I was all happy until I looked at the model number. No biggie
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Alias
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Last Activity: 10-01-2017, 12:58 AM
Joined: 10-03-2011
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Re: Help finding identical or replacement MOSFET.
I was all happy until I looked at the model number. No biggie....
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Re: Help finding identical or replacement MOSFET.
I dont have to get them from ebay. I think mouser and digikey have the fets he linked to, I just need to know if the 05 will replace the 09 without much issue.Leave a comment:
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Re: Help finding identical or replacement MOSFET.
The 05 will work in place of an 09?Leave a comment:
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Help finding identical or replacement MOSFET.
Hey all
I gots me an MSI P7N SLI Platinum here with a bad N-channel FET.
IPD09N03LA N-Channel
TO-252 package
Infineon encapsulation
Datasheet: [url]http://pdf1.alldatasheet.net/datasheet-pdf/view/152817/INFINEON/IPD09N03LAG.html[/url]
Pretty much anywhere I look it's obsolete and out of stock. Anyone know where I can find a suitable replacement for it? The other side there are two NIKOS P75N02LDG FETs.
Datasheet: [url]http://pdf1.alldatasheet.net/datasheet-pdf/view/165715/ETC1/P75N02LD.html[/url]
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Re: L1975NW Issues...
Okay well now I feel really stupid....
Well, after some research I found out that the Q210 resistor is actually "10R0" and not 1000. THEN I figured out that I don't have fuses in the F locations, instead I have 0 resistance resistors........
SOOOOO that explains why they are not blowing from the over current.
Now to top it all off I'm SURE because of those resistors I have caused havoc to the lines for the Q206 FET and is causing it to overheat and fail.
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Re: L1975NW Issues...
OK so I took it out and tried to test it but get no reading on it at all. The meeter will give me a random number for a split second then shows infinite.
Also went and tested the other resistors and all showed up as the numbers on the top +-5%. There were a few with different readings
R216- "2202" - 700 - 20k setting
R233- "2202" - 700 - 20k setting
R206- "1000" - 100 - 200 setting (that is right next to the controller, and I guess it's good)
R139- "1302" - 1160 - 20k...Leave a comment:
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Re: L1975NW Issues...
So what is the voltage supposed to be on the FET? I'm guessing there is WAAAYY too much power going through it. I would think about 12V for the lamps? I'm still not getting why the fuse is not blowing when it's on if it's getting overpowered.Leave a comment:
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Re: L1975NW Issues...
Well, it's not 10 ohms LOL. Where does that resistor go to? Honestly if there is many failed SMD components I might as well buy a replacement board and replace the caps on it. As you can see my SMD skills are
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Re: L1975NW Issues...
1. No the kit did not have it, but I can replace it if I need to.
2. The bottom mosfet tests fine and swiches like it should both in and out of circuit. I bought a pair and installed them, the first one to fry was from the new kit. The one standing is the third one installed, two failed from overheating.
3. Okay I can remove the white stuff
4. I will go get some solder wick and redo them (I know you had to giggle at LEAST from seeing all those).
5. No kit did not have those either. They seem okay though but...Last edited by Alias; 01-28-2012, 05:21 PM.Leave a comment:
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Re: L1975NW Issues...
Tried like 50 times for these....
The FET standing up is the one that keep going out. After 7 or so seconds of being on it gets very hot, the other one is not getting hot at all.
And yes go ahead and laugh at my soldering, I have no idea where my small tip is for my iron.......Last edited by Alias; 01-28-2012, 04:00 PM.Leave a comment:
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Re: L1975NW Issues...
Sorry for the double post, but it will not let me edit my last one.
I had it fixed for all of 5 minutes, I was all exited that it was working again and then all of a sudden the back lights went out again. I DID find out the problem component though, Q206; the top MOSFET. I still had the old two I replaced with then new ones. I changed the FET and worked fine for 5 minutes, then it shorted out just like the last one. Fuse is still there though so I'm puzzled now. I'll try another and see if it does the same thing.
Any ideas, cuz I'm...Leave a comment:
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Re: L1975NW Issues...
Wow I did spell it with an I....
They are "Rubycon" caps, and the are the 25V 1000uF caps. The other caps are black and gold with [M] on them (Panasonic FM's). ANYWAY, my camera will not focus on it at all and same with my phone.
I did get it to do the 2 seconds to black last night and not just flicker on and off, but after 3 minutes it went right back to the flickering. That was after I left it alone unplugged for a while. Tried it again this morning and it's still flickering so I'm not sure what it's doing.
...Last edited by Alias; 01-28-2012, 12:54 PM.Leave a comment:
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Re: L1975NW Issues...
Uhh sorry for reviving my old thread, but I finally got the parts and replaced the caps with a kit I bought. All rubicon caps installed and I ran into an issue. The screen used to turn on but no backlight but I could see the image with a light. Replaced all three of the fuses and the mosfets and now it power cycles on and off. The lamps do turn on for a split second but then it shuts off. Even with the lamps disconnected it still does it. I get 5V and 14.5-15 or so on the 13.6 lines even while it does this. But i'm kind of lost as none of the fuses are blown....Last edited by Alias; 01-27-2012, 10:06 PM.Leave a comment:
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Re: L1975NW Issues...
Umm, LOL must be more common then I thought....Leave a comment:
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Re: L1975NW Issues...
So it would be very unlikely for the mainboard to go out after something like this? If the caps are bad then that is no biggie for me, been there done that, but there being nothing on the 13.8 pin is what worries me.
I'll go make a list or find one that is already been posted that is good.
Thank you for the help
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L1975NW Issues...
Hello all, noobie here.
Well let me start by saying I searched about on here for my problems but found them to not be related to what I have.
I bought this monitor for 200 back in 07-08ish and love this thing to death (I know right? I bet you will tell me otherwise) however, being pretty much problem free up until now it FINALLY gave up. I know these and some other related monitors have the common issue with the inverter, I don't think that is my problem.
SO, I turn it off last night (nothing wrong with it at all, just another day), go to bed,...
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