rockeater Posted August 27, 2024 Posted August 27, 2024 I have scored this dead player and it has open circuit primary winding. Uncharacteristically for Sony, diagram lists only names of voltage rails without giving their actual value (or at least I could not find them). If anyone out there has one and a multi-meter, I would be really grateful for the values of all secondaries. I looked for a spare (part number 1-427-997-11 made by TAM in Japan but could not find any anywhere, so I need to order one to be made. Cheers Roman
Addicted to music Posted August 28, 2024 Posted August 28, 2024 Hers one way to do it if you cant find or the secondary is unknown; Follow the secondary winding to the board and usually theres a bridge, filter caps and regulator/s. Look for the markings on the regulators and that will tell you what DC voltage you need to power up. if you do the maths that includes all the diodes x2 in series should give you whats needed for the DC rail. Once you have that figure you need to divide either root 2 or 2X root 2 but dont quote me on that, that should give you the AC equivalent, search the net on how to do this as there are set formulas and examples because i have not done it a while. Maybe someone who has done it can chime in, im still at work!
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