Question about Compaq Presario CQ60-220US PC Laptop

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Have a Compaq Presario CQ60-420 changed the lcd screen, also reaplaced the lcd inverter. But the screen is still fuzzy? Any sugesstions please

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It could be the graphics chip on the motherboard.

Posted on May 25, 2011

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2 Answers

Display problems


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

Feb 13, 2013 | HP Compaq Presario V2000 Notebook

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Laptop lcd screen flickering


compaq is worst......i m also having the same problem with the LCD of my laptop compaq presario CQ40....wat to do????

Jun 30, 2012 | Compaq Presario CQ40-104AX CQ40-104TU...

1 Answer

My hp compaq Presario V6500 has been damaged and a computer dude in Bathurst NSW said we need a bulb replaced in the screen as it won't light up. Computer functions via TV. R there any local repairers for...


The monitor screen on your laptop is an LCD screen.

An LCD screen cannot produce enough light by itself. It needs an additional light source.
The additional light source is a 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.

LCD screens are a composite of layers. The layers are held together by a metal frame, much like a picture frame.
The Backlight is usually located on one side, accessed after removing one side of the metal frame.

As stated, a Backlight is a very small type of Fluorescent lamp, (Tube)
Very fragile, easily breakable, and not usually approached by one who has very little, or no experience in replacing.
More common the entire LCD screen is replaced, which includes the Backlight already installed.

A laptop also needs an Inverter to provide power, both for the LCD screen, and the Backlight.

90 percent of the time the fault is the Inverter.
I repeat, 90 percent of the time the fault is a bad Inverter.

An Inverter is cheaper than an LCD screen, and MUCH easier to replace than a Backlight.

Allow me to show you replacing an Inverter on an HP Pavilion dv6000 series laptop.
Granted, it isn't an HP Compaq Presario V6500 series, but the principles still apply the same,

http://www.insidemylaptop.com/remove-replace-lcd-screen-inverter-hp-pavilion-dv6000-laptop/

I can also provide a free link, to the Service Manual for an HP Compaq Presario V6500 laptop, direct from HP Support,

http://h10025.www1.hp.com/ewfrf/wc/manualCategory?lc=en&dlc=en&cc=us&lang=en&product=3369429&

In the list click on;
Compaq Presario V6500, V6600, and V6700 Notebook PCs-Maintenance and Service Guide

This is a PDF file.
Allow up to 30 seconds to see the first page, and an additional time may be needed to fully download.

In the Bookmarks menu on the left click on the + sign next to;
1) Removal and replacement procedures
2) Component and replacement procedures
3) Display assembly

And/or go directly to Page 61 to view the Inverter location.

One example of an Inverter for an HP Compaq Presario V6500,

http://www.sparepartswarehouse.com/Compaq,Presario,V6500,Laptop,Inverters.aspx

Granted this is not what you asked for.
My premise is to teach, and hopefully save people money.

If you have additional questions please state in a Comment.
Regards,
joecoolvette

Mar 06, 2011 | Compaq 449901-001 - HP Presario V6500...

1 Answer

I have a brand new compaq presario laptop and all of a sudden upon start up the screen is fuzzy and scrambled and the colors are a very pink undertone. How do I fix this? I have checked the color...


Take it back to where you purchased it maybe they will fix it free of charge if its new because the display panel is bad or the video inverter is faulty.

Dec 27, 2010 | Compaq Presario Notebook

1 Answer

Compaq cq60 - screen black - laptop on


Try attaching an external monitor to the laptop & see if you could get any display on it. If this is successful, then you might have either 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

Sep 08, 2010 | Compaq Presario CQ60-220US PC Laptop

2 Answers

The screen's back light seems to be off but i can


Either the lcd inverter or the lcd itself is bad. If the machine is under warranty then call HP to get it serviced otherwise

254108-001 is the part number for the lcd

Couldn't find the part number for the inverter board but I found one on Ebay here:

http://cgi.ebay.com/compaq-presario-700-inverter-board_W0QQitemZ260535107682QQcmdZViewItemQQimsxZ20100109?IMSfp=TL100109224006r14935


Jan 23, 2010 | Compaq Presario 700 470024-192 Notebook

1 Answer

REPACE A CRACK SCREEN OF A COMPAQ PRESARIO F750US


LCD screen replacements are available on the Internet. Make sure you select one that suits your laptop because the video and inverter connectors can be different between makes and models even though they maybe the same screen size.
Have a look at LCD Parts WEB site for parts, service and DIY info use this link :-
www.lcdparts.net

Sep 11, 2009 | Compaq Computers & Internet

1 Answer

Compaq Presario R3000 dim screen but not dark


Sounds like the auto-dim in the BIOS is set too low. Fortunately the Compaq R3000 allows you to adjust the brightness right from the keyboard. Hold down the [FN] function key while tapping the [F8] key will brighten the screen, while [FN]-[F7] will dim it. The settings are different for running on AC power and battery, so you must do each individually.

Dec 31, 2008 | Compaq Presario 700 470024-192 Notebook

1 Answer

LCD Screen is black


It could be either, if you can get another LCD screen (same make/model) you can swap to ckeck it out.
You could check the inverter by touching its output and if you get a bit of an electrical shock then you know the inverter is working or check it with a multimeter if you don't like electric shocks.

Dec 27, 2008 | HP Compaq Presario V2000 Notebook

1 Answer

Compaq Presario R3000 dimmed LCD screen


If your inverter is good I,de say your backlight is going bad, I just replaced mine in a sony vaio and now it seams to bright.

Oct 20, 2008 | Compaq Presario Notebook

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