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Mac IIcx repair. Video signal ok but no mouse arrow even with rominator

Hi.
I'm trying to repair a mac II cx.
I have already replaced all the capacitors and checked some apparently damaged tracks. Now the Mac turns on first with the startup chime and immediately after with the crash chime. It's not a ram problem. The mouse arrow does not appear and everything remains blocked. I thought there was a problem with the roms and before desoldering and replacing them, I wanted to try using the rominator.
The result was the same. Startup chime but then no mouse arrow.
Power up works both from the keyboard and from the rear button.
any ideas?
Thanks
Fabio
 
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