Gasboy CFN Series Diagnostic Manual - Manual (Page 358)

Site Controller III
12-24 1116
SITE CONTROLLER III PROBLEMS
Site Controller PC is dead. No LED's are lit. The fan is not working.
Possible Cause Checks Corrective Action
Check the site controller PC
power cord. Make sure both ends of the
site controller PC power cord
are installed properly.
If the power outlet strip has a
power switch, make sure the
switch is on. Turn power outlet strip switch
on, if off.
Check the power outlet strip's
fuse or circuit breaker. If the power outlet strip has a
fuse or built-in circuit breaker,
replace or reset as necessary.
Check if circuit breaker is off
or tripped. Turn breaker on, if off.
Check the output voltage of
the power outlet strip. If 115VAC is measured at the
power outlet strip input but not
at the output, replace the
power outlet strip.
No 115VAC power to site
controller PC.
Check if 115VAC is being
switched through circuit
breaker. Replace breaker if 115VAC is
not being switched.
PC power switch is off. Check the PC power switch.
Some newer PCs have a
switch on the back as well. Turn PC power switch on, if
off.
Defective power supply. Measure the output of the
power supply when power is
on. It is easiest to measure at
a free disk drive power
connector. Black wire is
ground, red is +5 volts, and
yellow is +12 volts. If no voltage is measured,
disconnect power from each
disk drive. If a drive is found
to cause the problem, replace
it. If power supply is still not
working, replace PC (C07118).
PC processor is loose in its
socket or has come out of the
socket. Switch power off. Check that
the PC processor is seated in
socket. Re-seat processor if loose or
out of socket.
Defective sound card, Comm
port board, video board, or SC
III board set. Pull all cards from PC
motherboard. Turn on power
and listen for PC to beep. If PC fails to beep or is still
dead, replace PC (C07118). If
PC beeps & starts booting,
shut down and try each
removed board, one at a time
starting with the video board,
until PC fails (be sure to turn
off the power when adding or
removing boards), then
replace defective board or SC
III board set (C07077).