94
7521
7521
N/B MAINTENANCE
N/B MAINTENANCE
7.2 NO DISPLAY
There is no display on both LCD and monitor
NO DISPLAY
YES
Connect the I/O device
& cables to the system
one at a time to find out
the faulty parts then
replace and end.
Replace motherboard or into
board-level
Troubleshooting.
Plug PIO debug board to PIO
port and get the 378h error code.
Is there
any error code
shown on debug
board ?
Check system clock or reset
circuit and major chip for any
cold solder.
NO
Refer to the error
code description
and find out the
error.
YES
1. Check if power system is O.K .
2. Remove all the I/O device
from system.
YES
NO
Reboot
and display
OK?
Check switch setting or
replace a known good
battery.
NO
Reboot
and display
OK?
Replace the faulty
parts then end.
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