Jupiter-4 restoration... thoughts?

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JFunc
Newbie
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Posts: 9
Joined: Sat Feb 06, 2016 1:26 pm
Gear: Juno 106, Juno-6, JP-4, A-Juno-2, DX21, CZ-101, 01/Wfd, SY85, X3, XV3080, M1, M3R, D110, MPC1k, S950, Prophecy, Plugiator, TR-8, MFB-522, Volcas

Re: Jupiter-4 restoration... thoughts?

Post by JFunc » Sun Apr 10, 2016 12:10 pm

I'm thinking of recapping my JP-4...

I've already done the power supply, and solved the dodgy 'track crack' issue in the control boards. I also desoldered every fader, cleaned it out, re-tensioned it, rebuilt it and measured it again, before resoldering. Took ages, but thoroughly worth it.

What brand of caps did you use, if you don't mind me asking?

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ApolloBoy
Junior Member
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Posts: 142
Joined: Sun Sep 19, 2004 5:25 pm
Gear: Korg ARP Odyssey
Korg Minilogue
Korg Monotron
Korg Volca Beats
Roland Jupiter-4
Roland JX-10
Squier P-Bass
Yamaha CS01
Yamaha CS-10
Location: Campbell, CA

Re: Jupiter-4 restoration... thoughts?

Post by ApolloBoy » Tue Apr 19, 2016 4:24 am

JFunc wrote:I'm thinking of recapping my JP-4...

I've already done the power supply, and solved the dodgy 'track crack' issue in the control boards. I also desoldered every fader, cleaned it out, re-tensioned it, rebuilt it and measured it again, before resoldering. Took ages, but thoroughly worth it.

What brand of caps did you use, if you don't mind me asking?
I used a mix of Nichicon and Panasonic caps (FWIW most of the original caps in the JP-4 are Panasonic/Matsushita brand). For mine I splurged a bit and mostly used audio-grade caps, but regular general purpose caps work just fine.
Had: DX7, AX-60, SR-16, Yamaha TQ5, 01/WFD, Juno-106, MG-1, JX-03
Want: OB-6, Prophet 6, Jupiter-6

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