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A-M99
5.
INTERIOR
BLOCK DIAGRAM OF
1C
•M5218L
(Audio
PRE
Amp.
1C)
•TA7317P
(Protector
1C)
Ibc
Bias(+)
I
Delaying
Circuit
•STK3082-2A
(Voltage Amplifier
1C)
•LC7815H Analog
Function Switch
1C
Output
1
fAi
Input
Terminal
Control
Terminal
RESET
MUTE
in
CR
VpD
Vss
Vee
/j3D
Vs
—
o
—
o—
^
!
1
r
L_
1
III
LL6
LS^
:£l
Mute
Control
Circuit
Vee
Output 2
A2I
Input
Terminal
TM
out
LED
Drive
Terminal
B
C
D
MUTE
•LC4066BH
Quad
Bilateral
Switch 1C
f
IN/OUT
I
I
OUT/IN
I
OUT/IN
I
IN/OUT
B
CONT
C
CONT
|swD^
r ^
3
Vdd
H
CONT
A
CONT
D
3
IN/OUT
]
U
OUT/IN
I
3
OUT/IN
I
g
IN/OUT
I
IN/OUT
1.4. 8,
n
Control
-
13,
5,6, 12
OUT/IN
—
*LC7815H
Condition
of control
input terminals
Port
(Pin
No.)
Connected
input
terminal
to
output
1
and 2
terminals
Connected
terminal
to
LED
Indicator
Ain
Bin
Cin
Din
PORT
PORT
PORT
(2)
(3)
(4)
(5)
(Pin
No.)
(Pin
No.)
(Pin
No.)
H
*
*
*
A1
(10)
A2
(19)
A
(27)
L
H
•
*
Bl
(11)
B2
(18)
B
(28)
L
L
H
*
Cl
(12)
C2
(17)
C
(25)
L
L
L
H
D1
(13)
D2
(16)
D
(24)
H:
H
level
L:
L
level
*:
Don't care
10
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