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Removal and Installation Procedures
AWG710 Service Manual
6-55
Do
all front panel
LEDs turn on and
the PANEL LOCK
LED blink for a
while?
The front panel
module is ok.
Replace the CPU module.
Turn on the PRINCIPAL POWER
SWITCH on the rear panel, and
then turn on the ON/STBY button
on the front panel
Is the voltage
of TP030 on A10
board : 5 V
(see Figure
6-30)
Are all front
panel cables securely
installed in their sockets
and are the cables
ok?
Securely install and/ or replace
the front panel cables.
Yes
No
Fix the problem on A10 board.
Yes
Yes
Yes
No
Use this procedure to
determine if the CPU or the
frontĆpanel module is bad.
Do
the Front Panel
buttons work
correctly?
No
No
Turn off the PRINCIPAL
POWER SWITCH ,
remove the cabinet, then
turn the power back on.
Figure 6-28: Troubleshooting procedure 2 Ċ CPU or front panel module