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3-34 magicolor 330 - Base Engine Service Manual
Primary FIPS: Error Messages
3.31 - Error Message: Call for Service Engine Memory
There is a problem reading information from ROM or from RAM on the MCU PWB.
Logic control on the MCU PWB could not read information in the ROM or in RAM.
Step Actions and Questions Yes No
SUSPECT COMPONENTS
The following components are associated with this specific prob-
lem. One or more of these components may have failed partially or
completely. If you cannot isolate the problem using this FIP,
replace each component listed below, one at a time, until the prob-
lem disappears.
• Wiring and connectors linking the components
• Interlock switches and circuits
1
PRINTER RESTART
1. Switch off printer main power.
2. Wait one minute
3. Switch on printer main power.
Does the error message still appear?
Go to step 2 Treat as an
intermittent
problem
2
+5VDC CHECK
1. Remove the Rear Cover (RRP 9.4)
2. Measure the voltage between P/J33-3 and Frame
Ground.
Do you measure +5VDC between P/J33-3 and Frame Ground?
Go to step 3 Replace the
LVPS (RRP
9.119)
3
Replace the MCU PWB (RRP 9.123)
Does the error message still appear?
Replace the
Controller
PWB (RRP
9.129)
Problem
solved