Taito Space Invaders 3-layer board stack (Colour)

This 3-layer board stack is typically used in tabletop games and can be found in both monochrome and colour versions. Colour video output requires the optional components on the CPU and Sound boards to have been populated and the boards are all slightly longer than their monochrome only counterparts. There are a number of different variations of the Sound/IO/Shifter board which are all interchangable.
AA017756
ROM Board
AA017756 ROM Board Front
This board is functionally identical to AA017756A but ROM jumpering for S4 is different.
SLICE Project
AA017757
CPU Board
AA017757 CPU Board Front

Requires optional components to be populated for colour output.

Schematics
SLICE Project
CV070001
Sound, IO and Shifter Board (25S10)
CV070001 Sound Board Front
Requires optional components to be populated for colour output.
CV070005
Sound, IO and Shifter Board (74151)
CV070005 Sound Board Front

Requires optional components to be populated for colour output.

SLICE Project
CV070005A
Sound, IO and Shifter Board (74151)
CV070005A Sound Board Front
Requires optional components to be populated for colour output.
SLICE Project
CV070005 (Alt Layout)
Sound, IO and Shifter Board (74151)
CV070005 (Alternate Layout) Sound Board Front

This board has a different layout to the other board marked CV070005/CVN00002.

CV070020
Sound, IO and Shifter Board (MB14241)
CV070020 Sound Board Front
When running Space Invaders CV ROMs the MB14241 custom shifter chip is not required and may not have been populated from the factory.
AA017751
Power Supply Board
AA017751 PSU Board Front
Schematics
AAO17766
Credit Board
AA017766 Credit Board Front

This board allows operators to set the coins per credit multiplier for games.

Schematics

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