MikeB wrote:I assume there are no switches actually showing as in error, just the "switch error" message showing and you can't clear it.
The way the code works, is to display the "switch error" message, then check the switches. If the switches are OK, the formware carries on, but doesn't clear the display.
The firmware then waits for all the 6 buttons to be "not pressed". I suspect one of the button inputs is being detected as "pressed".
The most likely one is MENU, as this is on the programming SCK signal, but it could be any one of the six.
Use a meter and check the voltages on each side of the 6 switches, one side should be ground, the other at around 5V. If both sides are ground, that is the switch connection causing the problem. It may be the switch, if you have removed and replaced the main board from the case, sometimes the switches don't properly line up. It may be some extra connection, like SCK, on the switch conenction.
Morning... or afternoon...
Alright, I have done an exhaustive amount of testing.. pulled out the schematics... I have tested all the lines from the switches...
To be clear, there is the original firmware on the radio, I wasn't sure if I had to upgrade before I did the telemetry mod. (don't think so?)
On the FS-TH9-BACK
1)Orange/Brown wires close the THR CUT circuit for continuity.
2)Orange/Brown wires close the TRN MON circuit for continuity.
On the AUX Switch Harness
1)Violet/Orange wires close for Aux#3(Mix) circuit for continuity.
2)Violet/Green wires close for AIL D/R circuit for continuity.
3)Violet/Red wires close for GEAR circuit for continuity.
4)Violet/Orange wires close for RUD D/R circuit for continuity.
5)Violet/Yellow wires close for ELE D/R circuit for continuity.
The Buttons all click, none of them are pressed in... on the Main PCB.
Does this sound right?