Question about HP PavilionCongo Motherboard Skt462 Via KM13A AMD 2 Dimm Motherboards

6 Answers

ZE5470 us Hp Laptop Screen problem

This laptop will work fine conected to a External monitor , but the lcd screen backlight does not work but I can see very dimly the proper images on the screen .

I tried a used replacement from e-bay and the same thing happen again no back light but still screen images can still be seen.

supposedly the replacment had been tested for back light and inverter and working oder

Ihave a working 4100 series can iuse that in any way to help determ what I need

Posted by on

  • JOhn190 Aug 22, 2008

    Im not sure you understand we are talking about a laptop can see images no backlight only with ext monitor hooked

×

6 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Master:

    An expert who has achieved Level 3.

  • Master
  • 623 Answers

For parts
cgi.ebay.com/LCD-Inverter-Backlight-HP%2FCompaq-2100-2500-2200-NX9010_W0QQitemZ350090317479QQcmdZViewItem... - 110k

backlight repairs
http://www.fonerbooks.com/laptop_5.htm

laptop screen repairs
http://www.sparepartswarehouse.com/Laptop,LCD-Screens-Repair.aspx

Posted on Aug 22, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • HP Master
  • 19,396 Answers

You need to test inverter and backlight voltage. If they are fine, lamp is not monted in the right way.

Posted on Aug 22, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Master:

    An expert who has achieved Level 3.

  • Master
  • 848 Answers

Try this steps for screen replacement from one laptop to other

Close laptop and lay it down on it's lid(bottom facing upwards).
Remove battery.
Remove EVERY screw you can see on the underside (even the one that holds the cmos battery(as I think it doubles as an anchor for the keyboard). Most are small crosshead, but you may need a flat top for one or two.
There are also 'hidden' screws - on the front edge(3 I think) and either side of the back (where the usb/video ports are)(2). The panels that hide these look like little plastic square blanking plates. These just pry off(they are just stuck on, the screws are behind them) I would hold off removing the ones off the back (4 screws) for the moment as these attach the screen to the chassis
Once all screws removed, turn laptop over and open it up. You should now be able to prise off the keyboard (use a small screwdriver or knife to get under the keyboard, it is held by a connector towards the centre but, should pop off provided the screw from the underside is removed.
Once keyboard is off, there is one screw to remove, which holds the screen to the motherboard, and one or two others securing the rest of the keyboard surround.
Remove the keyboard surround, and you should be able to see the anchor points in the left and right corners of the laptop chassis (under the screen).
You should then be able to remove the last 4 screws from the back of the case (the hidden ones). Screen should lift off. Then do the opposite to put lid back on.

Posted on Aug 22, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Master:

    An expert who has achieved Level 3.

  • Master
  • 521 Answers

Yes u can use it with the other one

Posted on Aug 22, 2008

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

    Champion:

    An expert who has answered 200 questions.

  • Expert
  • 310 Answers

Adjust the resolution and picture setting and then try it.

Posted on Aug 22, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 435 Answers

Hello

Posted on Aug 22, 2008

  • Narmada Anand
    Narmada Anand Aug 22, 2008

    The problem is with the backlight inverter. A very hard piece to find, and one ake the inverter out to find the part number. You can find it at Bliss Computers at http://www.247laptoprepair.com/
    Replace the inverter and your screen would worke fine for only $75!

    Note: inverter won't always be the cause of the problem, but its cheaper to try fixing that first.



    Thanks

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Monitor is dark. how to fix?


Walt, hold the Fn key down again, and tap once more on the Acer, F5, Display Toggle-Over key.

There are at least 3 display options available;

1) Internal display of laptop ONLY

2) Internal display of laptop AND external display

3) External display ONLY.

Were you just using the external display for more 'display real estate room', or was/is there a problem with the internal display of the laptop?

Was no problem? Is now? Even when using the guidance stated above for the Fn and F5 key?

