Fuji-Man Posted April 5, 2022 Share Posted April 5, 2022 (edited) I have an 800xl with strange situation. This machine has no peripherals attached. With first power on, the machine make its SIO noise and then goes to self-test. After pressing reset, the same SIO noise then BASIC READY prompt appears. Any cartridge put in before power up works (Dig Dug, ASM Editor, Sparta X). The machine seems to be functioning normally after reset. Any of the chips should I swap out or test? FujiMan Edited April 5, 2022 by Fuji-Man Add external cart info Quote Link to comment Share on other sites More sharing options...
reifsnyderb Posted April 5, 2022 Share Posted April 5, 2022 I'd try re-seating the chips first. Quote Link to comment Share on other sites More sharing options...
_The Doctor__ Posted February 10, 2023 Share Posted February 10, 2023 OS ROM, BASIC ROM, and PIA, if socketed, deoxit clean pins straightened slightly in, make sure orientation correct and reseat. Quote Link to comment Share on other sites More sharing options...
+bob1200xl Posted February 12, 2023 Share Posted February 12, 2023 Try U19 and the capacitor going to pin 11 of U19. Bob 1 Quote Link to comment Share on other sites More sharing options...
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