WORKING OF RF SECTION IN CRT TV AND ITS CIRCUIT DIAGRAM
RF Section
Tuner Tu101 receive the radio frequency signal, after inside
circuit to do
signal receiving, and signal amplifying. The amplified high
frequency
signal accompany with the high frequency oscillation voltage
oscillated
by set oscillator input to the mixer. The IF picture signal
and sound signal
formed in mixer and output from mixer, then send to picture
IF
processing circuit.
some time the a/s pin connected to 5 volt positive, sometine connected to GND. what is the reason?
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