Oki B6200 Series, Maintenance Manual

Page: 69 / 679

1 - 53
Chapter 1 Troubleshooting
4.2 Level 2 FIP
FIP2.1 LVPS (PL12.1.5)
Step
Check Yes No
Possible causative parts:
LVPS (PL12.1.5)
HVPS/MCU (PL12.1.19)
HARNESS ASSY LVPS (PL12.1.1)
1
Checking LVPS (PL12.1.5) control power
Remove SHIELD PLATE LVPS. (RRP12.1)
Disconnect P/J41 from LVPS.
Turn the power ON.
Check the voltages below are in specified value.
P/J41-1 <=> P/J41-2: 3.3 V
P/J41-4 <=> P/J41-3: 5 V
Go to step 2.
Replace LVPS.
(RRP12.3)
2
Checking LVPS driving power
Disconnect P/J42 from LVPS.
Turn the power ON.
Is the voltage across P/J42-1 <=> P/J42-2, 24 VDC?
Go to step 3.
Go to FIP2.9
INTERLOCK S/W
24V,
FIP2.11
INTERLOCK S/W
REAR or
FIP2.12 SWITCH
I/L ASSY.
3
Checking HARNESS ASSY LVPS for continuity
Turn the power OFF.
Disconnect P/J11 from HVPS/MCU.
Disconnect P/J41 from LVPS.
Is each cable of J11 <=> J41 continuous?
Go to step 4.
Replace
HARNESS ASSY
LVPS.
4
Checking AC power source
Is AC power supply outlet appropriately wired and
earthed? Replace
HVPS/MCU.
(RRP12.10)
Inform the client
or the electrician.