Electronic System
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5.3.2 Slave Amplifier PCB(SST8.413.103A or SST8.413.104A)
Figure 5.20 Layout of UV-3802 Slave Amplifier PCB
The sockets description of the slave Amplifier PCB of UV-3802 as follow:
J1---From Power Distributing PCB
Pin 1: DC +9V
Pin 2: GND
Pin 3: DC -9V
J2---From Slave CPU PCB
Pin 1: GND
Pin 2: DC +5V
Pin 3, 4: Control amplifier multiple from Slave CPU PCB
The amplifier multiple of UV-3802 slave Amplifier PCB as follow:
Amplifier Pin 3 Pin 4
1 0 0
2 0 1
3 1 0
4 1 1
Note: 1. 0: Logic low (0V) 1: Logic high (+5V)