Level 2 Fip - Epson AcuLaser C2800 Service Manual

AcuLaser C2800/C2800D/C3800/C3800D

3.3.2 Level 2 FIP

FIP 2-1 REGI SENSOR
Possible parts that caused the error
HARNESS ASSY REGI SNR
HARNESS ASSY R SIDE
Troubleshooting
Step Check
Check the connection of the REGI SENSOR
1
Check the connection state between REGI
SENSOR and PWBA MCU.
Are P/J23, P/J232, and P/J2322 connected
correctly?
Check the continuity of the HARNESS ASSY
2
REGI SNR
Is the continuity between P/J232 <=> P/J2322
normal?
Check the continuity of the HARNESS ASSY
3
R SIDE
Is the continuity between P/J23 <=> P/J232
normal?
Check the power voltage supply to the REGI
4
SENSOR
Measure the voltage between PWBA MCU
ground <=> P/J23-8PIN.
Is the power voltage (approx. +3.3 V) output?
Check the operation of the REGI SENSOR
5
Measure the voltage between PWBA MCU
ground <=> P/J23-10PIN.
Does the voltage change when the REGI
SENSOR is shielded from light?
TROUBLESHOOTING
REGI SENSOR
PWBA MCU
Yes No
Go to Step [2]. Reconnect P/J23,
P/J232, and
P/J2322 correctly.
Go to Step [3]. Replace the
HARNESS
ASSY REGI
SNR.
Go to Step [4]. Replace the
HARNESS
ASSY R SIDE.
Go to Step [5]. Replace the
PWBA MCU.
(p.343)
Replace the Replace the REGI
PWBA MCU. SENSOR.
(p.343) (p.253)
Engine-related Trouble FIP
FIP 2-2 SOLENOID FEED MSI
Possible parts that caused the error
SOLENOID FEED MSI
HARNESS ASSY R SIDE
Troubleshooting
Step Check
Check the connection of the SOLENOID
1
FEED MSI
Check the connection state between
SOLENOID FEED MSI and PWBA MCU.
Are P/J23 and P/J256 connected correctly?
Check the continuity of the HARNESS ASSY
2
R SIDE
Is the continuity between P/J23 <=> P/J256
normal?
Check the power voltage supply to
3
SOLENOID FEED MSI
1. Close the interlock switch (HARNESS
ASSY INTERLOCK) before performing
the following work.
2. Measure the voltage between PWBA
MCU ground <=> P/J23-17PIN.
Is the power voltage (approx. +24 V) output?
Revision C
PWBA MCU
Yes No
Go to Step [2]. Reconnect P/J23
and P/J256
correctly.
Go to Step [3]. Replace the
HARNESS
ASSY R SIDE.
Replace the Replace the
SOLENOID PWBA MCU.
FEED MSI. (p.343)
(p.226)
121
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