hello! :) and a small question

theblackknight · 3rd July 2007, 08:07 PM

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

djk · 4th July 2007, 01:58 AM

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.

anatech · 4th July 2007, 02:09 AM

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

theblackknight · 4th July 2007, 03:55 AM

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

anatech · 4th July 2007, 04:07 AM

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

theblackknight · 4th July 2007, 07:24 AM

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

Symon · 4th July 2007, 08:52 AM

Hi Henry,
I just looked at the link, it says there is a min quantity of 64, also
these capacitors aren't stocked.

Symon

theblackknight · 4th July 2007, 03:48 PM

oh. your right.

where should i order them from, then?

and what should i do if they dont fit?

thanks for the help!!!!

henry

anatech · 4th July 2007, 03:58 PM

Hi Henry,
Simple. Try Newark and Digikey as well.

-Chris

theblackknight · 15th July 2007, 05:03 PM

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

3rd July 2007, 08:07 PM	#1
theblackknight diyAudio Member Join Date: Jul 2007	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

4th July 2007, 01:58 AM	#2
djk diyAudio Member Join Date: Feb 2001 Location: USA	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. __________________ Candidates for the Darwin Award should not read this author.

4th July 2007, 02:09 AM	#3
anatech diyAudio Moderator Join Date: Jun 2004 Location: Georgetown, On	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 __________________ "Just because you can, doesn't mean you should" © my Wife

4th July 2007, 04:07 AM	#5
anatech diyAudio Moderator Join Date: Jun 2004 Location: Georgetown, On	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 __________________ "Just because you can, doesn't mean you should" © my Wife

4th July 2007, 03:58 PM	#9
anatech diyAudio Moderator Join Date: Jun 2004 Location: Georgetown, On	Hi Henry, Simple. Try Newark and Digikey as well. -Chris __________________ "Just because you can, doesn't mean you should" © my Wife


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4th July 2007, 03:55 AM	#4
theblackknight diyAudio Member Join Date: Jul 2007	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

4th July 2007, 07:24 AM	#6
theblackknight diyAudio Member Join Date: Jul 2007	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

4th July 2007, 08:52 AM	#7
Symon diyAudio Member Join Date: Mar 2002 Location: Herts, UK	Hi Henry, I just looked at the link, it says there is a min quantity of 64, also these capacitors aren't stocked. Symon

4th July 2007, 03:48 PM	#8
theblackknight diyAudio Member Join Date: Jul 2007	oh. your right. where should i order them from, then? and what should i do if they dont fit? thanks for the help!!!! henry

15th July 2007, 05:03 PM	#10
theblackknight diyAudio Member Join Date: Jul 2007	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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