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Can you explain in detail what 's the problem, and on which channel or channels?
And what's that spot, it seems oxide? Water?
And what's that spot, it seems oxide? Water?
it like ppali say it look like corrosion that you have on the board.
try first to clean the board if it's not help move out the 2 differential transistors. Q66 and this one behind Q51. if the 6V dc at the output is now 0V you know that the problem comes from this 2 or 1 of the input differential transistors (Audison use mostly IMT4 and IMX8 Dual transistors
try first to clean the board if it's not help move out the 2 differential transistors. Q66 and this one behind Q51. if the 6V dc at the output is now 0V you know that the problem comes from this 2 or 1 of the input differential transistors (Audison use mostly IMT4 and IMX8 Dual transistors
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