Lesson 3
PRACTICE EXERCISE
1.
Dirty heads may cause streaking and video noise.
What other problems
may they cause?
a.
Dropout, and poor picture
b.
Sticking tape, audio noise
c.
Gummy heads and screeching
d.
Blanking and burning odors
2.
What is the most effective way to clean heads?
a.
Cotton swabs and alcohol or freon
b.
Automatic cassette cleaner
c.
Soft cotton cloth and alcohol
d.
Abrasive cleaners
3.
What happens if heads are not demagnetized?
a.
Heads and guide become permanently magnetized after several hours
of operation
b.
Guides will become sticky
c.
The video heads will become magnetized
d.
Audio and video heads will burn
4.
The use of cleaning cassettes cause what problems to video heads on
VRs?
a.
None. Most manufacturers recommend the use of cassette cleaning
tapes for their equipment
b.
The heads on the VR will wear out faster
c.
Cassette cleaning tapes sometimes leave debris or residue after
use
d.
The heads will get too hot and create a smoky odor
5.
Video heads are cleaned in what direction?
a.
Vertically only to prevent damage to heads
b.
Horizontally across the heads
c.
In any direction as long as the residue is removed
d.
Perpendicular to the tape travel on the heads
6.
How should camera cables be stored?
a.
Kept free from dust and dirt
b.
Not rolled up with kinks or breaks
c.
Not allowed to be rolled
d.
Rolled up as tight as possible
45
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