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How to replace a video cable - Gateway M-7351u Notebook

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In a Gateway M-7351u Notebook PC?

1) http://www.insidemylaptop.com/replace-broken-lcd-screen-gateway-m-series-laptop/

2) http://www.insidemylaptop.com/replace-keyboard-gateway-m-series-notebook/

Motherboard side of video cable, should be under the Switch Cover, (LED indicators, Power On button, speakers, etc), or under the Keyboard close to the Switch Cover.

Don't forget to remove ALL power. Remove the AC adapter (Charger), and Battery. (Use CARE. Wires going to Switch Cover. Do not cut them by accident, or pull on them when removing Switch Cover )

http://www.ebay.com/itm/GATEWAY-MC7310U-MD2614U-LCD-VIDEO-CABLE-DD0AJ2LC000-/390069940144

Regards,
joecoolvette

Posted on Oct 25, 2012

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Why is my replaced lcd screen not lighting up?


1) Wrong LCD screen

2) Video Cable (LCD Cable) is not connected tightly.
Motherboard side, or LCD screen side; or both.

3) IF, a screen Inverter is used, the small cable from the Video Cable, that connects to the screen Inverter; is not connected, or has a loose connection to it. (screen Inverter)

4) An LCD screen, and a screen Inverter are a Matched unit.
If it's the wrong LCD screen......................?

5) IF, a screen Inverter is used; the diagnosis was wrong, and the LCD screen was replaced.
90 PERCENT of the time, the fault is a bad screen Inverter.

A) Laptop's LCD screen uses a CCFL, (Or more than one), for a Backlight; the laptop uses a screen Inverter.

Diagnostic flowchart leads from Graphics Chipset, to Video Cable, to screen Inverter, THEN, LCD screen.
Expensive LCD screen was replaced, instead of the actual part that needed replacing;
Video Cable: $9 to $22
Screen Inverter: $9 to $22

LCD screen: $60 to $245

B) Laptop's LCD screen uses LED backlighting, and does NOT use a screen Inverter:

Diagnostic flowchart is;
A) Video Cable;
A Video Cable should have it's connections PHYSICALLY checked.
You have to try to push the connectors in tighter.
Visual inspection alone will NOT do.

Making sure the Video Cable connections are tight, and this does not fix the problem, then the Video Cable needs to be removed; and every wire in the Video Cable checked for Continuity with a multimeter set to OHM's. (1K)

Not feasible, then take the Video Cable down to the nearest small computer shop; and have the resident tech check it for Continuity.
Should only be a few bucks.

Or just replace the Video Cable.
(Parts changing I know, but...........?)

Primer:
An LCD screen cannot produce light. It needs an additional light source.
A Backlight is the additional light source.

A Backlight can be a CCFL, (Or more than one), or a series of LED's.
(Light Emitting Diode)

A CCFL is a Cold Cathode Fluorescent Lamp. (Bulb)
Similar to Fluorescent lighting used in homes, and businesses; but on a MUCH smaller scale.

Average thickness is 2mm. That is a little large than 1/16th of an Inch.
Average thickness is almost as long, as the LCD screen is in height.
View the last 8 photos,

http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/

A screen Inverter is used to convert the power, (Electricity), from the laptop; for the LCD screen, and Backlight.

As previously stated, Backlighting that uses CCFL, uses a screen Inverter.
LED backlighting MAY, or MAY NOT use a screen Inverter.
When the LED backlight technology first came out, it seems some did use a screen Inverter.
It also seems as the technology advanced, LED backlighting does Not use a screen Inverter.

Regards,
joecoolvette

May 14, 2013 | Sony Computers & Internet

2 Answers

Back light sometimes works


If your laptop appears to boot up and the hard disk LED flashes, then the problem is probably a back light fault. This can be a faulty inverter or a faulty CCFL lamp. Please click on this link and follow my instructions to identify the fault and possible fix :- http://www.fixya.com/support/r3598095-faulty_laptop_lcd_screen

Nov 10, 2012 | Acer Aspire As5250-0327 320gb - Perfect...

1 Answer

Horizontal blinking lines appear on the screen of Sony Vaio VPCEL 10EL


Possible cause:

1. Video card failure.
2. Bad connection between video cable and LCD screen.
3. Bad LCD screen.
4. Faulty video cable.


Possible troubleshooting steps and repair solution:

1. First of all, test the laptop video output on the external monitor. If you see same flashing lines running through the image on the external monitor, you have a problem with the video card. If flashing lines appear only on the laptop screen, the failure is not related to the video card.

