Model 2616RC T-DAC User Manual

5 • Troubleshooting and maintenance

 

 

Fault analysis

The following procedures outline steps you should follow when troubleshooting a Model 2616RC malfunction.

1.If possible, talk to the person who filed the trouble complaint and determine the operational symptoms. Record the symptoms on the appropriate trouble report form (include the front panel LED indications).

2.Refer to table 7 for LED definitions and compare the recorded results from the trouble report against those in the table, then refer to the section recommended in the table for the maintenance procedure that will repair the malfunction.

Table 7. LED definitions

LED

Location

Color

Status

Meaning

 

 

 

 

 

POWER

Front

Green

On

Power is being applied. No action recommended.

 

panel

 

solid

 

 

 

 

 

 

 

 

 

Flashing

The 2616RC has detected a power failure on a power bus. There

 

 

 

 

may be a problem with the Patton ForeFront chassis power sup-

 

 

 

 

ply system such as a failed power supply module in the chassis.

 

 

 

 

The Model 2616RC will function normally with one power sup-

 

 

 

 

ply. Inspect the power supplies in the Patton ForeFront chassis to

 

 

 

 

identify and replace the failed power supply module. If the

 

 

 

 

POWER LED continues flashing when all chassis power supplies

 

 

 

 

are functional, contact Patton Technical Support to determine if

 

 

 

 

the T-DAC should be replaced.

 

 

 

 

 

 

 

 

Off

No input power is being applied. Verify that at least one chas-

 

 

 

 

sis power supply module is installed in the chassis and func-

 

 

 

 

tioning normally.

CPU FAIL

Front

Red

On

CPU is unable to load the software from FLASH to RAM for

 

panel

 

solid

operation. As soon as possible, remove the Model 2616RC

 

 

 

 

from the Patton ForeFront chassis, wait 30 seconds, then re-

 

 

 

 

insert the Model 2616RC into the Patton ForeFront chassis and

 

 

 

 

see if the problem disappears. If the CPU FAIL LED remains lit

 

 

 

 

after the Model 2616RC completes the power-up cycle, contact

 

 

 

 

Patton Technical Support to determine if the T-DAC needs to be

 

 

 

 

replaced.

 

 

 

 

 

 

 

 

Off

The CPU is operating normally. No action recommended.

ALARM

Front

Red

On

A minor alarm condition has been detected.

 

panel

 

solid

 

 

 

 

Flash-

A major alarm condition has been detected.

 

 

 

ing

 

 

 

 

Off

The Model 2616RC is operating normally. No action rec-

 

 

 

 

ommended.

 

 

 

 

 

Fault analysis

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Patton electronic 2616RC user manual Fault analysis, Power