Then if your laptop uses a CCFL for a Backlight, it also uses a screen Inverter. Screen Inverter is bad.

If it doesn't use CCFL/s for a backlight, and uses LED backlighting, replace the LCD screen.
The LED backlighting is incorporated in the LCD screen assembly, and you ain't replacing it.
Replace the entire LCD screen.

Post the laptop manufacturer name, and model number in a Comment. Model number is on Bottom of laptop.


Try to hurry as I'm going to a meeting with the head of General Motors, (Obama), and later with Bill Gates.





OH I'M JUST KIDDING!



Regards,
joecoolvette

Nov 14, 2012 | Computers & Internet

1 Answer

Compaq Presario CQ60-220 US, the monitor works but, there aresquiggly green lines along the right side that causes the image to show green.


Find out easily if the problem is with the Display Assembly, or the integrated graphics chipset on the motherboard.

[ A) When I refer to the Display Assembly, the reference will be to only the parts needed to repair. Not the entire display assembly.
Only the LCD screen, or screen Inverter, or Backlight.

B) The graphics used for a Compaq Presario CQ60-220US Notebook PC, is an Intel GMA X4500 graphics chipset.
It is Integrated Graphics.

The graphics chipset { GPU } is soldered directly to the motherboard, via a BGA surface mount.

1) http://en.wikipedia.org/wiki/GPU

2) http://en.wikipedia.org/wiki/Ball_grid_array

3) http://en.wikipedia.org/wiki/Intel_GMA#GMA_X4500

Chip and Chipset are slang terms for I.C.
Integrated Circuit ]

A) Laptop OFF, monitor OFF, attach a VGA monitor to the VGA port on the Pavilion CQ60-220US Notebook PC.

(The VGA port is on the Left side as you face the laptop. Third port from the back. Color may be different, but this is an example of a VGA cable, and VGA port, { Connector },

http://en.wikipedia.org/wiki/VGA_connector )

You can use a VGA monitor, (CRT. Looks like a small TV), or a flat LCD screen with a VGA cable.

Monitor plugged in, turn the monitor on. If a CRT model allow the monitor to warm up.
Turn the laptop on.

By default, the external monitor, (VGA monitor), should show what the internal monitor of the laptop, does.

IF not, press, and hold down on the Fn key. (Bottom row of Keyboard keys. Second key from left)
While holding down tap on the F4 key at the top of the Keyboard.

You may have to tap more than once.
There are at least three settings;
1) Notebook internal monitor ONLY
2) Notebook internal monitor, AND external monitor
3) External monitor ONLY.

IF, the external monitor shows exactly the same problem as the internal monitor of the laptop, the problem is the Graphics Chipset.

Unless you have access to a BGA rework machine, and the graphics chipset, it means replacement of the motherboard.
(Cost of replacing graphics chipset, versus motherboard replacement, a motherboard replacement may prove to be more cost effective )

If the graphics are fine on the external monitor, your problem lies within the Display Assembly.

Could be the LCD screen, or screen Inverter, or Backlight.

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

A Backlight is a CCFL.
Cold Cathode Fluorescent Lamp.

Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale.
A screen Inverter is used to convert the electricity, (Voltage and Hertz), of the laptop, for the LCD screen, and Backlight.

90 PERCENT of the time the fault is the Inverter

An LCD screen is made up of layers. These layers are held in place by a screen Frame. Resembles a picture frame that comes apart, and is made of metal.

The Backlight is incorporated within the inside of the frame, and next to the layers making up the LCD screen. (Some models have more than one Backlight)

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


For this reason, it is not a task for those who do not have the skills.
The LCD screen layers MUST be kept in the Exact same position, as they were from the factory.
One small misalignment, and your LCD screen is useless.

Due to this, and many who can easily perform replacing an LCD screen, the LCD screen, and Backlight are sold as one unit.

However, the screen Inverter is more easily replaced. It is located behind the Display Bezel, and attached at the bottom of the LCD screen area.

