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Pioneer SX990 schematic required to troubleshoot power supply to front panel alumination.

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  • honkytonkin7 Mar 12, 2009

    I would also like to see a Pioneer SX-990 Service Manual to repair the Power Amp Section.

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I have the circuit diagrams and operating/service manual if you still need a copy. My receiver just smoked the transformer today. Hate to see her die, I purchased it in Vietnam in 1970.

You can contact me at DEBoito@aol.com

Posted on Mar 14, 2009

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My pioneer dvd player model DV-383-S has no power but the fuse is still right and no displaying on the front lcd also


If you have power at the outlet and the fuse is not blown, then most likely you have a blown component in the power supply for the unit. Without a schematic, it would be hard to isolate it to a single component. Take a good look for any damaged components or solder points, and then decide if you want to attempt to repair what you find.

The other choice is to take it to an electronics repair facility.

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Pioneer SX990


I just scored an SX990 in the original styrofoam packing case with a full manual, spec sheets & all at a thrift store yesterday. It looks mint, especially for something ca 1969-70. I'd be happy to make a copy of the manual for you if you haven't been able to find one yet.
Jonathan

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pioneer is not replacing the boards anymore.
check on ebay.co.uk
i did sold so many parts from this model.
thanks

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