I have a PX 1450 on my bench, and I think I am over my head on this one! Usually I work on guitar amps and this buggah is much more complex than most things I work on.
So, Channel 1 will alternate between functioning (green "Power" LED lit) and not. I have put a 1K signal into the input and it does amplify cleanly, but then cuts out & the power LED goes out. I have done some voltage measurements at various test points while in either working or not working condition, however nothing out of sorts. I have the schematic, but really have no idea which circuit controls this function.
Any advice?
Steve
So, Channel 1 will alternate between functioning (green "Power" LED lit) and not. I have put a 1K signal into the input and it does amplify cleanly, but then cuts out & the power LED goes out. I have done some voltage measurements at various test points while in either working or not working condition, however nothing out of sorts. I have the schematic, but really have no idea which circuit controls this function.
Any advice?
Steve
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