Re: Axle typhoon ax-p400l (400W) PSU Dead
Yeeehaaa!! Guys Great news!!
R15 is indeed a 4.7ohms resistor I double checked and it had gold as the 3rd ring.
Anyway I've removed the 1ohm resistor and the resistance became between VCC and ground to around 395ohms and for the other side I see the small capacitor being charged and then meter stops.
Anyway back to the topic. I tried to turn on the PSU without that 1ohm resistor, guess what IT WORKED!!
Measured 5v standby and it was there and DM311 was getting around 15v to its VCC pin.
Also then I've shorted green and black then measured the rest 5v,3.3v and 12v and all were there.
THANK YOU VERY MUCH GUYS Specially momaka
But still now over. I have few more things to ask from you guys.
Also, I just checked some removed parts when I was doing the early repairs, There is a 100K ohms resistor which I don't remember where it was. Could this come in the place where 1ohms one was? Because I don't feel good to keep a circuit with empty part slots
Once these small issues are fixed I can have a working PSU again
Anyway Thank you very much all of you again for your valuable time,effort and helps. I was in the brink of throwing this away if it wasn't for you guys
Yeeehaaa!! Guys Great news!!
R15 is indeed a 4.7ohms resistor I double checked and it had gold as the 3rd ring.
Anyway I've removed the 1ohm resistor and the resistance became between VCC and ground to around 395ohms and for the other side I see the small capacitor being charged and then meter stops.
Anyway back to the topic. I tried to turn on the PSU without that 1ohm resistor, guess what IT WORKED!!
Measured 5v standby and it was there and DM311 was getting around 15v to its VCC pin.
Also then I've shorted green and black then measured the rest 5v,3.3v and 12v and all were there.
THANK YOU VERY MUCH GUYS Specially momaka
But still now over. I have few more things to ask from you guys.
- When I power on the PSU I can hear a very low noise it's just like the noise when a big capacitor charges but it doesn't stop it is constant.
- When I shorted green and black I get a noticeable hissing sound. So I immediately removed the shorting on black and green not to damage anything.
- After all these I just tried touching the backside of the circuit and under the 3.3v transformer and near the transistors (The ones I tested yesterday) and diodes, it was too hot and I was afraid if I used this any longer something would blow up.
Also, I just checked some removed parts when I was doing the early repairs, There is a 100K ohms resistor which I don't remember where it was. Could this come in the place where 1ohms one was? Because I don't feel good to keep a circuit with empty part slots
Once these small issues are fixed I can have a working PSU again
Anyway Thank you very much all of you again for your valuable time,effort and helps. I was in the brink of throwing this away if it wasn't for you guys
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