Q.1

A +5 V PCB power source that has been "pulled down" to a +3.4 V level may be due to:

  • a circuit open
  • a faulty regulator
  • the half-split method
  • a circuit short
Q.2

Erratic or unexplained digital circuit activity is often due to _________.

  • a glitch
  • a random pulse
  • clock frequency changes
  • a change in slew rate
Q.3

Measurement of pulse width should be taken at a 50% mean of the:

  • overshoot and undershoot
  • rise and fall
  • damping and ringing
  • leading and trailing amplitude
Q.4

The device that would best aid in open track detection is a(n) ________.

  • multimeter
  • current tracer
  • logic probe
  • oscilloscope
Q.5

A check of all power supply voltages should be made during the ________ method of troubleshooting.

  • half-split
  • diagnosis
  • repair
  • final test
0 h : 0 m : 1 s