Game Gear Scrambled Video Screen Sprites Fix Repair - RetroSix
Вставка
- Опубліковано 7 січ 2022
- See the everyday life of working a retro modding company. Learn hardware design, mods, software, FPGA, LCDs and more.
Discord / discord
Wiki retrosix.wiki
Instagram / retrosixuk
Facebook / retrosixuk
Store www.retrosix.co.uk - Ігри
Another excellent and instructive video. 30 year old hardware subjected to leaking capacitors is likely to have many broken traces and this is the way to diagnose and fix them. Thanks!!
L
Sorry I'm late. This is another excellent troubleshooting video Luke! Thanks for sharing. Great footage!!
this is very useful content for anyone looking to repair a broken game gear, hats off for sharing your advanced knowledge. Also great setup and camera work.
Thanks. Always glad to share knowledge if others benefit from it
Excellent video mate. I finally managed to fix a Game Gear that I swapped the video ram out a few years ago. The problem persisted until now and your video gave me the inspiration to try again. D6 had a bad trace to the asic. Multimeter and continuity check did the trick, still need an oscilloscope though.
Awesome glad it's fixed
really awesome videos, thanks alot!
👏👏nice work
Excellent video thanks 👍🏻 Have you seen the Mathijs Nilwik game gear board? Will you stock them, or make your own version?
Yep seen them. I had plans to do them but probably will work with Mathijs on newer version or just make and open source one. I'm working on GBA board at the moment then will jump to GG
Fantastic, your video are incredibly informative.
I need an osciloscope now...
Thanks. Yep we sell them too ☺️
Brilliant video! I have this issue but no access to a scope, is there a way to test the pins for data with a multimeter? I’m learning all this as I go 😬
Possibly. Multimeter into resistance mode and probe the ASIC pin at one side and the other pin like VRAM pin with the other. Resistance should be very low. If it's above 5 ohm it's likely bad
@@RetroSix thanks for that I’ll check it out, need to fix this stubborn Game Gear, I’ve recapped it and also have a spare VRAM to try too
@@StiffPeak A logic probe could be an alternative to the oscilloscope, for addresses or data lines.
any videos like this or documentation for the 1 chip version? Also my power light blinks on & of & the screen scrambles or it stays black. ( it's a retrosix kit)
What oscilloscope do you use or recommend?
So I put in an v2 lcd mod screen kit and the pictures split and rolls from top to bottom. And I have no idea why. Can you help?
Meaby you create video about check signals in psp lcd, i have one with white screen and i want know how to diagnose this. Thx for the great videos.
Yep if I get a PSP in for repair I'll try and remember to do that
Let me know if i got this right. If the D5 is ok on the ram, wouldn't have been easier to solder A5 there?
Yes it would of. Just didn't think of that
I have the same problem but i dont have this istrument for check if there Is data on the Chips...how i can find the broken trace? Plz help ...
Could this error have been discovered with just a multimeter? Or is that only if there's a broken trace?
No a multimeter would still show continuity
Hi, I have the same display issue but my problem is that, my game gear starts up normally and after 5 to 10 min I will end up with this problem. Will it be more or less the same as this way to troubleshoot or do I have an overheating problem? (I have tried using original battery/power board and the ones I bought from you and even using power brick but same display problem so it should not be a power issue.)
Jump on discord.gg/RetroSix and share video of issue if you can. Video issues can look similar but be totally different causes
Is there something special about the video sram? I've tried 2x HY62256ALJ-10 from a snes and they didn't work. Or I was just unlucky and are both faulty? Or it only works with pseudo sram?
It can be very picky about the speed and refresh rate. Plus on SNES most of those RAM fail too. Best hot swapping from another GG
@@RetroSix Thank you. yes, it works if i use the sram from another game gear, but now I need another sram for the donor console. I will try to replace it with some other brand of sram that i have at home. If it doesn't work, I'll order some pseudo sram from china.
Did you ever manage to find where the trace was broken?
I could do but there wasn't much point in considering its such a short run. It's likely under the video RAM chip
Is it possible I could test the chips with a multimeter? I don't have an Oscilloscope.
Will be very hard to test much except continuity which doesn't always show partly broken traces
@@RetroSix Ok thanks for the quick reply!
My game gear have the same problem of the video but my board is single asic 837-8560 how to fix that?
Jump on discord.gg/RetroSix