Patton electronic 2616RC user manual Fault analysis, Power

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.

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