Gestetner G060, Service Manual

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CONTROLLER SELF-DIAGNOSTICS
SM 5-57 G060
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5.5 CONTROLLER SELF-DIAGNOSTICS
5.5.1 OVERVIEW
There are three types of self-diagnostics for the controller.
•
Power-on self-diagnostics: The machine automatically starts the self-diagnostics
just after the power has been turned on.
•
Detailed self-diagnostics: The machine does the detailed self-diagnostics by
using a loop-back connector (P/N G0219350)
•
SC detection: The machine automatically detects SC conditions at power-on or
during operation.
The following shows the workflow of the power-on and detailed self-diagnostics.
P o w e r O N
Diagnostic RAM Check
C P U C h e c k
A S I C C h e c k
Standard RAM
Conection Check
Optional RAM
Connection Check
Clock Generator Check
S t a n d a r d N V R A M
C h e c k
Font Header Check
Optional NVRAM Check
Real Time Clock Check
Network Check
Engine I/F Check
Interrupt Check
Memory Chip Check
Power-on or
Detailed
R O M S u m C h e c k
Standard RAM Detailed
C h e c k
Optional RAM Detailed
C h e c k
S t a n d a r d N V R A M
Detailed Check
Optional NVRAM
Detailed Check
Optinoal HDD Check
IEEE1284 Loop-back
C h e c k
Real Time Clock
Detailed Check
F o n t R O M S u m C h e c k
E N D
Power-on
Detailed
N G
S C 8 2 1
N G
S C 8 2 0
N G
S C 8 3 8
.'
S C 8 2 6
N G
S C 8 2 8
N G
S C 8 2 9
N G
S C 8 2 6
N G
Error Logged
N G
Error Logged
N G
Error Logged
N G
Error Logged
A
N G
Error Logged
N G
Error Logged
N G
Error Logged
N G
Error Logged
N G
Error Logged
N G
Error Logged
A
N G Not initialized
N G
S C 8 2 9
N G
S C 8 2 7
N G S C 8 2 4
N G
Not use optional RAM
Error Logged