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I installed a duo2se mod chip into a v7 ps2 around 2 months ago and everything worked fine, until recently...
Everytime I turn the ps2 on, the fan does not go on with it, and never goes on. So after about 2 minutes of playing the ps2 turns off and the reset button led blinks red, I assume this is due to the ps2 overheating protection it uses.
Is there a way I can test the fan to see if it is still good? Will buying a new fan solve the problem?
Thx all for your help!
Check fuse PS5 (0,7A).
The switching off and blinking LED are indeed some kind of overheat protection.
Ok thx, and if the fuse is fine is there anything else I should look into?
Check PS2 and PS7 as well.
If they are OK then try to measure if there is any voltage on the place you plug the fan and/or connect the fan to some seperate power supply and see if it runs.
ok, I still haven't checked the PS5 (0,7A) fuse , but I have a quick question.
Would it be ok to run the fan from a 12v connection spot on the power source, such as this one, http://www.eight-four.com/systems/ps2mod1u.jpg if I used a resister? I know the fan is 5v, so if I could use a resister what OHM should I go with?
I was just curious about this, I'm not saying I am for surely going to try it, unless of course it is a last result.
Using a resistor will only drop the current not the voltage, not sure how the fan would like this. If you have a 5 volt source in your shed like a power supply or something connect this to your fan and check the fan actually works, if so then problem on board somewhere.Quote:
Originally Posted by PimpDawg
I won't recommend that.
If you really want to use that point, you better use a voltage regulator IC like a 7805.
Better check the fuse first.
I had the same kind of thing, in my case the powerwire from the fan was sandwiched between the case and the metal plate. The wire made a short circuit with the plate. The result was a blown fuse and a broken wire.
I also had a short on the fan, the fuse and a resistor blew, the fan is 12v but if you wire it strait to 12v it will sound like a hairdryer. I basically wired a normal size 0.7a fuse and the correct resistor in with wires and it worked fine... You could always just wire the resistor inbetween the fan and the 12v but if anything blows you will probabaly have to replace something else as well then.
It makes a difference whether you wire the resistor in series or parallel. However, adding resistance like that is what I call african-engineering. If you have some decent heat shrink tubing, cut the fan wires in the middle. Check the resistance of the fan. Next, turn on the ps2 and check the voltage from the other side of the cut you made. This would be my next step if the fuses were good. Of course, I know next to nothing about the ps2. Its just generalized advice.
You can lower the voltage to the fan with a simple voltage divider circuit. Just make sure you don't add too much current. You'd better know Ohm's law.