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SoundBlaster AWE32 CT3900 repair

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First post, by burgerowy

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Hello, today i got a SoundBlaster AWE32 CT3900 for free! Yeah, sounds amazing! Doesn't it?
There is one catch tho, after taking a deeper look at the card i noticed some capacitors and different elements missing, suggesting that someone could already be messing with the card before.
Missing components are:
C38, C83, U33 (attached photo)

Also there is a really weird capacitor soldered straight onto IC (attached photo)

I would really appreciate if someone of yall could send me values of missing capacitors and name of missing IC (U33)
Also if anyone knows what is the purpose of the soldered on capacitor please let me know 😀

Thank you in advance!

Reply 1 of 2, by aitotat

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C38 = 4,7µF
C83 = 4,7µF
U33 = 79L05 (-5V voltage regulator)
You probably have late rev 1 board? That weird capacitor is something they added proper pads on revision 2 .
You are also missing all jumpers so do not forget those.

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Reply 2 of 2, by burgerowy

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aitotat wrote on 2026-06-01, 17:13:
C38 = 4,7µF C83 = 4,7µF U33 = 79L05 (-5V voltage regulator) You probably have late rev 1 board? That weird capacitor is somethin […]
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C38 = 4,7µF
C83 = 4,7µF
U33 = 79L05 (-5V voltage regulator)
You probably have late rev 1 board? That weird capacitor is something they added proper pads on revision 2 .
You are also missing all jumpers so do not forget those.

Thank you very much for you time spent for sending me the information, i appreciate that so much ! 😀

Where can i get the info about where can i connect all the jumpers? Do i just look at google photos of the card and copy the setup? Or is it different for every board revision.

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