Nintendo Space firebird won't boot up - no 5v/12v

PYJAMAGROOVE

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Hi,
So I got that beutiful cocktail cab with even oryginal instructions inside still intact. There was power cord missing so i've fitted a new one. Monitor boots up but the game don't. On the PS Board I got +24v, -5v - but no +5v and +12V.

Board was a little smoked but all the components are in good shape.

There is 2 heatsinks - one with T a1012 and A78M24 was super hot so I've changed them and now it's not hot anymore.
Thing is on the A78M24 I got 12V out but on T A1012 there is 29V in and 29V out....normal?

On the other heatsink there is again T A1012 and 5FWJ - i got no current in or out on both of them....


Maby someone had that problem and can advice. The game looks great so i have to make it work! Thanks for any response.
 
ITS ALIVE! This machine was waiting to be run again for over 20 years. It was 100% complete and oryginal. Only thing missing was 5V....! Great feeling. Now to clean it nice and off to my living room!
 
Great. The machine was working with no issues. Today I've left it turned on and when I got back the image was frozen. Cabinet was pretty warm. Now, it win't boot up correctly. Some sound and occasionally a frozen high score screen. Is it fried? Ive checked the PCB and it looks OK.... I've tried to adjust the PS, but it changes nothing. Do you guys have any idea what can it be?
 
Is the switcher new? If not, try a different one. I've had a switcher go back where the voltages were dead on 100%, yet it the game freaked out. I think it was putting out noise.
 
Yes, the PS is new. It was working great. I still get healthy 5v on the board. Problems started when I left the machine turned on longer and the game froze due to the overheat I think.
 
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