Motorola EP450 service manual Performance Checks, General, Power-Up Self Test

Chapter 4 Performance Checks

4.1General

These radios meet published specifications through their manufacturing process by utilizing high- accuracy laboratory-quality test equipment. The recommended field service equipment is as accurate as the manufacturing equipment with few exceptions. This accuracy must be maintained in compliance with the manufacturer’s recommended calibration schedule.

	30 dB Pad	Service Monitor or
		Counter
	Transmit
Power Cable	30 dB Pad	Wattmeter
RLN5410	BNC
	RF Generator
	Receive

		RF Adaptor
Power	Radio	5886564Z01
Supply			Audio In	Tx
					Audio Generator

Battery	Test Box
	RLN4460	Rx
Eliminator			Sinad Meter
	Program/Test Cable
	AAPMKN4004		AC Voltmeter
		Tx Data
	RIB	Rx
	RLN4008	Data
		Gnd

Computer Interface

Cable

RIB Power Supply

Figure 4-1. Radio Tuning Setup

4.2Power-Up Self Test

Applying power to the radio by using the on/off volume control, starts a self-test routine which checks the RAM, EEPROM hardware and EEPROM checksum. Pressing and holding SB1 while turning on the radio causes the self-test routine to check for the ROM checksum as well. If these checks are successfully completed, the radio will generate the Self-Test Pass Tone. If the self-test is not successful, a Self-Test Fail Tone is heard.