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Old 3rd July 2007, 08:07 PM   #1
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Question hello! :) and a small question

hello!

cool forum!


i am looking for a Service Manual for the Setton BS-5500 amplifer.

mine is broken and id like to fix it.


thanks!!!!
Henry
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Old 4th July 2007, 01:58 AM   #2
djk is offline djk
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Good luck.

What's wrong with it?

It's just a typical made-in-Japan piece from the mid 70s, nothing fancy. Should be able to fix an amp problem without a schematic.
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Old 4th July 2007, 02:09 AM   #3
anatech is offline anatech  Canada
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Hi theblackknight,
Welcome to DiyAudio!

djk is right, any good tech could repair that with no docs. However, you aren't so let's go.

Do you have a circuit diagram?

Can you take a picture of the inside?

What is your exact complaint. No power rates as an exact complaint (as in no lights - nothing).

-Chris
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Old 4th July 2007, 03:55 AM   #4
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the left side wont go out of protection due to a leaky PS cap.

i want to replace all four caps myself, but i need the manual to reset the bias and offset.

thanks!
Henry
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Old 4th July 2007, 04:07 AM   #5
anatech is offline anatech  Canada
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Hi Henry,
Interesting. It must be right open so it appears to the protection that there is an offset.

Replace the caps first, no gerfingerpoken yet! Those adjustments should be close unless something else is going on.

-Chris
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Old 4th July 2007, 07:24 AM   #6
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on the bottom of one of them there is a tiny hole on top of a bump that was covered in gunk.

didnt know something so small could cause such big problems!



i also just found replacements at mouser electronics. i have not ordered them just yet, but they are EXPENSIVE! $20 each!
---


http://www.mouser.com/search/Refine....RefType=Header

and, they arent the right size! the old ones have a 5cm diameter, and are only 6cm tall, while the new ones are 4cm by 8cm.
what should i do?

once/if i replace them, can i go ahead and use it? or do i have to take it to a tech to have the bias current and DCoffset adjusted?


thanks!
Henry
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Old 4th July 2007, 08:52 AM   #7
Symon is offline Symon  United Kingdom
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Hi Henry,
I just looked at the link, it says there is a min quantity of 64, also
these capacitors aren't stocked.


Symon
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Old 4th July 2007, 03:48 PM   #8
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oh. your right.


where should i order them from, then?

and what should i do if they dont fit?




thanks for the help!!!!

henry
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Old 4th July 2007, 03:58 PM   #9
anatech is offline anatech  Canada
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Hi Henry,
Simple. Try Newark and Digikey as well.

-Chris
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Old 15th July 2007, 05:03 PM   #10
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do you think these will work?


http://www.newark.com/jsp/Passives/C...sp?sku=30K6620


the only problem is, the old ones are 5 mm dia and 6 mm tall.

will these work also?

what can i do to make them fit?



thanks!
Henry
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