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Love electronics and Computers


Hometown:

Solihull


Activity Feed

David replied to R. D. Starwalt's discussion APM2.5 5V/Vcc Schematic
"Hello,
I think I have tracked it down to a level shifter.
Cut the track on the vcc side of the TXB0104 and and checked the pad of the 3.3 and the volts was 0 volts, so I soldered the new regulator in and connected usb got 3.3 volts happy face.
but…"
Jul 20, 2015
David replied to R. D. Starwalt's discussion APM2.5 5V/Vcc Schematic
"Its a china one been a really good control till now.
Right I have probed the pads and I am getting  1.5 Mega ohms,
Seems OK to me.
Checked all diodes and they are fine."
Jul 19, 2015
David replied to R. D. Starwalt's discussion APM2.5 5V/Vcc Schematic
"Hi,
Yes I am referring to the regulator.
I get the 1.77 volts while the apm is first plugged in boot up.
"REGULATOR IS REMOVED" for this test. 
If I probe the board the input VCC  pad I get 4.86 Volts witch is right, but the 3.3V pad I get 4.68…"
Jul 18, 2015
David replied to R. D. Starwalt's discussion APM2.5 5V/Vcc Schematic
"Just come back from a flight. Plugged in my apm 2.6 to download the logs,
but cannot get it to connect, checked the 3.3 regulator and getting 4.8 volts on the out put pin
so I removed it to replace with new one thought I would check the output on…"
Jul 11, 2015
David replied to Dave Hicks's discussion APM 2.5+ No dataflash inserted
"Hello,
I have the same problem. Got a  arducopter last week it fly's very nice, but when I tried to get the logs from it
I get no dataflash inserted.
found that the logging was disabled so I enabled it unplugged it and took it for a spin again.…"
Jun 25, 2015
David replied to David's discussion APM no Logging
"Thank you Graham.
David"
Jun 13, 2015
David posted a discussion
I have moved this post a couple of times now so not sure were to put this.Hello,Got a APM arducopter last week it fly's very nice, but when I tried to get the logs from itI get no dataflash inserted.found that the logging was disabled so I enabled…
Jun 13, 2015