May 2013
2-598
Xerox® WorkCentre® 5790 Family
OF3
Status Indicator RAPs
OF3 Dead Machine RAP
Use this RAP to diagnose problems with the LVPS that give the following symptoms:
•
The machine does not respond after the power button on the UI has been pressed
•
The machine responds for an instant to the power button on the UI having been pressed,
with a beep, a click or a momentary LED flash, but no power or lights on the UI, no fans
running, no motors on and no solenoids on. There may be a slight clicking noise from the
relays in the LVPS along with slight flashing of some LEDs on the IOT PWB every five to
six seconds
•
Directly after a FAX kit has been installed, the only LED on the IOT PWB that is lit is CR36
(+3.3V standby), or the UI touch screen is blank, or an alternating red/green/black check-
erboard is displayed on the UI touch screen.
Initial Actions
•
If the machine has a
TAG 155
IOT PWB, ensure the mandatory
TAG 156
has been
installed.
•
If the UI touch screen is black or blank, but the LVPS fan is running, or there is an LED lit
on the UI, go to the
OF2
Touch Screen Failure RAP
•
The LVPS can shut down in response to a power surge, requiring a reset. Disconnect the
machine from the AC power supply and leave it disconnected for two minutes, then re-
connect
•
If the problem occurs while entering or exiting sleep mode, go to
01K
Sleep Mode RAP
•
Ensure that the correct LVPS and base module has been installed, refer to
PL 1.10 Item 3
•
If a FAX kit has just been installed and the machine will not respond to the on/off button,
the only LED on the IOT PWB that is lit is CR36 (+3.3V standby), the UI touch screen is
blank, or an alternating red/green/black checkerboard is displayed on the UI touch
screen, go to the
Fax Installation Checkout
.
Checkout Options
If an LVPS test box,
PL 26.11 Item 7
is available, go to
LVPS Test Box is Available
. If an LVPS
Test Box is not available go to
LVPS Test Box is Not Available
.
LVPS Test Box is Available
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.
1.
Remove the power and control assembly,
REP 1.1
.
2.
Refer to
Figure 2
and
Figure 3
. Make the following connections:
•
P27 from the top of the IOT PWB to J27on the test box.
•
P26 from the top of the IOT PWB to J26 on the test box.
•
The supplied test harness into J97 on the test box.
•
P24 from the test harness into J24 on top of the LVPS.
•
P25 from the test harness to J25 on the side of the LVPS.
•
P16 from the test harness to J16 on the side of the LVPS.
•
P17 from the test harness to J17 on the side of the LVPS.
•
The supplied connector with a loop wire into J5 on the IOT PWB.
3.
Connect the power cord and switch on. Allow a few seconds for the LVPS to stabilise.
Observe the LEDs on the test box. The Amber LED is lit.
Y
N
Check that all the connections have been made correctly. Check that there is a good AC
neutral, AC live and ground supply at the customers AC supply point and at the machine
end of the main power cord. If the AC power supply and connections are good, install a
new LVPS and base module,
PL 1.10 Item 3
.
The green LED is lit.
Y
N
The red LED is lit or flashing. This indicates the following failures:
•
Flashing at 1Hz indicates a +24V failure
•
Flashing at 0.33Hz an AC fuser output failure
•
Permanently lit indicates a failure of 3.3VSB, +5V(1), +5V(2), +12V(1), +12V(2) or
+12V sleep
Install a new LVPS and base module,
PL 1.10 Item 3
.
The LVPS has passed the test, but there may be a problem with the IOT PWB.
Perform the following IOT PWB check:
1.
Switch off the power to the LVPS and disconnect the power cord.
2.
Disconnect P26 and P27 from the test box.
3.
Connect P26 to J26 on the IOT PWB.
4.
Connect P27 to J27 on the IOT PWB.
5.
Leave all other connections unchanged.
6.
Allow a minimum of 2 minutes before the next switch on to allow the LVPS to recover from
any shut downs.
7.
Reconnect the power cord and switch on the power to the LVPS.
CR12
,
CR13
,
CR15
and
CR36
on the IOT PWB are all lit.
Y
N
Install a new IOT PWB,
PL 1.10 Item 2
.
CR16 on the IOT PWB is lit.
Y
N
Switch off the power to the LVPS and disconnect the power cord. Disconnect
P/J14
. Wait
2 minutes for the LVPS to recover from the +24V shutdown. Reconnect the power cord
and switch on the power to the LVPS. CR16 on the IOT PWB is lit.
Y
N
There is a short circuit on the +24V output from the IOT PWB or an open circuit on
the +12V interlock circuit.
•
Refer to the circuit diagrams in the
01G
+24V Distribution RAP. Also refer to the
01H
Short Circuit and Overload RAP to locate and repair the short circuit.
Install a new IOT PWB,
PL 1.10 Item 2
. Again perform the IOT PWB check to
ensure that the IOT PWB is now good.
•
To check for an open circuit on the +12V interlock circuit, refer to the
01-300
Front Door Open RAP circuit diagram.
A
B
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 ...