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Oh I see. Thanks for the info. But not sure why removing SD card effected the RTC.

Update: I first tried to remove the main battery and RTC battery and re inserted both batteries but it didn't change anything and was having the same issue. I remember I was having some message related to SD version not matching a while ago. So I thought to remove the SD card and powered it up and s...

Hi all, I am having a little issue with my QX7. Its not keeping the time anymore after power shutdown. RTC battery is right on 3v. I opened it up and couldn't find anything obvious. Is there any eeprom chip that saves all the info or its the main processor that keeps the time info? Any suggestions p...

Thanks 3djc for the info.I will try as you suggested.

Hi all, I would like to use the 2 extra switches on my older QX7.I have wired the switches to the empty connectors.

My radio is acct and please suggest me what version I should install to get the extra switch capability. Can I just install the latest one?
Please guide.Thanks.

Hi all, I found that while pressing the power button on x10s,the LED doesn't turns green like LED on my Qx7 lits green. But it turns blue while the Tx is on and turns Red if there is any warning like switch warning. So my question is : Does LED on X10s turns green(same like x7) if power button is pr...

Thanks guys for the info!

Hi, I just bought used "Horus X10S" on ebay and in a doubt after seeing external charger module.Is it actually X10S or the guy has sold me X10 in a X10S body?I believe X10S has a inbuilt charging module.Please have a look.Otherwise i will start claim on ebay immediately.Thanks https://stat...

Hi all, I want to tap into the trainer signal for head tracker.My head tracker uses 3 wires.Vin(upto 12v),Gnd and signal.Ideally i should be using one mono plug for signal and V+ and Gnd on different connector.But I would like to use just one 3 pin connector if possible. I noticed on the trainer jac...

bob195558 wrote: ↑Wed Jan 23, 2019 7:21 pm Good job done !

Here is where/when I replaced my first (ATMEGA2561-16AU) chip: (https://openrcforums.com/forum/viewtopi ... 120#p74105).

Thanks bob.

Your soldering looks good!! Did you use solder paste?

Thanks Mike.

Guys Success!! Thanks for the help and encouragement!!My radio is alive now:) I used chip quick and hot air to remove the processor from the board.I tell you that pads on this board are very fragile.Even thou i made sure that chip was freely moving before i picked it up,somehow i lifted one trace on...

Thanks Mike and kilrah.Going to order the processor chip.
One more thing I noticed that insertion of trainer plug,breaks one connection on the jack.Does it indicates the processor that plug is inserted??
And what type of plug we suppose to be using?I mean stereo 3 pin or 2pin mono?

Okay then i am gonna try and take a chance.

Existing processor says STM32F205 VET6 but only STM32F205 VET7 is available at my store.Will it be compatible?and what about boot-loader and stuff?can it just be programmed again by connecting via USB?

Hi Mike,
Do you think it's worth trying changing the processor if there is no special programing involved?I got hot air station, hakko fine soldering iron and a chip quick.If I replace the processor, will I be able to load the opentx firmware via USB? Thanks.

Thanks MikeB for your reply.

I just checked SD card and its working.So I will order the main board then.Any place to get cheap board?I just checked banggood got in stock for $66.

Already checked it and didn't find anything abnormal.Looks like its toast..(

Yes that was my stupid mistake:(

No PC is not seeing the usb of radio.I just hear a click from the speaker when i insert a usb cable or when i push the power button.

Solved!! See my post below. Hi all, I wanted to use head-tracker on my qx7 via its trainer port but the trainer port doesn't supply power to the head-tracker. So i tried to install stereo jack so that i could use power,signal.gnd. I used power and gnd straight from the batt connector and took signal...

MikeB wrote: ↑Wed May 09, 2018 9:23 am I'm fairly certain they are JST PH and are on a 2mm pitch.

Mike

Thanks a lot Mike.

Inside the taranis qx7 there are two connections labelled p400 and P401 that are unused, does anybody know why they are there or if they could be used for something like extra switches. I have attached a picture. Hi folks, Does anyone know the type of connectors used on these 2 plugs? I am thinking...