Audio Research VT200 Biasing Schematic ETC.


Since Audio Research Corp. will not provide a PCB schematic for the biasing of my VT200 behemoth I would request anyone with a circuit board scan and/or schematic to come forward. I hesitate to do this with merely their 2 page biasing instructions as I also know any tech, even at ARC, would rely on a detailed image of the printed circuit board, component values, test points and detailed procedure.

Thanks,
John
dischief

Showing 1 response by kentaja

Biasing any of the VT series amps is a snap. The instructions clearly state the procedure and the resistors, 2 per channel as I recall, where the readings are made are on the top of the PCB right under the top cover. No need to dig around inside to find the resistors. The resistors/test points are clearly identified on the board. Can't get much easier than that.

I understand the caution and concern but no need to make a simple procedure difficult.