Diagnostics; Self-Diagnostics - Xerox Document FaxCentre 165c Service Manual

5.1 SELF-DIAGNOSTICS

The facsimile machine automatically runs a diagnostic program (SELF-DIAG-
NOSTIC TEST) the first time it is powered on and on reactivation after a power failure
or disconnection from the mains:
- if the self-diagnostic test is passed, the facsimile machine enters standby mode
- if the self-diagnostic test is failed as a result of a correctable error, the facsimile
machine displays an error code on the display.
If this occurs, you must always replace the motherboard, unless a keyboard
error occurs (in this case you must replace the console board or the flat cable that
connects it to the motherboard).
The self-diagnostic routine tests the following components:
• EPROM
• keyboard
• printer.
The self-diagnostic test stops at the first test in which a fault is detected.
XEROX DFC165 & DWC165c Service Manual

5. DIAGNOSTICS

5-1