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15.4" WXGA/WXGA+/WUXGA LCD Inverter Board and CCFL Backlight with Wire Harness Combo for Dell Laptop/Notebook Inspiron 1501 1520 1521 1525 1526 6400 E1505 Latitude 131L D531 D820 D830 Precision M4300 M4400 M65 M70 Vostro 1000 1500 XPS M1530 Sale Price: $25.99  |
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Does your Laptop LCD screen or Destop LCD Monitor appear to be getting dimmer? is the screen flickering or suffering from the infamous pink hue (Red Tint) or simply just dark Screen? This is probably caused by the defective CCFL backlight or Inverter Board, and all you need to do is replace them... |
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Macbook Backlight Inverter Board 13.3" Sale Price: $16.93 Used From: $7.49 |
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This is an inverter board for the Macbook 13". This is the board that controls the backlight to the display and is usually the culprit of a dim display. The part is the same for both the white and black MacBooks... |
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14.1" WXGA/WXGA+ LCD CCFL Backlight with Wire Harness and Inverter Board Combo for Dell Laptop/Notebook Inspiron 1410 1420 1425 1427 1428 630m 640m B120 B130 E1405 Latitude 120L D620 D630 D630c D631 E5400 Precision M2300 M2400 Studio 1435 Vostro 1400 XPS M140 Sale Price: $28.70 Used From: $28.81 |
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Does your Laptop LCD screen or Destop LCD Monitor appear to be getting dimmer? is the screen flickering or suffering from the infamous pink hue (Red Tint) or simply just dark Screen? This is probably caused by the defective CCFL backlight or Inverter Board, and all you need to do is replace them... |
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15.4"Wxga/Wuxga/Wxga+ LCD CCFL Backlight with Wire Harness and Inverter Combo for Dell Laptop/Notebook Inspirion 1501 1520 1521 1525 1526 Series Latitude 131L D531 D820 D830 Series Precision M4300 M4400 M65 M70 Vostro 1000 1500 Xps M1530 Series Sale Price: $20.06 |
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Does your Laptop LCD screen or Destop LCD Monitor appear to be getting dimmer? is the screen flickering or suffering from the infamous pink hue (Red Tint) or simply just dark Screen? This is probably caused by the defective CCFL backlight or Inverter Board, and all you need to do is replace them... |
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HP Pavilion DV2000 Backlight Inverter Board Sale Price: $4.97 Used From: $3.99 |
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LCD Screen Inverter Board Compatible Models Acer Extensa 4220 4420 4620 4620Z Series HP Compaq CQ50 CQ60 CQ70 G50 Series NEW HP/Compaq dv2000 V3000 Series Acer Aspire 3624 3628AWXMi Series Compatible Part Numbers YNV-W06, 417097-001 6001894L, 19... |
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14.1"Wxga/Wuxga/Wxga+ LCD CCFL Backlight with Wire Harness and Inverter Combo for Dell Laptop/Notebook Inspiron 1410 1420 1425 1427 1428 630m 640m B120 B130 E1405 Series Latitude 120L D620 D630 D630c D631 E5400 Series Precision M2300 M2400 Studio 1435 Vostro 1400 XPS M140 Sale Price: $44.87 |
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Does your Laptop LCD screen or Destop LCD Monitor appear to be getting dimmer? is the screen flickering or suffering from the infamous pink hue (Red Tint) or simply just dark Screen? This is probably caused by the defective CCFL backlight or Inverter Board, and all you need to do is replace them... |
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15.4"WXGA/WXGA+/WUXGA LCD CCFL Backlight with Wire Harness for Dell Laptop/Notebook Precision M4300 M4400 M65 M70 Studio 15 1535 1536 1537 Vostro 1000 1500 1510 1520 2510 500 XPS M1530 Inspiron 1300 1501 1520 1521 1525 1526 6000 6400 E1505 Latitude 131L D531 D810 D820 D830 E5500 E6500 Sale Price: $8.97 |
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Does your Laptop LCD screen or Destop LCD Monitor appear to be getting dimmer? is the screen flickering or suffering from the infamous pink hue (Red Tint) or simply just dark Screen? This is probably caused by the defective CCFL backlight or Inverter Board, and all you need to do is replace them... |
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Inverter Dell Inspiron 1520 1525 1526 1521 Sale Price: $6.65 Used From: $6.95 |
