Question about Compaq Computers & Internet
Inverter is new, the lcd cable is also new.
A very old PC, CQ60-nnn n what is the nnn sub model ?
-100, -200, on up. to 600...??????????
7 years old?
that LCD is bad, as will be CCLF tubes soon if not now.
CCFL tubed PC sux. do no put cash into any CCLF screen of any kind. ever, now. ok?
BAD LCD it is. and more, I promise, on any 2008 PC.
Posted on Aug 21, 2018
Sounds like an inverter problem. If the power supply is internal replace the capacitors coming out of the voltage regulators. These are usually 1000mf and/or 470mf. If that doesn't do the trick look up the numbers on the 8-pin chips that drive the secondary transformers on the inverter to see if they are getting the right voltages.
Posted on Feb 20, 2008
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.
Posted on Dec 31, 2008
Defective CCFL backlight may has the following symptom:
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.
Posted on Mar 31, 2009
have you any other A/V ports out ie Svid etc if so try that via an A/V lead, if that works reset your bios settings to minimal settings, if that doesnt work search the 'net someone somewhere has had the same problem! try shining a flashlight/lamp onto the screen whilst booting up, if you see anything on the screen then your inverter is definatly gone and yes it could still be your inverter! your laptop may have software/hardware issues with an external monitor?
Posted on Jul 14, 2009
The problem you have is caused by a defective LCD inverter.
They really really fragile and the job of replacing them can be quite tedious.
There is not other reason for your screen corner to became dark.
Send it back and tell them that the replaced part is defective or it was not properly installed.
I hope this help you out.
Posted on Aug 29, 2009
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Several things can cause your Dell Latittude D600 laptop's LCD screen to stop working.
Two of the most common causes relate directly to the inverter board and the backlight lamp.
The inverter board is a thin circuit board placed inside the LCD panel.
It's main function is to transfer power from the motherboard to the backlight bulb inside the LCD screen.
If the inverter board goes bad or the backlight lamp burns out, the screen will appear dim or eventually go completely black.
Turn off the laptop, unplug the power cable, close the LCD panel and place the laptop face down.
Remove the battery pack from its compartment on the bottom of the computer.
Flip the laptop back over and reopen the display panel all the way until it is in a 180-degree position.
Insert a flat head screwdriver into the right side of the keyboard bezel.
This is the plastic strip situated above the top row of keyboard keys. Carefully pry the bezel from the laptop.
Remove the two Phillips screws located above the top row of keyboard keys.
Grasp the top edge of the keyboard, tilt it upward and lay the keyboard face down on the palm rest area.
Unplug the keyboard's ribbon cable from the motherboard connector.
Carefully remove the entire keyboard from the laptop.
Disconnect the video and speaker cables extending from either side of the LCD panel to the motherboard.
Loosen the Phillips head screws on each LCD panel hinge.
Carefully lift the entire LCD panel off the laptop's base.
Relocate the panel to a flat work surface, and place the panel so the screen is facing upward.
Use a thin, flat head screwdriver to pry the rubber screw covers from the LCD panel's front plastic cover.
Remove the Phillips head screws revealed by the rubber covers.
Carefully remove the front plastic cover from the display panel.
Locate the inverter board situated below the LCD screen, inside the bottom edge of the display panel.
Disconnect the two cables from each end of the inverter.
Remove the two Phillips head screws fastening the inverter to the display panel.
Carefully lift the inverter board out of the display panel, and dispose of it.
Repeat this procedure in reverse to install the new inverter board, and reassemble the laptop.
Hope this helps
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