Level 2 Fip; Fip1.24 Lvps - Oki B6500 Troubleshooting Manual

4.2 Level 2 FIP

FIP1.24 LVPS

Step
Possible causes:
LVPS (PL12.1.5)
HVPS/MCU (PL12.1.19)
HARNESS ASSY LVPS (PL12.1.1)
Checking LVPS (PL12.1.5) control power
Remove SHIELD PLATE LVPS. (RRP12.1)
Disconnect P/J41 from LVPS.
1 Turn the power ON.
Check the voltages below are in specified value.
P/J41-1(+) and P/J41-2(-): 3.3 V
P/J41-4(+) and P/J41-3(-): 5 V
Checking LVPS driving power
Disconnect P/J42 from LVPS.
2 Turn the power ON.
Is the voltage across P/J42-1(+) and P/J42-2(-), 24
VDC?
Checking HARNESS ASSY LVPS for continuity
Turn the power OFF.
3 Disconnect P/J11 from HVPS/MCU.
Disconnect P/J41 from LVPS.
Is each cable of J11 and J41 continuous?
Checking AC power source
4 Is AC power supply outlet appropriately wired and
earthed?
Check
1 – 41
Chapter 1 Troubleshooting
Yes
Replace LVPS.
Go to step 2.
Go to FIP2.9
INTERLOCK S/W
24V, FIP1.34
Go to step 3.
INTERLOCK S/W
REAR or FIP2.12
SWITCH I/L ASSY.
Replace HAR-
Go to step 4.
NESS ASSY LVPS.
Replace HVPS/
Inform the client or
MCU.
the electrician.
(RRP12.10)
No
(RRP12.3)