Alinco DX-SR9 E, Service Manual

Page: 14 / 66

14
1. OUTPUT
2. COMMON
3. INPUT
1 2 3
10) TC74HC74AF (XA0459)
Dual D-type Flip Flop
11) NJM3357M (XA0742)
Low Powe FM IC
12) NJM7805FA (XA0812)
5V Voltage Regulator
Pin Assignment
1CLR 1
1D 2
1CK 3
1PR 4
1Q 5
1Q 6
GND 7
14 V
CC
13 2CLR
12 2D
11 2CK
10 2PR
9 2Q
8 2Q
Q Q
CK D
Q Q
CK D
1
Oscillator
Mixer
Squelch Trigger
with Hysteresis
Limiter Amp
Demodulator
Active
Filter
Amp
2
3
4
5
6
7
8
16
15
14
13
12
11
2V
10
9
13) UPC2710TB (XA0968)
Wide Band Amp
14) NJM2594V (XA0995)
Balanced Mixer
15) TC74HC390AF (XA1001)
CMOS Dual Decade Counter
PIN
1
2
3
4
5
6
Pin Name
INPUT
GND
GND
OUTPUT
GND
V
CC
2
1
3
5
6
4
C1F
1CKA 1
1CLR 2
1QA 3
1CKB 4
1QB 5
1QC 6
1QD 7
GND 8
16 V
CC
15 2CKA
14 2CLR
13 2QA
12 2CKB
11 2QB
10 2QC
9 2QD
8
NC
7 6 5
1 2
OUTPUT1
3
OUTPUT2
4
GND
CARRIER
INPUT BYPASS
SIGNAL
INPUT
CKA QA
1.15 BINARY
COUNTER
QUINARY
COUNTER
3.13
CLR
2.14
CKB QC
4.12
6.10
QD
7.9
QB
3.13
V
CC
=16, GND=8