problem with my amp

[PeePeeVagina!]

http://www.db-r.com if you cant finger it out.

 

[McIntosh 10+ year member]

No, they are not bullet proof, they have problems all the time.
That is one of the SMPS output transformers.

Twist it a small bit to the right or left, be very careful and don't apply too much pressure, it doesn't need much, about 1 degree or half a degree turn, there is a tendency to scrape the epoxy coating off of the magnet wire and short out windings!

This happens on occasion, could be a cold joint, or a shorted winding. If you already (PROPERLY) reflowed the joints connecting to the transformer, it's shorted somewhere. //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif Maybe in HV, LV or feedback windings. //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

Edit: As to why it's sounding like the sound is only half there, is well... Because it is only half there. Each transformer is made for one side of the rail. Each one has it's own rail after it's rectified and charges the filter capacitors, since it is all based from a reference voltage, and the HV filter caps make a voltage divider by being connected in series. Choppy description, but the power supply is only making one rail, positive or negative I don't know, but the sub(s) is/are only being moved in or out, not both, and therefor half the power is being applied.

Edit 2: DO NOT TOUCH THE INTERNAL COMPONENTS WHILE THE AMP IS HOOKED TO THE BATTERY THERE CAN BE LETHAL VOLTAGE AND POSSIBLY A SUBSTANTIAL AMOUNT OF POWER STORED. ie you touch something, the voltage creates an arc to you since there is a voltage difference, then the filter capacitors discharge through you as well. The filter capacitors can also be charged for some time afterwords, depending on the design of the amp.

Sound advice (a REALLY bad pun). I guess with the grossly exaggerated bass some people run shaking the entire region, the relatively fragile insulation on magnet wire could easily flake off. Not something I'd considered. They should be bulletproof. Then again lugnuts shouldn't need Loctite.

 

[MakeshiftAudio 10+ year member]

Sound advice (a REALLY bad pun). I guess with the grossly exaggerated bass some people run shaking the entire region, the relatively fragile insulation on magnet wire could easily flake off. Not something I'd considered. They should be bulletproof. Then again lugnuts shouldn't need Loctite.

Please stop posting. //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif You've obviously never messed with multifilar toroidal transformers/inductors with multiple strands of paralleled and twisted magnet wire. I've wound many of these coils, and they're pretty fragile when it comes to any magnet wire that isn't double insulated or better. Crap happens all the time.

Not only that, but anything high powered for that matter, since you seem to almost constantly talk down of anything that isn't HT.

I would highly recommend Db-r. //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

 

[ikpthegame 10+ year member]

Nah no spare parts from tvs, I got the tools when I was in school and never used them till now lol. Well anyways today I took that thing out and cleaned out the holes. I then put it back in and re-soldered it and it works again. Se we will see how long this will last. Oh ya I also cut the ends down a bit just incase the wire had a break in it so that could have been it also. But thanks for the help and info.

 

[MakeshiftAudio 10+ year member]

Yeah, good job, congrats. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif Have a good time with your amp.

/thread

 

[McIntosh 10+ year member]

Please stop posting. //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif You've obviously never messed with multifilar toroidal transformers/inductors with multiple strands of paralleled and twisted magnet wire. I've wound many of these coils, and they're pretty fragile when it comes to any magnet wire that isn't double insulated or better. Crap happens all the time.
Not only that, but anything high powered for that matter, since you seem to almost constantly talk down of anything that isn't HT.

I would highly recommend Db-r. //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

I know nothing of toroids to be sure. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif Inductor? How many H could that possibly provide? Its designed as a frickin transformer, not an inductor. I don't do HT, strictly 2 channel. Multifilar? I don't think so. Surely single conductor windings.

 

[McIntosh 10+ year member]

Yeah, good job, congrats. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif Have a good time with your amp.
/thread

I guess it wasn't the all so common shorted coil. LOL