(The plastic front frame around, and in front of the LCD screen, is the Display Bezel. Resembles a thin plastic picture frame )

The screen Inverter is also MUCH more cheaper, than an LCD screen/Backlight replacement.

One example of a screen Inverter, for a Compaq Presario CQ60-220US Notebook PC,

http://www.battery-adapter.com/product_info.php/products_id/3763/vCQ50

Reasons I would recommend an average user to replace the screen Inverter, (If the display is okay on the external monitor),

A) Diagnosing the screen Inverter; Diagnosing whether it is bad.
Requires an Expensive multimeter that is Very sensitive.

B) 90 PERCENT of the time the fault is the Inverter

C) Cost
Assuming you do not have an expensive/sensitive multimeter, it is down to just being a parts changer, of a sort.

Due to the price, ratio of this part being the problem, and ease of replacing, this is a no brainer item to replace first.

To summarize;

A) IF, the display on the External monitor is the same as the Internal monitor of the laptop, a replacement motherboard is in the future.
(You yourself can replace. Read on)

B) IF, the display on the external monitor is good, then you may wish to replace the screen Inverter.

C) Replacing the screen Inverter does not repair the problem?
LCD screen with Backlight is next.

HP Support > Compaq Presario CQ60-220US main page,

http://h10025.www1.hp.com/ewfrf/wc/product?product=3860108&lc=en&cc=us&dlc=en&lang=en&cc=us

Click on Manuals

Scroll down, and click on -
Compaq Presario CQ60 Notebook PC HP G60 Notebook PC - Maintenance and Service Guide

This is a free Service Manual from HP, in PDF file form.

Disassembly/assembly is in the manual.

[ Disregard the following if you are aware;
The computer you are using now has Adobe Reader on it, which uses PDF files.
After you click on the link on HP Support, it may take up to 30 seconds before the first page comes up.
I recommend upgrading ( Free) to Adobe Reader X { 10 } if the computer you are using, does not have this version on it ]

For addditional questions please post in a Comment.

Regards,
joecoolvette

Nov 25, 2011 | Compaq Presario Notebook

1 Answer

I have a hp laptop. was on line and screen went black. and will not show again. it strats up sounds but black screen.what do i do


1) Do you have a VGA monitor that you can use for an external monitor?
{VGA monitor is also referred to as a CRT monitor. Looks like a small TV}

The back of the laptop, or side, has a VGA port. The VGA monitor is plugged into it.
{Laptop off}
Then the VGA monitor is turned on, and allowed to 'come to life'.

Now turn on the laptop. Press the Fn key down on the keyboard, and hold it down.
Now press the Monitor toggle over key.
Since you did not state the HP laptop Model Name, and Model Number, I can only give you generic guidance on this.

The monitor toggle over key has a monitor screen symbol on it. It will be one of the F keys.

(It's an External Monitor toggle key.
Press it one time and the display toggles over to an external monitor.
Press it again, and both the laptop LCD screen, and the external monitor have a display on them.
Press it once more, and the display goes back to the laptop's LCD screen )

If display shows up on the external monitor, you have a problem with the display of the laptop.

Primer:
An LCD screen cannot produce enough light by itself. It needs an additional light source.
A Backlight is used as an additional light source.

A Backlight is a CCFL.
Cold Cathode Fluorescent Lamp {Bulb}
Similar to the fluorescent lighting used in homes and businesses, but on a MUCH smaller scale.

{Average Backlight is 3 to 5 inches long, and half the diameter of a No.2 pencil.
The Backlight is located on one edge of the LCD screen}

An Inverter is used to provide power for the LCD screen, and the Backlight.

90 percent of the time the problem is the Inverter.

Inverters are relatively cheap, and if I knew the Model Name, and Model Number of your HP laptop, I could give you a link to HP Support where you could download the Service Manual for free.

This way you would have a manual to show, and detail how to replace the Inverter, and I could guide you.

