Acrobat mission problem

[vsl]

Hello, I need advice on Acrobat Mission pcb.




When turned on only a garbage screen appears. PCB has no visible signs of scratching.
Eproms are ok. I have traced the address and data bus and everything is ok.
The processor comes with 10 Mhz. signal , reset and halt are high state.
Thanks in advance for any tips

 

[Monstermug]

Does the reset line go low and then high on power up? If not then you should check the reset circuit. I assume you probe the main program rams and tested the main program roms? Have you checked the buffers by the CPU?