Motorola SSETM 5000 Transmitter Troubleshooting, Encryption Troubleshooting, Pl, Dpl, Mdc

8-4 Troubleshooting: Transmitter Troubleshooting

8.6Transmitter Troubleshooting

Table 8-5lists the possible causes of, and corrections for, transmitter problems.

Table 8-5. Transmitter Troubleshooting Chart

Symptom		Possible Cause	Correction or Test (Measurements
			Taken at Room Temperature)
No RF Power Out	1.	TX Power Level or Frequency	Check TX power level and frequency
			programming (from tuner)
	2.	No Injection To Power	Send radio to depot
	Amplifier
	3.	Antenna Switch/Connector
No Modulation;	1.	Programming	Check deviation and compensation
Distorted Modulation			settings using the tuner
	2.	VOCON Board	Send radio to depot
Bad Microphone Sensitivity	1.	Check Deviation and	Realign if necessary
	Compensation
	2.	Microphone	Send radio to depot
No/Low signaling	1.	Programming	Check programming
(PL, DPL, MDC)
	2.	VOCON Board	Send radio to depot
Cannot Set Deviation	RF Board		Send radio to depot
Balance

8.7Encryption Troubleshooting

Table 8-6lists the possible causes of, and corrections for, encryption problems.

Table 8-6. Encryption Troubleshooting Chart

Symptom		Possible Cause	Corrective Action
No “KEYLOAD” on Radio Display When	1. Defective Keyload Cable		Send radio to depot
Keyloading Cable is Attached to the Radio
	2.	Defective Radio
Side Connector
Keyloader Displays “KEY LOAD FAILURE!”	1. Wrong Keyloader Type		Use correct keyloader
			type. Refer to Keyloader
			User Guide for more
			information
	2.	Bad Keyloader	Try another keyloader
	3.	Defective Radio	Send radio to depot

November 11, 2004 6881094C12-A