Powerline networking (Devolo DLAN 200) not connecting

[DoctorWedgeworth]

Is this the right board? Sorry if not.

I've got a pair of these plugs for ethernet over powerline. Today it stopped working - both plugs power on, both detect ethernet connections, and wireless works on the receiving end. But there's no connection between the two, and the receiver has a smell like a burnt circuit board.

I've opened both sides up but there are no bulged capacitors at either end. There is a fuse on the receiver, but if that was blown would it power on at all? Unfortunately my DMM is broken so I can't easily test the fuse.

Can anyone point me in the right direction? It's a Model: MT2130 board and I can post pictures if anyone is interested in helping me debug.

Thanks.

[rogfanther]

Re: Powerline networking (Devolo DLAN 200) not connecting

Could be the transformer between main board and the line. Please, post the pictures.

[DoctorWedgeworth]

Re: Powerline networking (Devolo DLAN 200) not connecting

Thanks for responding. These photos are from the receiver, the bottom of the board is a little dark because I'd have to desolder it to get it out of the casing.

http://i.imgur.com/4CSTgIs.jpg
http://i.imgur.com/MFREDF4.jpg
http://i.imgur.com/0T2oAeq.jpg
http://i.imgur.com/HXORewQ.jpg

[ben7]

Re: Powerline networking (Devolo DLAN 200) not connecting

Thanks for responding. These photos are from the receiver, the bottom of the board is a little dark because I'd have to desolder it to get it out of the casing.

http://i.imgur.com/4CSTgIs.jpg
http://i.imgur.com/MFREDF4.jpg
http://i.imgur.com/0T2oAeq.jpg
http://i.imgur.com/HXORewQ.jpg

Have you taken a look at what is under the foam on the circuitboard? Probably a chip, just want to see if it looks fried or not.

[DoctorWedgeworth]

Re: Powerline networking (Devolo DLAN 200) not connecting

I'll take it off this afternoon and get back to you. If it is fried, I'm not being overly pessimistic to think that my chances of being able to replace it with a cheap soldering iron are slim, right?

Also I bought a compatible replacement pair yesterday and I've verified that the sending side of the original pair works with the new set but the receiver doesn't, so it is the one I posted pictures of that's blown. (if I can fix it it would still be useful as a spare or for learning)

[ben7]

Re: Powerline networking (Devolo DLAN 200) not connecting

I'll take it off this afternoon and get back to you. If it is fried, I'm not being overly pessimistic to think that my chances of being able to replace it with a cheap soldering iron are slim, right?

Also I bought a compatible replacement pair yesterday and I've verified that the sending side of the original pair works with the new set but the receiver doesn't, so it is the one I posted pictures of that's blown. (if I can fix it it would still be useful as a spare or for learning)

No, the chance of repairing an SMD chip with a regular soldering iron is quite slim

Does the receiver's indicator lights turn on at all? That may give us a clue also as to what might be wrong (power supply failure?).

[DoctorWedgeworth]

Re: Powerline networking (Devolo DLAN 200) not connecting

Turns out the problem was software based - the encryption had erroneously come on at once side of the powerline but not the other, and a hard reset (holding down buttons) fixed it. Sorry for wasting your time