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Troubleshooting
Maintenance
832
Yes
No
No
Use this procedure to
determine if a problem is
caused by the Front Panel
module or the Main board.
Press the
ON/STBY button
to the on position.
Is
the ON/STBY
button working
correctly?
No
Yes
Is
the bezel
flex circuit securely
installed in J40
and is the flex
circuit securely
mounted on
chassis?
Do all the
Front Panel
LEDs turn on
and then off a
short time
later?
Replace the Front
Panel module.
Securely install
and or replace
the bezel flex
circuit.
No
Do
the Front Panel
LEDs turn on
at all?
Yes
No
Yes
Is
the Front
Panel cable
securely installed at
J30 and J603 and is
the cable
ok?
Securely install
and/or replace
the Front Panel
cable.
Replace the
Main board.
No
Yes
Is
there 5 V on
pins 2 and 4 of
J30?
Securely install
and or replace
the bezel flex
circuit.
Yes
No
Yes
Do the
Front Panel
controls
operate
correctly?
Front Panel
Module is ok.
Replace the
Front Panel
Module.
Figure 819:Front Panel/Processor Troubleshooting Procedure
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