Removal and Installation Procedures

Use this procedure to

determine if the CPU or the front7panel module is bad.

Turn on the PRINCIPAL POWER SWITCH on the rear panel, and then turn on the ON/STBY button on the front panel

Do

 

 

 

all front panel

No

 

Turn off the PRINCIPAL

LEDs turn on and

 

 

POWER SWITCH ,

the PANEL LOCK

 

 

 

 

remove the cabinet, then

LED blink for a

 

 

 

 

turn the power back on.

Is the voltage

of TP030 on A10 No board : 5￿V

￿see Figure

while?

 

Yes

 

Do

No

the Front Panel

 

buttons work

 

correctly?

 

6-30￿

Yes

Fix the problem on A10 board.

 

Yes

Are all front

 

 

 

 

 

 

 

 

 

 

panel cables securely

No

Securely install and/ or replace

 

 

installed in their sockets

 

 

 

 

the front panel cables.

The front panel

 

 

and are the cables

 

 

 

 

 

module is ok.

ok?

 

 

 

 

 

 

 

 

 

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace the CPU module.

Figure 6-28: Troubleshooting procedure 2 , CPU or front panel module

AWG710 Service Manual

6-55