AO 30V Complementary MOSFET General Description Product Summary The AO uses advanced trench technology N-Channel P-Channel MOSFETs to provide excellent RDS(ON) and low gate VDS= 30V V charge. N-Channel：VDS=30V ID=6A RDS(ON) ＜ 30mΩ (VGS = 10V) RDS(ON) ＜ 42mΩ. AO datasheet, AO circuit, AO data sheet: AOSMD – Complementary Enhancement Mode Field Effect Transistor,alldatasheet, datasheet. AO Complementary Enhancement Mode Field Effect Transistor. AO Complementary Details, datasheet, quote on part number: AO
All it is is four buttons and an LED. Originally Posted by Welchs Right now, when i power it up I have a KDS P monitor which does not work. How did you know the part number is AO? I replaced this cap. Originally Posted by Welchs SO this leads me to ask the question Datassheet the bulb light and didn’t goes off suspect a shorted winding and if the light goes off, the winding is ok.
Thanks guys and thanks BAd-caps forum. So i guess the chips are ok.
I found one cap “near” the big filter cap which was “bad”. 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. That datashert has at least 3 different voltages, produced by bucking regulators. I replaced all the caps on the board with new ones Using what you guys said i started probing around. Anyway this one has the good brand of Samxon for all but the big guy and that is a KM M but they rarly go bad from what I know.
If it is missing, check the fuse, etc. It is usually capacitively coupled. 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. Thanks for the help and sorry for taking so long and the incomplete info.
The rest of the buttons produce no set up or adjustment windows and I can see no video from my PC at all. I have a P that powers up fine. Originally Dafasheet by chomot Post I looked into the fuse and connector advise and could not find any issues. You really think the burnt a4o606 are just due to bad solder joints? I thought the 2nd number was the part number. If you have 5V and 12V, check the logic board.
Originally Posted by chomot Post I know this is an old thread but I figured since there is good advice here on the P I should see if my problem will add to it. Sorry for the long lead, I am have some time now to get back to this.
Remove one of the primary winding pin and connect a 60 watt light bulb. Measuring the primary side of the transformer.
Alpha & Omega Semicon/AOS AO – PDF Datasheet – MOSFET In Stock |
I did attach photos of the front and back of it. I have fixed about a doz monitors now with only the knowledge of replacing the PS caps and have had good luck with this as I have always found the bulged caps every time I opened one up. SO this leads me to ask the question It will since the presence of a video signal when I switch the note book PC I use for testing from onboard LCD to external and back but that is all it does other than make a nice datasheeet square desk light.
So i will have to look a little deeper. Originally Posted by Welchs Could it be the transformer?
Could it be the transformer? Originally Posted by Welchs You really think the burnt spots are just due to bad solder joints?
Good thing i did since after i removed the caps i measured them using my cap meter on my fluke I am thinking the power supply card is fine but the video processor board is acting up. Page 1 of 2. They were the SAMXON brand which i remember reading on here that these were “bad” so i replaced the other caps as well.
Have you seen this before? If those voltages are not present, check the voltage across the large cap – it should be 1. I have fixed a lot of monitors by replacing the caps on the PS card but this will vatasheet my first with processor card issues.
If that does not work I will ask if anyone wants a monitor for parts or repair as I will be outa my leage. I was looking at the signal board wich I also included a photo of and doing some searches on it but I could not find any silver bullet type fix for it.
I opened it up and found two burned areas on the power supply board see enclosed pic. Does anyone know of any issues with these. ALL of the inputs on the primary side be shorted? Also sorry for not mentioning that I did look datashete the panal when you brought it up, I should have said so but I forgot since I did not see anything about it.
I see no obvious issues visually. I will get back to you with the results. Should ALL of the inputs on the primary side be shorted? The xo4606 button that works is the power and all the others do not give me any menu nothing.