Re: Bad DC Offset TL072 Op-amp

Thank you for sharing all of this Syn-fi. Incredible diagnostic skills on display!

I have a DP4+ with the following issues:
'Bad DC offset' warning
Ch. 2 failed test - no signal from input, green LED on
Ch. 3 green LED on, faintly audible noise

I'm really hoping to be able to do a repair, someone has definitely been inside the unit before me and replaced a lot of the caps, though it's hard to tell which exactly. Some work has also been done to tidy and reconnect degraded traces around the analog i/o.
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