Ask general Genesis/MD/Sega CD/32X questions here (for new members)

[TmEE]

I did not need anything on the Y line in my MD2 when I tried the S-vid mod.
RGB to YUV converter is something US people can use to get the best quality on their equipment which lacks RGB in but has component input.

[thepspgamer]

hey, i recently managed to pick up a model 1 megadrive for super cheap, and, as it was so cheap, im having some trouble with it, it wont boot up..at all, even with a new game inside

i have attached some pictures of my problem and i hope someone can help me fix it, or just give me some advice

thanks

(Basicly, when i put the cart inside and flick the switch, the LED comes on meaning its being powered, but as seen in the pictures, all i get is this weird white screen thing and a brief hissing noice...)

any idea's people, i would love to get this thing working for some good ol retro gaming

[Reaperman]

I was kind of toying of the idea of this combined with an scart cable--but that'd be like $40 and I don't think it's too hard to get the genesis to spit its rgb out some jacks I throw on the side along with stereo sound. Valid plan?
I'm pretty sure the component cables are where my projector takes its rgb in, so all I should have to do is build myself 5 rca jacks on the side and I've got the best possible video with no little circuits at all required.

that s-video issue with vertical lines in solid color areas would bug the hell out of me after a while.

[TmEE]

@thepspgamer - this MD1 seems to have something REALLY wrong

@reaperman - you have a MD1, its easy to get all signals out of the system as all connectors are standard. If you can solder, you can buy some cable, a DIN8U plug, 6 RCA connectors (R,G,B,Sync/Composite, AudioLeft, AudioRight) and a TRS (heaphone connector) for sound output from MD (the DIN does mono only).

[omp]

I did not need anything on the Y line in my MD2 when I tried the S-vid mod.

Yea apparently the MD2 (some) has the better video encoder chip, don't need the amp at all.

PSPGamer, I see that your tv is tuned to channel "10". It could simply be your RF module is stuffed. My MD1 through it's RF module (before I ripped the bastard out to make room for my AV and S-video out) had picture but the snow storm SSSSSSHHHHHHHH sound. once I made the switch to AV, there was no more issue. Just a thought. Oh BTW the hole left behind for the RF is a perfect size for the S-video socket!

[TmEE]

When people learn RF is illegal :P

[thepspgamer]

@thepspgamer - this MD1 seems to have something REALLY wrong

do you have any idea what it could be? im using an RF cable btw

do you think it would be a good idea to upload some pics pf the MD1's board, see if you can spot a problem?

thanks for the help so far

[TmEE]

I learned you used RF, I would say you need to throw the RF cable away and get a AV cable :P This is a good recommendation BTW
I guess doing manual tuning on TV had no effect ?
Since its a MD1, if you plug in headphones, do you get any sound ?

Board pics are always nice

[thepspgamer]

all i get is a loud buzzing sound through the phones socket when its on

il post some board pics later

[Afcs46]

The same happens to me when I've used a pirate AC adaptor? Is your AC adapter Sega branded?

[omp]

When I had the RF unit in (and had picture but the SSSSHHHH sound) the sound from the headphones was not 100% clear. It was better but it had an ever so slight SSSHHH to it). Since turfing the RF unit out and running the stereo sound from the headphone jack and I haven't heard anything crazy since. But saying that I haven't physically plugged headphones in either.

[thepspgamer]

The same happens to me when I've used a pirate AC adaptor? Is your AC adapter Sega branded?

no, the megadrive i bought was just the console, im using my NES rf and power cables

[omp]

Whoops! Thats the problem then SNES/NES use AC adaptors (9vac 1.3amp from memory). You need a DC Adaptor, the mega drive says it needs 10VDC 1.2amp but I use a 9VDC 1.3amp switchmode power pack. As a bit of jolly interesting I rigged my multimeter up to see what the current draw is of Mega Drive 1 and it is 610mA at 9VDC. The master system2 I have, for a bit more jolly interesting, draws 430mA.

A MD1 power supply has a 5.5mm plug (OD) 2.1mm (ID) and has the centre pin as negative.

[Afcs46]

thepspgamer, try to use an original Sega genesis adaptor and post the results.

[thepspgamer]

i would if i had one, as i said before the megadrive just come as the console and 2 controllers, il go searching for 1 on ebay though, as i do want to get this thing working