![]() ![]() I do not know and also understand how much voltage should go to the other boards.Ī schematic of the WS1 is not in my grasp and it looks bleak if I will find one.Īll over the other boards I find 5V and about 2,6V leaving from the Power amplifier & supply board. replaced 2 transistors (BC549C) that were measuring not correct.īut now I am running into territory I am not familier with…the amplifier side of it.measured the power switching regulator (L4960) Vin 46V and Vout 5V.replaced the big filter caps (6800uF 25v and 2200uF 25v).Transformer AC 230V to 2x ~13V (transformer has center tap).What I did so far is checking the Power amplifier & supply board: Control board with “toggle” ball and switches for start/stop etc.CPU, CMos etc board (flat cable attached to keys prob a board under keys as well but havent checked yet).Battery (3,6V) for memory missing, must have leaked a bit but no real damage. ![]() So I opened the workstation and looked at the boards for any clues.
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