Re: ASUS VW246H backlight cuts out in 1-2 seconds
When the backlight does come on for a quick couple seconds or so the screen is bright. I've been reading and some people say this can be due to a bad backlight tube but it will seem more dim than it should be. Since it is bright it doesn't sound like that is the issue, right?
I actually found a replacement power/inverter board but would suck if it ended up being the tube.
norcalx360repair
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Last Activity: 06-03-2013, 04:16 PM
Joined: 11-20-2011
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Re: ASUS VW246H backlight cuts out in 1-2 seconds
I'll see if I have suitable replacements and report back. I have plenty of other boards I can check.
THanks.
EDIT:No suitable replacements.
I found that there is another compatible board part number. 5e-0nc02-001. Can't find it anywhere though.
Last edited by norcalx360repair; 05-30-2013, 04:15 PM.Leave a comment:
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Re: ASUS VW246H backlight cuts out in 1-2 seconds
Thanks for reply. Unfortunately, I don't have any way to even check capacitance now. I actually found the service manual for 26 inch version and I believe they use the same board. I'll check more and report back.Last edited by Uranium-235; 05-29-2013, 01:01 AM. Reason: sorry, thought it was my post, didn't reload my post when I hit the back buttonLeave a comment:
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ASUS VW246H backlight cuts out in 1-2 seconds
Hi, someone brought me an ASUS 24 inch monitor(VW246H) and the backlight cuts out very quickly. Video is still ok confirmed with light. I googled this every which way and there isn't much info on this problem.
I opened it up and this one has PSU and inverters on one board. Board number is 4h.onc02.a01. All caps and everything else looks good on it but I know this doesn't mean they aren't bad.
I was hoping someone has seen this before. I don't work on monitors or tv's much at all and this is for a coworker so free type thing to try to help him out.... -
Re: Phillips 50PFP5332d No video or backlight
Thanks.
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Re: Phillips 50PFP5332d No video or backlight
Well, they wanted me to try on the fuse and it didn't work of course. That would be too easy. I'm sending off the ysus and buffers then..Leave a comment:
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Re: Phillips 50PFP5332d No video or backlight
I found the service manual for a model that has the same parts in it. Its the hp5054. Its pretty sweet. Will update with results.
EDIT:I've been reading for a few minutes and coppel does y sus repairs on ebay. Not sure how much the buffers are but I see they only have warranty on this y sus repair if you either send it in with the buffers OR buy the buffers from them or someone they trust. Very understandable too.
I was really hoping to actually fix whatever is wrong with it VS just getting someone else to do...Last edited by norcalx360repair; 11-23-2011, 12:37 AM.Leave a comment:
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Re: Phillips 50PFP5332d No video or backlight
Oh, I'm glad you guys said that. I'll just check the price on the whole board for now. I didn't even see 10 mosfets on it. I took some pictures but they are crappy really. Didn't even get the model number on the board itself.
I do have the diode setting on my meter. It just looks like an arrow with a line, right? I'm hoping thats it anyways lol. Its the same as continuity on this meter. Thanks again guys.Leave a comment:
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Re: Phillips 50PFP5332d No video or backlight
Here's the meter I have. I'm really sorry I'm such a noob here but really its helping me to understand. I've never had to test mosfets in the electronics I work on, as the problems are 95% bga failure.
here's the meter I'm working with:
EDIT:Just tried to test some mosfets on an xbox board. I got the same reading by applying gate votage or without. Maybe this DMM is a POS? Not enough test voltage or something? I got infinite either way. Thanks for your patience guys. I'm seriously...Last edited by norcalx360repair; 11-22-2011, 02:59 PM.Leave a comment:
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Re: Phillips 50PFP5332d No video or backlight
Cracked it open... Mosfets checked out ok if I tested them right. There wasn't even one bulged/leaking cap anywhere. I found va and it tested at 5.1v so thats on point. Couldn't find vs...
While looking at the back, I know there's x and y boards on either side. Not sure which is on the left(x maybe?). I found a blown fuse on that board. Getting a fuse holder and matching spec fuse and installing it. Would be amazed if that works.
I took some pics but will upload them later after I install the new fuse. Thanks...Leave a comment:
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Re: Phillips 50PFP5332d No video or backlight
Thanks guys. I'm opening her up tomorrow and will check these and post pictures. Thanks for the quick help!
EDIT:Sorry.. Noob status. To check for shorts in mosfets I just check for continuity from drain to gate correct?Last edited by norcalx360repair; 11-22-2011, 12:02 AM.Leave a comment:
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Phillips 50PFP5332d No video or backlight
Hey guys. My first post here. I saw there was one related post but wasn't exactly the same problem. I am new to the tv repair scene first off. I do bga rework and other repairs on game consoles and laptops mostly. I don't have an esr cap tester or anything like that yet either.
Anyways, I'm having more and more requests for tv repair. Have a customer now with a phillips 50pfp5332d. The blue light stays solid and you can hear sound but nothing else. Also noticed an extra 'click' when you turn it on. So instead of hearing click and its on, it goes click then clicks again. Just trying...
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