Hey guys
I have a complete MKII board. It's the big model, with the expansion board and 4Mb EPROMs. It also has the sound board and connecting cables. Anyway, ever since I got this, it has been difficult to turn on. Sometimes after removing/reseating the battery, reseating the EPROMs it would work, but now it does not do anything. I connect it, one of the LEDs on the big board (it has 2 LEDs) will turn on, it will stay on forever. The other LED will not turn on at all. The board does the same with or without the sound board. I do not know if there's anything on the screen, because I use it with a gonbes8200 vga converter, which will not display picture unless the board feeds it complete nice image. I do not have an RGB monitor to test.
Any idea what can I do to fix this? any tests that I can do to get better information? What do LEDs on the big board mean?
Thanks for any help guys.
I have a complete MKII board. It's the big model, with the expansion board and 4Mb EPROMs. It also has the sound board and connecting cables. Anyway, ever since I got this, it has been difficult to turn on. Sometimes after removing/reseating the battery, reseating the EPROMs it would work, but now it does not do anything. I connect it, one of the LEDs on the big board (it has 2 LEDs) will turn on, it will stay on forever. The other LED will not turn on at all. The board does the same with or without the sound board. I do not know if there's anything on the screen, because I use it with a gonbes8200 vga converter, which will not display picture unless the board feeds it complete nice image. I do not have an RGB monitor to test.
Any idea what can I do to fix this? any tests that I can do to get better information? What do LEDs on the big board mean?
Thanks for any help guys.