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Dell LCD Inverter Board Compatible models: DELL Latitude: D420, D620, D630, D640 Series Dell Inspiron: B120, B130, 630m, 640m Dell Inspiron: 1505 1520 1521 1525 1526 Series (14... |
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Original HP Compaq Pavilion DV1000 14.1" LCD Inverter Board Sale Price: $12.74 |
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14.1" LCD Inverter Board For HP Compaq Pavilion DV1000 ****Item Compatible: HP Compaq Pavilion DV1000 ****Package include: 1 x Inverter Board |
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Inverter Cable for 13" Macbook Model A1181 Model Identifier 2,1 3,1 4,1 Sale Price: $18.99 Used From: $12.99 |
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LCD not working in your Macbook and you already fixed the LCD? It may be your inverter cable. |
Backlight Inverter
How to troubleshoot laptop LCD SCREEN with backlight failure
First of all, I tested this laptop with an external monitor connected to the VGA port and the external monitor worked absolutely fine. I was able to get crystal clear image on the external screen even though the internal screen didn’t light up. If the external screen works fine, then most likely there is nothing wrong with the video card. http://www.sunvalleyus.com/LCDPanel/
Notebook display assembly diagram
After that I took a closer look at the laptop LCD and noticed that the screen is not completely black. The laptop screen still works but the image is very very dull, you barely can see it. It means that the screen still gets data signal from the video card, but for some reason the backlight lamp doesn’t work.
From my experience I know that this problem can be related the lid close switch, faulty inverter board or bad backlight lamp. I checked them one by one.
If you have a similar problem, make sure the lid close witch moves freely. The lid switch is a small button located close to the LCD screen. This button triggers the hibernation or sleep mode when the screen is closed. If the lid close switch is dirty, it might get stuck inside the laptop case and cut off the power from the inverter board. The inverter board works as a power supply for the backlight lamp and if there is no power coming to the inverter board, the backlight lamp will not light up either.
In my case the lid button worked properly, it didn’t stuck inside the case. When I was pressing on the button very fast, I was able to light up the screen but only for a fraction of a second. The image wasn’t bright and it had a pinkish tone. A pinkish tone usually indicates a problem with the backlight lamp, not the inverter board.
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Even though I suspected the backlight failure, I decided to test this laptop with a new inverter board just in case. But it didn’t help. The screen didn’t light up even after I replace the inverter board. So, I was right, this problem is not related to the inverter board.
Finally, I disconnected the screen backlight lamp connector from the inverter board and connected my test backlight lamp (I removed it from another cracked screen). For the test purpose, you can buy a new backlight lamp here. Try to find a backlight with the connector already attached to it, so you can plug it into the inverter board. Make sure the connector on the backlight lamp is similar to the connector on your LCD screen.
As soon as I turned on the laptop, my backlight lamp lighted up. Yep, that’s the problem. The laptop screen has a faulty backlight lamp.
Here’s another laptop with backlight failure
This laptop video fails in a little bit different way. In this case the backlight lamp hasn’t failed completely.
The laptop starts with video on the screen but the background has reddish tone, the screen flickers and it makes noticeable buzzing noise coming from the backlight and inverter area. After a few minutes the backlight turns off by itself and the buzzing noise stops. When the backlight is off, the image on the screen is still visible but it’s very dark.
I removed the screen bezel and connected my test backlight lamp.
My test backlight works absolutely fine. The lamp doesn’t flicker and there is no buzzing noise. So, this laptop needs a new backlight lamp.
You can also buy new LCD Screens on http://www.sunvalleyus.com/Panel154Inch/
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