Oki B6200 Maintenance Manual page 72

Step
Checking /ROSMOT ON signal of Scanner Motor
Install EP CARTRIDGE.
Close COVER OPEN (PL1.1.2).
9
Is P/J13-3 <=> P/J13-2 on HVPS/MCU, 0 V just after when
the power is turned ON, and 5VDC 10 seconds after
stopping MAIN MOTOR?
Checking HARNESS ASSY ROS for continuity
10 Disconnect P/J13 from HVPS/MCU.
Is each cable of P/J13 <=> P/J130 continuous?
Checking HARNESS ASSY ROS for continuity
Disconnect P/J17 and P/J16 from HVPS/MCU.
Disconnect P/J170 and P/J160 from ROS ASSY.
11
Are the following continuous normally?
P/J17 <=> P/J170
P/J16 <=> P/J160
Checking SOS power circuit of ROS ASSY
Disconnect P/J140 from ROS ASSY.
Are the following continuous normally?
12
P/J140-8 <=> P/J201-1
P/J140-6 <=> P/J201-2
P/J140-7 <=> P/J201-3
Checking after replacing HVPS/MCU
13 Replace HVPS/MCU. (RRP12.10)
Does the problem still occur, after replacement?
Checking after replacing ROS ASSY
14 Replace ROS ASSY. (RRP8.1)
Does the problem still occur, after replacement?
Check
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Chapter 1 Troubleshooting
Yes
Go to step 11. Go to step 10.
Replace
HVPS/MCU. HARNESS ASSY
(RRP12.10)
Go to step 12. HARNESS ASSY
Replace ROS
Go to step 13.
ASSY. (RRP8.1)
Go to step 14.
Go to FIP2.19
Electrical Noise.
No
Replace
ROS.
Replace
ROS.
End of work
End of work