Thank you for the info, João!
This explains why this Schematic was not making sense to me, when I was trying to match up the components with our Version-2, 9x Mainboard Radio.
An update: about the 9x Mainboard that I smoked on Feb 14, 2014.
I still plan to continue to troubleshoot this smoked 9x Mainboard to see what may be still working on it.
I plan to use placement components form my 9XR mainboard that I have.
I will replace the 476J / 93H31 Capacitor (Tantalum) that is next to the 3.3V Regulator, with the Larger 476A / 96JT4 Capacitor from the 9XR Mainboard.
And for the very small brown, surface mount capacitor (which I have not been able to verify the values for it) I speculate the value to be 10uF.
I will choose one off of the 9XR Mainboard that looks like this very small brown, surface mount capacitor on the 9x mainboard.
I do not want to remove the one on the other 9x V2 Mainboard that I accidentally Fuse Brick over a year ago, as I believe this is a better 9x mainboard to do the CPU upgrade to.
If any one knows the value of this very small brown, surface mount capacitor and maybe also knows which very small brown, surface mount capacitor on the 9XR mainboard
that has the same value, I would appreciate you help.
Add Edit Update 1: I have the 5V Regulator installed with the replaced capacitors.
When reading the ohms values with the Multimeter Dial Selector set to 20K ohms, the 9x 3.3V Regulator on the Smoked 9x Mainboard is still reading 00.1 ohms,
it should be reading 3.2 ohms with the Multimeter Dial Selector set to 20K ohms.
The two outside legs of the good 3.3V Regulator reads no connection,
But the Smoked 9x Mainboard is reading 198.5 ohms.
It's not matching up between the good 9x Mainboard and the Smoked 9x Mainboard,
It looks to me that the Smoked 9x Mainboard 3.3V Regulator may be Smoked?
Add Edit 2: Here is what I have for readings with a good Stock V2 9x Radio Mainboard:
- 9x V2 stock Mainboard Voltage Circuit
Add Edit 3: Why dose the Stock V2 9x Radio: 3.3V Regulator, have the voltage values on the connection legs, in different places, then the 5V Regulator has ?
Would this AMS1117-3.3 Regulator (
http://www.alldatasheet.com/datasheet-p ... 7-3.3.html) work to replace the stock 3.3V Regulator ?
Bob.
Er9x on 9x radio, with Smartieparts Programmer and TelemetrEZ Board.
ErSky9x on Taranis, Sky9x, 9Xtreme radios.
3D-Printing: (https://openrcforums.com/forum/viewforum.php?f=129).