This video shows a method of testing Commodore 64 custom PLA chip without the C64 Super Zaxxon cartridge, using a NAND gate chip 74LS00 that is turned into an SR-Latch circuit.

Links:

Commodore 64 PLA chip replacement:
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BASIC EPROM fix:
[ Ссылка ]

MindFlareRetro channel:
[ Ссылка ]

Video from MindFlareRetro's channel with presentation of Francois Leveille:
[ Ссылка ]

Music: Nihilore - The Author Never Dies
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