Ic Block Diagram - Aiwa NSX-TR77 Service Manual

IC BLOCK DIAGRAM -1/1

Q Q
3 7 6 3 1 5 1 5 0
IC, BU2092F
1
2
3
LOGIC
4
5
6
7
8
9
T E
L 1 3 9 4 2 2 9 6 5 1 3
IC, LC72131D-N
1
REFERENCE
DIVIDER
22
SWALLOW COUNTER
16 1/2
1/16, 1/17 4bits
12bits PROGRAMMABLE
15
DIVIDER
3
2
4
C B
DATA SHIFT REGISTER
I/F
LATCH
5
6
POWER
17
ON
RESET
21
7 8 9 10 11 13
w w w
IC, BA3835F
BIAS
BIASC 1
18
Vref
VREFC 2
17
REFERENCE CURRENT
RREF 3
16
N. C. 4
15
105Hz PEAK
BPF HOLD
RES
A-C
14 5
DIFOUT
PEAK
340Hz
HOLD
BPF
RES
13 PEAK
1kHz
N. C. 6
HOLD
BPF
RES
3.4kHz PEAK
12
BPF HOLD
C
DIF
CIN 7
RES
10.5kHz PEAK
BPF HOLD
11
A
AIN RES
8
10
Vcc 9
IC, LA1845N-A
24 23 22
AM
18
PHASE DETECTOR ALC
OSC
CHARGE PUMP
BUFF
UNLOCK
19
CETECTOR
20
LEVEL
DET
S-CURVE
FM FM
IF DET
UNIVERSAL
12
COUNTER
REG
1 2
x a o
y
. i
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IC, BU2099FV
18 GND Vss 1
N.C. 2
17 AOUT
DATA 3
16 TEST
CLOCK 4
15 N. C.
L. P. F
LCK
5
14 SEL
Q0 6
MPX
13 N. C.
Q1 7
12 C
Q2 8
11
B
Q3 9
10 A
Q Q
DEC
3 7 6
Q4 10
21 20
19 18 17
AM AM
MIX RF. AMP
AGC
AM AM
IF DET
AM/
FM
COMP
IF
BUFF
TUNING
DRIVE
GND
3 4 5 6 7 8
u 1 6 3
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8 9 2 4 9
IC, M61518FP
20 V
DD
19
OE
18 SO
CONTROL
CIRCUIT
17
Q11
16 Q10
15 Q9
14 Q8
13
Q7
12 Q6
3 1 5 1 5 0 8 9
11 Q5
16 15 14 13
DECODER
PILOT
ANT-BIRDIE
CANCEL
P-DET STEREO
SW
ø
π
VCO FF FF FF PILOT
304kHz 38k 19k 2 19k 0
DET
VCC
9 10 11 12
m
c o
.
8 2 9 9
2 4 9 8 2 9 9