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For those cases there's a glass fibre eraser pen in my toolbox since long time ago.
It's suitable for many things like cleaning contact paths of the servo's linear pots
of Horizon's UM and UMX planes
or removing solder masks ...

Klaus

That's the problem. I do know about those things 'cause our flying site lies in the outer rim of a control zone. We have an agreement with the airport for over 40 years and have the order to watch for manned aircrafts in order to fly at a very low level as long as a manned aircraft crosses our site....

AFAIK the big ones (here in Germany) should fly over 2500 ft. In some areas (e.g. near big airports) they are allowed to fly lower. We (model pilots) are not allowed to fly nearer than 1,5 km to an airport (without control zone) without permission. Concerning an airport with control zone you mustn't...

The radio cannot "talk" to the Orange TX module at all (Orange module doesn't support that).
It (the PRO) only sends the PPM signal (which contains only servo positions) to the module.

Klaus

I never used it, too.

Klaus

Hi toto, first of all: the bug is to power the radio after powering the RX. ALWAYS power on the radio (TX) first. There are very little situations (e.g binding some TX/RX combintions) where this isn't so. In that cases it's a good idea to unplug engines ... Second: I can't tell you about v819 but th...

"ersky9xr_rom.bin" is the right choice for the PRO.

And there are no dumb questions. There can only be dumb answers.

Klaus

Hi,

you need to make a short between this small pads labeled with "R22".
Whether you can build a solder bridge or solder in a short wire doesn't matter.
It belongs to your skills ...

Klaus

I doubt whether these idiots will do a registation ...

And those who want to do evil things intentionally are not even itched peripherally by laws!

Klaus

Please have a look at AVRDUDESS

A really nice GUI for avrdude.

Klaus

Most important question:
May they (the gimbals) fit to the 9X?

Klaus

Buying a new one is the easier way ... But repairing the tracks could do the trick (if you are able to ;) ). No matter how you decide: Black wire to TX, white wire to RX of DHT. Concerning the two cut tracks on the 9X motherbord ... I think you can leave 'em alone. They are not necessary for 9XTreme...

... so you converted the telemetry signal back to RS232? ... Yes, I was not shure whether the level is 3.3V or 5V so the converter seemed to be the saver way ... When I look at Luke's picture it seems that not only the track is cut but also the via has gone... If the via is still present and OK the...

Hi João, I think it could be me ... I have a 2nd hand DHT from which the pre-owner removed the RS232 converter chip. I asked here whether this DHT could me hooked to COM2. But in the end I used something like this (I found it in my spare parts crate) to hook the DHT to COM1 (the black and white wire...

When you power on while holding the left horizontal trim outwards (to the left)
the hardware menu (and the EEProm menu (which is under construction))
will be enabled 'till next power off.

Edit: The EEPROM menu will give the option to save / restore the whole eeprom
content to/from SD card.

Klaus

What about placing the XJT on the back PCB like I did with a DHT:
Edit:
A picture of radios backside with bind button and LED:
Klaus

... Now comes the question: 9Xtreme gives options to configure frame length, polarity and delay for the 2nd protocol. Not so the Pro for ppm2. Is there a specific reason? ... ... I'll see about adding those options to the SKY board. Adding DSM on PPM2 is more difficult as the processor doesn't have...

A propos addons: I recently fitted up one of my PROs with 2 TX modules. Internally a Spektrum DSM module and in the module bay a FrSky DHT. For this I swapped the ppm line to the module bay and the ppm2 port ('cause the internal ppm2 doesn't support DSM (at least at the moment)). Also I connected CO...

Usually you connect the DHT via the red (+), black (-) and yellow (ppm) wires.
Then you only need TxD (black wire from 9XT) and RxD (white wire from 9XT) of the telemetry port.
5V and GND of the telemetry port have to be left alone.

Klaus

I know it's a bit confusing ... My comment was rather meant with an eye wink ... ;) (a problem of the written word as well as english not beeing my native tongue :oops: ) Some time ago I found a little converter board on which the silkscreen is more than clearly I think: WP_20151124_18_31_16_Pro (Gr...

I could never understand where this problem comes from ...
Or is there anybody who would connect the output of a mp3 player to the output of an amplifier?

Klaus

Phoenix 5.0 only works with the genuine USB cable (at least I found no other option).
Up to 4.x there exist some launching programms that can read a HID joystick
(and as a side effect make the dongle unnecessary )

Klaus

Works on both TXs!

Thank you Mike for your efforts.

Klaus

i have updated to ersky9x-r218 V.2927 15.11.2015

Mike, today I put the spektrum modules into a 9X just to make shure they work. And they do work. Any ideas what I can check besides connections between TX module and 12-pin connector? And another question concerning range test mode with DSM2/DSMX: When logical switch I is active every 10 seconds I h...

Hi Mike,

yes I did/do.
Trainer switch also seems to work according to "DiagSwitch" screen.

Klaus

Hi guys, I have installed my 2 9XTreme boards. After LCD problems on one 9X board both TXs now seem to work OK. :) FrSky DHT wired as internal module and spektrum DX5e hack module wired the usual way as external module (worked with 9X like a charm). JRModule.jpg FrSky/telemetry work properly but I'm...

Thank you Mike for your quick response.

Then I have indeed a problem somewhere around the LCD.
Both radios show exact the same reaction at startup except the LCD.
Backlight flashes red for very short time then turns to the color I have set in "Display" menu.

Klaus

It would be nice if the 9x board (with slave firmware) could display something like "9Xtreme board not recognized" when the 9Xtreme board is removed (just to display anything). Reason: I received my 2 boards today and tried to install both. One installation was successful. The second was n...

Seems to me like blue and grey are linked together?

Klaus