Hi,
I try to repair this fly-back type PSU, I diagnosed (identifiable) dead N-MOS and fuse, but there are 3 smd resistors on the bottom that burned and became unreadable.
The support in charge of the brand in France managed to get me the schematics from Ecler, but it didn't include the PSU board. After a while they finally told me that the unit was too old so they don't have the PSU board schems.
I can find replacement PSU board online, but only for the Nuo 3 or 4 or 5, and it seems they ar compatible with each other, as I often find boards compatible with these 3 Nuos.
Funnily, Ecler won't share the service manuals for the newer models either.
My board version is : 11.0864.04, and it has what looks like 2 bipolar outputs.
Each one having a black, yellow and brown cables, and 2 470μF output Rubycon electrolytics, rated for 35V, so maybe for ±18 or 15V outputs.
If someone can send me a readable pic of the bottom of the PSU PCB I may manage to fix it. But maybe there is conception error hat makes it useless to repair, just to see it fail again a while later.. But, according to the SM, just on the Nuo 2.0 mainboard there have been several revisions, so it may be also true for the power board...
Does anyone know or can measure the output voltages of the PSU for Nuo 2.0, 3, 4 or 5 ?
Thanks,
Eum
I try to repair this fly-back type PSU, I diagnosed (identifiable) dead N-MOS and fuse, but there are 3 smd resistors on the bottom that burned and became unreadable.
The support in charge of the brand in France managed to get me the schematics from Ecler, but it didn't include the PSU board. After a while they finally told me that the unit was too old so they don't have the PSU board schems.
I can find replacement PSU board online, but only for the Nuo 3 or 4 or 5, and it seems they ar compatible with each other, as I often find boards compatible with these 3 Nuos.
Funnily, Ecler won't share the service manuals for the newer models either.
My board version is : 11.0864.04, and it has what looks like 2 bipolar outputs.
Each one having a black, yellow and brown cables, and 2 470μF output Rubycon electrolytics, rated for 35V, so maybe for ±18 or 15V outputs.
If someone can send me a readable pic of the bottom of the PSU PCB I may manage to fix it. But maybe there is conception error hat makes it useless to repair, just to see it fail again a while later.. But, according to the SM, just on the Nuo 2.0 mainboard there have been several revisions, so it may be also true for the power board...
Does anyone know or can measure the output voltages of the PSU for Nuo 2.0, 3, 4 or 5 ?
Thanks,
Eum
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