Thread

Classic I / Classic II, No Internal Sound Mystery

Classic I / Classic II, No Internal Sound Mystery Troubleshooting 43 posts Dec 22, 2013 — Jan 4, 2014

#31 Fri, 3 Jan 2014 - 01:06

Its almost as bad as the song thats went viral, "The fox". That song is just....... (loss for words)

Click to expand...

At least the Fox song was a joke - the artist was the U.S. equivalent to Weird Al. He made it in jest, never thinking it would take off.

Yea, well it took off. and it plays so often that it burns into my brain. lol. It seems like just about every radio station is playing it, and im hearing it on internet radio often too. Almost just like that LMFAO song a couple years back, sexy and i know it, which ironically similar category as the song being discussed earler.

#32 Fri, 3 Jan 2014 - 01:34

how about:

baby got back

#33 Fri, 3 Jan 2014 - 01:40

I like sir-mix-alot. I dunno too much about that song though.

But ALOT of his other work gets un-noticed. hes written a TON of songs, and quite a few using the Roland-808. The famous 808 cowbell LOL.

#34 Sat, 4 Jan 2014 - 09:15

Well it's official my classic had a bad speaker. Tested the extra boards I have and out of seven six were bad. So I put in a good one and boom sound. So I need to solder it in (it's late) then screw it in then button it up.

#35 Sat, 4 Jan 2014 - 11:41

ok great then that might also be scott's issue as well with his classic.

#36 Sat, 4 Jan 2014 - 11:55

how about:baby got back

Should do "Posse on Broadway" from the Swass album...

'course, the CRT image might begin jiggling from all the bass... hehe

-J

#37 Sat, 4 Jan 2014 - 16:01

Im beginning to wonder, Disassemble the dead speaker.

I wonder if the coil is being corroded/eaten away by the enamel they used to coat the voice coil wire to give it its insulative properties.

#38 Sat, 4 Jan 2014 - 17:15

Ill do a take apart but I would guess moisture break down.

#39 Sat, 4 Jan 2014 - 19:40

awesome.. I am going for shoddy materials/build quality.

or maybe when the caps go, creates an adverse effect, sending too much current to the speaker blowing the coil.

#40 Sat, 4 Jan 2014 - 20:22

i dug mine outta the trash and tore it open.

looks like the little wire right before it goes into the voice coil, cooked.. it looks black, to where the other wire does not.

[attachment=0]Screen Shot 2014-01-04 at 3.15.22 PM.png[/attachment]

otherwise the coil looks to be in pretty good shape.

#41 Sat, 4 Jan 2014 - 20:33

That means the Speaker was getting DC. Which also means, the speaker amplifier is DC-Coupled to the audio output stage, and bad capacitors I guess could affect the DC Offset.

Need to measure the output connections and be sure there is no DC sitting there.

#42 Sat, 4 Jan 2014 - 20:55

ah the speaker was getting constant dc voltage… i see. yeah i guess i should take my multimeter and see if there is an constant voltage going to it…

i am thinking now that the caps have been changed… it will probably be fine.

#43 Sat, 4 Jan 2014 - 20:57

ah the speaker was getting constant dc voltage… i see. yeah i guess i should take my multimeter and see if there is an constant voltage going to it…i am thinking now that the caps have been changed… it will probably be fine.

Probably so. Word of caution for non-recapped classic owners. If the caps are bad, you'll have DC on your speaker and itll smoke.