Kenwood TK-2207 Service Manual page 19

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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.
CIRCUIT DESCRIPTION /
Channel selector
50
EN1
49
EN2
48
EN3
47
EN4
46
EN5
Fig. 11 Control system / 图 11 控制系统
电路说明
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。
27
PTT
PTT
SW
IC405
CPU
74
SIDE 1
SW1
75
SIDE 2
SW2
TK-2207
19

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