RFD-1
6
A
B
C
D
1
2
3
4
1
2
3
4
V+5V
V-5V
V+5V
V+5V
V+5V
V+5V
V+5V
GND
7
4
70mVp-p
• AC MODE
-
+
-
+
4
-
+
-
+
B.P.F
X1
V+5V
GND
GND
GND
GND GND
GND
GND
GND
GND
GND GND
GND
GND
GND
GND
1 2 3
AC-3
RF IN
ALC
IC7 (1/4,2/4) :
TC74HC08AF
IC3 (1/2) :
MC14577CF
Q1
2SC2412K
Q5
2SC2412K
Q4
2SC2412K
Q2
2SC2412K
Q3
2SA1037K
Q6
2SA1037K
IC3 (2/2) :
MC14577CF
IC4 (1/2) :
BA4560F
IC4 (2/2) :
BA4560F
CN1
JA3
COAXIAL IN
JA2
OPTICAL IN
D203-D206
POWER
TRANSFORMER
S1
FU1
VTT1153
LM2940CT-5.0
IC200
IC201
NJM79L05
V+5V
V-5V
VCXO
18.432MHz
6
4
5
1
2
3
1
2
IC5 (1/6,2/6) :
TC74HCU04AF
1
2
3
4
14
2
3
1
8
6
5
7
2
3
1
8
6
5
7
1
2
1
2
AC220 - 230V
A
DEM ASSY
C
SW ASSY
CN2
CN3 CN4
: RF Signal Route
3. BLOCK DIAGRAM and SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM