10-2 Phaser 7400 Color Printer Service Manual
Plug/Jack Locator Diagrams
The P/J Locator diagrams show the location of primary connections within the printer.
and optional sheet feeders. Use these illustrations to locate connections called out in
the troubleshooting procedures presented in Sections 3, 4, and 5.
To find the location of a Plug or Jack:
1. Locate the P/J connector designator in the first column of the table.
2. With this information, go to the map listed in the second column.
3. Use the coordinates to quickly locate the connection indicated on the map with
its P/J designation number.
Print Engine Plug/Jack Designators
Print Engine Plug/Jack Designators
P/J Map Coordinates Remarks
30 7 I-839 Connects the Feed Motor to the REGHOP harness.
40 7 I-839 Connects the Registration Motor to the REGHOP harness.
41 2 I-839 Connects the Door B Detect Sensor to the TRYSNS2 harness.
42 7 G-841 Connects the Registration #2 Sensor to the TRYSNS2 harness.
43 7 G-841 Connects the Feed-Out #2 Sensor to the TRYSNS2 harness.
44 7 G-841 Connects the No Paper Sensor to the PAPEND harness.
50 7 G-838 Connect the Waste Toner Motor the WTDC harness.
80 1 D-838 Connect the Registration Shutter Solenoid to the SHUT harness.
81 1 E-837 Connects the SHUT harness to the Motor Driver Board.
90 7 C-837 Connects the Offset Motor to the JOFMOT harness.
100 7 B-839 Connects the Imaging Unit Fan to the IDFAN harness.
120 7 B-839 Connects the Transfer Unit Motor to the Transfer Motor harness.
130 2 B-837 Connects the Door E Detect Sensor to the Exit SNR harness.
140 2 D-837 Connects the Fuser Exit Sensor to the Exit SNR harness.
150 7 E-837 Connects the Offset Position Sensor to the Exit SNR harness.
160 7 E-836 Connects the Top Output Tray Stack Full Sensor to the Exit SNR
harness.
170 7 D-836 Connects the Side Output Tray Stack Full Sensor to the Exit SNR
harness.
180 2 E-836 Connects the Side Output Tray Detect Sensor to the Exit SNR
harness.