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 Forum index » DIY Hardware and Software » YuSynth
Steiner 2SC1583 + TL071 based schematics /pcb mismatch?
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Karlisss



Joined: Apr 20, 2015
Posts: 25
Location: Latvia (EU)

PostPosted: Thu Mar 17, 2016 4:30 pm    Post subject: Steiner 2SC1583 + TL071 based schematics /pcb mismatch? Reply with quote  Mark this post and the followings unread

hi.
just finished
2SC1583 + TL071 based Steiner (old desighn) and no success....
checked wires by legend - ok
then started to check schematics and pcb with component overlay and STUCK.

can someone help me understand how after INput, - 10uf(+) output, - R1(10K), - signal can go in 072 pin2....
I cant reed schematic further cos i totaly cant understand what is going on.


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Grumble



Joined: Nov 23, 2015
Posts: 1294
Location: Netherlands
Audio files: 30

PostPosted: Thu Mar 17, 2016 10:58 pm    Post subject: Reply with quote  Mark this post and the followings unread

Ic1 being a TL072 has two opamps in one package.. The designer made a mistake by switching the opamps in the schematics and the layout.
This is what I found. Maybe there is more, its hard to check this with a phone, even if its a smart one Wink
Make sure you use a tl071 u2 and tl072 for u1.
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Karlisss



Joined: Apr 20, 2015
Posts: 25
Location: Latvia (EU)

PostPosted: Fri Mar 18, 2016 6:49 am    Post subject: Reply with quote  Mark this post and the followings unread

Thanks.
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