Williams TAF preDCS Sound Board
Video
Summary
Hibler fixes a scratchy Williams TAF preDCS sound board by replacing a failing 10µF tantalum cap at C21.
Chris Hibler walks through a repair of a Williams TAF preDCS sound board suffering from scratchy audio that degraded over time. After replacing ordinary capacitors and TL084 op-amps without fixing it, he identified a failing 10 microfarad tantalum capacitor (C21) as the root cause. He also checked the board's regulator voltages during troubleshooting.
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