Repair & Schematics
Sega Mega-Tech Arcade
Powering From Bench (Sega Mega-Tech)
1min
The Sega Mega-Tech is powered from the pin headers at the top right.
It has two main rails:- a 12V rail for the sound output, and a 5V rail for the rest of the system.
Power Pinout (Sega Mega-Tech)
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For most testing/diagnostics you can simply power the board from a bench supply on the 5V rail.
A working board pulls around 1.6A to 2A at 5V. Current above this usually means a short or failed components. Common ones to pull huge current are the IO Expanders (CXD1095).
Once 5V is applied you should see red light on the bottom left of board.
Updated 13 Jan 2024
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