Self-Diagnostic Mode; Self-Diagnostic Mode At Power On - Gestetner B003 Service Manual

5.4 SELF-DIAGNOSTIC MODE

5.4.1 SELF-DIAGNOSTIC MODE AT POWER ON

As soon as the main machine is powered on, the controller waits for the initial
settings of the copy engine to take effect and then starts an independent self-
diagnostic test program. The self-diagnostic test follows the path of the flow chart
shown below and checks the CPU, memory, HDD, and so on. An SC code is
displayed in the touch panel if the self-diagnostic program detects any malfunction
or abnormal condition.
Self-Diagnostic Test Flow
SM
P o w e r O n
Initialization
Memory Check for
Self-Diagnostic Test
Self-Diagnostic
Mode Selection
C P U C h e c k
A S I C C h e c k
M e m o r y C h e c k
P r o g r a m R O M ,
D I M M C R C C h e c k
S S C G C h e c k
O P C C h e c k
N V R A M C h e c k
H D D C h e c k
I E E E 1 2 8 4
I/F Check
5-67
SELF-DIAGNOSTIC MODE
F o n t R O M C h e c k
R T C C h e c k
IC Card
I/FCheck
Network Check
Engine I/F Check
Illegal Interrupt
C h e c k
System OS,
Application Check
B004S516.WMF
B003/B004/B006/B007