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Removal and Installation Procedures
AWG510 & AWG520 Service Manual
6-59
Do
all front panel LEDs
turn on and then turn
off later?
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 there
5 V between TP101
(GND) and TP100
(see Figure
6-31)?
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/A11 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
Power the generator off
and remove the cabinet,
then the power back on.
Figure 6-30: Troubleshooting procedure 2 Ċ CPU or Front Panel module