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

[Cross]

ok for starters please for give any bad typing i had some drinks tonight.

So i picked up a Sega CD model 2 but no matter what i do or try the damn thing will NOT turn on! I made sure to clean slot well i opened the system up and used some caned air and got all the dust out of it. After 1-2 maybe 3 hours of playing with the power cord and slotting and unslotting i gave up and now i'm hoping someone here can help me out!

[lopaka1998]

Hi Everyone!

I've been reading here for a while and finally decided to make an account... Hi to all.

I had a question about my non-TMSS High Definiton Graphics Genesis Model 1. Just recently (last 4 days) I've noticed a change in the audio quality. Most of the audio is fine but there are certain sounds that sound "grainy" or "distorted". It sounded normal a few days ago so this is a recent change. It appears to be focused on higher pitch sounds - like the sound when you get a ring in sonic 1-3. Other games (other than sonic) seem to have the same problems. The system is all original. I tried replacing the composite av cord with a generic replacement but that did not fix the problem. Also the transformer (original) is providing 12.68VDC. Things like the sonic 3 intro sound weird, etc... Every once in a while I'll get one ring and it sounds "normal" - but only here and there - and then it sounds weird again.

I was thinking this might be caused by the electrolytic capacitors drying up. What do you guys think? Otherwise this system runs fine (other than the rainbowing which I think is normal for this type of system).

I'm up for any advise to try before replacing all of the capacitors. Also any recommendations for best quality caps? I don't like to buy junk. Thanks for any and all advice.

[Drakon]

Screw rf, get a composite video cable and see if that fixes it.

I have a genesis model 1 that I pulled out of the closet and trying to get started again but I keep getting a rolling screen with thick black and grey lines. I am using the original RF box and power supply cord. This issue occurred when I tried to start it up out of the closet a few days ago and I have since tried cleaning the cartridge with isopropyl and the slot with fine sandpaper but the issue is still occurring. I have an NES that I started up and since that was working fine I tried the NES RF box on the sega but the issue remained. The games are loaded and starting up behind the rolling pic and lines. Any suggestions on the best way to resolve this issue? All help is greatly appreciated.

Cross: Check the fuse. I've been told most non powering up sega cds are because of a blown fuse. I revived a dead pc engine by replacing the blown fuse. There should be a thread or two here that point to where the fuse is (I'm too lazy to dig it up).

ok for starters please for give any bad typing i had some drinks tonight.

So i picked up a Sega CD model 2 but no matter what i do or try the damn thing will NOT turn on! I made sure to clean slot well i opened the system up and used some caned air and got all the dust out of it. After 1-2 maybe 3 hours of playing with the power cord and slotting and unslotting i gave up and now i'm hoping someone here can help me out!

Caps can certainly cause "off" sounds and buzzing. The av famicom upgrade kits I use there's one 10 uf cap that will make certain instruments in some games have buzzing audio when the cap goes. If you can capture the audio directly from your system and post it here from youtube or something that would really help give us an idea of what you're faced with. I've never encountered a genesis with off sounding audio personally. Did you also try both channels separately? Did you try the audio from the headphone jack instead of from the av port?

Hi Everyone!

I've been reading here for a while and finally decided to make an account... Hi to all.

I had a question about my non-TMSS High Definiton Graphics Genesis Model 1. Just recently (last 4 days) I've noticed a change in the audio quality. Most of the audio is fine but there are certain sounds that sound "grainy" or "distorted". It sounded normal a few days ago so this is a recent change. It appears to be focused on higher pitch sounds - like the sound when you get a ring in sonic 1-3. Other games (other than sonic) seem to have the same problems. The system is all original. I tried replacing the composite av cord with a generic replacement but that did not fix the problem. Also the transformer (original) is providing 12.68VDC. Things like the sonic 3 intro sound weird, etc... Every once in a while I'll get one ring and it sounds "normal" - but only here and there - and then it sounds weird again.

I was thinking this might be caused by the electrolytic capacitors drying up. What do you guys think? Otherwise this system runs fine (other than the rainbowing which I think is normal for this type of system).

I'm up for any advise to try before replacing all of the capacitors. Also any recommendations for best quality caps? I don't like to buy junk. Thanks for any and all advice.

