untitled

Receiver battery TB

to input pin of VR1

Buzzer TB

to collector pin of Q1

Pin 16 of Relay 4

to collector pin of Q5

Left sensor TB

to base of Q5

Pin 16 of Relay 3

to collector pin of Q4

Right sensor TB to base of Q4

Pin 4

of Relay 1

to Pin 8

of Relay 2

Pin 4

of Relay 2

to Pin 1

of IC 3

Pin 3 of IC 2

to Pin 8

of Relay 1

Figure 13-23:
Hook up the
IC, terminal
blocks,
relays, and
discrete
components.

Chapter 13: Sensitive Sam Walks the Line 327