Xerox Phaser 6600 Service Manual page 279

092-310 IOT CTD Sensor Error
Step Check
Possible causative parts:
• CTD Sensor Assembly (PL6.1.14)
• Regi Harness Assembly (PL15.2.8)
• MCU Board (PL18.1.13)
1 Check the CTD Sensor surface for any smears or foreign
objects
Are there any smears or foreign objects on the surface of the
CTD Sensor, which is a part of the CTD Sensor Assembly.
2 Check the CTD Sensor Assembly installation
Is the CTD Sensor Assembly installed properly?
3 Check the CTD Sensor Assembly connection
Check the connection between the CTD Sensor Assembly
and the MCU Board.
Are P/J131 and P/J13 connected securely?
4 Check the continuity between the CTD Sensor Assembly and
the MCU Board
Is each cable of P/J131<=>P/J13 continuous?
5 Check the power to the CTD Sensor Assembly (+5 VDC)
Check if the voltage between the MCU Board ground and the
P/J13-1 pin is about +5 VDC.
6 Check after replacing the CTD Sensor Assembly
Replace the CTD Sensor Assembly.
Does the error still occur?
a. Wipe it with a dry, soft cloth (without alcohol).
Xerox Internal Use Only
Error Troubleshooting
Yes
Clean the CTD
a
Sensor surface
or remove the
foreign objects.
Go to step 3.
Go to step 4.
Go to step 5.
Go to step 6.
Replace the MCU
Board.
Phaser 6600 and WorkCentre 6605
Service Manual
No
Go to step 2.
Reinstall the CTD
Sensor Assembly.
Connect P/J131
and P/J13
securely.
Replace the Regi
Harness
Assembly.
Refer to "+5 VDC
Power FIP" on
page 2-223.
Finished.
2-183