i tried to scratch to get the trace for vi, but i couldnt get it :-(
i would need another option for the video in
thank you for any help

Pin 22 is VIN on the OSD chip. You should be able to trace it to a 0.1uF cap and a 75 ohm resistor. Solder onto the cap or resistor.

thank you for your reply
i couldnt find a chip with 14 "legs" per side like in the picture above

Sorry I totally spaced. It is your VTX not your FC. There is likely not an OSD chip. Let me see if I can research the chip you posted.

I found the datasheet for the RTC6705. It looks like pin 10 is the analog video input. But there was no suggested circuit. So I am not sure how the chip works. Maybe someone with EE degree might chimed in.

That's outside of my wheelhouse, unfortunately.

I have a perfectly good ESC, except for the fact I broke off the connector for the wires to the FC.  Such a shame having a good piece of tech that you can't take advantage of because of the little connector.  I can see where to solder to, they even labeled it.  But they are so tiny there is no way I could solder wires to those.

On the bottom of ESC in this image.


Unfortunately I think you are in the same boat as me. It's useless unless you could solder to it.

my pads are truly ripped off

i remove these connectors sometimes and solder the wires directly not by accident xD
you can do that :-) get good soldergear and it should work.
https://intofpv.com/t-sparta69 here is an example.

if you are a bg buyer, it might be available from other sources too, get this one:
https://m.banggood.com/BEST-BST-5G-Solde...m-alsolike

The way I figure it, it's trash to you now, why not at least try to fix it. If you can't it's STILL trash. Practice on some old circuit boards from something else you or friends have, DVD player, vcr? CD player, tv radio anything just practice. Then give it a go, it's all about learning, AND having FUN.

Maybe in the future I'll try to fix that ESC. Don't have a build to put it in right now anyway, but if I could fix it I would have a good spare for my 5"

(21-Jul-2021, 09:58 PM)MrSolo Wrote: That's outside of my wheelhouse, unfortunately.

I have a perfectly good ESC, except for the fact I broke off the connector for the wires to the FC.  Such a shame having a good piece of tech that you can't take advantage of because of the little connector.  I can see where to solder to, they even labeled it.  But they are so tiny there is no way I could solder wires to those.

On the bottom of ESC in this image.


Unfortunately I think you are in the same boat as me.  It's useless unless you could solder to it.

If you have a hot air station then you can easily use soldering paste and solder that connector. 

Or if you have steady hands then it can be done with a regular soldering iron.

Maybe keep if for a day you feel adventurous

Here is an image of a Tramp HV that I ripped the UFL connector off recently:



I have ordered a replacement but I am not tossing this in the bin (atleast not yet).

The top/bottom/left pads are ground. 

I had to scrape the board to expose some of the remaining signal pad to the right circled in yellow which is really close to that large ground pad.

Saving this for a warm day when my hands are not freezing cold

scratch away a bit of that huge ground pad :-)

(21-Jul-2021, 09:58 PM)MrSolo Wrote: That's outside of my wheelhouse, unfortunately.

I have a perfectly good ESC, except for the fact I broke off the connector for the wires to the FC.  Such a shame having a good piece of tech that you can't take advantage of because of the little connector.  I can see where to solder to, they even labeled it.  But they are so tiny there is no way I could solder wires to those.

On the bottom of ESC in this image.


Unfortunately I think you are in the same boat as me.  It's useless unless you could solder to it.

If you can get it under some magnification you'd be surprised how easy that would be. Assuming you're comfortable with soldering other pads like RXs and such. Under a 5x scope those pads will look like motor pads. A tip in good working order helps too, chisel tip or bent chisel like this one in the green handle: 

(22-Jul-2021, 02:28 AM)kafie1980 Wrote: If you have a hot air station then you can easily use soldering paste and solder that connector. 

Or if you have steady hands then it can be done with a regular soldering iron.

Maybe keep if for a day you feel adventurous

I've never used a Hot Air Station before.

I am holding on to it for now.  If I need it for a build I think I will just try using magnification and a TINY solder tip.  Maybe I'll research using Hot Air.
The board itself around that area looks perfect, like if I could just put a new connector down and solder it on that would be great. But I don't think I'll buy a Hot Air just for this 1 job.  I'll probably end up buying one of those Lighted Magnifying glasses, and trying to just carefully solder wires directly to it.