Re: Acer V3-372 Wistron Mihawk 15208-3

Dear All,

My laptop is not start no display no sound.
I swap ram memory same problem
I've seen your problem but I don't have tool to put new firmware for example.
My processor is hot not too much.
Fan is not start anymore only on beginning.
I've attached some picture with measures and interrogation because I have to know why I have such measures or maybe it's normal.
I've take schematic for version 15208-2 maybe there are different name and different components.
Please if you can...

Re: Acer P235H / Gateway FHX2300 Monitor power supply ILPI-129 problems

Dear All,
Please check caps around those UC, also values of resistance.
Check datasheet of UC because sometimes voltage are out of range due to bad components tolerance.
In end refresh solders around UC....

Re: Problem with TX650 Corsair Power Supply

Dear All, I fixed PSU, I've only refresh solders on small board (caps) but about diode I put in same sense than other in board (cathode to ground) but with multimeter in one sense I've got 0.5V and other sense I've got 2.8V thereas normally I have to get only 0.5V in one sense and other infinite. I'll test it with motherboard and graphic card to know his durability.
Thanks for your help.

Re: Problem with TX650 Corsair Power Supply

Thanks for your replies, I confirm that most of caps are ok I've disoldering most of them (big one not cms) and values are ok. Now I am suspected UP3861P and components around it (small board outside main board in picture). but I need way to test it only with multimeter.

Re: Problem with TX650 Corsair Power Supply

Dear Rjarrrpcgp, sorry I am not expert to take picture properly.
Here you are thanks....

Dear All,

Sorry for my english.
I need some help concerning this power supply. It doesn't works anymore, any output voltage.
I put some pictures of power supply I trying to test it most of capacitors tested are ok. It's difficult to test small cms capacitors sometimes my multimeter doesn't display something. I've tested also with power on but impossible to get logical values for example I have alternative voltage in parts of continue voltage.
I've tested most of component I changed a opto-coupler but I don't think it was damaged. As you can see in picture 225300...

Re: New Members - please post your introductions here

Dear All, my name is Fethi I come from France I am new in electronic repairing but I have old background in electronic (HND school knowledge). I have electronic goods out of order like power supply, graphic boards and motherboard that I want to repair it that's why I'm here and will be happy to share my little knowledge in electronic. Thanks.