Midland Radio SP-300 - Manual (Page 43)

MAXON
SP-300 HAND HELD
Page -40-
May 2001
PIN DESCRIPTION
1
BASE DIAGRAM
Input
GND 2
3 Vcc (Pre Drive)
Vcc Control (Drive) 4
5 Vcc (Final)
Output 6
7 GND
No Description
6 Output
GND 5
4 B (4V)
2 GND
Input 1
+
Gnd 7
6 TX Out
Gnd 5
4 RX Vcc
Gnd 3
2 RX Out
Gnd 1
8 TX Vcc
1 Modulation
GND 2
Out 3
4 Vcc (5V)
RX/TX VCO
RX Front-End
GND
1
2
4
5
6
RF Power Amp
(VHF) P.A. Assy. P/N: 650-230-0012
(UHF) P.A. Assy. P/N: 650-230-0013
(VHF) Front-End Assy. P/N: 650-110-0012
(UHF) Front-End Assy. P/N: 650-110-0013
(VHF) V.C.O. Assy. P/N: 650-030-0021
(UHF) V.C.O. Assy. P/N: 650-030-0020
12.8 MHz TCXO
4
3
2
1
(VHF ONLY) TCXO Assy. P/N: 650-100-0002
7
6
5
4
3
2
1
GND
GND
15
14
13
12
11
10
9
16
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
8
Tuning
Gnd
TX Mod
Gnd
Gnd
Gnd
Gnd
Gnd
18
17
Gnd
Gnd
TOP SIDE
18 17 16 15 14 13 12 11 10
9 8 7 6 5 4 3 2 1
R309