MV-LED

MV-LED board. Picture courtesy of [TheArcadeBoneyard].

MV-LED2 board, same components, different size. Picture courtesy of [MVS-Scans].

LED-based credits display board in original MVS cabs. Uses two 7-segment displays to show the player's remaining credits.

Uses CRE401 arrays for inputs.

Pinout, from left to right (pins 1 to 13):

• 5V
• 5V
• Clock
• Digit 1 ABCD
• Digit 2 ABCD
• GND
• GND

Digits are BCD-coded and controlled by registers REG_LEDLATCHES and REG_LEDDATA.

See also MV-ELA for the marquee board details.

MV-LED2 board incomplete schematic.

Connection to the MVS board visible in [page 5 of the schematics]