Changing the voltage of the GBA link port

Discussion in 'GBA - Hardware, Devices and Utilities' started by redfalcon, Nov 28, 2012.

  1. redfalcon
    OP

    redfalcon GBATemp Member

    Member
    250
    22
    Feb 19, 2009
    Gambia, The
    The original GBA has a link port on top where the voltage changes depending whether a GBA game (3.3v) or GB/C game (5v) is inserted. I use one of the old wormlights to illuminate the screen, but since the voltage with GBA games is lower, the light is also notably weaker than with GB/C games. Is there any (hardware-)hack to change that? So that it always gets powered with 5v?
     
  2. wiggatron

    wiggatron Advanced Member

    Newcomer
    70
    15
    Nov 27, 2012
    United States
    O-hi-O
    Well, the GBA uses a little mechanical switch to let it know if a GB/GBC or GBA game is inserted. Besides the voltage variation, I'm not sure what that switch does for the console. You could try and defeats it and see what happens, but I'm not sure what other affects it may have :/
     
    redfalcon likes this.
  3. FAST6191

    FAST6191 Techromancer

    pip Reporter
    23,696
    9,564
    Nov 21, 2005
    United Kingdom
    redfalcon likes this.
  4. redfalcon
    OP

    redfalcon GBATemp Member

    Member
    250
    22
    Feb 19, 2009
    Gambia, The
    Indeed, the light is brighter, but it won't boot GBA games that way. I filled the small gap on the cartridge with a piece of paper and tape, but it boots into GBC mode then. Would have been too easy :(

    That's what I considered too, but I can't find a way to open the wormlight without breaking the casing open :/

    Oh well, seems I have to use my DSL for playing in dim light.
     
  5. wiggatron

    wiggatron Advanced Member

    Newcomer
    70
    15
    Nov 27, 2012
    United States
    O-hi-O
    Well, without try to sound like I'm just selling my stuff, I might suggest a backlight kit. Will beat the pants off any worm or front light. It is a lot more expensive though and takes a good amount of work to install.