Model
182C
Theory
4-74. Diodes A5CR9/A5CR10 and A5CK4/A5CR5 limit
the output to the
deflection plates
to
prevent overdriving.
Diodes A5CR8 and A5CR3
ptevetU
A5Q5
and A5Q7,
respectively,
from
saturating.
4-75. Depressing the FIND BEAM control
disables diode
limiter
A5CR4/A5CR5 and
blocks the signal to A5Q8.
The differential gain is
effectively cut in
half,
and
the
horizontal deflection
of
the beam
is confined to the limits
of the CRT.
4-76. POWER
SUPPLY DECOUPLING.
4-77.
Decoupling networks are
used on
each etched
cir-
cuit assembly for
the
supply voltages.
The use
of
decoupling i$ important
to
prevent extraneous
signals or
noise from being introduced into circuitry from the
power
supplies
or supply leads. Decoupling also prevents
transients originating in other circuits from being intro-
duced.
4-7
To Next Page
Loading...
