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Old 11-21-2022, 03:42 PM   #1
rtstorm
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Default PS2 PSU no 12V

Hello, I have a PS2 fat console that has no 12V on the power supply board.

Thinks that I checked:
  • Input
  • Fuse
  • 4 rectifier diode
  • all small diodes on board
  • replace the 2 green caps

I have 340V on the transformer's input but 0V on the outside (the DC side).
I have checked the optocoupler and I have 1.3V on the hot side and 0V on the DC side. I remove the octo from the board and it is ok

Board look's pretty simple but cannot figure it out
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Old 11-21-2022, 04:01 PM   #2
stj
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Default Re: PS2 PSU no 12V

replace the small cap near the heatsink - it starts the psu.
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Old 11-21-2022, 04:15 PM   #3
rtstorm
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Default Re: PS2 PSU no 12V

Woow that was fast, thank you it works now.
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Old 11-22-2022, 04:00 PM   #4
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Default Re: PS2 PSU no 12V

You can also read this. https://www.badcaps.net/forum/showthread.php?t=43028
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