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Re: CGS13 Gated Comparator troubleshooting advice . .

2011-06-22 by sasami@hotkey.net.au

The wiring all sounds right.

Ken



>
>
>On Jun 22, 2011, at 12:46 AM, sasami@... wrote:
>
>> >Have you accidentally added the Comp Out into the mixer? It should
>> not be
>> connected.
>>
>> Ken
>>
>No, it doesn't look like it.
>
>On Jun 22, 2011, at 12:47 AM, sasami@... wrote:
>
>> Or is pot 8 properly grounded?
>>
>The ground wire comes off of pot #8 (non cw leg) and goes to the pcb
>ground shown in the diagram.
>
>I wasn't sure where to attach the ground wire from the COMP OUT LED
>(on the diagram it says "to LED RETURN") - so I attached it to the
>ground that has the "wire strap" on the pcb (near the Q8 out).
>
>For the MANUAL LOOP switch, I followed the diagram and wired one side
>of the switch to "Gate 8 Out" - then put a 15k resistor on the center
>leg that goes to pin 2 of the LM393 (I used an NTE 943M instead of the
>LM393, that's all the shop had in stock) - then the last leg of the
>switch went to the same "+VE" on the pcb as the LOOP ENABLE Switch.
>
>
>- Adam
>
_______________________________________________________________________
Ken Stone sasami@... otherunicorn@...
Modular Synth PCBs for sale <http://www.cgs.synth.net/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>

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