Xerox Phaser 7760 Service Manual page 196

009-661 Environmental Sensor Temperature
An incorrect value was detected by the Environmental Sensor (Temperature).
Procedure
There is +0.4 VDC to +17 VDC from J404-11 on the MCU PWB to GND.
Y N
There is +5 VDC from J404-12 on the I/F PWB to GND.
A
Status Indicator RAP's
009-661
A
Y N
Check the wires and connectors
Control Board (MCU PWB)
Check for an open circuit and poor contact
ronment Sensor
Replace the I/F PWB
(MCU PWB)
Figure 1 009-661 Environmental Sensor Temperature
January 2010
2-160
(Figure 1). If the check is OK, replace the Engine
(PL 13.1).
(Figure
(PL 1.3).
(PL 9.1). If the problem continues, replace the Engine Control Board
(PL 13.1).
1). If the check is OK replace the Envi-
Revised
Phaser 7760 Color Laser Printer