Epson ColorPage EPL-C8000 Service Manual page 419

EPSON EPL-C8000
FIP-2.19 "ROS ASSY is Defective" (Continued)
Step Check point
Check: MAIN HARNESS ASSY continuity
l
Does the MAIN HARNESS ASSY have proper
continuity at the pins below?
- J33-2PIN<=>P195-2PIN
9
- P195-1PIN<=>J196-2PIN
- P196-1PIN<=>J194-1PIN
- J193-1PIN<=>J33-1PIN
Check: TOP COVER SWITCH electrical continuity
l
Does the TOP COVER SWITCH have proper continuity
status depending on the conditions below?
10
- Pins: J195-1PIN<=>J195-2PIN
- Contact area is pushed: Close
- Contact area is released: Open
Check: TOP COVER ASSY for its notche's operation
l
Is the notch in the TOP COVER ASSY pushing in the
11
contact area of the TOP COVER SWITCH when the
TOP COVER ASSY is installed?
Check: FRONT COVER SWITCH R electrical continuity
l
Do the terminals in the FRONT COVER SWITCH R
have proper continuity status depending on the
12
conditions below?
- FRONT COVER is closed: Close
- FRONT COVER is open: Open
Check: FRONT COVER ASSY for notche's action
l
Is the notche in the COVER ASSY pushing in the
13
contact point in the FRONT COVER SWITCH R when
the FRONT COVER ASSY is closed?
Check: MAIN HARNESS ASSY electrical continuity
l
Does the MAIN HARNESS ASSY have proper
14
continuity at the pins below?
- J116<=>J18
Check: MCU PWB replacement
l
15
Does the problem still occur after replacing the MCU
PWB?
Chapter 5 TROUBLESHOOTING
Remedy
Yes
Go to Step 10.
Go to Step 11.
Go to Step 12.
Go to Step 13.
Go to Step 14.
Go to Step 15
Replace the ROS ASSY.
No
Replace the MAIN HARNESS ASSY.
Replace the TOP COVER SWITCH.
Replace the interfering part.
Replace the FRONT COVER SWITCH
R.
Replace the interfering part.
Replace the MAIN HARNESS.
Problem solved.
Rev. B
5-85