i found the heatsink for the 2 power regulators on my crap genesis and the bottom half of the case, but the problem is that the tv out box on the board is toast.
i need the pinouts for the rgb connector on the back of the board, i played russian roulette and got a corrupt picture to display on the screen, but since it didnt have the red blue and green channels on it, it was black and white.
also help on using the serial port on the back of the genesis would help too.
Post by oompa loompa on Jan 26, 2005 15:38:47 GMT -5
i'll just copy+paste a document that i found on the net that describes the video connector
From: email@example.com (Dennis Gale Brown) Newsgroups: rec.games.video.sega
This is an article I wrote last year to post here. I'm posting it again. This is probably not the best way to hook up the Genesis to a monitor but it works. I have no clue what the "new" Genesis is like, so this may or may not work with it.
Here's how I hooked up my Genesis to my NEC Multisync II:
First, I went to Radio Shack and bought the following parts:
274-026 8-pin DIN plug (Genesis end) 276-1427 9 Position D-shell MALE connector 276-1513 Hood for above 278-775 9-conductor wire (sold by the foot; I got 3')
Then I checked out the Genesis Monitor pinout from the FAQ: (looking at port itself)
_1 . 8 . 7 _2 . . . 6 __3 . . 5 ___4 '
(these numbers probably aren't correct but they match my list below!): 1 - Negative Combined Sync 2 - Composite Video 3 - Green 4 - Ground 5 - +5 Volts 6 - Audio 7 - Red 8 - Green
Then I checked out the pinout for the Multisync:
1 2 3 4 5 . . . . . . . . . 6 7 8 9
2 - Sync 3 - Blue (analog) 4 - Green (analog) 5 - Red (analog) 6 - Ground
(again, numbers are probably wrong, and this isn't the full pin-out, but it's enough)
After this, it's just a matter of putting things together. Using the 8-pin DIN connector requires some soldering, but the 9-pin connector I chose can simply have the pins clamped onto the wires.
One note: You may have to bend the pins in the 8-pin connector slightly to make it fit in the Genesis. I had to bend the middle pin down a bit and the two top pins outward. After that, no problem.
Final word: Do this at your own risk. This probably isn't the best way to go about this, but it does work. If your equipment blows up, don't blame me!
BTW, If you have a different monitor, I can't help you. All I can say is that if it works with an Amiga 500/1000/2000, it probably works with the Genesis (similar if not identical scan rates), provided you have the correct pinouts and connectors...
the extension/serial port at the back of some model 1 genesis units uses the same architecture as the joypad ports. you can directly wire a joypad to it (but you'll need the software/game to actually do anything with it). as for all the genesis ports, each has an individual serial port. the baud rates are fixed at 300, 1200, 2400, and 9600 (?) baud, and output ttl logic levels. there's both tx and rx pins, and has a buffer of one byte
if you dont have the 32x cable, you can just grab 8 wires, and directly connect each pinhole to each pinhole. or if your brave enough, you can de-solder the genesis connector, and solder the wires in for a better connection, and do the same with the 32x, but that means you could never remove the 32x from the genesis unless you de-soldered the wires again.