SYF SEGA Game Gear mainboard kit 315-5535 v2.0 (single ASIC)

UPDATE 10/22/25: NOW IN STOCK!

Product summary:

• This is a brand new replacement SEGA Game Gear mainboard kit, reverse-engineered with all new components!
• Use this kit to replace your original SEGA Game Gear mainboard if it has been damaged beyond repair by old leaky capacitors!
• This mainboard model is ONLY compatible with "VA1" SEGA Game Gear consoles (single ASIC model)
• ASIC models 315-5535 and 315-5682 supported - User selectable on mainboard!
• Revised v2.0 mainboard model for improved ease of installation - *CURRENTLY A PROTOTYPE REVISION!*

Included components:

• SYF GG 315-5535/315-5682 v2.0 replacement mainboard
• 2x VA0/VA1 Tyco AMP CT style power board and sound board wire harnesses
  
• 1x 3mm bi-color diffused LED for power indicator
  
• 1x 32.2160 MHz crystal
  
• 1x 5-pin potentiometer for brightness adjustment
  
• 2x large Phillips screws (not pictured)
  
• 4x small Phillips screws (not pictured)

NOT included / You MUST harvest or purchase:

• "IC1" - Original Game Gear single ASIC (Harvest from original console)
• Original Game Gear cartridge slot connector (Harvest from original console)
• Original expansion/EXT connector (Harvest from original console)
• New set of 3.7v LiPo batteries (Purchase new; Specs: 3.7V LiPo, size 104050, JST PH 2.0mm connector)

* SOUND BOARD, POWER BOARD, GGFM MODULE, SPEAKERS, AND RIBBON ADAPTERS SOLD SEPARATELY!

Compatible aftermarket display kits:

• BennVenn GGHD display kit (Purchase HERE!) = CONFIRMED (adapter ribbon required - Purchase HERE!)
  
• BennVenn IPS display kit = CONFIRMED (adapter ribbon required)
  
• RetroSix CleanScreen v3.x display kits = CONFIRMED (adapter ribbon required)
  
• Hispeedido display kit = CONFIRMED (adapter ribbon required)
  
• NOTE: Other aftermarket display kits may or may not have been tested yet, so compatibility is not guaranteed!

Additional features:

• New 4-layer PCB design
• User selectable 315-5535 or 315-5682 single ASIC support
• Toggle switch and pads for PSG / GGFM audio mixing (single ASIC model only!)
• RetroSix Cleanslot FFC connector
• Improved clock oscillator circuit
  
• 30-pin FFC connector with all LCD and button I/O
  
• Additional test pads added to mainboard
  
• Experimental J2 jumper added for NTSC/PAL selection

NOTICES:

• ADVANCED SOLDERING AND ELECTRONICS SKILLS ARE REQUIRED FOR INSTALLATION OF THIS KIT!
• This is a HOBBY ELECTRONICS KIT and is sold as-is with no warranty!  Installation is done at your own risk, and we are NOT responsible any damage resulting from mishandled electronics or mishandled parts during installation or otherwise!
• This kit is NOT compatible with the original Game Gear display, and an aftermarket display kit MUST be used! (List of compatible display kits found above)
• Not all aftermarket display kit and ASIC combinations have been tested, so it is recommended to use a "BennVenn GGHD" display kit - Purchase HERE!
• Per above, the original SEGA ASIC (microchip), cartridge slot connector, and expansion/EXT connector are NOT included, and they must be harvested by the installer from the original console PCB hardware.
• Per above, LiPo batteries are NOT included with this kit and MUST be sourced by the installer - Specs: 3.7V LiPo, size 104050, with JST PH 2.0mm connector