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 Forum index » DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
MARK II sample and hold-issues
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Mesiren



Joined: Aug 15, 2014
Posts: 1
Location: Norway

PostPosted: Fri Aug 15, 2014 1:12 am    Post subject: MARK II sample and hold-issues
Subject description: Help needed!!
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I`m having some troubles with the sample and hold. It only runs as it`s supposed to when I touch and hold either the bananajack-input, pin 3 on U-16, R210 wiper 2 and 3, R197 or R198 and some of the other components in conjunction with pins 1-7 on U-16.

When I let go, it`s like it triggers but it doesn`t "play". I`ve tested my solderings, they seems to be ok, all power/ ground connections the same, could it be Q19 causing the problems?

I don`t have a scope at the moment, any voltages I can check?

Help much appreciated!
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 Forum index » DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
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