Oki B6200 Maintenance Manual page 62

Step
Checking 24 V power line
Remove SHIELD PLATE HVPS (PL12.1.18).
Check if P/J10 is connected to HVPS/MCU.
Remove EP CARTRIDGE.
6 Check as follows, if each voltage is 24VDC.
P/J10-1 <=> P/J10-4
P/J10-2 <=> P/J10-5
P/J10-3 <=> P/J10-6
P/J10-8 <=> P/J10-7
Checking CLUTCH REGI (PL5.1.23)
Remove SHIELD PLATE HVPS (PL12.1.18).
7 Disconnect P/J243.
Remove EP CARTRIDGE.
Does FAN MAIN rotate, when the power is turned ON?
Checking OPERATION PANEL
Disconnect HARNESS ASSY PANEL from PWBA ESS.
8 Remove EP CARTRIDGE.
Does FAN MAIN rotate, when the power is turned ON?
Check with the wind from exhaust on back of the printer.
Checking HARNESS ASSY PANEL for continuity
Disconnect HARNESS ASSY PANEL from PWBA ESS.
9
Is there any open circuit or short circuit on the harness,
and is every cable continuous?
Checking ROS ASSY
Disconnect P/J13, P/J14, P/J16 and P/J17 from HVPS/
10 MCU.
Remove EP CARTRIDGE.
Does FAN MAIN rotate, when the power is turned ON?
Checking PWBA FEEDER
Disconnect P/J20 from HVPS/MCU.
11
Remove EP CARTRIDGE.
Does FAN MAIN rotate, when the power is turned ON?
Checking INTERLOCK S/W
Disconnect P/J44 and P/J45 from LVPS.
Are the followings continuous when pushing the lever of
12
INTERLOCK S/W, and not continuous when releasing?
P/J44-1 <=> P/J44-3
P/J45-1 <=> P/J45-3
Checking SWITCH I/L ASSY
Disconnect P/J411.
13
Is it continuous between P/J411-2 <=> P/J411-1, when
SWITCH I/L ASSY is pushed, and is not when released?
Checking CLUTCH ASSY PH
Disconnect P/J242 and P/J247 from HARNESS ASSY
14 TRAY 1/2.
Remove EP CARTRIDGE.
Does the FAN MAIN rotate, when the power is turned ON?
Check
1 - 46
Chapter 1 Troubleshooting
Yes
Go to step 7.
Go to FIP2.15
CLUTCH REGI.
Go to step 9.
Replace
OPERATIONAL HARNESS ASSY
PANEL. (RRP1.4)
Replace ROS
ASSY. (RRP8.1)
Replace PWBA
FEEDER 550.
(RRP20.8)
Go to step 13.
Replace SWITCH
Go to step 14.
Go to FIP2.16
CLUTCH ASSY
PH.
No
Go to FIP2.1
LVPS.
Go to step 8.
Go to step 10.
Replace
PANEL.
Go to step 11.
Go to step 12.
Replace
INTERLOCK
S/W.
(RRP8.5, 12.5)
I/L ASSY.
(RRP1.6)
Go to step 15.