Dell (Inspiron 9300) Laptop LCD Problem

infowire · 06-22-2009, 05:12 PM

Hello, this is my first post here, i am a tech guy myself and i am stumped for once on something.

I have a Dell Inspiron 9300 laptop with a 17" screen witch started to have lines on it.

1. I plugged it into an external LCD and it worked just fine.
2. I ordered a new LCD from ebay, i had to clip the LCD cable hinges to fit the new screen. (http://www.yall.net/Laptop-LCD-Scree...connector.html)
3. Once i plugged everything in, the screen would not turn on, neither would the old one.
4. Bought an LCD cable and inverter and i still can not get neither the old screen nor the new one to turn on. It works just fine with a external monitor. I have tried hitting Function and CRT/LCD button on the keyboard as well.

So i have 2 screens, 2 LCD cables (one clipped), 2 inverters. Nothing seems to work. On board video works with a monitor. I am out of options so i need some help.

SteveHomoki · 06-22-2009, 05:38 PM

Is it possible that you may have damaged something while replacing the lcd? Other then that, the only other possible explanation is a short or a bad part.

infowire · 06-23-2009, 11:48 AM

Yeah i am keeping that in mind, but it is so strange. I am pretty careful when swapping the screen, i really doubt i damaged it, I've changed many screen before and never had a problem like this.

SA Spurs1 · 06-23-2009, 07:05 PM

When you bought the LCD you should have gotten the inverter that goes with the screen. I believe that is where you may have gone wrong.

infowire · 06-25-2009, 02:53 AM

I really doubt its the inverter. This is a replacement screen and should work with the OEM inverter.

dai · 06-25-2009, 03:00 AM

recheck the connections

infowire · 06-25-2009, 05:21 PM

did that many times.. there is only 3 things... lcd connection ans the 2 inverter connections.

flipbooks · 07-19-2009, 10:46 AM

I've seen this type of thing with DELL 's before ! Normally it would be proper procedeure to install the new screen with the laptops power off.But on Dell's,I have noticed on many models ,that you have to turn on the laptops power and then plug in the LCD's cable in order for the screen to work. Weird ,but true in some cases.

[quote=flipbooks;2247603]I've seen this type of thing with DELL 's before ! Normally it would be proper procedeure to install the new screen with the laptops power off.But on Dell's,I have noticed on many models ,that you have to turn on the laptops power and then plug in the LCD's cable in order for the screen to work. Weird ,but true in some cases.

infowire · 07-20-2009, 12:38 PM

that is kinda strange...

flipbooks · 07-21-2009, 08:33 AM

Yeah, I certainly agree that it's strange.

But the little known truth is that computer and electronics companies many times will resort to tricks like that to prevent or discourage you from trying to repair the equipment. That way they protect their service business. I've seen chips with phoney part numbers stamped on them, part numbers sanded off,etc. The engineers may have decided to go that route ( your screen problem).

dai · 07-21-2009, 09:37 AM

no one has ever had to install a screen with the power on before in previous threads

it's not something i would advise

go with replacing the inverter as suggested earlier,it's not like they are expensive

06-22-2009, 05:12 PM	#1 (permalink)
infowire Registered User Join Date: Jun 2009 Posts: 5 OS: XP 64 Bit SP2	Dell (Inspiron 9300) Laptop LCD Problem Hello, this is my first post here, i am a tech guy myself and i am stumped for once on something. I have a Dell Inspiron 9300 laptop with a 17" screen witch started to have lines on it. 1. I plugged it into an external LCD and it worked just fine. 2. I ordered a new LCD from ebay, i had to clip the LCD cable hinges to fit the new screen. (http://www.yall.net/Laptop-LCD-Scree...connector.html) 3. Once i plugged everything in, the screen would not turn on, neither would the old one. 4. Bought an LCD cable and inverter and i still can not get neither the old screen nor the new one to turn on. It works just fine with a external monitor. I have tried hitting Function and CRT/LCD button on the keyboard as well. So i have 2 screens, 2 LCD cables (one clipped), 2 inverters. Nothing seems to work. On board video works with a monitor. I am out of options so i need some help.

