System Red Amplifier probs
#9
(2017-06-04, 03:56)ShimmerNZ Wrote: So yeah, it seems I didn't fix it. Problem continued and finally today it seems to have died.

Discovery board lights up, LCD lights up, but eth has stopped working... no lights...nothing and lcd shows as eth not connected.

had to replace the 10uh inductor near the mini usb plug on the main board previously (it was getting hot from whatever was shorting).

Station 1243 is now down/dead.

Signed up for system blue. Too many weekends down trying to fix the current one (over estimated my ability to fix it).

It's alive! Had to replace a second 10uh inductor to bring the Ethernet back to life. Root cause of where the short was occurring I finally managed to trace. It was the soldering to the Ethernet outlet on the amp. It looks like when I originally soldered it some of the solder bleed through to the other side of the board (but couldn't see it as the plug covers it). Not enough to short, but when any sideways twisting motion on the plug occurred it was enough to create the short. Despite the lan cable going through a strain connector there was still enough movement in the wind to cause the short on an irregular basis. Guess I have plenty of spare parts now =)

Hopefully no further issues and haven't broken anything in the process of trying to 'fix stuff' previously.
Stations: 1243, 1887
Reply


Messages In This Thread
System Red Amplifier probs - by ShimmerNZ - 2017-04-17, 06:53
RE: System Red Amplifier probs - by BobW - 2017-04-18, 02:06
RE: System Red Amplifier probs - by ShimmerNZ - 2017-04-18, 10:16
RE: System Red Amplifier probs - by BobW - 2017-04-19, 01:26
RE: System Red Amplifier probs - by ShimmerNZ - 2017-04-23, 06:58
RE: System Red Amplifier probs - by BobW - 2017-04-26, 03:11
RE: System Red Amplifier probs - by Dale.Reid - 2017-04-24, 01:32
RE: System Red Amplifier probs - by ShimmerNZ - 2017-06-04, 03:56
RE: System Red Amplifier probs - by ShimmerNZ - 2017-06-20, 08:56



Users browsing this thread: 1 Guest(s)