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2.
Action when
switched from
Fast Forward
( >>)
or Rewind (<4) to Forward (>). (Refer to Fig. 2)
@® Action of 1C701
TC-766-2
Q748 is negative-biased by the output from FG,
so that it is in the OFF condition, B+ voltage is
applied
to terminal @)and there is no output
from terminal@)(Path @)).
The revolution of the supply reel motor quickly
slows down and stops.
When this happens, the
revolving
at
high
speed,
it does
not
stop
immediately and there is an output from FG.
from
terminal @) until again switching to fast
forward or rewind.)
al
eae
|
(Fs) Linkaged with supply
reel motor.
Fig. 2
(There
is a regulator
in the audio
amplifier
section.) °
3.
Power Supply Section (Refer to Fig. 3)
The power supply section consists of the follow-
ing four kinds of circuits.
1.
Power
supply
(12V)
for lamps,
IC701,
and
solenoid hold.
3.
Regulated
power
supply
(24V:
adjustment
required)
for headphone
amplifier, bias oscil-
lator, and system control section.
4.
Power supply for solenoid initial-energization.
0707
Lamp, 1C701
Solenoid Hold
Record and Playback Amplifiers 24V
Headphone Amplifier
24V
Bias Osc,
System control
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