pixelmischief Posted January 16, 2021 Author Share Posted January 16, 2021 @snarkdluG I know what a PWRGOOD signal is. I just don't know what to do with it in the context of connecting this power supply to my Mega STe. Quote Link to comment Share on other sites More sharing options...
pixelmischief Posted January 16, 2021 Author Share Posted January 16, 2021 So...I just went with "f%&k it" and connected the power supply as close to the schematic as possible. The PWRGOOD is unused and I figure that the missing pin is just...missing. Here's what I got... The system seems to be powering on as I get video output. In color mode, I get a white screen. In mono mode, I get a black screen. This seems to be a known state and it moves me on to the diagnostic cartridge stage. Here ends the power supply thread. I'll pick this back up as a system board troubleshooting thread at such time as I need guidance there. Thanks! Quote Link to comment Share on other sites More sharing options...
snarkdluG Posted January 16, 2021 Share Posted January 16, 2021 PWRGOOD needs to be connected to +5V. It's part of the reset circuit. Quote Link to comment Share on other sites More sharing options...
bfollowell Posted January 16, 2021 Share Posted January 16, 2021 (edited) 1 hour ago, pixelmischief said: So...I just went with "f%&k it" and connected the power supply as close to the schematic as possible. The PWRGOOD is unused and I figure that the missing pin is just...missing. Here's what I got... The system seems to be powering on as I get video output. In color mode, I get a white screen. In mono mode, I get a black screen. This seems to be a known state and it moves me on to the diagnostic cartridge stage. Here ends the power supply thread. I'll pick this back up as a system board troubleshooting thread at such time as I need guidance there. Thanks! Did you download and review the Mega STE PSU technical document I linked to in my post from on December 28? One page 4 it fully details all of the connectors and their pinouts and it shows the missing pin 2, so it should show you what is expected on every pin. I don't believe that I can help you any more than that, but it seems fairly detailed and clear. Edited January 16, 2021 by bfollowell Quote Link to comment Share on other sites More sharing options...
pixelmischief Posted January 17, 2021 Author Share Posted January 17, 2021 One more thing... What's the pro method for splitting a single voltage connection from a power supply to multiple pins/devices? Quote Link to comment Share on other sites More sharing options...
bfollowell Posted January 17, 2021 Share Posted January 17, 2021 I just solder the multiple wires together and cover with heat-shrink tubing. Quote Link to comment Share on other sites More sharing options...
pixelmischief Posted January 17, 2021 Author Share Posted January 17, 2021 22 minutes ago, bfollowell said: I just solder the multiple wires together and cover with heat-shrink tubing. Ok! Thanks! Quote Link to comment Share on other sites More sharing options...
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