TK-2207
19
CIRCUIT DESCRIPTION /
电路说明
Fig. 11 Control system /
图 11 控制系统
7. Control System
Keys and channel selector circuit.
The signal from the keys and channel selector are directly
input to the microprocessor, as shown in fig. 11.
7 . 控制系统
按键和频道选择器电路。
如图11所示,来自按键和频道选择器的信号直接输入到微处
理器。
Channel selector
CPU
IC405
SIDE 2
EN4
EN3
EN2
EN1
47
48
49
50
PTT
PTT
SW
SIDE 1
27
74
75
SW1
SW2
EN5
46