New screen cable did not work either. Going to have to get a replacement laptop. Since I am, I will reflow this board in to the abyss!!
gridl0ck
Member
Last Activity: 01-01-2017, 01:34 PM
Joined: 12-28-2013
Location: Middle Earth
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Re: Need help finding LED backlight fuse [PICS]
New screen cable did not work either. Going to have to get a replacement laptop. Since I am, I will reflow this board in to the abyss!!
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Re: Need help finding LED backlight fuse [PICS]
The LCD is ok I ordered a replacement to double check and it also had the same problem. Any chance the LCD cable can be causing this? My multimeter has gone caput at the moment and have ordered a new one. Will test the pins when it is here.
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Re: Need help finding LED backlight fuse [PICS]
it.vendor was on about the mosfet below pin one (8-legs) do you think it will be that? I have located the part in china
[url]http://www.ebay.co.uk/itm/1-Piece-New-CYStech-B20N03-B20-N03-QFN8-IC-Chip-/271125214452[/url]
I wouldn't have any difficulties heating it on. May give it a go and see what happens.Re: Need help finding LED backlight ...25214452[/url]Leave a comment:
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Re: Need help finding LED backlight fuse [PICS]
Thanks for the input Lord. Will try and give it a search for the schematics. Since I am looking at replacing the laptop
I might just super toast it with a reflow gun.
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Re: Need help finding LED backlight fuse [PICS]
Only "important" looking parts numbers on the board are:
BTC-202B
94V-0
PN:60-N3CMB1500-C07
Also the clamp that holds down the heat sink has written on it: 13GNXZ1AM01X-1Leave a comment:
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Re: Need help finding LED backlight fuse [PICS]
Thanks for the reply Lord. I am unable to locate any schematics anywhere. A few others have tried to find them also to no avail. Have you ever worked on this mobo and maybe remember which pin is which? Thank you.Leave a comment:
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Re: Need help finding LED backlight fuse [PICS]
Just an update, I purchased a new LCD just to make sure it wasn't that. Unfortunately the new LCD shows no back light either. Definitely a problem on the motherboard I guess. Looks like I will have to fork out for a replacement laptop this time.
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Re: Need help finding LED backlight fuse [PICS]
Hi, the pics are uploaded on page 2 last post if it helps. The model of laptop is k53e but the mobo says it is k53sd. Hope this helpsLeave a comment:
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Re: Need help finding LED backlight fuse [PICS]
Sorry just been dicharged from hospital (great start to new year). Anyone was anyone able to look at the pictures and identify the jumpers it.vendor is on about? Looks like I will have to fork out for a replacement laptop
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Re: Need help finding LED backlight fuse [PICS]
Checked under microscope and the black 8-legged component has written on it:
MB20
N03
CCE0078Leave a comment:
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Re: Need help finding LED backlight fuse [PICS]
Hi, have attached some photos to this. There was a 0 component there which I tried to jump to see if it makes a difference, but no luck....Last edited by gridl0ck; 01-02-2014, 06:51 PM.Leave a comment:
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Re: Need help finding LED backlight fuse [PICS]
Happy new year everyone. Been under the weather recently so didn't jave a chance to give an update. Pretty much still in the same situation. IT Vendor, are you able to point out on a photo of the part needing a jumper?Leave a comment:
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Re: Need help finding LED backlight fuse [PICS]
Sorry should have been more clear. I have the same issue as OP. The motherboard is from an Asus X53e model but the main board has listed on it K53SD rev 2.3. I dismantled the laptop to service he charging port. I did not need to replace the port as it had only become loose from its pad on the main board. I used a soldering iron to re-establish connection between the legs and board.
After that I proceeded to put the laptop back together when I thought I would double check everything. I connected the keyboard, screen...Leave a comment:
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Re: Need help finding LED backlight fuse [PICS]
Hello, I have the same problem. I changed the charging port and the screen now has no back light. Does anyone have a solution for this yet? Seems this is the only thread on the net with any decent info about this problem. Hope someone did find a fuse/resistor which is responsible for it.
Thank you.Leave a comment:
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