Hello. And thanks for the forum.
I have a Technics SX-PR1000 baby grand piano/multitrack synthesizer (over $10K new) that has a main-board problem and I'm not quite ready to say uncle and make the whole piano a boat anchor just yet.
The problem is I get a blue screen and several of the buttons light up sometimes, sometimes not, no sound at all, etc. It changes on power up. Sometimes the main menu will pop up and the buttons (for the synth.) seeem to work, but no sound out of the piano keys. And again, on power-up, sometimes I get just a blue screen and nothing else.
I have researched this extensively. It seems to be a consistent problem with these. They are no longer made and replacement boards do not exist. There is only one guy in the world that claims he can rebuild them, he's in England, but he seems impossible to get a hold of. I'm suspect, but he does have a nice website so I'm sure he's on the up and up. He just doesn't have an email, and he never answers his phone.
My electronic skills aren't tooo bad. I learned old school TV repair back in the day and have always tinkered with things. I suspect this is some kind of power supply problem. It does have a seperate power supply board, and I'm pretty sure this is OK, but what I'm thinking, and correct me if I'm wrong; the board in question, with all its chips and all the brains, takes the main power supply and then regulates and refines it further.
I am suspect of these two transistors (they are only using two legs, the middle prong is not being used "?"), at least I hope its them. But here's the problem, even if it is them, I can't find replacements using that part number which is visible in the photo, and I'm not smart enough to check the properties and find an aftermarket replacement.
I'll try and attach the photo and post this. Any thoughts comments or crazy ideas are all welcome. Thanks.
I have a Technics SX-PR1000 baby grand piano/multitrack synthesizer (over $10K new) that has a main-board problem and I'm not quite ready to say uncle and make the whole piano a boat anchor just yet.
The problem is I get a blue screen and several of the buttons light up sometimes, sometimes not, no sound at all, etc. It changes on power up. Sometimes the main menu will pop up and the buttons (for the synth.) seeem to work, but no sound out of the piano keys. And again, on power-up, sometimes I get just a blue screen and nothing else.
I have researched this extensively. It seems to be a consistent problem with these. They are no longer made and replacement boards do not exist. There is only one guy in the world that claims he can rebuild them, he's in England, but he seems impossible to get a hold of. I'm suspect, but he does have a nice website so I'm sure he's on the up and up. He just doesn't have an email, and he never answers his phone.
My electronic skills aren't tooo bad. I learned old school TV repair back in the day and have always tinkered with things. I suspect this is some kind of power supply problem. It does have a seperate power supply board, and I'm pretty sure this is OK, but what I'm thinking, and correct me if I'm wrong; the board in question, with all its chips and all the brains, takes the main power supply and then regulates and refines it further.
I am suspect of these two transistors (they are only using two legs, the middle prong is not being used "?"), at least I hope its them. But here's the problem, even if it is them, I can't find replacements using that part number which is visible in the photo, and I'm not smart enough to check the properties and find an aftermarket replacement.
I'll try and attach the photo and post this. Any thoughts comments or crazy ideas are all welcome. Thanks.
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