Twenty-eight years of design engineering in the broadcasting market designing audio and video products for TV, film, and post-production professionals. Programming from 6502s and 56001 DSPs to multi-core processors and Sharcs, board layout from Bishop Graphics tape to many-layer CAD, TTL to Zynq circuit designs, it's been a wild ride.

Re: Audio system - wrong caps installed at factory?

Reply posted 1 month ago (03/04/2021)
What voltage are you seeing across the similar caps on the other channels? It appears from the circuit that the cap doesn't typically see much voltage across it....
A zener diode is usually used for voltage regulation. All you need is reverse blocking (of 12V), and minimum forward voltage drop (from 5V). A Schottky diode with...
You don't say exactly what you're trying to do. I presume you're trying to raise a logic/programming line to +12V to program an EEPROM.If that's the case, you can...

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