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It Has to be R9 , these can burn out faster than you can blink a eye

R9 is a 0.1 Ohm current shunt ...to measure battery current , it will blow open in a short condition.
R9 is what you have shorted out.

Hi Revisit the link I gave you...there is a new drawing. R9 is a 0.1 Ohm current shunt ...to measure battery current , it will blow open in a short condition. There is a PMOSFET that shorts out the power switch , for soft power function. Look at the Sky9x board posts for a idea on the circuit diagra...

Refer to this diagram:
viewtopic.php?f=122&t=5659#p80407

There are spots labeled on the Main PCB near the 5V switching regulator pcb
as 0V , 5V , 3.3V
Are these at the correct voltage?
Does it work with the RF Module removed?

-Brent

Why not just just pull the wire from pin 1 on the LCD connector J15 and connect it to Pin 10 of J6
This will run the LEDs at the battery input voltage.

The Pro board was designed using the stock 9XR hardware..they both use the same LCD , as far as I know.
The Backlight may have been changed , if there is a colour / brightness difference .

The only way to tell , is to swap the LCD/backlight with your old 9XR , and see ...

-Brent

Thanks Mike , I removed the bad diagram.

the change was NOT intentional

drawings fixed

FYI
I have updated the wiring diagrams
viewtopic.php?f=122&t=5659
-Brent

FYI
I have updated the wiring diagrams
viewtopic.php?f=122&t=5659
-Brent

The ERASE signal is available at the SD-CARD pcb connection , left most, bottom corner solder connection on 14 pin header. (pin14)
It would be easy to tack a wire on here.

The audio disable may still be needed for EZUHF users....we will know soon enough?

Email HobbyPartz they have parted out 9x's before . and sold the parts.

No , the voltage levels are different between the two configurations.
Thats why I asked Mike

Any Pot has a 3.3V connection

Most people will not have the Resistor ...but they have wire....

Mike:
If the new 3 way switch is wired with 3.3V , signal , Gnd will it read correctly ?
I think for most people adding the 3rd wire is easier than adding a 1K resistor.

-Brent

yes , but higher cost , and need some code mods to work.

The ARM chip would have to be changed to a SAM4S , for more RAM.

Is it possible to use the OpenTX USB joystick code with the Pro? ...I think it would be a great feature to have....

I think that if you open up the 4 mounting holes on the PCB a bit a and re position the board , the buttons should work.
A slight mis-alignment can cause things like this.

i have the 2.2K resistor on the wrong side of the switch
It should be like this .... (I have shown the bias resistors in the drawing they are already in the circuit.
-Brent

Brent, could you please have a look at the 6 position switch on your wiring diagram? Is it a 5 position switch? then there is a pin not connected? or it is like that because there wasn't enough space to put one more resistor? João The A/D input on this pin is biased at 1/2 VCC by two 2.2K resistors...

Thanks Brent! Are pins 5 and 2 in the module bay pre-wired to serial rxd/txd? From this diagram it looks like pin 5 might be but pin 2 is NC? Pin 5 is wired to COM1 bi-directional serial port. Pin 2 is open . If you want to connect COM2 for internal use , then you need to remove the Pin2 wire (COM1...

Here is the link to the wiring diagram
viewtopic.php?f=122&t=5659

-Brent

Here is the wiring diagram of the Pro. It also shows where to connect things like a Rotary encoder, Bluetooth module , and extra switches.... Edit by MikeB: The wiring for the 6-pos switch is incorrect, see 9 posts down for the correct wiring. 9XR_Pro_wire_1_1.JPG This shows some common modification...

I am working on a full drawing ...It will be ready real soon

The 9XR Pro was released today. http://www.hobbyking.com/hobbyking/stor ... duct=51442

These look cool
http://ca-en.alliedelec.com/redpitaya/

I have nothing to gain at this point , I have been paid for my work on the project.