Hi 
I am trying to repair an old Sony j30 PSU, which I have no information about or schematics.
I am not an expert in electronics, but I would appreciate some help.
I recapped the whole PSU and still no output, though I get about 15-24v on the power transistors on the primary side. The MC33262 controller gets about 15v.
I get no power on the secondary side.
By the shottcky diode, where I think I have a short, as I replaced the component that seemed to be a diode (white like those connected to the power transistors with no marking on it, or the board itself). but it didn't change anything.
Any idea how to proceed?
Thank you in advance for any help
Joe
I am trying to repair an old Sony j30 PSU, which I have no information about or schematics.
I am not an expert in electronics, but I would appreciate some help.
I recapped the whole PSU and still no output, though I get about 15-24v on the power transistors on the primary side. The MC33262 controller gets about 15v.
I get no power on the secondary side.
By the shottcky diode, where I think I have a short, as I replaced the component that seemed to be a diode (white like those connected to the power transistors with no marking on it, or the board itself). but it didn't change anything.
Any idea how to proceed?
Thank you in advance for any help
Joe
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