Epson ColorPage EPL-C8000 Service Manual page 424

EPSON EPL-C8000
FIP-2.24 ROTARY SENSOR is Defective
Step Check point
Perform the preliminary inspection.
1 Parts to inspect:
ROTARY SENSOR, MAIN HARNESS ASSY, MCU PWB
Check:
Power supply to the ROTARY SENSOR. SENSOR
2
l
Is the voltage level correct at the pins below?
- P19-6PIN<=>P17-4PIN: 5VDC
Check: Power supply to the ROTARY SENSOR
detection signal
3
l
Is the voltage level correct at the pins below?
- P19-5PIN<=>P17-4PIN: 5VDC
Check: ROTARY SENSOR detection signal
l
Is the voltage level correct depending on the conditions
below?
- Pins: P/J19-5PIN<=>P/J17-4PIN
4
- Penetrated condition: 0VDC
(= The notch is not detected.)
- Blocked condition: 5VDC
(=The notche is detected.)
Check: MAIN HARNESS ASSY electrical continuity
l
Does the MAIN HARNESS ASSY have proper
5
continuity at the pins below?
- J19<=>J58
Chapter 5 TROUBLESHOOTING
Remedy
Yes
Replace/reinstall the defective part(s).
Go to Step 3.
Go to Step 4.
Replace the MCU PWB.
Replace the ROTARY SENSOR.
No
Go to Step 2.
Go to FIP-2.1 "LVPS 5VDC is
Defective".
Replace the MCU PWB.
Go to Step 5.
Replace the MAIN HARNESS.
Rev. B
5-90