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Different resistor values in VR circuit V3.0

Posted: Tue Mar 24, 2015 6:42 am
by yaygasm
Hi everybody, newbie here, just trying to troubleshoot a non functioning VR circuit. I've noticed that some of the resistor values listed here http://www.megamanual.com/ms2/vradjust.htm in this picture...
Image
...are different than listed in the assembly guide (http://www.megamanual.com/ms2/V3assemble.htm). Specifically,
- R44/R45/R46/R54 are 1k in the schematic, 10k in the assembly guide
- R53/R48 are 100k in the schematic, 10k in the assembly guide

Just wondering if there's anybody out there that can shed some insight on this.

Re: Different resistor values in VR circuit V3.0

Posted: Wed Mar 25, 2015 1:03 pm
by Bernard Fife
y,

You might want to read the notes below the same diagram here: http://www.megamanual.com/ms2/pcb.htm

Lance.

Re: Different resistor values in VR circuit V3.0

Posted: Wed Mar 25, 2015 4:20 pm
by trakkies
Dunno why that schematic hasn't been altered. All the V3 boards (that I've seen) for many a year are supplied with the later values.

Image

Re: Different resistor values in VR circuit V3.0

Posted: Thu Mar 26, 2015 4:00 am
by yaygasm
Lance wrote:You might want to read the notes below the same diagram here: http://www.megamanual.com/ms2/pcb.htm
Thanks, there's a lot of good information on that page.
trakkies wrote:Dunno why that schematic hasn't been altered. All the V3 boards (that I've seen) for many a year are supplied with the later values.
Okay, if that's the case I guess I'll look for problems elsewhere, thanks.