Defender - Williams - Green ROM Error

braedel

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Donor 7 years: 2018, 2020-2025
Joined
Jan 15, 2018
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Brighton, Michigan
I am getting the 2 right LEDs on the ROM board coming on when the game starts (Not sure if this is normal).
I have the same system running with Red ROMS (Different Board) with no issues.

This is the older style ROM Board and the only one I have with Green ROMS. I purchased this board un-tested and have done the following prior to powering

*Replaced 40pin Ribbon Cable
*Verified all ROMS - Had to replace 2 of them (2,11) - Have re-checked them since
*Checked all address lines from 40 pin to each ROM and Outputs back to PIA - All good
*Replaced electrolytic capacitor on ROM Board
*Verified 5vdc

I put the board in my upright and it plays and seems to work fine, I have never seen any information on the LEDS coming on outside of running the tests.

Thanks,
Brad
 
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