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+--- Тема: Dreamcast mainboard repair (/thread-2607.html)
Dreamcast mainboard repair - aykiri1 - 15.05.2017 09:19
Hi
i saw usually audio and video problems from mainboard. but now i have several mainboards from another problem
seems short circuit i am not sure (when power on power supply have noise)
i checked much components. no one damaged
any suggestion ?
thanks
RE: Dreamcast mainboard repair - Gillbert - 16.05.2017 23:17
Check PSU voltages (3,3v, 5v and 12v).
Also, you may check if there is a short circuit in one of these vcc rails on motherboard.
There are very few situations where a PSU refuse to work properly because there is no load on 12v rail (e.g: without a GD-ROM inserted).