Fip-2.9 Msi Edge Sensor Is Defective - Epson ColorPage EPL-C8200 Service Manual

EPSON ColorPage EPL-C8200

FIP-2.9 MSI EDGE SENSOR is Defective

Step Check point
Perform the preliminary inspection.
Parts to inspect:
1
MSI EDGE SENSOR, MSI HARNESS ASSY, REGI.
HARNESS ASSY, P/H HARNESS ASSY, MCU PWB
Check: Power supply to the MSI EDGE SENSOR

2 Is the voltage level correct at the pins below?
- P20-11PIN<=>P20-13PIN: 5VDC
Check:
Power supply to the MSI EDGE detection signal

3
Is the voltage level correct at the pins below?
- P20-10PIN<=>P20-13PIN: 5VDC
Check: MSI EDGE detection signal

Is the voltage level correct depending on the conditions
below?
4
- Pins: P/J20-10PIN<=>P/J20-13PIN
- Reflecting condition (paper is set): 0VDC
- Unreflecting condition (no paper is set): 5VDC
Check: MSI HARNESS ASSY
Does the MSI HARNESS ASSY have proper continuity at
5
the pins below?
- J204<=>P92
Check: REGI. HARNESS ASSY
Does the REGI. HARNESS ASSY have proper continuity
6
at the pins below?
- J92<=>J91
Check: P/H HARNESS ASSY
Does the P/H HARNESS ASSY have proper continuity at
7
the pins below?
- P91<=>J20
Chapter 5 Troubleshooting
Yes
Replace/reinstall the defective part(s).
Go to Step 3.
Go to Step 4.
Replace the MCU PWB.
Go to Step 6.
Go to Step 7.
Replace the MSI EDGE SENSOR.
Remedy
No
Go to Step 2.
Go to FIP-2.1 "LVPS 5VDC is
Defective".
Replace the MCU PWB.
Go to Step 5.
Replace the MSI HARNESS ASSY.
Replace the REGI. HARNESS ASSY.
Replace the P/H HARNESS ASSY.
Revision A
5-78