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If those voltages are not present, check the voltage across the large cap – it should be 1. None of the buttons on the bottom work except the power on and off.
Can you tell from the data sheet if D2 and D1 are shorted? Page 1 of 2. If it is missing, check the fuse, etc. Measuring the primary side of the transformer.
AO4606 MOSFET. Datasheet pdf. Equivalent
One end to the circuit while the other to the dafasheet pin. When looking for shorts on teh inverter drivers, remember that the inverter transformer is present. Anyway this one has the good brand of Samxon for all but the big guy and that is a Dstasheet M but they rarly go bad from what I know. Originally Posted by Welchs You really think the burnt spots are just due to bad solder joints?
If you have 5V and 12V, check the logic board. I did reflow the transformer connections.
It did not work out, still have the same issue. Datashet it is is four buttons and an LED. Since I am a one trick pony on these I orderd a set of caps and replaced them hoping for the best.
Using what you guys said i started probing around. Thanks guys and thanks BAd-caps forum.
Should ALL of the inputs on the primary side be shorted? I am not an electronics wiz, for this issue I am more of a one trick poney. It will since the presence of a video signal when I switch the note book PC I use for testing from ak4606 LCD to external and back but that is all it does other than make a nice large square desk light.
So i will have to look a little deeper. A good method for checking a monitor with black screen and no power LED is to check the power supply outputs; typically 5V and 12V dataaheet this can vary. Show 40 post s from this thread on one page. The only button that works is the power and all the others do not give me any menu nothing. However with the video signal from my notebook PC the screen is solid bright white for as long as I care to look at it.
I have fixed a lot of monitors by replacing the caps on the PS card but this will be my first with processor card issues. It is usually capacitively coupled.
I replaced all the caps on the board with new ones Could it be the transformer? There appear to be 6 pins on what i would call the primary side.
The rest of the buttons produce no set up or adjustment windows and I can see no video from my PC at all.
I guess I will replace the four uf x 25v, two uf x 25v and the one uf x 25v and see where that takes me. Thanks for the help, I did add a datasyeet pics of the board in case you can see something I do not. If the bulb light and didn’t goes off suspect a shorted winding and if the light goes off, the winding is ok.
I also measured the diode as shown in the data sheet.