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Troubleshooting
AWG2005 Service Manual
6Ć63
Use this procedure to
determine if the A6 CPU board
or the frontĆpanel module is
bad.
Do all
front panel LEDs
turn on and then turn
off a short time
later?
Push the ON/STBY
button.
Replace the
front panel
module
(page 6Ć24).
Does one front
panel LED turn on and
then turn off, followed by the next
LED until all LEDs have
turned on and then
turned off?
Do the
front panel
LEDs turn
on?
The front panel
module is ok.
Replace the A6 CPU
board (page 6Ć45).
Yes
Yes
Yes
No
No
No
No
Turn on the PRINCIPAL
POWER SWITCH.
Is there
5 V between
TP101 (GND) and
TP100 (see Figure
6Ć31)?
Yes
No
No
Yes
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
Do all
front panel LEDs
turn on and then turn
off a short time
later?
Figure 6Ć30:ăTroubleshooting Procedure 2 Ċ A6 CPU Board or FrontĆpanel Module