Thanks for the reply. Ok I am going for best intuitive guess on what the issue is. System will power up and had been working previously. It will emit 5 beeps on power up and displays a very dim image of the PS3 boot screen with Tekken 6 BR through the HDMI port and then goes blank screen, after say 45 seconds it gives a longer single beep then resets and remains blank screen and repeats single beep and reset.
If I connect a VGA cable to the system it flicks on for half a second and then nothing. There are no lights on the I/O PCB. I have connected 5v to the front power header on it.
I have had the unit apart and it is clean inside. I have a feeling the I/O PCB is gone because both VGA and HDMI ports come off the I/O board and there are no led lights on.
Sounds like you need to source why the I/o is getting no power. Also the 357 does a check as if nothing is connected it won’t boot further . You sure it beeps 5 times and not 3? But if it gives an image sure the system is booting so the RSX chip is working
Yes, it beeps 5 times and not 3. The I/O board is riveted to the front panel making it not possible to inspect the parts side unless I bust or drill the rivets off it. Not sure I want to do that. In any case this system is far too complex to troubleshoot for me. Do you want to investigate it for me?