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I have a Mitsubishi HS-U56P VCR that has a few blown diodes and caps on the power supply board .... Anyone know of a good source on purchasing schematics?
I do not know for sure, but I think that you will have a big problem finding a schematic. If it is just the power supply, and the components have values you should be able to figure it out. What blew the power supply though, as the main unit may be damaged also.
I do not know for sure, but I think that you will have a big problem finding a schematic. If it is just the power supply, and the components have values you should be able to figure it out. What blew the power supply though, as the main unit may be damaged also.
Electrolytic cap is the guilty component. It burnt the diodes beyond recognition but I'll just estimate a current and go with a common diode. I don't think the external components shorted the supply but I'll measure the loads.
Most VCR's use high freq SMPS these days. Rectifier diodes should be shottky or other fast switching diodes. Normal diodes like 1N4007 will overheat due to the long storage times.
Most VCR's use high freq SMPS these days. Rectifier diodes should be shottky or other fast switching diodes. Normal diodes like 1N4007 will overheat due to the long storage times.
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