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Chapter 1 Troubleshooting
FIP1.41 HVPS/MCU
Step Check
Yes
No
Possible causes:
HVPS/MCU (PL12.1.19)
GUIDE ASSY CRU R (PL8.1.25)
EP CARTRIDGE
HARNESS ASSY ANT (PL8.1.24)
HARNESS ASSY LVPS (PL12.1.1)
1
Checking the power by GUIDE ASSY CRU R
Is GUIDE ASSY CRU R installed appropriately?
Does the conducting part of GUIDE ASSY CRU R
make contact with the plate of HVPS/MCU and EP
CARTRIDGE appropriately?
Confirm whether HVPS/MCU is assembled under the
hook of FRAME.
Go to step 2.
Replace GUIDE
ASSY CRU R.
(RRP8.13)
Work over the
installation of
HVPS/MCU
again.
(RRP12.10)
2
Checking GUIDE ASSY CRU R
Remove GUIDE ASSY CRU R. (RRP8.13)
Is the Plate Earth of GUIDE ASSY CRU R damaged or
soiled?
Go to step 3.
Replace GUIDE
ASSY CRU R.
(RRP8.13)
3
Checking 24 V to HVPS/MCU
Remove EP CARTRIDGE.
Is the voltage across P/J10-1(+) and P/J10-4(-) on
HVPS/MCU, 24 VDC?
Go to step 5.
Go to step 4.
4
Checking HARNESS ASSY LVPS for continuity
Disconnect P/J10 from HVPS/MCU.
Disconnect P/J42 from LVPS.
Is there continuity between P/J10 and P/J42?
Go to FIP1.24
LVPS.
Replace HAR-
NESS ASSY LVPS.
5
Checking HARNESS ASSY ANT for continuity
Disconnect P/J15 from HVPS/MCU.
Is J15 and J150?
Replace HVPS/
MCU.
(RRP12.10)
Replace HAR-
NESS ASSY ANT.
JG54A7AB
HOOK
