These 2 chips are for the sound board of collectable full sized arcade pinball machines made by Data East. 

All revision 3 level games (Star Wars, Lethal Weapon 3, Rocky & Bullwinkle). 

No Sound at All - PAL Chips.

Data East / Sega sound boards use specialized PAL program chips at U19 and U20. 

If there is no sound, and all the sound voltages are present (+5, -5, +12, -12 volts), suspect these two PAL chips next. 

These are custom programmed chips. 

I can provide ROMS and EPROMS for all pinball machines. 

I also carry pinball security chips, 5101, 6116, 6264, 6800, 6810, 6821, 6502, 6532, and many more hard to find I.C.’s for old pinball machines. 

NO matter what the shipping calculator says, I will combine shipping. Up to 8 chips will ship for the price of one auction.

These do fail from time to time. If your game does not work it may be these. 

The software on these chips is not owned by me but is made available for free from the manufacturer to the public. 

This auction is for the chips and the service of burning the images onto the chips.