Ok. I’ve isolated it to a rising voltage on the input to Q4 base. Rising from 0 to .620v where Q4 turns on and mutes.
I gotta say I’m not getting why. Hopefully I’m just a dumbarse and it’s captain obvious that I’m not seeing but I’m not seeing why. No diff to input from the phone sense. It stays at 0v. So it’s obv c86 or D23 or is it Q4? I’ll shotgun replace them tomorrow arvo but would love to understand better. Cheers Gav
I gotta say I’m not getting why. Hopefully I’m just a dumbarse and it’s captain obvious that I’m not seeing but I’m not seeing why. No diff to input from the phone sense. It stays at 0v. So it’s obv c86 or D23 or is it Q4? I’ll shotgun replace them tomorrow arvo but would love to understand better. Cheers Gav
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