Ian posted this on the OB12 list. I asked him if I could post it here for anyone else that might run into the problem over time. He gave the OK.
"I had a problem with the display back light flickering. I opened the synth up by removing the five screws on the base panel situated under the wooden end pieces on each side of the keyboard, the three screws under the ribbon controller and the five screws at the bottom of the rear panel. I found this easiest to do by resting the synth on its side in an armchair in the living room! (I also needed my wife to hold it open at one end as certain wiring prevents opening completely!). Once inside I found that there was a small white 4-pin connector (situated roughly under the effects section of the front panel) that fed a wire into the back of the display which was very loose fitting. I just cut a very thin piece of selotape 10mm x 2.5mm approx and stuck the two parts of the connector firmly together. This has cured the flickering and the display is much brighter. The connector was so loose that I would not be surprised if some just fall off altogether if the synth is moved [regularly]. It only took about 20 minutes to fix altogether."
Monday, May 19, 2008
2 comments:
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MATRIXSYNTH - EVERYTHING SYNTH
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MATRIXSYNTH - EVERYTHING SYNTH
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I managed to perform this operation without having a wife available. However, I didn't find the connector being loose. So I blew Kontakt 60 spray all display-related connectors, connected and disconnected them a couple of times, waited until the stuff was vaporized and reassembled the device. The effect was none.
ReplyDeleteThe flickering display is what great many OB12 synthesizers suffer from. Its perhaps their most annoying weekness, apart from some design issues such as the latency of the apreggiator. It's very sad that viscount didn't make a successor, because the concept of the OB12 is simply great. Wiping out the bugs and giving it a fat processor, perhaps yielding something like an OB24 could have been a major hit.
I love this great classic OB12.
ReplyDeleteThe wooden grey side panels are a design misfit. I'd like to replace them with cherry wood or something alike. Also my display shows a horizontal line. The display was the part they sure tried to save money. A great studio and live synth with it's 4 keyboard splits for dynamic sound scapes.