A few tips for better lab work

Wiring up the circuit

1.      Test all components before use.

2.      Rig up the components on the bread board such a way that circuit set up looks like the circuit diagram.

3.      Use the top row of the bread board for V_cc and the bottom rows for GND or –V_cc.

4.      Use red wire for connecting  V_cc and black wire for GND.

5.      Use minimum length of wire for interconnections. Make use of a wire stripper.

6.      Use a nose plier to bend the component leads and insert them in the bread board.

Experiment

1. Switch on DC supply first and then check the relevant DC conditions if any.

2. Give the input signal only if the DC conditions are satisfactory.

3. Note down the relevant readings in the record clearly.

4. A complex circuit should never be wired completely in the beginning. Do it part  by part and test them.

5. Observe the input and output waveforms simultaneously on a CRO screen.

6. Sketch the waveforms in the record neatly with all details.

7. Switch off the input signal and then DC supply before changing any connections or components or when switching off.

Troubleshooting 

1. Instead of rewiring the circuit, try to identify the fault by checking the DC conditions and circuit components using multimeter or CRO.

2. Vary the component values and input voltage levels.

   
   

Coaching for All Electronics Lab Practicals: Pace electronics Lab.

Trivandrum, Ernakulum & Trichur.

Mini and Main Projects training.

Phone: 0484-2313911.