- Joined: 24 Oct 2017
- Posts: 2
- Location: BC, Canada
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Game Gear with a different set of caps?
 Posted: Tue Oct 24, 2017 5:11 am
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I opened my Game Gear to do a cap replacement after it stopped turning on, and the caps are completely different from any of the well-documented board revisions. The replacement cap set does have a few of the necessary ones, tho I've had to order the rest from Mouser.
Does anyone recognise this?
anapan.525lines.moe/837-8560.jpg
SN: B10457413
Model No: HGG 3210
Main - IC BD GG Main 837-8560 (1 ASIC - 315-5535 9241KX700):
c1 47u 35v
c4 10u 25v
c11 10u 25v
c14 10u 25v
c42 10u 25v
c43 22u 50v
c45 4.7u 50v
c47 100u 25v
c49 100u 25v
c54 1u 50v
c55 1u 50v
c68 100u 25v
Power:
c5 22u 35v
c10 100u 25v
c13 820u 6.3v
Audio - ICBD GG Sound 837-7400-01:
c1 100u 25v
c2 100u 25v
c3 100u 25v
c5 47u 35v
c7 47u 35v
I got it on Ebay a few months back - it's exterior is pristine, and has had the screen protector replaced with an aftermarket glass one (I'm gonna remove it and put on one of the big bubble dome plastic ones like I remember).
The day after my GG Everdrive arrived and I was finally going to start Sylvan Tale on hardware it decided to crap out.
It was really cool to play the Megaman 2 Homebrew a bit on it tho.
So what is this? An early board revision from Japan? Did someone recap it with the wrong capacitors, and it worked perfectly for a while anyway?
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- Joined: 29 May 2015
- Posts: 18
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Posted: Sun Oct 29, 2017 4:53 am
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It's been recapped, and quite poorly so unfortunately. I'm surprised it boots with caps half-attached like C1.
You should verify that those are real Rubycons. It looks like some don't have a stamp on top, or maybe that's just the light. You might as well replace any counterfeit caps, and clean all that flux off the PCB.
Also, I can't tell from the pictures, but the power PCB might still have the stock caps.
One good thing is that if those are legitimate Rubycons, they are all very nicely rated (105C and high voltage).
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- Joined: 24 Oct 2017
- Posts: 2
- Location: BC, Canada
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Posted: Sun Oct 29, 2017 12:44 pm
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Edit:
Yeah the guy made a mess of the board. Cap replacement was completely successful and I'm now finally enjoying Sylvan tale again. Thanks again for letting me know that the weird caps were only a bodged replacement job.
Oh hey Smokemonster, thanks for replying. The C1 was unsoldered by me. I had just finished unsoldering and cleaning the board contacts, fluxing them, and laying down some new silver solder for the new cap when I realized the present caps values were janky and I didn't have
an equivalent replacement from the cap replacement kit.
I took the picture immediately after, laying the removed cap on the motherboard for the picture...
They do appear to be real Rubicons on the main board. The power and audio appear to be different and untouched, tho since the replacement cap set includes audio quality replacements, i'm going to replace the entire electrolytic set.
I'm glad to get some reinforcement before dumping the weird valued set for correct valued ones. I jumped the gun and ordered mostly all equivalent replacement janky-valued caps. I will be carefully doing the cap replacement to standard capacitance values. I will report here when it is complete.
G
Tho I've never posted here before, I have often found your conversations to be well thought-out whever Google pointed me to the correct answer.
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