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Cgs synth

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Re: CGS59 sequencer/programmer troubleshooting?

2012-01-16 by ch1nard

> As i mentioned earlier in the thread this is the old style boards (non RoHS), Just wondering at this point if there is a component value that might be incorrect on all 8 stage boards.
>

okay, had an even closer look and i noticed that H was only going up to 6.7v when pressing the button so i figured this might have something to do with resistor values.
I went back over the boards and i noticed a discrepency between the silkscreen rev A and the picture of the rev b boards on the CGS site.
The row of resistors closest to the LED and diode on my board are (in order of closest to farthest (47k,47k,470k,820r,680r) and the CGS site with the revB boards (47k,150k,470k,820r,680r)

Now to further complicate things i was following the values listed on the website, BUT i got the 47k and 150k REVERSED which probably explains the voltage drop.
My question here is, Which should i follow for these REV A (non RoHS) boards. 47k, 47k, or 47k, 150k?

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