Table 1-45 Error Code U6-5 Iot Asic Fail Power Off/On - Xerox DOCUPRINT N4525 Service Quick Reference Manual

RAP 1-17
Error Code U6-5
There is a problem with ASIC-CRUM.
Logic control on the Print Engine Controller Board detect an ASIC-CRUM control
circuit error.

Table 1-45 Error Code U6-5 IOT ASIC Fail Power Off/On

Step Actions and Questions
1 RESET
1. Switch off printer main power.
2. Wait one minute.
3. Switch on printer main power.
Does the U6-5 error code appear?
LOW VOLTAGE POWER SUPPLY +5VDC
2
CHECK
Measure the voltage between J400, pins 1, 2 & 3 (on the
Print Engine Controller Board) and frame ground.
Is there +5VDC between J400, pins 1,2 & 3 and
frame ground?
INPUT/OUTPUT BOARD REPLACEMENT
3
Replace the Input/Output Board (RRP 1-70).
Does the error code appear?
4 PRINT ENGINE CONTROLLER BOARD
REPLACEMENT
Replace the Print Engine Controller Board (RRP 1-72).
Does the error code appear?
5 The following printer components and areas are
associated with this specific problem. One or more of
these components or areas may have failed partially or
completely. If you cannot isolate this problem using the
steps in this Repair Analysis Procedure, replace each
component or troubleshoot each area listed below, one at
a time, until you isolate and solve the problem.
Wiring and connectors linking the components


System Controller Board (RRP 1-73)


Laser Print (EP) Cartridge.


Volume 1 / Print Engine - Error Codes & Messages
IOT ASIC Fail
Power Off/On
Yes
Go to step 2
Go to step 3
Go to step 4
Go to step 5
No
Suspect an
intermittent
problem with
the
Input/Output
Board, the
Print Engine
Controller
Board, the
Low Voltage
Power Supply,
or the
connectors
and wiring
linking these
components.
Replace the
Low Voltage
Power Supply
Assembly
(RRP 1-67)
Problem
solved
Problem
solved
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