Question about Yamaha Music
When dismantled, I found that the Voltage Regulator is blown, or missing.
I obtained this device at a bargain price, and thought it might be a good idea repair it.
I need schematic diagram for this device, or label code for missing VR.
Unfortunately, I only have schematics for PSS-560 and PSS-570. If I remember correctly,with the parts side facing up, there should be a parts orientation printed on the circuit board. It will look like 2 black bars side by side with one of the black bars thicker than the other. If you got an exact replacement with the correct pin out the metal piece on the part that the black piece is mounted to with the 3 pins facing down towards the parts side of the circuit board should line put with the black bar lines on the circuit board. I hope this makes sense. Please get back to me. I had one of these keyboards laying around in my parts bin but stripped it because all the keys were broken and as they come in one strip asnd have to be ordered specially, I didn't bother keeping it. I may still have the circuit board somewhere.
Posted on Apr 28, 2009
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Posted on Jan 02, 2017
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