Re: [CAD_CAM_EDM_DRO] 5 volts in Geckos G201?????
Posted by
JanRwl@A...
on 2003-01-19 13:31:19 UTC
In a message dated 1/18/2003 3:59:24 PM Central Standard Time,
ralaco@... writes:
This PROBABLY means you are measuring a pin on your game-port with a
typically-high-Z DVM, but the pin you so-measure is NOT a "5 VDC supply" but
a HIGH 74HCnn logic-output pin!
Try putting a 1K resistor across your DVM test-leads, and probe again. When
you find a pin that reads 5 VDC ±0.25, that is likely a +5 VDC Supply pin.
[Non-text portions of this message have been removed]
ralaco@... writes:
> I got 5 volts before I connect it to the Gecko, but once I connect the lineIf not, > What could be the cause?<<
> in the Gecko The voltage drops to 1.743 volts.
>
> Is that ok?<< NO!
>
This PROBABLY means you are measuring a pin on your game-port with a
typically-high-Z DVM, but the pin you so-measure is NOT a "5 VDC supply" but
a HIGH 74HCnn logic-output pin!
Try putting a 1K resistor across your DVM test-leads, and probe again. When
you find a pin that reads 5 VDC ±0.25, that is likely a +5 VDC Supply pin.
[Non-text portions of this message have been removed]
Discussion Thread
ralaco <ralaco@y...
2003-01-18 13:58:45 UTC
5 volts in Geckos G201?????
Tim Goldstein
2003-01-18 14:06:06 UTC
RE: [CAD_CAM_EDM_DRO] 5 volts in Geckos G201?????
Mariss Freimanis <mariss92705@y...
2003-01-18 14:25:05 UTC
Re: 5 volts in Geckos G201?????
ralaco <ralaco@y...
2003-01-18 14:40:54 UTC
Re: 5 volts in Geckos G201?????
ralaco <ralaco@y...
2003-01-18 14:47:15 UTC
Re: 5 volts in Geckos G201?????
Art
2003-01-18 14:57:01 UTC
Re: [CAD_CAM_EDM_DRO] Re: 5 volts in Geckos G201?????
Russ Waters
2003-01-18 14:57:07 UTC
Re: [CAD_CAM_EDM_DRO] Re: 5 volts in Geckos G201?????
Mariss Freimanis <mariss92705@y...
2003-01-18 15:09:38 UTC
Re: 5 volts in Geckos G201?????
Mariss Freimanis <mariss92705@y...
2003-01-18 15:11:59 UTC
Re: 5 volts in Geckos G201?????
ralaco <ralaco@y...
2003-01-18 15:12:48 UTC
Re: 5 volts in Geckos G201?????
turbulatordude <davemucha@j...
2003-01-18 15:19:50 UTC
Re: 5 volts in Geckos G201?????
ralaco <ralaco@y...
2003-01-18 15:20:39 UTC
Re: 5 volts in Geckos G201?????
Tim Goldstein
2003-01-18 15:31:27 UTC
RE: [CAD_CAM_EDM_DRO] Re: 5 volts in Geckos G201?????
Alan Marconett KM6VV
2003-01-18 15:35:09 UTC
Re: [CAD_CAM_EDM_DRO] 5 volts in Geckos G201?????
ralaco <ralaco@y...
2003-01-18 17:25:36 UTC
Re: 5 volts in Geckos G201????? to MARISS
Mariss Freimanis <mariss92705@y...
2003-01-18 18:19:06 UTC
Re: 5 volts in Geckos G201????? to MARISS
ralaco <ralaco@y...
2003-01-18 19:11:35 UTC
Re: 5 volts in Geckos G201????? to MARISS
JanRwl@A...
2003-01-19 13:31:19 UTC
Re: [CAD_CAM_EDM_DRO] 5 volts in Geckos G201?????