06-22-2009, 05:38 PM	#2 (permalink)
SteveHomoki Junior Tech, Games Team Join Date: Jun 2009 Location: Southern California Posts: 108 OS: xp pro sp3, vista basic, linux 10.0,	Re: Dell (Inspiron 9300) Laptop LCD Problem Is it possible that you may have damaged something while replacing the lcd? Other then that, the only other possible explanation is a short or a bad part.

06-23-2009, 11:48 AM	#3 (permalink)
infowire Registered User Join Date: Jun 2009 Posts: 5 OS: XP 64 Bit SP2	Re: Dell (Inspiron 9300) Laptop LCD Problem Yeah i am keeping that in mind, but it is so strange. I am pretty careful when swapping the screen, i really doubt i damaged it, I've changed many screen before and never had a problem like this.

06-23-2009, 07:05 PM	#4 (permalink)
SA Spurs1 Tech Hardware Team Join Date: May 2009 Location: Texas Posts: 218 OS: Windows 7 Pro x64	Re: Dell (Inspiron 9300) Laptop LCD Problem When you bought the LCD you should have gotten the inverter that goes with the screen. I believe that is where you may have gone wrong.

06-25-2009, 02:53 AM	#5 (permalink)
infowire Registered User Join Date: Jun 2009 Posts: 5 OS: XP 64 Bit SP2	Re: Dell (Inspiron 9300) Laptop LCD Problem I really doubt its the inverter. This is a replacement screen and should work with the OEM inverter.

06-25-2009, 03:00 AM	#6 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,774 OS: win 7 32x 64x rtm	Re: Dell (Inspiron 9300) Laptop LCD Problem recheck the connections __________________

06-25-2009, 05:21 PM	#7 (permalink)
infowire Registered User Join Date: Jun 2009 Posts: 5 OS: XP 64 Bit SP2	Re: Dell (Inspiron 9300) Laptop LCD Problem did that many times.. there is only 3 things... lcd connection ans the 2 inverter connections.

07-19-2009, 10:46 AM	#8 (permalink)
flipbooks Registered User Join Date: Jul 2009 Posts: 5 OS: Windows Vista Business SP1	I've seen this type of thing with DELL 's before ! Normally it would be proper procedeure to install the new screen with the laptops power off.But on Dell's,I have noticed on many models ,that you have to turn on the laptops power and then plug in the LCD's cable in order for the screen to work. Weird ,but true in some cases. [quote=flipbooks;2247603]I've seen this type of thing with DELL 's before ! Normally it would be proper procedeure to install the new screen with the laptops power off.But on Dell's,I have noticed on many models ,that you have to turn on the laptops power and then plug in the LCD's cable in order for the screen to work. Weird ,but true in some cases. Last edited by dai; 07-21-2009 at 10:53 AM.

07-20-2009, 12:38 PM	#9 (permalink)
infowire Registered User Join Date: Jun 2009 Posts: 5 OS: XP 64 Bit SP2	Re: Dell (Inspiron 9300) Laptop LCD Problem that is kinda strange...

07-21-2009, 08:33 AM	#10 (permalink)
flipbooks Registered User Join Date: Jul 2009 Posts: 5 OS: Windows Vista Business SP1	Yeah, I certainly agree that it's strange. But the little known truth is that computer and electronics companies many times will resort to tricks like that to prevent or discourage you from trying to repair the equipment. That way they protect their service business. I've seen chips with phoney part numbers stamped on them, part numbers sanded off,etc. The engineers may have decided to go that route ( your screen problem). Last edited by dai; 07-21-2009 at 09:33 AM.

07-21-2009, 09:37 AM	#11 (permalink)
dai Manager, Hardware Forums Join Date: Jul 2004 Location: west australia Posts: 56,774 OS: win 7 32x 64x rtm	Re: Dell (Inspiron 9300) Laptop LCD Problem no one has ever had to install a screen with the power on before in previous threads it's not something i would advise go with replacing the inverter as suggested earlier,it's not like they are expensive __________________