Rap 02: Spacing Error - OKIDATA Pacemark 3410 Service Manual

Page: 103
Service Guide PM3410
Chapter 4 Failure & Repair Analysis

RAP 02: Spacing Error

START
Is the carriage assembly binding or jammed?
YES Remove the cause of the carriage jam.
Is the problem resolved?
YES End of procedure.
NO Go to the next step listed below.
NO Replace the Program ROM on the main logic board.
Is the problem resolved?
YES End of procedure.
NO Is fuse F1 on the main logic board open?
NO Go to A.
YES Replace fuse F1.
Is the problem resolved?
YES End of procedure.
NO Go to A.
A
Is +38vdc present on the main logic board? Check at both ends of Capacitor C4.
YES Are the cables to CN3 and CN7 on the main logic board connected correctly?
NO Correctly connect them.
YES Replace the power supply unit or connection cable.
Is the problem resolved?
YES End of procedure.
NO Go to the next step listed below.