Pioneer SX 1980 Restoration

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Pioneer SX 1980 Restoration

Postby qguy » Tue May 07, 2013 8:12 pm

I got this unit last April, it was dead, no relay click, no sound no anything

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Operating on the 270 watt per channel beast >:D

Rebuilding the Power Supply Regulator Board, all capacitors and transistors were replaced, a couple of resistors and diodes was also replaced

BEFORE

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AFTER

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Tone (Bass and treble) Board

Before

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AFTER

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Power amp board capacitor replacement

Three capacitors lang per channel. pero todo nervious ko dito, as the Bias diode and output transistors are no longer in production.

Before

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After

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Did some cleaning and most of the dust is gone

Before

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after

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Re: Pioneer SX 1980 Restoration

Postby joejet » Wed May 08, 2013 2:25 pm

Been looking for this particular model. Never had any luck. Really nice piece.
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Re: Pioneer SX 1980 Restoration

Postby endrik35 » Wed May 08, 2013 9:50 pm

One of the best if not the best japanese receiver ever made bar none! My concern will also be the caps availability. Does it run na?
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Re: Pioneer SX 1980 Restoration

Postby qguy » Wed May 08, 2013 10:20 pm

No issues sa capacitors, all of the smaller caps is available at raon. The big ones, if ever they go bad is available several parts store in the US, even ebay sells them.
Still need to buy a few more parts, a few capacitors here and there, still thinking if I should recap the phono board, I dont use a turntable so I might skip this board.

Here some beauty shots after some more cleaning and polishing, wala akong magawa naubusan na ako ng parts hehehe

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endrik35 wrote:One of the best if not the best japanese receiver ever made bar none! My concern will also be the caps availability. Does it run na?
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