仅供参考。玩机很快乐,改机有风险。
Locate a set of etched jumpers on the pc board. They are located adjacent to the bend in the ribbon cable. They are not marked, and are situated as follows (o-o indicates closed, o o indicates open):
JP1001 o-o
o o JP1005
JP1002 o o
o o JP1006
JP1003 o o
o-o JP1007
JP1004 o-o
Using solder wick or your preferred method of solder-removal, carefully remove the jumper for JP1007. This enables the 134-174, 420-470 MHz transmit.