Hi friends,
i have this device,it is actually fullHD video transmitting system with 1ms latency,specialy made for big drones. I have problem with receiver,first i replaced one 0ohm resistor-this resistor was blown(the same problem was on another unit before when someone plugged reversed polarity in),now if i plug power in and switch on,nothing happens,no LED light,nothing.it takes arround 250mA from power source,what is too low,correctly it should take arround 1A and more. I meassured some voltages,there are markings on the board and i fount that on 5V line is arround 4,4V only. I found also regulator which generate this voltage but cannot find type or datasheet for this chip and meassure more.
Know this chip someone? Thanks in advance.
i have this device,it is actually fullHD video transmitting system with 1ms latency,specialy made for big drones. I have problem with receiver,first i replaced one 0ohm resistor-this resistor was blown(the same problem was on another unit before when someone plugged reversed polarity in),now if i plug power in and switch on,nothing happens,no LED light,nothing.it takes arround 250mA from power source,what is too low,correctly it should take arround 1A and more. I meassured some voltages,there are markings on the board and i fount that on 5V line is arround 4,4V only. I found also regulator which generate this voltage but cannot find type or datasheet for this chip and meassure more.
Know this chip someone? Thanks in advance.
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