Connectivity Test for EES Logic Probe Project

Connectivity test

Week 12

Get ready the multi-meter

1. Turn the switch to measure ohm (x10)

2. Short the two probes to test that the multi-meter is working properly

3. Check that the needle will swing towards the right

Chip holder – test short circuit

1. One probe on pin 1 2. Another probe on copper side but at a distance

3. Confirm short circuit

4. Continue to pins 2 - 14

Chip holder – test open circuit 11. Place the two probes on adjacent tracks

2. Confirm open circuit

3. Repeat on the next two tracks

Chip holder – test open circuit 2

1. Place the two probes across the chip holder

2. Confirm open circuit

3. Repeat on the next two tracks

Wire – test short circuit

2. Check that the needle will swing towards the right

1. Place the two probes on the tracks with the wires

Wire – test open circuit

2. Confirm open circuit

1. Place the two probes on adjacent tracks next to the wire track

Visual check

Good: Solder on both sides of ALL pins

Good: No solder on the gut

Visual check

Can improve: Partially not cover with solder

Can improve: Solder on the gut

The End