Technical data
9030/40 Diagnostics 5-5
Service Panel Switches
Switch
Function
SELF
TEST
Pressing this latching switch initiates a continuous system self-test.
As
long as the
switch
is
latched, continous self testing occurs. Pressing the switch again, unlatching
it,
terminates the self-test.
RESET
Pressing this switch resets the system, stopping
all
running programs
and
resetting
all
I/O select codes. After reset, the system waits for further instructions.
START Pressing this switch initiates system run from an idle state. If the system does not
restart, the computer must be turned off and then powered up.
MEMDUMP
Pressing this switch dumps the contents of main memory onto the system disc. This
switch should be used only when a load fault occurs
and
no
system message
is
displayed.
Service Panel LEDs
LED Indication When
Lit
Cure
POWER
ON
Power supply
is
working, and power
is
Normal operation.
being provided to the computer.
RUN
Operating system
is
running.
Normal operation.
SELF
TEST
Self-test
is
running. This
LED
turns on Determined by other LEOs.
when the self-test begins and turns off
when the self-test completes. It normally
remains on when a failure occurs;
another
LED
lights to indicate the na-
ture of the failure.
PROCESSOR
1-12 Finstrate
in
the specified processor stack Check finstrate.
slot failed to pass self-test.
100-6
Interface card
in
the specified
I/O
slot Check I/O card. peripheral device, inter-
failed to pass self-test. face cable.
LOAD Operating system
is
being loaded during If light remains on, see Fault Indicators
the power-up sequence. The light goes (Sheet 2)
in
Chapter
4.
off after the load
is
completed.
DOOR
Interface card cage door or processor Close door(s), tighten thumbscrews.
stack door
is
open.
TEMP
Processor stack temperature has ex- Check ambient air temperature, airflow,
ceeded
100°e.
fans. power supply assembly.
PS
Main power has been shut down. Check power supply assembly, I/O
cards, finstrates, system control module,
motherboard.
I/O
backplane.
SCM
System control module
is
faulty. Check SCM.