Electronic Engineering Schematics
Small Electronic Testing Tools
Utility of Testing and Troubleshooting Tools :
Then first thing in Electrical testing is the Continuity Tester,
Then we use the Neon Mains Screwdriver, Then we need an
Voltmeter or an Ammeter. In electronics we need a OhmMeter and
LCR meter too.
Many times we cannot carry big or
expensive test instruments to the field, so we have to have a
troubleshooting tool kit. Continuity testers, Logic Probes, DMM,
Clamp Meters etc..
Multi-Instrument Digital Assistant – PIC16F84A
It also is sometimes required to build a quick jig or fixture
with electronics to troubleshoot, simulate a problem or to test
the reliability or aging of components and systems.
Here you need to be cost effective,
fast and innovative; and build a simple system with available,
affordable or procurable resources. Hence a bit of circuit
design, firmware and software are essential skills for
You can troubleshoot and repair Electronic Equipment easily with
Meters and Continuity Testers.
Logic Probe Circuits
Digital Test and Measurement Starts with Logic Probe - Any point
in a Digital Circuit can be High, Low, Float means TriState. The
High Low in a 5V CMOS circuit is just 0V and 5V. In TTL and ECL
it is much different. The Test Point could also be Pulsing or
have analog values and waveforms, as in Mixed Signal Chips. Here
are Logic Probe Circuits you can Build in your own Home Lab.
20th Mar 2020