Print Page - Mega Drive 7-Segment Display Mod

Title: Mega Drive 7-Segment Display Mod
Post by: dadou on February 04, 2011, 06:56:38 AM

here's the schematic for the 7-segment display mod that show you the frequency 50/60 for the Mega Drive

(http://i79.servimg.com/u/f79/15/89/02/41/7-segm10.gif) (http://www.servimg.com/image_preview.php?i=58&u=15890241)

the mod is like this: http://img164.imageshack.us/img164/8823/megamod.jpg (http://img164.imageshack.us/img164/8823/megamod.jpg)

enjoy :)

Title: Re: Mega Drive 7-Segment Display Mod
Post by: albino_vulpix on February 10, 2011, 06:12:53 PM

Cool :)

Title: Re: Mega Drive 7-Segment Display Mod
Post by: dadou on February 13, 2011, 11:32:04 PM

update of the schematic i forgot resistors on the second 7-segment

btw i did the mod on breadboard:

(http://img689.imageshack.us/img689/1313/p1050364l.th.jpg) (http://img689.imageshack.us/i/p1050364l.jpg/)(http://img715.imageshack.us/img715/4820/p1050365b.th.jpg) (http://img715.imageshack.us/i/p1050365b.jpg/)

Title: Re: Mega Drive 7-Segment Display Mod
Post by: albino_vulpix on February 18, 2011, 03:14:53 PM

Just a thought: Is the decoder really necessary? Only difference between 5 and 6 is one segment.

Title: Re: Mega Drive 7-Segment Display Mod
Post by: dadou on February 18, 2011, 10:39:14 PM

you're right! i don't need also the Hex inverter thx you! update of the schematic

Title: Re: Mega Drive 7-Segment Display Mod
Post by: phreak97 on May 11, 2013, 10:29:42 PM

This will work for just about any console, some may need an inverter though

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NFG Forums => Console Mods => Topic started by: dadou on February 04, 2011, 06:56:38 AM