GE M
EDICAL
S
YSTEMS
PROPRIETARY
TO
GE
D
IRECTION
2294854-100, R
EVISION
3
LOGIQ™ 9 P
ROPRIETARY
M
ANUAL
Chapter 7 Diagnostics/Troubleshooting
7-73
7-13-3
No Boot
Check status of the ON/OFF button.
•
If green, perform a hard shutdown by holding the button down until it becomes amber. If the system
was not properly shut down it won’t boot up until the Back End Processor (BEP) is forced to shut
down.
If amber, troubleshoot BEP Minimum configuration. Refer to
7-12-1 "System Does Not Power On / Boot
*
Basically you need to disconnect the PC2IP cable from the back of the BEP to isolate the
Front End and see if that keeps the system from booting up. The Back End Processor will
boot up in simulator mode, which would indicate that the problem is in the Front End.
Check the LEDs on the FEPS. Check all the voltages out of the FEPS with a scope. If any
of the LEDs is not green or the measured voltage is not within specs, replace FEPS.
*
Also, try disconnecting the USB ports from the back of the BEP and reboot. Sometimes
USB devices draw too much current from the BEP motherboard and will keep it from
booting up. If the system boots up with no USB connections, perform a forced shutdown
(you don’t have access to the OP Panel at this point) and reconnect everything to see if
the system boots up normally. If it doesn’t, troubleshoot the USB devices such as the OP
panel and Line printers.
*
If the minimum configuration does not allow the computer to boot up, the problem must
be in the BEP itself. Replace Back End Processor. This is a known problem with the BEP
power supply. There is an FMI that will be coming out to address this. Until then the BEP
is replaced.
•
If not lit, troubleshoot AC distribution box.
*
Check AC power on the system inlet and verify that the circuit breaker is in the ON
position.
*
Check the FEPS fans. When the L9 unit is plugged into AC and the circuit breaker is ON,
1) the FEPS fan is running, and 2) there is a +5V standby coming from the BEP that turns
on the amber light of the ON/OFF LED on the top panel. If neither of these can be
observed, replace the AC Distribution box. If the fan is running, but the +5V standby is
absent, replace BEP.
*
Check the AC output going to the modem, monitor and peripherals. They should be
activated when the system is powered on.
*
Check the AC power going into the BEP. If you don’t hear any clicking when trying to boot
up, it is probably that the relays inside the AC distribution box are not being activated.
Replace AC distribution box.
