10-2 Phaser 6121MFP Service Manual
Wiring
Plug/Jack Designations and Locator Diagrams
This chapter contains the plug/jack designators, locator diagrams, and wiring
diagrams for the print engine, Scanner, and ADF.
The Plug/Jack Locator diagrams show the P/J locations within the printer. Use
these illustrations to locate connections called out in the Troubleshooting
procedures presented in Sections 3, 4, and 5.
1. Locate the P/J connector designator in the following table.
2. With this information, go to the associated map.
3. Use the coordinates to locate the connection indicated on the map with its P/J
designation number.
4. The Description column provides a brief description of each connection.
Print Engine Plug/Jack Designators
Print Engine Plug/Jack Designators
Map P/J Coordinates Description
Engine Control Board
1 P/J1 B-138 Connects Engine Control Board to P/J10 of the Image
Processor Board
1 P/J2 J-137 Connects Engine Control Board to CN5 Power Supply
1 P/J3 J-138 Connects Engine Control Board to CN7 of the Power
Supply
1 P/J5 H-135 Connects Engine Control Board to CN4 of the Rack
Motor, CN6 of the Cleaning Blade Pressure/Retraction
Solenoid, P/J30 of the Developing Motor, and P/J32 of
the Rack Positioning Sensor
1 P/J6 K-136 Connects Engine Control Board to CN4 of the Fuser
1 P/J8 F-134 Connects Engine Control Board to PJ37 of the Main
Motor
1 P/J9 J-135 Connects Engine Control Board to CN1 of the Imaging
Unit
1 P/J10 G-135 Connects Engine Control Board to CN2 of the Tray 1
Feed Solenoid, CN3 of the Conveyance Solenoid, and
CN5 of the 2nd Image Transfer Pressure/Retraction
Solenoid
1 P/J12 H-139 Connects Engine Control Board to P/J40 of the
Registration Sensor, and P/J39 of the 2nd Image
Transfer Retraction Position Sensor (PS3)
1 P/J14 I-140 Connects Engine Control Board to P/J41 of the
Temperature/Humidity Sensor
1 P/J15 I-139 Connects Engine Control Board to P/J42 of the Contact
Switch (SW5)
1 P/J16 I-138 Connects Engine Control Board to the Ventilation Fan
1 P/J17 D-135 Connects Engine Control Board to CN1 of the High
Voltage Board
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