GE LOGIQ E9 Service Manual page 408

D 5180483-100, R
IRECTION
Table 7-51
BEP PS isolation
LCD monitor has no display and
the fans are running high
PROPRIETARY TO GE
. 7
EV
System not booting up
Symptom
Check LEDs for PS_ON, 5Vstb
and 48V in.
Troubleshoot the LCD on the
Op Panel.
Disconnect the following
devices to eliminate possible
causes of over current:
· DVD drive
· V NAV drive bay
· BEP I/O Board
(Bottom connector inside
the BEP)
· DVR card (if present, not a
likely problem)
Attempt to reset the BIOS as
described in Section
"Resetting the BEP BIOS
Memory" on page
Chapter 7 Diagnostics/Troubleshooting
LOGIQ E9 P
Task / Conclusion
If all are present and FPO is ON, BEP PS may
be defective.
If so, you should be able to have 48V
measurable at Test connector of
BEP I/O, pin 4.
Pin 3 is the +24 V (there is no LED) if coming
up in simulator mode.
Disconnect J22 and short pins 12 to 24, or use
Power Button to observe if the BEP powers up.
If it does not turn ON, then disconnect the
cable to the backplane.
If not, check BEP devices.
If power is reestablished, troubleshoot
individual devices disconnected. If no power,
replace BEP PS.
If Resetting the BEP BIOS Battery does not
7-8-2-1
restore display, replace the BEP.
7-179.
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ROPRIETARY ERVICE ANUAL
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