Pioneer MPC-GX1 Mac Clone - Power Supply & Audio Board Cap List

Mac84

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Hi all,

When I got my Pioneer MPC-GX1 (video here), I noticed the system needed to stay plugged in for a bit before powering on. Well, sadly today I went to plug mine in and it wasn't happy. So I ripped open the power supply and drew a quick map of the capacitors on the PSU and audio amplifier board. I also took some photos, hopefully this'll be helpful to anyone who has one of these clones!

Attached is a two-page PDF of this capacitor map and a bunch of photos of the PSU and audio amp. board.

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  • Pioneer_PSU_1.jpg
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  • Pioneer_Audio_Board_2.jpg
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  • Pioneer_PSU_Case_Closed.jpg
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  • Pioneer_PSU_Case_Open.jpg
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  • Pioneer Mac Clone PSU & Audio Cap Map v1.0 - Steve Mac84.pdf
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Mac84

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Well, I went ahead and ordered about $50 worth of capacitors to see if I can recap the power supply. I went ahead and ordered caps for the audio board in case it needs it too. Below is a diagram (PDF) I made to replace my sketch above (which had a few empty values).

Once I confirm the ordered caps work and fit, I'll post my Mouser car and list of caps used. (y)

Attached is a PDF, embedded is a JPEG of v1.0 of this diagram.

Pioneer Mac Clone PSU and Audio Recapping Diagram - Mac84 v1.0.jpg
 

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  • Pioneer Mac Clone PSU and Audio Recapping Diagram - Mac84 v1.0.pdf
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