Page 1 of 1
Full power burns parts :(
Posted: Fri May 10, 2013 6:30 pm
by phiamo
Hi, i nearly got a hovering mode implemented, when the flie started to BURN
- P1030759_small.JPG (175.65 KiB) Viewed 12303 times
near the r of r25 the thing started glowing and i removed the lipo as fast as i could ...
i am quite unsure if this was due to my tries to get the hover mode working, and having too much max thrust activated ....
now the whole flie is stinking for burned electrics and if i re-add the lipo the M1 Motor runs steadily
Any advice, other than check every single part and replace the broken ones
?
Re: Full power burns parts :(
Posted: Fri May 10, 2013 7:06 pm
by atomicdog
I see a lot of flux residue. After you replace Q1 and any other damaged part I would clean the board.
All that flux residue makes it hard for you to see if you got a good solder connection.
Since it's sticky it can also hold small solder blobs that could short out pins between parts.
Re: Full power burns parts :(
Posted: Mon May 13, 2013 12:49 pm
by tobias
It looks like something around M1 shorted and the M1 transistor took the hit, but it didn't short hard enough to trigger the battery short circuit protection. That's a bit unlucky...
Everything except the M1 transistor seem to look fine so changing the transistor and cleaning the board should fix it.
Re: Full power burns parts :(
Posted: Mon May 13, 2013 1:08 pm
by phiamo
Mhh i thought its more one of the PMV31XN not a transistor...
is the pcb layout somewhere accessible?
the dxf i found and tried to open with librecad did only contain the pcb form but not the components ...
Re: Full power burns parts :(
Posted: Mon May 13, 2013 4:38 pm
by atomicdog
phiamo wrote:Mhh i thought its more one of the PMV31XN not a transistor...
is the pcb layout somewhere accessible?
the dxf i found and tried to open with librecad did only contain the pcb form but not the components ...
PMV31XN is a transistor.
It's a FET and not a BJT but still a type of transistor.
Re: Full power burns parts :(
Posted: Mon May 13, 2013 7:34 pm
by tobias
We have a bit more work to do on the layout project (cleaning up) before we want to release it but hopefully you can find what you are looking for at the wiki:
http://wiki.bitcraze.se/projects:crazyf ... schematics
Re: Full power burns parts :(
Posted: Tue May 14, 2013 8:20 am
by phiamo
Perfect, so i ordered the right parts
hopefully if they arrive, i am abled to replace them ....
Re: Full power burns parts :(
Posted: Sat May 18, 2013 12:17 am
by ddollar
Do you have your hover code somewhere we could look at?
Re: Full power burns parts :(
Posted: Sat May 18, 2013 11:48 am
by phiamo
Re: Full power burns parts :(
Posted: Mon May 20, 2013 10:36 pm
by phiamo
So glad to tell i got it fixed
i did not get the original PMV31XN as soon as the TSM 2312 SMD which is nearly the same spec, so i used it since it got here and the flie flys again !!
Also got two new motors from seedstudio and replaced the one on m1 which was the broken one (
http://forum.bitcraze.se/viewtopic.php?f=11&t=136)
maybe that was also a cause for this ....