Motorola EP350 Basic Service Manual

Troubleshooting Tables: Troubleshooting Table for Transmitter 8-3
8.3 Troubleshooting Table for Transmitter
Table 8-20. lists the possible causes of, and corrections for, transmitter problems.
Symptom Possible Causes
Corrective or Test
(Measurements 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
Amplifier
Send radio to nearest Motorola Service Centre.
3. Antenna Switch/
Connector
No Modulation 1. Programming Check deviation and compensation settings using the
tuner.
2. Transceiver Board Send radio to nearest Motorola Service Centre.
Bad Microphone Sensitivity 1. Check Deviation and
Compensation
Realign if necessary.
2. Microphone Send radio to nearest Motorola Service Centre.
No/Low Signaling (PL, DPL,
MDC)
1. Programming Check programming.
2. Transceiver Board Send radio to nearest Motorola Service Centre.

Motorola EP350 Specifications

General

Channel Capacity	16 channels
IP Rating	IP54
Drop Resistance	1.2 meters
Frequency Range	VHF: 136-174 MHz, UHF: 403-470 MHz
Battery Life	Up to 11 hours
Power Supply	7.5 V (Nominal)
Waterproof	Splashproof
Dimensions	127.6 x 62 x 42 mm (with standard battery)