this post was submitted on 01 Feb 2026
17 points (100.0% liked)

RetroGaming

28719 readers
185 users here now

Vintage gaming community.

Rules:

  1. Be kind.
  2. No spam, AI slop, or soliciting for money.
  3. No racism or other bigotry allowed.
  4. Obviously nothing illegal.

If you see these please report them.

founded 2 years ago
MODERATORS
Xylinna@lemmy.world
Tenthrow@lemmy.world
gts@lemmy.world
17
Sega Genesis "HD Graphics" Edition issue (sh.itjust.works)
submitted 3 months ago by bridgeenjoyer@sh.itjust.works to c/retrogaming@lemmy.world
4 comments fedilink hide all child comments
 

Hey ya'll,

So I have a HD graphics text gen 1 Genesis. Since I got it, it powered on fine but just flashes white and then black screen. I did get past the license screen once or twice in a game, but it froze up after that. I took it apart and cleaned and inspected it best I could, cleaned and bent the cart reader pins out to make sure that was fixed, and still get the same issue.

I have another genesis so I don't really need this one, but I would really like to know what else to do to fix it. Seems most people online just say "buy another one" because they are cheap. I may just sell it, but I'd like to figure out the issue. I'm decent at small electronics and have most of the needed tools (multimeter, good solder iron, o scope). If i know how to diagnose, I can do it. Ive fixed a few amps and built a few effect pedals here and there, calibrated my tape machines, but if I don't know what to do first i'm kind of stuck.

Has anyone else had this issue or are there some chips I need to look at testing?

top 4 comments
sorted by: hot top controversial new old
[–] TerraRoot@sh.itjust.works 2 points 3 months ago (1 children)

Any of the chips getting very hot when it's running?

[–] bridgeenjoyer@sh.itjust.works 2 points 3 months ago

Ill put my heat gun on ii...pretty sure just the voltage regulator gets warm like they all do..

[–] f4f4f4f4f4f4f4f4@sopuli.xyz 2 points 3 months ago (1 children)

Lots of good info here, I see Genesis 1 service manual and schematics. Service manual even has a PCB diagnostic flowchart.

[–] bridgeenjoyer@sh.itjust.works 1 points 3 months ago

Great site, thanks!