Question about Sega Game Gear Console

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I need a circuit board diagram for a sega game gear

I would like to know what kind of capacitor that goes on the power board for a sega game gear. The one that i bought on Ebay was dropped and it would not power on . So pulled it apart and put and another power board in it and now it works so looked at the old power board and it was missing a Capcitor. but i don`t know the number of it to get another one to soldier back on to the board. So what i need is a diagram of all the boards in the game gear. Please help in this matter

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  • Cindy62707 Apr 06, 2009

    I would like to try and repair the Game Gears we have. The first problem is no picture when it powers on but it might also not have sound. I need a diagram to figure out which parts I need to be replacing for these problems. I went to but there was no post for this type of problem. (actually there was very little Sega Game Gear related since it is so old). Where else can I look for a diagram?



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The best place for this type of question, by far is . There forums are a godsend for anything videogame repair. Promise!

Posted on Dec 02, 2008


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Related Questions:

1 Answer

Broken Sega Game Gear.No Power,Picture or anything.Battery Acid in the Battery slot(s)Help?

You have to clean the contacts with some rubbing alcohol. Ware safety glasse and use a old tooth brush. If that dose not work then the mother board is fried.

Oct 14, 2014 | Sega Game Gear Console

1 Answer

Why is there no sound on sega game gear

This is usually due to old capacitors that need to be replaced on the sound board. Follow this tutorial to replace them.


Jun 28, 2014 | Sega Game Gear Console

3 Answers

Replaced capacitor on sega game gear for sound but I get a blast of sound in the backdrop I hear whistle noise whats going on. Is it because i used a 220 uf 50 volt capacitor and if so then why am i...

I apologize for not getting back to you sooner on this one, to be honest, im not terribly familiar with replacing capacitors on game gears, however that would appear to be the issue, someone else might be better suited to help with the technicalities on that one. Sounds like Ironfist109 knows what he's talking about. Again, sorry I wasnt any more help =\

Oct 02, 2011 | Sega Game Gear Console

1 Answer

Hey guy i cant see my game gears screen unless i am in a dark roon any idea whats wrong with it

Nice to hear somebody still using this classic game module!
Well, the problem would be the capacitors inside the circuit. Right now, mostly all the capacitors in that game gear would leaking out and deflated its true value. My advice would be to replace all the capacitors in power side of the board. the value of the capacitors must have the same microfarad but the voltage can be increase at 10 volts.
If you have a TV cartridge for that game gear I would sure buy the cartridge

Hope that helps you out!
Thanks for using Fixya!

Dec 17, 2010 | Sega Game Gear Console

1 Answer

I have a sega Game gear which my nephew just found in our attic. No batteries in it, put new batteries in it worked perfectly for about an hour then the screen just went white and lines appear on it now...

Do a search on the net for Game Gear display repair. There is even videos on YouTube that show how to make the repair.

I would suspect it it the capacitors that have failed. The display, and the sound issues are easily repaird by installing new caps. Seek someone who is good at soldering small parts on a circuit board. The cost of the parts should be under $10.
These are common issues with the GG, so if you decide not to have it repaired, there are still those of us out there that would buy your unit to repair.
Good luck.

Mar 31, 2010 | Sega Game Gear Console

2 Answers

Where can i get my game gear repaired???live in california

its very tough to say as the production of this video game is closed and u wont get any spare parts

Feb 25, 2010 | Sega Game Gear Console

1 Answer

How to fix the sound on a sega game gear 2110. everything else is working fine but the the sound is shot.

Hi Jeremy,
This is an easy repair, if you are used to working with a 15 watt solderin iron, and have a little experience with solderin small parts.
The sound board needs new capacitors, it is a common failure. I believe there are 6 of them, and the cost should be under $10.

This repair works well, but the capacitors that are in the display secton can go out too, at a later time. If you get to the oint where you must tilt the display at an angle to view, the caps are probably failing. Again, it is a matter of just replacing the caps.
Here are two videos that detail the repairs.
Good luck!

Feb 20, 2010 | Sega Game Gear Console

1 Answer

Hi, my sega game gear has a very dim screen, what can I do?

A weakness of all Sega manufactured Game Gears is a particular type of electronic component used in various parts of the internal circuitry; the SMD (surface mount) electrolytic capacitor. Many years ago these components were a common cause of camcorder faults. Now, as Game Gears getting to be 15+ years old, they are suffering from the "bad cap's" phenomenon too.
The symptoms of faulty capacitors include:
  • LCD Screen only looks good when viewed at an unnatural angle (anything other than 90 degrees).
  • Bright parts of the picture create 'ghost lines' in the dark parts.
  • Screen looks washed out, dim, and lacking in contrast.
  • Turns itself off (in extreme cases).
  • Problems are alleviated when unit has warmed up a bit.
Further confirmation can be had by opening the unit and examining the board area around the capacitors. Faulty capacitors will often (but not always) leak their corrosive electrolyte onto the surrounding board. This is a clear, oily substance which can may attack the cap's legs and surrounding components, leaving a green corrosion behind.
If one is faulty, the rest won't be far behind. Replaced them all at once!
These capacitors are glued and soldered to the board. To remove one, carefully rock it from side to side with a small pair of pliers until to feel the glue break, then desolder each leg from the PCB. When they're off, take the opportunity to clean up any leaked electrolyte and corrosion. Metho (rubbing alcohol to the Yanks) is good for this.
There are two versions of the Game Gear, the main difference being the main board layout. The later model also combined it's two ASICs (custom chips) into a single IC. There are other board layouts out there, if you have a Game Gear whose capacitor collection doesn't match the table send me a list and I'll update the page. Here is a list of all electro capacitors on the main board.
- 100μ 6.3V
22μ 6.3V
4.7μ 35V
0.47μ 50V
0.47μ 50V
68μ 6.3V
100μ 4V
33μ 6.3V
10μ 6.3V
10μ 6.3V
10μ 6.3V
10μ 6.3V

Audio Amplifier Board
C7 100μ 6.3V
100μ 6.3V
100μ 6.3V
47μ 4V
47μ 4V
Some things to consider when shopping for replacement capacitors:
  • Replacements should have the same capacitance (in μF - micro farad) and the same or higher voltage rating.
  • Standard RB/Radial (both legs poke out from the bottom) electrolytic capacitors are fine.
  • Sub-miniature types are even better.
  • If you cannot find the correct value then connect two small caps in parallel. Tolerance is typically +/- 20% so no need to be too precise. E.g. 47μ // 22μ in place of a 68μ value.
If you find the sound from the internal speaker to be missing or distorted then a faulty C7 (47μ) on the audio board is the likely cause. If there also distorted audio on from the headphone jack then you many need to replace all capacitors on the audio board.
Capacitors on the power supply board are generally reliable, not being of the surface mount type.

Jan 10, 2010 | Sega Game Gear Console

1 Answer

Game gear

Yes, you did good, but you will need to replace the other capacitors on the sound board.

Jul 27, 2008 | Sega Game Gear Console

1 Answer

Sega Game Gear power problems

try replacing some of the capacitors, that is mostly what causes the problems in the gamegear, mine had the same problem.

Feb 07, 2008 | Sega Game Gear Console

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