Question about FDS and Game Gear

SxsgamingSxsgaming
in Help Wanted!
Hi everyone, I have 2 systems I bought from ebay last year that both have a similar problem.



I have a famicom disk system where the batteries power the unit just fine, but I recently only tried the ac adapter and it doesn't power on at all.



The game gear has the exact opposite problem, the ac adapter port works fine, but batteries won't power the system on at all.



Any idea what the cause might be? Thank you for your time

Comments

  • MobiusstriptechMobiusstriptech
    Has the game gear been recapped? Are you using the original power supply for the disk system?
  • SxsgamingSxsgaming
    The game gear was sold as a recapped unit. The power supply for the FDS that came with it is model HVC-025 AC100V 50/60Hz 9VA 9V 400mA it has a silver sticker under that info in japanese that says to unplug the outlet when not in use, and the cord has a red plug on the end
  • MobiusstriptechMobiusstriptech
    I would recommend opening the game gear to check it. Most of the "recapped" units I have seen get partial recaps or they are done horribly with bad components.



    For the FDS, have you checked to verify that it is outputting the expected amperage and voltage? The adapters fail often enough that it's worth checking the adapter before going inside the system.
  • SxsgamingSxsgaming
    I don't have a multimeter, is there another console that I could safely test that adapter on? managed to get the game gear open, but it wasn't easy, all the screws were way overtightened. thanks again for the help















  • SNESNESCUBE64SNESNESCUBE64
    Originally posted by: Sxsgaming

    I don't have a multimeter, is there another console that I could safely test that adapter on? managed to get the game gear open, but it wasn't easy, all the screws were way overtightened. thanks again for the help



    I use a model 1 sega genesis AC adapter for my disk system if that is what you are refering to in terms of the AC adapter question. The important thing is to keep the voltage and polarity the same. Current can be higher.
  • SxsgamingSxsgaming
    Originally posted by: SNESNESCUBE64

     
    Originally posted by: Sxsgaming



    I don't have a multimeter, is there another console that I could safely test that adapter on? managed to get the game gear open, but it wasn't easy, all the screws were way overtightened. thanks again for the help

     



    I use a model 1 sega genesis AC adapter for my disk system if that is what you are refering to in terms of the AC adapter question. The important thing is to keep the voltage and polarity the same. Current can be higher.





    Okay, so it looks like the ac adapter for the disk system is the problem, it came on immediately with the model 1 genesis adapter plugged into it, thank you Snesnescube
  • SNESNESCUBE64SNESNESCUBE64
    Originally posted by: Sxsgaming

    Originally posted by: SNESNESCUBE64

     
    Originally posted by: Sxsgaming



    I don't have a multimeter, is there another console that I could safely test that adapter on? managed to get the game gear open, but it wasn't easy, all the screws were way overtightened. thanks again for the help

     



    I use a model 1 sega genesis AC adapter for my disk system if that is what you are refering to in terms of the AC adapter question. The important thing is to keep the voltage and polarity the same. Current can be higher.





    Okay, so it looks like the ac adapter for the disk system is the problem, it came on immediately with the model 1 genesis adapter plugged into it, thank you Snesnescube

    No problem! Just stay away from those third party ac adapters, they are pretty shoddy.
  • SxsgamingSxsgaming
    Originally posted by: SNESNESCUBE64

     
    Originally posted by: Sxsgaming

     
    Originally posted by: SNESNESCUBE64

     
    Originally posted by: Sxsgaming



    I don't have a multimeter, is there another console that I could safely test that adapter on? managed to get the game gear open, but it wasn't easy, all the screws were way overtightened. thanks again for the help

     



    I use a model 1 sega genesis AC adapter for my disk system if that is what you are refering to in terms of the AC adapter question. The important thing is to keep the voltage and polarity the same. Current can be higher.





    Okay, so it looks like the ac adapter for the disk system is the problem, it came on immediately with the model 1 genesis adapter plugged into it, thank you Snesnescube



    No problem! Just stay away from those third party ac adapters, they are pretty shoddy.





    I'll just buy an OEM adapter, they're pretty common for the disk system online, and I really don't trust those adapters after it killed a friends NES
  • VanzantVanzant
    Look at the area where the batteries go. Is there ANY kind of blueish buildup? 99% of Gameboys I've come across that won't work with batteries is always the corrosion around the battery springs or base. You can fix this with a steel brush and acetone. You can try this without even taking it apart, but if it don't work you may try removing the connectors to see if the corrosion is under the plastic.
  • SxsgamingSxsgaming
    Originally posted by: Vanzant



    Look at the area where the batteries go. Is there ANY kind of blueish buildup? 99% of Gameboys I've come across that won't work with batteries is always the corrosion around the battery springs or base. You can fix this with a steel brush and acetone. You can try this without even taking it apart, but if it don't work you may try removing the connectors to see if the corrosion is under the plastic.

    Took a closer look at it, and there's no visible corrosion or battery acid buildup in the battery compartment, it looks pretty pristine if anything which is why I'm so confused



     
  • Duke.TogoDuke.Togo
    You can probably fix that bad FDS power supply. Usually the transformer is just fine, it's just that you get a break in the wire somewhere in the cord. Replacing the cord almost always works.
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