Noelio Posted September 21, 2009 Share Posted September 21, 2009 (edited) Title should read BAD TOS... LOL! Hi friends, Just got a nice deal on a non working Falcon. I've only tried the TV out (no vga adapter yet.) When I power it up I get: -Black / White rolling bars of static. -No Drive light. -No power light. -Fan does turn on and spin fine. -Drive does its seek and spin routine. From your experiences, am I most likely looking at a bad TOS rom (4.04) or a bad power supply? As far as I've gathered online a toasted TOS rom could cause this. Thoughts? Edited September 21, 2009 by Noelio Quote Link to comment Share on other sites More sharing options...
atarian63 Posted September 21, 2009 Share Posted September 21, 2009 Title should read BAD TOS... LOL! Hi friends, Just got a nice deal on a non working Falcon. I've only tried the TV out (no vga adapter yet.) When I power it up I get: -Black / White rolling bars of static. -No Drive light. -No power light. -Fan does turn on and spin fine. -Drive does its seek and spin routine. From your experiences, am I most likely looking at a bad TOS rom (4.04) or a bad power supply? As far as I've gathered online a toasted TOS rom could cause this. Thoughts? check your power supply voltages Quote Link to comment Share on other sites More sharing options...
Noelio Posted September 22, 2009 Author Share Posted September 22, 2009 Title should read BAD TOS... LOL! check your power supply voltages Thanks for the reply. Will do! I should have thought about it more before I posted. Little did I realize there's multiple voltages at work. Will post with the result. Quote Link to comment Share on other sites More sharing options...
Noelio Posted October 3, 2009 Author Share Posted October 3, 2009 I'm getting: 11 or so volts on the blue (when plugged into the board) 5 - 7 when unplugged from the board 5 volts on the red Seems fine. Next step is the TOS chip I take it. Quote Link to comment Share on other sites More sharing options...
+poobah Posted October 3, 2009 Share Posted October 3, 2009 After power, I'd start checking the clocks Quote Link to comment Share on other sites More sharing options...
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