Key Topic 30: Video Amplifiers and Sweep Circuits

Question 1

8-30D1: What are the usual input signals to the video amplifier?

A. Low level video.
B. Fixed range rings.
C. Variable range rings.
D. All of the above.

Answer 1

D. All of the above.

Question 2

8-30D2: Which of the following would not normally be an input to the video amplifier?

A. fixed range rings.
B. Variable range rings.
C. Resolver signal.
D. Low level video.

Answer 2

C. Resolver signal.

Question 3

8-30D3: The purpose of the sweep amplifier is to:

A. Increase the power of the video amplifier.
B. Drive the CRT deflection coils.
C. Drive the resolver coils.
D. All of the above.

Answer 3

B. Drive the CRT deflection coils.

Question 4

8-30D4: How many deflection coils are driven by the sweep amplifier?

A. 4
B. 3
C. 2
D. 1

Answer 4

C. 2

Question 5

8-30D5: The main purpose of the sweep generator is to provide:

A. Antenna information.
B. Range rings.
C. Composite video to the cathode of the CRT.
D. The drive signal to the sweep amplifier.

Answer 5

D. The drive signal to the sweep amplifier.

Question 6

8-30D6: The main purpose of the video amplifier is to provide:

A. Composite video to the cathode of the CRT.
B. Resolver signals.
C. Antenna X and Y signals.
D. Provide the drive signal to the seep amplifier.

Answer 6

A. Composite video to the cathode of the CRT.