Download Sm Wouxun KG689VHF

QUANZHOU WOUXUN ELECTRONICS CO., LTD
Model: KG-689
xun
Circuit Description
7. Battery save circuit
One receive state the squelch turn off, if not press any key within 5 second, the power circuit will enter save
state mode, This control circuit through CPU directly control.
2
wou
D
CH+
U1
S8232B
1
2
3
4
C
Sens
Do
Co
VM
8
7
6
5
Vcc
Vc
ICT
Vss
D1
R5
1K
C8
224P
R8
1K
C9
C6
224P 224P
R3
1K
Version: KG-689-0801-V1
4
8
81
C5
254P
C4
102P
1
3
2
3
2
C
B-
T1A
S8212
wou
2
6
7
T1B
S8212
BC
3
B
A
4
wou
xun
wou
1
xun
A
5
6
7
CHB
5
R4
4.7M
4
TEMP
DIO-1
D
B+
R2
1K
C1
224P
4
3
xun
1
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