Pin
Name
Voltage and
Peripheral circuit of pins
Description of function
No.
wave Information
EXT
1
AUDIO
3.25V
IN
SOUND
2
DET
2.5V
COIL
SOUND
3.75V
3
DET
(Varying with
OUT
coil position)
4
AF OUT
4.2V
The Input impedance is
18k
Ω
. Add a blas to out-
side as shown right for
use.
The EM detector is a
quadrature detector and
externally connects a
tank coll or discrimina-
tor.
This is also used as an
AV switching pin to
apply voltage through a
10k
Ω
.
GND to EXT(Y-DL)
OPEN to TV(Y-DL)
Vcc(5V) to TV(S input)
Sound direct output pin.
for de-emphasis, con-
nect a capacitor
between this pin and
GND.
Sound putput pin
through ATT.
69
9V
4.5V
4.7k
3.9k
18k
2k
2.4k
2.4k
25k
10k
10k
10k
25k
30p
5p
20p
10k
0.01
9V
µF
4.5V
18k
2k
2.4k
2.4k
5.0V
9k
23k
2. DESCRIPTION OF PIN
