PS2 SCPH-50001 has no power light but it's not the PSU or PS001

[venomleggs]

Hey all,

I've got kind of a strange situation going on with my PS2 (SCPH-50001, GH-023 board). It all started when I accidentally bumped the power/eject ribbon cable with the console powered on (I had just cleaned and re-lubed the disc drive so I left the top shell off of the console for testing). I quickly shut it down in an attempt to prevent damage. After this, the console no longer had the red standby light on when plugged in.

After some research I found that the SMD fuse PS001 might have popped (which it did), so I replaced it as well as the power/eject ribbon cable. Still didn't fix it. I made sure to test all the SMD fuses, which were okay. Just to be thorough, I tested the PSU, which was outputting 12v as it should.

I then wanted to make sure that the power/eject board itself was getting power, which led me to discover that the connector pins that should be receiving 3.3v were only receiving 0.5v. Several other points on the motherboard that should be receiving 3.3v are only getting 0.5v also. I suspected that IC403 (voltage regulator) might have gone bad, so I replaced it, but I still have the same issue.

This is starting to become an obsession so I figured I'd see if anyone on here has some helpful advice before I lose it hahaha.

Thanks,
-Venomleggs

 

[Micolay]

Hey all,

I've got kind of a strange situation going on with my PS2 (SCPH-50001, GH-023 board). It all started when I accidentally bumped the power/eject ribbon cable with the console powered on (I had just cleaned and re-lubed the disc drive so I left the top shell off of the console for testing). I quickly shut it down in an attempt to prevent damage. After this, the console no longer had the red standby light on when plugged in.

After some research I found that the SMD fuse PS001 might have popped (which it did), so I replaced it as well as the power/eject ribbon cable. Still didn't fix it. I made sure to test all the SMD fuses, which were okay. Just to be thorough, I tested the PSU, which was outputting 12v as it should.

I then wanted to make sure that the power/eject board itself was getting power, which led me to discover that the connector pins that should be receiving 3.3v were only receiving 0.5v. Several other points on the motherboard that should be receiving 3.3v are only getting 0.5v also. I suspected that IC403 (voltage regulator) might have gone bad, so I replaced it, but I still have the same issue.

This is starting to become an obsession so I figured I'd see if anyone on here has some helpful advice before I lose it hahaha.

Thanks,
-Venomleggs

Were you eventually able to fix it, cause I think I have a similar problem. Too bad no one seems to be interested in this topic that was expecting to see the river of reply comments on what the issue could be and how to fix it

 

[venomleggs]

Were you eventually able to fix it, cause I think I have a similar problem. Too bad no one seems to be interested in this topic that was expecting to see the river of reply comments on what the issue could be and how to fix it

Sadly no, I couldn't be bothered to continue diagnosing it so I just bought a used working motherboard

 

[c0m11]

Hi, I made the same mistake, and now my PS2 Fat has no power. After checking the fuses, I found that the PS1 fuse is blown, and I'm planning to replace it. This is my first time working with SMD fuses, so I'm unsure about the correct value. Could someone help me identify the right fuse? Would a 1A 32V fuse, a 2A 64V fuse, or a 2A 32V fuse be suitable? I believe the voltage rating should be fine as long as it's equal to or higher than the original, but the amperage and size should match. I'm hoping the PS2 will power on after replacing the fuse.