Greatn the small box :) From the echematic I see a few mistakes on the layout : - Switch 2 & 3 should be inverted - The 220p in IC3.1 loop should be moved to C19/D19 (in serie with the 22k, not connected directly to pin 2) - R14/R15 should be connected to IC4.2, they go nowhere on the layout (D25,26) I didn't go further for the moment ;-)
I see 2 more error.First error,470k resistor(IC2) must be after 22k resistor,not after 2 pin (IC2).I mean 470k resistor must be between Gain1 and Switch2 .Second error too same but with red leds D1 and D2,they too must be after 22k resistor(pin 2 IC 2) according to the scheme.
You only error fixed with 470k resistor, but there is still one more error with red leds D1 and D2,they must be after resistor 22K (2 pin IC2).I already talked about this earlier.Look in the schemati cattentively.
Greatn the small box :)
ReplyDeleteFrom the echematic I see a few mistakes on the layout :
- Switch 2 & 3 should be inverted
- The 220p in IC3.1 loop should be moved to C19/D19 (in serie with the 22k, not connected directly to pin 2)
- R14/R15 should be connected to IC4.2, they go nowhere on the layout (D25,26)
I didn't go further for the moment ;-)
Thanks! :-)
DeleteChanged the layout but had to add a column and R15 had to be a pesky three row resistor...
Ok I see just 1 more error : R21 going from vol 2 to VREF_B is connected in serie after R22 instead of being connected to Vol 2.
DeleteWell spotted. Looks ok now?
DeleteI think so, thanks
DeleteIf I build it I'll try to re-arrange things a bit to keep it 125b friendly (23 max for 1 of the 2 dimensions)
No need to change anything. Board dimensions is 28x23, not 27x24.
DeleteNow, go build it.;-)
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DeleteHow on earth did I imagine you modified it from 23 to 24 rows ???
DeleteSo yes it's good to build, maybe next month ;-)
Hi fuzzhead. I did it works and is verified.Regards.
ReplyDeleteThanks! It is now tagged.
DeleteThis comment has been removed by the author.
ReplyDeleteI see 2 more error.First error,470k resistor(IC2) must be after 22k resistor,not after 2 pin (IC2).I mean 470k resistor must be between Gain1 and Switch2 .Second error too same but with red leds D1 and D2,they too must be after 22k resistor(pin 2 IC 2) according to the scheme.
ReplyDeleteThanks for spotting in that. Layout is updated and I had to shift a few parts around to a void a standing resistor.
DeleteYou only error fixed with 470k resistor, but there is still one more error with red leds D1 and D2,they must be after resistor 22K (2 pin IC2).I already talked about this earlier.Look in the schemati cattentively.
DeleteLayout is updated, looks legit now?
DeleteLooks correct now good job,but now i need to create this to verified
DeleteThis comment has been removed by the author.
ReplyDeleteTag it! Sounds great! 👍
ReplyDeleteThanks Ben! Tagged. :-)
Delete