User manual

A&D Board User Manual and Test Procedure

Logic Probes

1. [ ] Set the LOGIC PROBE switch to ON.

2. [ ] Make sure all Logic Probe LEDs are lit. Note: When a logic indicator has no input it is in an

indeterminate state and the color of its LED could be red, green, or flickering. For fun, run your finger over

the tops of the Logic Probe inputs.

3. [ ] Connect a wire between the +5V socket connector and logic probe 1 (LP1). The LP1 LED should be lit

red indicating a logic HI or ‘1’. Ignore the color of LEDs LP2 – LP16 as they are in an indeterminate state.

4. [ ] Repeat step 3 for each of the other logic probes (LP2 – LP16).

5. [ ] Move the wire to connect GND to LP1. The LED should be lit green indicating logic low or ‘0’. Again

ignore the other LEDs.

6. [ ] Repeat step 5 for each of the logic probes (LP2 – LP16).

Logic Switches

1. [ ] Set all of the switches to the HI (or OFF) position.

2. [ ] Connect a wire between switch 1 (S1) and LP1. The LED should be lit red.

3. [ ] Set the switch to the LO position. The LED should be lit green.

4. [ ] Read footnote 3.Toggle the switch to be sure the LED changes between red (HI) and green (LO).

5. [ ] Repeat steps 2-4 for the remaining 15 switches (S2 – S16).

Pulsers

1. [ ] Connect a wire between any socket in the top two rows (represented by the down arrow) of Pulser A

(PA) and LP1. The LED should be lit red.

2. [ ] Press down on PA. The LED should go from red (HI) to green (LO).

3. [ ] Move the wire to connect any socket in the bottom two rows (represented by the up arrow) of PA and

LP1. The LED should be lit green.

4. [ ] Press down on PA. The LED should go from green (LO) to red (HI).

5. [ ] Repeat steps 1-4 for Pulser B (PB).

(Note: Do not use a graphite pencil to move switches as graphite flakes may enter the switch with continued use

and thus short the switch. A PDA stylus or a mechanical pencil with the lead retracted is acceptable.)