3-100 Phaser 6128MFP Service Manual
Error Messages and Codes
Main Motor Error
The Main Motor has failed. The following troubleshooting procedure applies to this
error.
Applicable Error
• 042-325: Main Motor Error
Initial Actions
• Cycle printer power.
• If the problem persists, follow the procedure below.
7 Check the Registration (KSNR)
harness continuity.
Disconnect P/J26 from the MCU
Board and P/J261 from the solenoid.
Is the harness damaged?
Repair or
replace the
harness
(PL10.8.9).
Go to step 8.
8 Check for +3.3 V at J26 of the MCU
Board.
Is there +3.3 V between ground <=>
J26-1 on the MCU Board when the
Interlock Switch is closed?
Go to step 9. Replace the
MCU Board
(page 8-57).
9 Run the K Mode Sensor test (DI-04)
on (page 4-37).
1. Remove the Feed Drive Assembly
leaving P/J261 and P/J24
connected.
2. Close the Front Cover.
Does the display change when the
sensor is blocked?
Replace the
MCU Board
(page 8-57).
Replace the
Feed Drive
Assembly
(page 8-37).
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack Map References
■ Main Drive, PL7.1.2
■ MCU Board, PL10.7.7
■ Main Motor Harness, PL10.8.7
■ “Map 1 - MCU Board” on page 10-6
■ “Map 3 - Electrical and Drive” on page 10-8
■ “Main Drive” on page 10-16
Troubleshooting Procedure Table (continued)
Step Actions and Questions Yes No
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