Re: Gateway NV59C09U No backlight LED
I don't have the fine point test leads nor the skills to attempt those to probe those tiny little lands without frying the motherboard.
Some of the larger areas, (fuses) were easier but.
I could not understand much of the schematic, way too complicated for me.
I am not very skilled at this level.
Appreciate everyone's patience.
Reech
Member
Last Activity: 09-01-2016, 02:06 PM
Joined: 09-16-2012
Location: Bellmore/NY
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Re: Gateway NV59C09U No backlight LED
Tried again last night, the orig. display works fine on a known good laptop.
The known good display has the same no backlight on the problem laptop.
So problem is with the motherboard.
If anyone has any idea of a fuse or something on the mobo, this one is toast!
Thanks to everybody that responded, your help is much appreciated.Leave a comment:
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Re: Gateway NV59C09U No backlight LED
I just tried another working display and I get the same result, no backlight but I can faintly see images on screen.Leave a comment:
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Re: Gateway NV59C09U No backlight LED
Spidey, Thanks I'll check this out tonight!
The other link is in a response from trebo dated 1/25/14.Leave a comment:
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Re: Gateway NV59C09U No backlight LED
Spidey, I have a duplicate post (I have left note to use this one) that has the schematic [url]https://www.badcaps.net/forum/showthr...618#post412618[/url]
See Khaank's response 1/21/14. Mobo is: New90 L21.Re: Gateway NV59C09U No backlight LE...is: New90 L21.Re: Gateway NV59C09U No backlight LED
Spidey, I haveLeave a comment:
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Re: Gateway NV59C09U No backlight LED
Does anyone know where I can check for the LED backlight voltage at both the motherboard and the display so I can trace the problem to one of these components.Leave a comment:
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Re: Motherboard: NEW90 L21 No LED Backlight on Display
Closing this thread, please post to:
[url]https://www.badcaps.net/forum/showthread.php?t=34610[/url]Re: Motherboard:NEW90 L21No LED Back...?t=34610[/url]Leave a comment:
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Re: Gateway NV59C09U No backlight LED
Wow, those contacts are way too tiny for my meter, I can't even try it.
Don't want to fry the mobo!
Anyone have a tip on checking voltage at the led backlight?Last edited by Reech; 02-03-2014, 10:44 AM.Leave a comment:
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Re: Motherboard: NEW90 L21 No LED Backlight on Display
selldoor, I just spent `15mins searching on how to stop/delete a thread and cannot find anything. I will try again later, ThanksLeave a comment:
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Re: Motherboard: NEW90 L21 No LED Backlight on Display
Khaahk, I checked - L12, L13 and they check for continuity.
Are the L s the fuses?
ThanksLeave a comment:
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Re: Motherboard: NEW90 L21 No LED Backlight on Display
I don't have another screen to test. I am also not that high a level as you all seem to be at re: testing and probing these tiny components.
Not sure where to test the voltages going to the screen.
There must be something either the led backlight or voltages to it or a fuse along the way that was shorted at some point. As I said it boots great, you just can't see anything since the backlight is not functioning.
If it's the mobo it's just not worth the $$$'s at this point.
Thanks to all for your...Leave a comment:
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Motherboard: NEW90 L21 No backlight LED
I had a second post which had the motherbord model above that was flagged as a duplicate. On Friday 1/24/14 I checked it at work and there were several replies.
When I got home from work that "post" had been removed along with the replies that I was going to try and repair the mobo with.
How can I get this back?
Thank youLeave a comment:
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Re: Motherboard: NEW90 L21 No LED Backlight on Display
Thank you to all for the replies, much appreciated!
kkaahk, I will check L12, L13 (are they top or bottom of board?) Any directions appreciated.
Dj Ricoh, what do you mean find a smash and work like that?
MDY, are you saying KBC (key board connector?)Leave a comment:
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Re: Motherboard: NEW90 L21 No LED Backlight on Display
Sorry, here's other side...Leave a comment:
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Re: Gateway NV59C09U No backlight LED
Yes, no problem with external display.
I am attaching two pics of the mobo.
Thanks...Leave a comment:
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Re: Motherboard: NEW90 L21 No LED Backlight on Display
Wow the schematic is great! Wish I could decipher where the fuses would be.
I am attaching to pics of the mobo hopefully someone could lead me to the fuses. Thanks...Leave a comment:
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Re: Motherboard: NEW90 L21 No LED Backlight on Display
Sorry for the double post but I couldn't find any answers to this issue.
Can't find a schematic. I'll take some pics of the mobo, top and bottom.
ThanksLeave a comment:
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Re: Gateway NV59C09U No backlight LED
Wore ground strap for all motherboard touching.
Battery was removed, etc when I replaced the cables.
I'll try to get clear pics of the mobo, both sides.
ThanksLeave a comment:
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Motherboard: NEW90 L21 No LED Backlight on Display
I can faintly see image on the display with flashlight but screen has no brightness at all. Laptop was dropped; replaced the power jack and LED display cable. Both were damaged and the left hinge was snapped off and flopping around. The LED cable must have shorted something since the display was working prior to the repairs.
The 2 fuses on back of the LED display check good.
I could not locate any other fuses on the motherboard. -
Gateway NV59C09U No backlight LED
Motherboard: NEW90 L21
I can faintly see image on the display with flashlight but screen has no brightness at all. Laptop was dropped; replaced the power jack and LED display cable. Both were damaged and the left hinge was snapped off and flopping around. The LED cable must have shorted something since the display was working prior to the repairs.
The 2 fuses on back of the LED display check good.
I could not locate any other fuses on the motherboard.
No activity results to display
Leave a comment: