Code setting and modification of C series transmitter
The fixed code transmitter needs to be set by Soldering iron. Fixed code
transmitter usually use PT2262 or SC2262 encoding chip, we generally use 8-bit
address code and 4-digit date code. The total capacity of address code has 6561
group. The address code is set by pins 1 ~ 8 of PT2262 or SC2262. These 8 pins
can be set to three states: floating, grounding and connecting to the positive
power supply. These three states represent codes 0, 1 and 2, respectively. So
the address code consists of 0, 1 and 2, such as 00210210 or 12212001.
The setting and modification method of the address code is as follows:
Open the transmitter case and you will see the circuit board. There is a row of
chip pins (A0~ A8) on the back of the circuit board and two rows of pads. The
top one is marked "H" and the next one is marked "L", as shown in figure:
If the chip pin is soldered to the “L” end, it represents code 1. If the chip
pin is soldered to the "H" end, it represents code 2. If the chip pin is not
soldered, it represents code 0. This 8 - bit code is D1 D2 D3 D4 D5 D6 D7 D8 in
the right - to - left the order, as shown in figure:
If you want to set up the code 10021002, the welding method is as follows:
Do not weld the pin D2, D3, D6, D7. They stand for code 0.
Welding pins D1 and D 5 to "L", they represent code 1. 3. Welding pin D4 and D8
to "H" ends, and they represent code 2.
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