View attachment 38707 Hello
I've got a Technics SX-PR902C digital piano that will not power ON, only the RED LED lights up, when the ON button is pressed, but the display won't.It quit in the middle of a show.
I did not find a Service Manual online for it yet, I'm still searching. The SX-PR902C and SX-PR602M share the same User Manual. I know it's not he same piano, but I found a Service Manual for the SX-PR602M here:
https://elektrotanya.com/technics_sx-pr602_sx-pr602m.pdf/download.html
So far I checked the fuse, it was OK, then the transformer, input 110V AC OK, then I checked the 3 output AC wires the blue, black, blue (see photo). Between each black and blue, DMM measures 38V AC.
I don't see any fried components, although I noticed these 2 giant caps with the tops bulged (see photo), but I'm not sure if that is bulging or not, maybe that's how they normally look like.
What should I do next?
![IMG_0104.JPG IMG_0104.JPG](https://makerv2.webteractive.co/forums/data/attachments/37/37152-0cd7abc5d87e79cf8b642264f75457b8.jpg)
I've got a Technics SX-PR902C digital piano that will not power ON, only the RED LED lights up, when the ON button is pressed, but the display won't.It quit in the middle of a show.
I did not find a Service Manual online for it yet, I'm still searching. The SX-PR902C and SX-PR602M share the same User Manual. I know it's not he same piano, but I found a Service Manual for the SX-PR602M here:
https://elektrotanya.com/technics_sx-pr602_sx-pr602m.pdf/download.html
So far I checked the fuse, it was OK, then the transformer, input 110V AC OK, then I checked the 3 output AC wires the blue, black, blue (see photo). Between each black and blue, DMM measures 38V AC.
I don't see any fried components, although I noticed these 2 giant caps with the tops bulged (see photo), but I'm not sure if that is bulging or not, maybe that's how they normally look like.
What should I do next?
![IMG_0100.JPG IMG_0100.JPG](https://makerv2.webteractive.co/forums/data/attachments/37/37147-a6a0160400ffd1d82afedda3276b46f7.jpg)
![IMG_0101.JPG IMG_0101.JPG](https://makerv2.webteractive.co/forums/data/attachments/37/37148-940aed62e20d9804a555b6c11cdb2606.jpg)
![IMG_0102.JPG IMG_0102.JPG](https://makerv2.webteractive.co/forums/data/attachments/37/37149-8cdc0172828da1a1572950128f86dd40.jpg)
![IMG_0106.JPG IMG_0106.JPG](https://makerv2.webteractive.co/forums/data/attachments/37/37151-6f3f5f4b615646152521303d038d0dfb.jpg)
![IMG_0104.JPG IMG_0104.JPG](https://makerv2.webteractive.co/forums/data/attachments/37/37152-0cd7abc5d87e79cf8b642264f75457b8.jpg)
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