Vintage Synth Repair

Re-solder the voice cards mother board, every connection.  That will solve 2/3 of the issues.

Inspect around bad battery for damage do to any leakage.

And as I recall, one of the two bridge rectifier gets too hot and should be up-rated, sure someone else will pipe up on that(or was that the OBXa).


Love the sound of a OBX, so if you give up on it, let me know!

R


>________________________________
> From: Rod Abernethy <rod@rednoteaudio.com>
>To: vintagesynthrepair@yahoogroups.com 
>Sent: Saturday, May 25, 2013 9:19 AM
>Subject: [vintagesynthrepair] Need some advice on fixing my OB-X
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>Thanks for letting me join the group, I'm a vintage synth fan from way back.   My beloved OB-X has started acting up lately and I'm going to be doing repairs on it for the first time since I bought it 15 years ago.
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>The symptoms are that I turn it on and some button lights come on and the buttons respond, some don't.  All patches are gone, some patch slots make sounds that are very sick sounding, others are empty.  The Autotune selector on the front panel lights on and off, but I see no LEDs lighting up showing that Autotune is doing it's tuning sequence on the sound cards.   I've replaced the 3V Lithium battery, but nothing changed.
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>I've already found some great reference stuff on other sites and now realize that I'm probably in for a wild ride to fix things.  But I would greatly appreciate any help from anyone who has experience with OB-X repair.
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>Thanks!
>Rod
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