SYF Mainboard 315-5535 / 315-5682 / 315-5378 v2.0 - PROTOTYPE

SYF Mainboard 315-5535 / 315-5682 v2.0 - PROTOTYPE
This is a brand-new manufactured replacement mainboard compatible with your Sega Game Gear, using all new components. This board makes it possible to repair your VA1 / VA4 / VA5 / Majesco model Game Gear which suffers from PCB damage caused by leaking capacitors or batteries.

SYF Mainboard 315-5378 v2.0 - PROTOTYPE
This is a brand-new manufactured replacement mainboard compatible with your Sega Game Gear, using all new components. This board makes it possible to repair your VA0 model Game Gear which suffers from PCB damage caused by leaking capacitors or batteries.
 
The board has been reverse engineered from a Sega Game Gear. Since I am not able to source new ASIC chips, cartridge connectors and expansion port connections, you need to supply these parts from one of your broken boards. TV-tuner is not supported - this is limited due to the current available LCD kits.

Installation is done at your own risk. I do not take responsibility for damage resulting from installation. Experienced soldering skill is needed – do no buy this kit if you do not know how to solder fine pitch SMD chips.

This is a prototype board - please understand this when you buy it. You will help me to improve and test the board. In return I am offering for free; Soundboard, Powerboard and LCD ribbon and dedicated installation support (if needed)

Manual and more information can be found here: Game Gear Mainboard 315-5378 – SYF
Manual and more information can be found here: Game Gear Mainboard 315-5535 – SYF

Before installation, please join the BennVenn Discord via https://discord.gg/f8AbftjEMs and look for the #game-gear-mainboard-kit channel!

Recommended tools are:

• Soldering iron with 1-1.5mm chisel or gull-wing tip
• Hot air rework station
• Desoldering gun or pump
• Flux
• IPA
• Multimeter and/or oscilloscope

Assembled kit includes:

• All SMD parts assembled on mainboard - except for ASIC
• 5-pin potentiometer for brightness level adjustment
• 3mm 2-color LED red with diffused lens
• 32.2160MHz crystal
• VA0/VA1 Tyco AMP CT style power and sound board wire harness
• LCD ribbon for either BennVenn or RetroSix Cleanscreen
• SYF Stereo soundboard
• SYF LiPo powerboard
• Various SMD resistors and capacitors

Additional features over v1.7 model:

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