2. Just in case, try re-seating the video cable connectors on the motherboard/video card and maybe the back of the LCD screen. It' s not likely but possible that connection is loose and reconnecting the cable will fix the flashing lines.

3. If re-seating the cable connectors doesn't help, most likely you have a faulty LCD screen. The LCD screen has to be replaced.

4. If replacing the screen doesn't help, try replacing the video cable. It's very unlikely that this problem is related to the video cable but there is a slight possibility of that.

Oct 26, 2012 | Computers & Internet

1 Answer

Aspire 5516 internal screen cable


If it was working before, then before replacing the video cable I suggest you reseat the video cable/connector to the motherboard.
Yes you can replace the ribbon cable.
You maybe be able to get one from this WEB site.
LCD screens and Inverterswww.lcdparts.net

Mar 24, 2012 | Acer Aspire 5516-5063 Notebook

1 Answer

My Proview PA-32JK1A my component video wont


Replace the RCA component video cable.Should work after that,not yes the cable box.Should reboot the cable box buy unplug,replug it an hour later or call the cable company for the replacement box.

Mar 16, 2010 | Proview PA-32JK1A 32 in. LCD Television

1 Answer

Xbox 360 Video Problem


HI. Replacing the video cable would also be my first suggestion. The Xbox AV cable has many manufacturing faults. If you are using the original cable tat came with the unit, I suggest to replace it with newer model.

Now, if you experience the same issues after replacing the original AV cable, this will lead to a more serious issue that concerns the HANA chip. This chip is responsible for the transfer of information through the AV cables. The transfer port(the AV cable end that is inserted into the Xbox), is directly connected to this actual chip. If the internal connections to this chip have failed, or are failing, this will be the culprit. The chip will need to be replaced, or the solder joint will need to be resolderd. If this unit is still under warranty, I would suggest to contact Microsoft for a free repair ticket. Do Not open the case if the unit is still under the manufactures warranty. This action will void the warranty.

NOTE_ Try replacing the AV cable first.

Jan 19, 2010 | Microsoft Xbox 360 Console

2 Answers

Monitor changed to yellow colour.... what is the problem...?


Monitors mix the 3 "primary" colours, in various proportions, to produce all other colours.

Mix equal parts of all 3 colours, and you get WHITE.
Mix equal parts of only 2 colours, and you get YELLOW.

So, either:
1. your computer's video-card is not sending the 3rd colour;
2. your video-cable between the computer and the monitor is broken, and is not transmitting the 3rd colour;
3. your video-cable is not TIGHTLY connected at each end;
4. the electronics inside the monitor that SHOULD be producing the 3rd colour have failed.

Try connecting the monitor to a different computer, with the same video-cable. If it works correctly, your video-card is the problem.

Try connecting the monitor with a different video-cable, to see if replacing the cable fixes the problem.

Try connecting the monitor to a different computer, with a different video-cable. If it still is incorrect, then the monitor needs repair/replacement.

Jan 14, 2010 | Computers & Internet

2 Answers

I'm getting audio but no video using non-HDMI cables


Make sure all the cables ARE plugged in! If they are, then you're television/cable has problems. Solution: simple! Replace TV/cable!

Nov 26, 2009 | Microsoft Xbox 360 Console

1 Answer

Screen Problems with my Laptop


hi dear

1. That can be connection related problem. I check connection between the video cable and the LCD screen, try reconnecting the video cable. It’s necessary to take apart the display panel, unplug the video cable from the connector on the back side of the LCD screen and then plug it back in. In some cases reseating this connection helps. 2. If reconnecting the video cable doesn’t help, here’s what I do in this case. While the display panel is still disassembled, I turn on the laptop and wait until image appears on the screen. Then I move the video cable a little bit without touching the LCD screen. If moving/touching the video cable affects image on the screen, it’s possible that there is a problem with the cable. Apparently there’s a short somewhere inside the cable. In this case, replacing the video cable may fix the problem.
3. If reconnection the cable doesn’t help and moving/touching the cable doesn’t change image at all and the only way to get better picture is moving/touching the LCD screen itself, apparently there is a problem with the LCD and it has to be replaced.


oke


Posted by Laptop Freak on March 22nd, 2008 Filed in Video Problems, LCD Screen Issues, LCD Displays Lines -->

Mar 24, 2008 | Compaq Presario 700 470024-192 Notebook

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