Duplex Communications Failure Rap - Xerox Phaser 790 Service Manual

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Table of Contents

003-311 Duplex Communications Failure RAP

The Control Logic detected a communication failure with the Duplex Controller PWB.

Initial Actions

Ensure that connector P/J 142 is properly seated on the Duplex Controller PWB.

Remove the ESS PWB (REP 1.9) and check the P/J 22 on the MCU PWB. Ensure that it

is properly seated on the PWB.

Perform the following:

Go to Flag 1. Check the wires between the Duplex Controller PWB and the MCU PWB for

an open circuit.

If the previous check is OK, replace the Duplex Controller PWB (PL 15.6).

If the problem continues, replace the MCU PWB (PL 11.2).

Initial Issue

Phaser 790/DocuColor 2006

Status Indicator RAPs

Table of Contents

Docucolor 2006