RE: Magnepan MG12 Frustration, Please Help.

Posted by neolith (A) on September 6, 2012 at 09:32:57

In Reply to: Magnepan MG12 Frustration, Please Help. posted by greenamyer on September 5, 2012 at 15:31:07:

If the panels worked before you upgraded, and they worked for Magnepan, clearly you are doing something wrong when you put your new parts in. You will need an ohm-meter to check things out.

First, measure the resistance by placing the leads on each end of the 50 mfd cap. The meter will jump a bit and then settle to ~3.9 ohms. If you get no reading the speaker is bad or not connected to the tabs.

Re-measure by putting one lead on the positive input terminal and the leaving the other on the connection with the white wire attached. It should again read 3.9 ohms. If not the connection is broken - try re-soldering.

Now move the lead from the positive input to the negative input leaving the other lead at the same point (white wire). You should get ~0.5 ohm. If not the problem lies with the connections to the coil. Again- resolder.

I see on the schematic that there are two black wires. One goes from the negative terminal to the fuse block and the other comes from the woofer/cap and goes to the positive terminal where the red wire comes off. Make sure you didn't miswire.

I hate to say the obvious, but if you can't use an ohm-meter, you have no business doing DIY upgrades to your equipment. Soldering requires much more skill than using a meter.

"Our head is round in order to allow our thoughts to change direction." Francis Picabia

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Follow Ups Full Thread

Topic - Magnepan MG12 Frustration, Please Help. - greenamyer 15:31:07 09/05/12 (16)

Can I suggest you register .... - andyr 16:57:32 09/06/12 (2)

Then he could only post under one name.. - neolith 05:26:05 09/07/12 (1)

Actually, I think he did register once under the moniker of - Opus 104 17:04:44 09/07/12 (0)

do you live in the third world? - farfetched 13:34:16 09/06/12 (6)

RE: do you live in the third world? - IEaudiodude 14:13:17 09/06/12 (5)

touche - farfetched 18:07:43 09/08/12 (0)

RE: do you live in the third world? - JBen 15:44:09 09/06/12 (2)

RE: do you live in the third world? - IEaudiodude 20:25:39 09/06/12 (0)

Huh? /nt\ - Opus 104 16:15:48 09/06/12 (0)

Some folks have no business fu#$&ing with it. That's his point. /nt\ - Opus 104 14:20:06 09/06/12 (0)

RE: Magnepan MG12 Frustration, Please Help. - neolith 09:32:57 09/06/12 (4)

RE: Magnepan MG12 Frustration, Please Help. - pictureguy 12:08:13 09/06/12 (3)

RE: Magnepan MG12 Frustration, Please Help. - neolith 18:47:43 09/06/12 (2)

RE: Magnepan MG12 Frustration, Please Help. - pictureguy 21:17:08 09/06/12 (1)

RE: Magnepan MG12 Frustration, Please Help. - neolith 05:08:58 09/07/12 (0)

RE: Magnepan MG12 Frustration, Please Help. - stigs 16:41:14 09/05/12 (0)

Follow Ups

RE: Magnepan MG12 Frustration, Please Help. - neolith 09:32:57 09/06/12 (4)

RE: Magnepan MG12 Frustration, Please Help. - pictureguy 12:08:13 09/06/12 (3)

RE: Magnepan MG12 Frustration, Please Help. - neolith 18:47:43 09/06/12 (2)

RE: Magnepan MG12 Frustration, Please Help. - pictureguy 21:17:08 09/06/12 (1)

RE: Magnepan MG12 Frustration, Please Help. - neolith 05:08:58 09/07/12 (0)

RE: Magnepan MG12 Frustration, Please Help.

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