Recommended Test Equipment; Standard Servicing Equipment - Decatur Electronics SI-2 Technical Manual

System interface

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Table Of Contents

Table of Contents

The list is not an endorsement to purchase from the listed companies. Keep in mind that equipment models

change periodically, therefore the model numbers for the listed equipment may no longer be available

(contact the manufacturer.)

STANDARD SERVICING EQUIPMENT

Instrument

1. Digital Multimeter (DMM)

Any good DMM is acceptable. A diode test and ohm capability test are also necessary.

2. Oscilloscope

In some cases, you need to monitor the "reset" and "strobe" pulses of various lines inside the older model

radar units. For newer models, it is sometimes necessary to monitor the signals coming from the micropro-

cessor. Some of these areas require at least a 60MHz resolution to properly monitor. Also, when working

with the Genesis model radar units, Decatur Electronics highly recommends using oscilloscopes with dual

trace capability and a storage feature.

3. Audio Signal Generators

You need to use an audio signal generators to simulate the target speeds for bench servicing. Because

many of the alignment procedures involve setting the generator at a specified number of decibels from each

other, metered generators or generators that have a displayed dB setting are preferred. Also, you can use

generators that read out in either peak to peak or RMS, but you need to calculate the voltage to dB

conversion.