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Pro-Ject Speed Box II

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Failure of my Speed Box II

By gorlando, 10. March 2026, 10:03.
It started malfunctioning. I opened it and saw the 2 Zener Diodes having burned the PCB underneath them. I removed and measured them: both 18V. Unfortunately when I removed them I damaged the PCB. the PCB is very low quality and it is very easy to lift the copper lines. Is there anyone who can provide a detailed picture of the lower side of the PCB? Thank you.

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