Fip-2.13 Rear Ohp Sensor Is Defective - Epson ColorPage EPL-C8200 Service Manual

EPSON ColorPage EPL-C8200

FIP-2.13 REAR OHP SENSOR is Defective

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

2 Is the voltage level correct at the pins below?
P20-9PIN<=>P20-7PIN: 5VDC
Check:
Power supply to the REAR OHP detection signal

3
Is the voltage level correct at the pins below?
- P20-8PIN<=>P20-7PIN: 5VDC
Check: REAR OHP detection signal

Is the voltage level correct depending on the conditions
below?
- Pins: P/J20-8PIN<=>P/J20-7PIN
4 - Photo reflecting status (paper is set): 0VDC
- Photo unreflecting status (no paper is set): 5VDC
NOTE: When setting the conditions, reflecting and
unreflecting, use white paper, not OHP sheet. Use of OHP
sheet will cause failure in judgement since it is transparent.
Check: REGI. HARNESS ASSY electrical continuity

Does the REGI. HARNESS ASSY have proper
5
continuity at the pins below?
- J99<=>J91
Check: P/H HARNESS ASSY

Does the REGI. HARNESS ASSY have proper
6
continuity at 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.
Replace the REAR OHP 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 REGI. HARNESS ASSY.
Replace the P/H HARNESS ASSY.
Revision A
5-82