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Author Topic: Smashup Volatges Off 1 Side [resolved]  (Read 4724 times)

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Offline galyons

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Re: Smashup Volatges Off 1 Side
« Reply #30 on: July 21, 2015, 08:48:08 AM »
Yep, they are gone!
Geary
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Offline galyons

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Re: Smashup Volatges Off 1 Side
« Reply #31 on: July 26, 2015, 11:15:51 AM »
If you aren't getting 2.5V out of the 431 chip on one side, you can try replacing it. 

-PB
Replaced one of the the LM431's.  Before voltage output  was 1.3VDC, now the same, 1.3VDC.  Didn't do the other.
Cheers,
Geary
VPI TNT IV/JMW 3D 12/FR1 MkII Soundsmith retip >Eros TH+ Otari MX5050 IIIB2 > Eros + Aurelic Aries ANK Dac2.1B > BeePre >Paramount 300B 7N7 > EV Sentry IV-A

Thorens TD124/Ortofon RMG-212/SPU >Seduction > Smash^Up> Paramour 45 MQ >K12's

Online Paul Birkeland

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Re: Smashup Volatges Off 1 Side
« Reply #32 on: July 31, 2015, 10:32:51 AM »
Replaced one of the the LM431's.  Before voltage output  was 1.3VDC, now the same, 1.3VDC.  Didn't do the other.

They are in parallel, so you'd need to do them both.
Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline galyons

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Re: Smashup Volatges Off 1 Side
« Reply #33 on: August 01, 2015, 12:20:50 PM »
Thanks Paul!  Problem solved!  Although my LM431 stock took a big hit! I am getting 2.5VDC out of both boards at +reg A.  Also solved my ripple on the outputs, as well.  Sounds damn fine!!

Cheers,
Geary

VPI TNT IV/JMW 3D 12/FR1 MkII Soundsmith retip >Eros TH+ Otari MX5050 IIIB2 > Eros + Aurelic Aries ANK Dac2.1B > BeePre >Paramount 300B 7N7 > EV Sentry IV-A

Thorens TD124/Ortofon RMG-212/SPU >Seduction > Smash^Up> Paramour 45 MQ >K12's