Help soldering a spektrum 4649t

Chrome Dome

New Member
I am having trouble soldering a spektrum 4649t serial rd to a sp racing f3 deluxe fc. I have it all wired to uart3 but the rx will not power up. This rx requires 5volts. Is uart3 5volts? I do not have a multimeter to test


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DroneTalk

R/C Expert
Staff member
It's nearly impossible to do any work on a PC board without a multimeter , double checking is always best don't with the right tools, sometimes the obvious answers is the right only one. But a pic might help.
 

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