not on, but 24V is present at
P/J27
pin 1, perform the
01G
+24V Distribution
RAP. If +24V is not present at
P/J27
, pin 1, check the voltage at
P/J26
pin 9. This is the
Low Power Mode Enable signal. If this signal is high, install a new LVPS and base mod-
ule,
PL 1.10 Item 3
.
3.
If no LEDs are on, or only the
CR36
3.3Vsb is on, go to
01H
Short Circuits and Overloads
RAP.
IOT PWB Communications Check
1.
Switch off the machine
GP 14
. Switch on the machine,
GP 14
. Observe the following con-
ditions,
Figure 1
:
•
CR14
is off.
•
CR27
is flashing at about 2 Hz.
•
CR28
and
CR29
are flashing alternately at about 1 Hz.
2.
If any of the above conditions do not apply, perform the steps that follow:
•
Switch off the machine,
GP 14
.
•
Use the jumpers to short J17 pins 1 and 2, J18 pins 1 and 2, J19 pins 1 and 2,
Figure
1
.
•
Switch on the machine,
GP 14
.
•
After the machine has power up, switch off the machine,
GP 14
.
•
Lift the jumpers from J17, J18 and J19. Park the jumpers on one pin only.
•
Switch on the machine,
GP 14
.
3.
If any of the above conditions still fail, then install a new IOT PWB,
PL 1.10 Item 2
.
Figure 1 IOT PWB LED and switch locations
Summary of Contents for WorkCentre 5790 Series
Page 1: ...Xerox WorkCentre 5790 Family Service Manual 708P90298 May 2013 ...
Page 4: ...May 2013 ii Xerox WorkCentre 5790 Family Introduction ...
Page 20: ...May 2013 xviii Xerox WorkCentre 5790 Family Translation of Warnings Introduction ...
Page 22: ...May 2013 1 2 Xerox WorkCentre 5790 Family Service Call Procedures ...
Page 32: ...May 2013 1 12 Xerox WorkCentre 5790 Family SCP 7 Service Call Procedures ...
Page 53: ...May 2013 2 21 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 1 3 3V Return ...
Page 54: ...May 2013 2 22 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 2 3 3V Return ...
Page 56: ...May 2013 2 24 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 3 5V Return ...
Page 57: ...May 2013 2 25 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 4 5V Return ...
Page 59: ...May 2013 2 27 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 5 12V Return ...
Page 61: ...May 2013 2 29 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 6 24V Return ...
Page 62: ...May 2013 2 30 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 7 24V Return ...
Page 63: ...May 2013 2 31 Xerox WorkCentre 5790 Family 01B Status Indicator RAPs Figure 8 24V Return ...
Page 95: ...May 2013 2 63 Xerox WorkCentre 5790 Family 01K Status Indicator RAPs Figure 2 Circuit diagram ...
Page 96: ...May 2013 2 64 Xerox WorkCentre 5790 Family 01K Status Indicator RAPs ...
Page 178: ...May 2013 2 146 Xerox WorkCentre 5790 Family 06 350 Status Indicator RAPs ...
Page 592: ...May 2013 2 560 Xerox WorkCentre 5790 Family 16B 16C Status Indicator RAPs ...
Page 596: ...May 2013 2 564 Xerox WorkCentre 5790 Family 19 409 Status Indicator RAPs ...
Page 698: ...May 2013 3 2 Xerox WorkCentre 5790 Family Image Quality ...
Page 736: ...May 2013 3 40 Xerox WorkCentre 5790 Family IQS 8 Image Quality ...
Page 742: ...May 2013 4 6 Xerox WorkCentre 5790 Family Repairs Adjustments ...
Page 772: ...May 2013 4 34 Xerox WorkCentre 5790 Family REP 3 4 Repairs Adjustments ...
Page 938: ...May 2013 4 200 Xerox WorkCentre 5790 Family REP 9 10 Repairs Adjustments ...
Page 994: ...May 2013 4 256 Xerox WorkCentre 5790 Family REP 11 17 110 Repairs Adjustments ...
Page 1014: ...May 2013 4 276 Xerox WorkCentre 5790 Family REP 11 15 120 Repairs Adjustments ...
Page 1166: ...May 2013 4 428 Xerox WorkCentre 5790 Family REP 14 20 Repairs Adjustments ...
Page 1168: ...May 2013 4 430 Xerox WorkCentre 5790 Family ADJ 3 1 ADJ 3 2 Repairs Adjustments ...
Page 1174: ...May 2013 4 436 Xerox WorkCentre 5790 Family ADJ 4 1 Repairs Adjustments ...
Page 1242: ...May 2013 4 504 Xerox WorkCentre 5790 Family ADJ 14 1 ADJ 14 2 Repairs Adjustments ...
Page 1386: ...May 2013 6 2 Xerox WorkCentre 5790 Family General Procedures Information ...
Page 1524: ...May 2013 6 140 Xerox WorkCentre 5790 Family Fax Tags General Procedures Information ...
Page 1526: ...May 2013 7 2 Xerox WorkCentre 5790 Family Wiring Data ...
Page 1554: ...May 2013 7 30 Xerox WorkCentre 5790 Family PJ Locations Wiring Data ...
Page 1604: ...May 2013 8 2 Xerox WorkCentre 5790 Family Accessories ...
Page 1606: ...May 2013 8 4 Xerox WorkCentre 5790 Family ACC 1 Accessories ...
Page 1610: ...XEROX EUROPE ...