[copper20]

I just bought a master system model 1 yesterday, and the first controller port is acting a little weird. Sometimes I when I push up on the controller, it doesn't register on my game.

Here's what I tried:

1. I tried other controllers, and the same thing happens.
2. Then I checked the pins to make sure they weren't bent, and they weren't.
3. Then I opened it and checked for bad solder joints, and there's no bad solder joints.

In order to get the up control to register, I have to wiggle the controller plug up and down a little to get it to work. I was going to take it back but the store that sold me it doesn't take any returns or refunds on consoles. I don't know how to solder either, but I know someone who can.

What's wrong with it? I really need help.

[adam]

Here's 2 I've been dying to ask:

1. Does anyone know if Rainbow Islands Extra is locked to 60hz systems?

2. Why do games (even PAL games) run slower when using a Datel universal adapter?

Thanks

[Solkia]

I'm working on a donor cart for Mega Everdrive, But I don't have the right size torx head. What size will I need?

[Drakon]

Uhm my security bit set I got (I assume that's what you want) was just something advertised as being able to open nes, snes and genesis stuff (2 bits in total). And that it does. Also having some sort of sticker remover is useful.

I'm working on a donor cart for Mega Everdrive, But I don't have the right size torx head. What size will I need?

[jinxmitchell]

Hi all. I've been reading here in the tech section and I'm pretty impressed with the knowledge based of the members here compared to other forums and sites I've visited. I recently bought a Sega lot that included a Sega CD, Saturn, 3 Genesis 1, and 4 Genesis 2. I just got the cables in today and tested everything but the Genesis 2's and two of the Gen 1's had issues. One only shows a black screen, and the other doesn't power on at all. This is using the same new cables that worked in the third system.

The system that doesn't have power is the "stinker" that is described in the "how to tell which version SG you have" thread. I'm not sure which one the no video one is, but it's not a HD one.

I also have a SNES that makes a buzzing noise instead of game audio.

All systems are using A/V cables, and none of them seem to get along with my LCD TV as they show wavy lines and at least a slight buzzing noise. I'm getting a CRT tv this weekend to see if there will be a difference on this front.

Thanks for any help!

Edit: Fixed the system with no power. Just had to solder the connection for the power input plug.

Opened the no video system and found what I think is an oddity, but I've never worked with this board before so maybe someone can confirm:

DSCN1699v2.JPG

[STONEDSTONER]

Hi i have a question about the AC adaptor for Genesis 32x

it came with U.S(110v) AC adaptor (for Genesis 2 & 3) output is DC 10v 850mA

I want to use a replacement Pal/NZ AC adaptor , just wondering if DC 9v 850mA would be ok with Gen 32x? as i cant even find a 10v

Ive read elsewhere it should be fine, but ive also read the 32x is very fussy with voltage and 9v may blow the fuse

help would be much appreciated thanks

[Drakon]

My 32x is running from a genesis 2 brick which is rated 10v 850 ma. The fuse won't blow if there's less amps.

Hi i have a question about the AC adaptor for Genesis 32x

it came with U.S(110v) AC adaptor (for Genesis 2 & 3) output is DC 10v 850mA

I want to use a replacement Pal/NZ AC adaptor , just wondering if DC 9v 850mA would be ok with Gen 32x? as i cant even find a 10v

Ive read elsewhere it should be fine, but ive also read the 32x is very fussy with voltage and 9v may blow the fuse

help would be much appreciated thanks

[STONEDSTONER]

My 32x is running from a genesis 2 brick which is rated 10v 850 ma. The fuse won't blow if there's less amps.

Thanks for info, ill try 9v 850mA

[Drakon]

Err...I mean less volts haha

Thanks for info, ill try 9v 850mA

[Solkia]

http://www.epforums.org/showthread.p...e-Genesis-Cart Does this actually work?

[villahed94]

Yes, because you're replicating (by using the EPROM) the original game data, and original Genesis carts had all the pins, meaning full compatability with all ROMs. The only downside is that you must have a programmer (which is expensive) and erase your EPROM each time you want to flash a new game onto it.

[Solkia]

cool

I wonder if someone would be willing to burn a chip for me