How to replace filter cap with 3 leads?

[z-adamson]

The third lead is not a stabilizer dummy lead.

I believe these are two caps in one can and that it is done this way to save space.

The challenge is that the caps are soldered to a board. That said, are these replaceable? Would replacing them entail modification of the board?

 

[redk9258]

Let's see a picture of it. Schematic?

 

[Lavane]

Let's see a picture of it. Schematic?

Also the value of the dual cap. Sometimes changes were made that aren't in the service manual or schematic. I have been able to find a few modern replacements. But usually you have to use two seperate caps. Some people make a small mounting plate for the new caps. One amp I had had extra holes in the chassis to mount both new caps using cap clamps. But if they are mounted on a PCB you may have to mount them off board. If they aren't the big main filter caps you might be able to find those long pencil caps to fit the space on the board. Pictures will definitely help.

 

[z-adamson]

Also the value of the dual cap. Sometimes changes were made that aren't in the service manual or schematic. I have been able to find a few modern replacements. But usually you have to use two seperate caps. Some people make a small mounting plate for the new caps. One amp I had had extra holes in the chassis to mount both new caps using cap clamps. But if they are mounted on a PCB you may have to mount them off board. If they aren't the big main filter caps you might be able to find those long pencil caps to fit the space on the board. Pictures will definitely help.

Yes, main filter caps.....12000uf.

This amp is so crowded I dont see mounting them off of the board as viable unless you are talking about remote mounting them in a separate chassis. Not worth it though.

 

[ChrisMarantz]

Is it 12000uf per section (12000 x 2) or is it 12000uf total? What is the voltage? - Chris

 

[z-adamson]

Is it 12000uf per section (12000 x 2) or is it 12000uf total? What is the voltage? - Chris

All I can say is that it says 12000uf on the side. I have not measured or removed the caps. Voltage rating = 70 volts.

 

[avionic]

All I can say is that it says 12000uf on the side. I have not measured or removed the caps. Voltage rating = 70 volts.

 

[petehall347]

pics will confirm this .both sides of the board will seal the deal

 

[KingBubba]

You might very easily find 2 12,000uf caps that would fit in the original canister. Splice the two negatives and mount it however you can in the space provided. You could even use Hot glue to hold the canister in place.

 

[ChrisMarantz]

If I'm not mistaken - a 12,000uf 80 volt capacitor would be about the size of a Pepsi can (like in a Marantz 1200) It doesn't seem likely that there would be 2 of those in the same can - Chris

 

[z-adamson]

If I'm not mistaken - a 12,000uf 80 volt capacitor would be about the size of a Pepsi can (like in a Marantz 1200) It doesn't seem likely that there would be 2 of those in the same can - Chris

Pretty sure its 2 6000uf caps in a single canister.

 

[z-adamson]

I am currently cameraless.

 

[avionic]

What make and model?

 

[z-adamson]

What make and model?

Toshiba SC-665

 

[petehall347]

does it look same as this one ?

 

[z-adamson]

does it look same as this one ?

That is it.

The filter caps solder to the board with blade-like leads, 3 leads per cap.

 

[petehall347]

i couldn't find a pic of solder side or of the caps themselves . i also couldn't find a free manual ..
tell us where the board traces go to from the 3 connections of one of those caps . ?