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    Repairing GEM novoPiano DP-25

    Hi Steve, thanks for your reply and your help! hmmm, i have to check it. I tought, that the wiring of the transformator is like this. (see picture) I wrote an email to the company ACEM. They produced the transformators. Maybe i can get a datasheet of it, to be shure how the wiring is.
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    Repairing GEM novoPiano DP-25

    So, i changed the caps now. But the voltage ist still low. I got the following values on the transformator: Transformator conntected on the green connector block: red1/gnd: 14,5VAC red2/gnd: 14,5VAC red/red: 29,5VAC yellow1/gnd: 7,2VAC yellow2/gnd: 6,8VAC yellow/yellow: 12VAC Transofmator...
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    Repairing GEM novoPiano DP-25

    Dear Steve, thanks for the fast answer. I measured the voltage on the green connector block on the power supply board. Bottom left corner I disconnect the transformator cable of the green connector block. I used a normal voltage meter (RMA) I orderd already all capacitors of the power supply...
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    Repairing GEM novoPiano DP-25

    So... i checked the voltage now, directly after the transformator on the green connector block The 14V side is ok. The 11V side is not o.k. I measured 5-6V. When i disconnect the wire it, the voltage is up to 12V. So I think there is a defective component somwhere on the power supply board. Do...
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    Repairing GEM novoPiano DP-25

    yes, you are right. That is the best way to start. I will check the voltage and the caps and report it.
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    Repairing GEM novoPiano DP-25

    Dear all, I am looking for long time, to get some information about the GEM Novo Piano I just read the post about "DP25". Thanks for that, because it is the only documentation i found in the www I have an old DP30. When i switch on all LED are on and the display is shown something. Do you have...
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