Playstation 2 SCPH 30001 - Need the value of a thermistor in the PSU

Hello everyone. New member here!

I recently had problems with my old PS2 (a SCPH 30001 model). After a power outage it stopped working. I opened it and noticed that at the power supply unit it had a burnt thermistor which works as, I guess, a fuse circuit. The problem is that it is so damaged that I cannot read the original value to look for replacement parts. Does anyone here has a 10 screws PS2 PSU around who could tell me the original value? The part in the board is marked TH001. I'm attaching an image of a functioning PSU with the part marked in red so you can see which part I'm talking about. Thanks a lot in advance!

 

I've got a 10 screw PS2 Test unit. No idea how I'd test it though without removing, but I will if you tell me how.

 

No idea either. I managed to find a thermistor which is supposed to have a standard value used in Sony devices; however, the power supply is still not working and I blew another fuse. Nothing else seems burnt at first sight, but I haven't had time to check for possible culprits. I already dedicated too much time from the holidays searching for the thermistor, so I guess I'll have to leave this project on hold till my next vacation period. Thanks a lot, anyways!

 

Perhaps the over-voltage protection has fused. There are two devices that look like zener diodes. When fused by an over-voltage condition, they conduct current in the opposite direction, which will blow the glass fuse.

Removing those devices should cause the PSU to start working again, but will leave the PSU unprotected. @l_oliveira might be able to tell you more about this.

 

Thanks a lot! That seems to indeed be the problem. Some of the zener like devices are conducting in the opposite direction from others when I try testing conductivity. I'll have to check if I can find the parts to replace those so I don't leave the unit unprotected.
Thanks again!