I could also give links for your perusal for Inverters.

There is one more thing however.

HP Pavilion DV2000, DV6000, and DV9000 series laptops, have a graphics chip overheating problem.
The laptop comes on, the blue indicator LED lights light up, but the LCD screen is black.

This video explains why, shows a solution to fixing the problem, and details out a lot more than I am privileged to state here,

http://www.youtube.com/watch?v=bnkQNmKauEc

Have further questions regarding any of the above, please state in a Comment.
(Believe upper right of your page)

Regards,
joecoolvette

Dec 02, 2010 | Computers & Internet

1 Answer

No screen showing up


This might be a sign of a faulty LCD cable or screen inverter board.
The LCD cable transfers data signal from the motherboard & video card to the LCD screen. It also supplies high voltage DC power to the screen inverter board. The screen inverter board works as a power supply for the backlight lamp mounted inside the LCD screen. It converts low voltage DC power to high voltage AC power needed for the backlight lamp.

Test with an external monitor attached to the laptop. If you get display on the external monitor, then this confirms the case.

Aug 21, 2010 | HP Computers & Internet

1 Answer

Blank screen on my acer laptop, it boots up, and i have put it on an external monitor, and it brings the screen up on the laptop,also tried changing the screen from 1 to 2 so the lcd is not broken, tried...


If an external monitor works fine then maybe you're having issues with the LCD's backlight. It happened to my laptop and I had to replace the whole LCD itself.

May 11, 2010 | Acer TravelMate 7120T (91.42A01.605) PC...

1 Answer

Acer Aspire 5100 Laptop Screen Works Intermittently


Since you have video with an external monitor your lcd panel is going out.This is not hard to repair only costlyhttp://www.insidemylaptop.com/remove-lcd-screen-replace-inverter-board-acer-aspire-5100-laptop/

Apr 06, 2010 | Acer Aspire 5100 Notebook

1 Answer

My laptop monitor flickers ramdomly....the grafix


This could be a faulty CCFL lamp.
To determine if you have a LCD screen, inverter or video card problem, read this and follow these instructions.
Defective CCFL backlight, it may have the following symptom: Screen flashs on red/pink and off. Picture stays on in red and slowly be come normal. Picture flickering with dim display or appear black. Picture flickering on and off. All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp.
Connect an external monitor to your laptop and power the monitor up first then the laptop, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight. Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out
www.lcdparts.net
for parts, repair service and DIY info.

Jul 14, 2009 | HP 510 Notebook

1 Answer

No backlight in my lcd but the whole laptop work properly,


Try to connect external monitor to your laptop then hit the short cut keys(see your manual)to use dual monitor. if you got screen on dual monitor. Try to check your laptop screen if something can still be view from screen, if you have then backlighting circuit is to be check. Practical solution is to bring it to a shop if you are not inclined on fixing it yourself.

Jun 16, 2009 | HP Hewlett Packard LCD Display for...

1 Answer

Lcd screen black on laptop. External monitor works.


Defective CCFL backlight may has the following symptom:
  • Screen flashs on red/pink and off.
  • Picture stays on in red and slowly be come normal.
  • Picture flickering with dim display.
  • Picture flickering on and off.
All these symptoms indicate that the LCD backlight lamp (CCFL Lamp)
has reached the end of the life and all you need to do is replacing the CCFL lamp


Connect an external monitor to your laptop and power it up, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight.

Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
Check out www.lcdparts.net for parts, repair service and DIY info.

Mar 31, 2009 | Dell Precision M60 Notebook

Not finding what you are looking for?
HP PavilionCongo Motherboard Skt462 Via KM13A AMD 2 Dimm Motherboards Logo

137 people viewed this question

Ask a Question

Usually answered in minutes!

Top HP Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18385 Answers

Tony

Level 3 Expert

2600 Answers

mukhtar21 shaikh
mukhtar21 shaikh

Level 3 Expert

2017 Answers

Are you a HP Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...