skylab
New member
Hi guys, I've a sega model 2A board whit Dead or Alive game, when I power it I get a garbage for video, no sound. Only led 11 lights up in the cpu board. In the video board all four leds light up for about 1 second when I power up the board, then turn off.
Power supply voltage is 5v.
I've checked all connections, all pins of rom chips, everything seems ok.
The garbage is a bit different every time I power up the board. Test button and service button don't work.
Power supply voltage is 5v.
I've checked all connections, all pins of rom chips, everything seems ok.
The garbage is a bit different every time I power up the board. Test button and service button don't work.