PDA

View Full Version : Help Please G60JX screen backlight stopped working



superman2k2
05-12-2013, 03:10 AM
Hello I purchased a new GTS 330m for my Asus G60JX and for some reason my backlight wont turn on. The screen is on because I can see a dim picture and when connected to VGA or HDMI I get a picture on the screen.I forgot to mention I tried 2 other Internal screens and the back light on none of them worked. I even tried a different vga cable I had and the same results. I only get picture with VGA and HDMI. I need to know if the video card is the problem? Would the picture show through VGA and HDMI if the Video card is bad? Please any help would be great.

dstrakele
05-12-2013, 03:39 AM
The video card is not the problem, @superman. As you observed, the image IS produced on your laptop display,so your Graphics Adapter's job is done. You just have trouble seeing it because the display is no longer backlit.

All you gotta do is fly around the earth in the opposite direction of it's rotation at the speed of light to go back in time and be more careful when you reassemble the laptop OR see http://rog.asus.com/forum/showthread.php?28044-G74S-Screen-is-extremely-dim-and-can-barely-see-anything&p=213008&viewfull=1#post213008.

superman2k2
05-12-2013, 03:50 AM
Thx for the link and reply but Why isn't my other internal monitor working ether?

dstrakele
05-12-2013, 03:59 AM
Oops! I skipped right over that important piece of information in your OP! Maybe you need a larger capacity power supply or your current power adapter isn't putting out to specs?

superman2k2
05-12-2013, 04:04 AM
well I am using a charger from an asus g60VX instead of G60JX

dstrakele
05-12-2013, 04:09 AM
Are you noticing an unusual amount of heat buildup in the power adapter or at the power connector area of the laptop?

superman2k2
05-12-2013, 04:11 AM
Nope it fells normal

superman2k2
05-12-2013, 04:18 AM
Even if the power supply isn't strong enough would't the screen turn on when its Battery power?

dstrakele
05-12-2013, 04:34 AM
Perhaps the connector supplying power to the display backlight from the motherboard is damaged?

grungeboy2
05-12-2013, 06:41 AM
maybe the inverter board isn't compatible.

there's a small, rectangular, and usually yellowish box, at the bottom of your LCD panel. the bezel around the LCD panel and the four perimeter screws would need to be removed in order to see it/gain access to it.

i've seen them go bad and need to be replaced. it doesn't really sound like yours is bad per say. my hunch here is that maybe yours isn't compatible with that video card.




grungeEdit: why did you pick a 330m?

superman2k2
05-12-2013, 06:46 AM
Thanks for the info Ill give it a try. I got the #60m because that's the card that's compatible with this system. I think the monitor and power supply are from an Asus G60VX

superman2k2
05-12-2013, 07:40 PM
Well I tried another Internal monitor and another lcd cable but The backlight still doesn't come on. Im really stumped The lights on the back of the case are on and the keyboard lights are on. I also know its not the video card I because I used it all night and played games on it.

grungeboy2
05-12-2013, 08:21 PM
i'd check out the inverter board.

superman2k2
05-12-2013, 08:26 PM
But I used 3 different Internal Lcd's and the back light wont come on with any of them but they work like normal in the original laptops. So I don't think its the Inverter....Could I be wrong?

superman2k2
05-14-2013, 03:52 PM
Bump.... Any other advice anyone can offer please? My power supply say PWR+ model c4 input: 100-240v 3a 50-60 hz output:19v 6.3a

cl-Albert
05-14-2013, 04:37 PM
Hello I purchased a new GTS 330m for my Asus G60JX and for some reason my backlight wont turn on...

Thanks for the info Ill give it a try. I got the #60m because that's the card that's compatible with this system. I think the monitor and power supply are from an Asus G60VX

1. Not sure how likely this is, but if you had to disconnect the LCD cable, make sure none of the connecting pins on the motherboard have not been bent and everything looks good there with the connections. I've bent them myself before when I wasn't careful unplugging and re-plugging the LCD cable back into the motherboard.

2. Sorry, I may have read the thread too quickly, but just trying to figure out what in your G60Jx currently isn't for the G60Jx model.
I wouldn't worry too much about using the G60Vx power supply yet, but if you are using other parts that aren't for the G60Jx model, we may want to look into them more later to check if they could be causing the problems.
The G60Jx should be using the GTS 360M, but your OP mentioned GTS 330m (and you mentioned #60m later), so just curious which vga board you are using and if it is for the ASUS G60Jx.
If you aren't using the LCD for the G60Jx, that might be another thing to discuss or look into (?).

3. We may want to discuss more first and it may not be worth it, but just wanted to remind you that you can always send it to ASUS for (out-of-warranty?) service if you prefer, but not really sure how this will go.
Good luck!

superman2k2
05-14-2013, 04:41 PM
I have a gtx 360m those are typos. The LCD and cable are from a G60vx

cl-Albert
05-14-2013, 04:43 PM
Bump.... Any other advice anyone can offer please? My power supply say PWR+ model c4 input: 100-240v 3a 50-60 hz output:19v 6.3a

Check under your notebook for the input rating label, but I show it is also 19V, 6.3A, 120W, so it matches your power supply and should not be a problem.
The G60Vx and G60Jx appear to use the same 120W power supply, so this isn't the problem.

superman2k2
05-14-2013, 04:45 PM
Yes that's what it say underneath

cl-Albert
05-14-2013, 05:00 PM
I have a gtx 360m those are typos. The LCD and cable are from a G60vx

Not sure if you meant to say GTS 360M instead of GTX 360M, but also curious if the video card was for the ASUS G60Jx, or you were able to get some generic vga module, etc.
Unfortunately, I'm not sure what exactly is causing the problem, but I know the G60Jx LCD and LCD cable would work fine in the G60Jx, so I tend to go after anything that isn't for the G60Jx which may or may not be the right approach.
Anyway, you probably don't have a lot of G60Jx parts available to try out and may want to ask around more first for other ideas, but if everything else looks okay, I would look into those parts that aren't for the G60Jx.

superman2k2
05-14-2013, 05:06 PM
I did mean GTS 360m. The only other parts that aren't for the G60JX are the memory which is 4gb ddr3 and a SSD

cl-Albert
05-14-2013, 05:47 PM
Well, as long as your motherboard is okay (?), I would guess there could be some problem to use the G60Vx LCD and LCD cable, but not very certain about this.
If the G60Jx LCD and LCD cable were available to try, I would want to see how this goes.

Was the original problem just a bad G60Jx LCD module that wouldn't light up? If it was a cracked LCD that did light up, it would make me think that there is a problem to use the G60Vx LCD on the G60Jx if it's not even lighting up like the cracked LCD.

Forgot you mentioned you also replaced the vga card in your OP (did you have a chance to try the G60Jx LCD at this time too?), so we may not be able to eliminate this yet either.

Doesn't seem like I've been able to help much then.

The memory and SSD drive shouldn't be related to this problem especially if they were working before in the unit although you could probably pull them out if necessary to check.

superman2k2
05-14-2013, 05:57 PM
Oh I did also install an i7 820qm but when the backlight didn't turn on I tried an i7 720qm and the backlight still didn't turn on so I reinstalled the 820qm.

dstrakele
05-15-2013, 02:00 AM
It sure sounds like the inverters on the displays you've installed just aren't getting any juice.