thomas3120 Posted August 28, 2021 Share Posted August 28, 2021 (edited) Just installed The UAV mod setting jumpers for Atari 800XL. Getting On/Off flashes of color. Swapped out Gtia, Antic & Sally with no change. This is in S-video, When I try composite I get some crazy vertical lines but screen (READY) is visable Also the RF Modulator has been removed. Any help would be great t IMG_2956.MOV Edited August 28, 2021 by thomas3120 Quote Link to comment Share on other sites More sharing options...
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