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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

Posted on Mar 14, 2009


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