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Peter Russell <peter.russell@...>
turned out to be C50 in the audio pre amp.
replaced it with a leaded electrolytic.
A little tip - for those who need it!
If you know that you are going to replace a smd capacitor or resistor, I find the easiest way to remove them is to take a pair of small cutters and cut the component in half.
Then, with a pair of tweezers, it's easy to unsolder the two ends.
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