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NEC PC Engine/TurboGrafx-16 Games/Consoles => Console Repair/Mod Center => Topic started by: Shear_xear on 02/10/2016, 09:59 PM

Title: Where to draw 5v on the Turbografx 16
Post by: Shear_xear on 02/10/2016, 09:59 PM
Hi everyone.  I have installed my Obey chip, and need to draw an additional 5v for my component chip.  I used the Hu Card pin for the Obey chip... Where else are good points to get 5v from the Turbografx?  Thanks a lot!  Mike Shear
Title: Re: Where to draw 5v on the Turbografx 16
Post by: mickcris on 02/10/2016, 10:02 PM
you can get it right from the 7805 output pin.
Title: Re: Where to draw 5v on the Turbografx 16
Post by: Shear_xear on 02/10/2016, 10:27 PM
Okay, that is easy enough.  Thanks!
Title: Re: Where to draw 5v on the Turbografx 16
Post by: wilykat on 02/12/2016, 11:37 AM
Make sure you get the right side.  When facing the 7805 with the visible number and the pins pointing down, the left pin is unregulated input and will likely fry your chip. Middle pin is ground and your chip will just not work at all. Right pin is regulated 5v and it is the one you want.

https://www.sparkfun.com/datasheets/Components/LM7805.pdf (https://www.sparkfun.com/datasheets/Components/LM7805.pdf) the first page has picture with pinout if you need to print it and have it by your system and soldering iron.
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