Where are lcd cable and inverter board located

Locate the inverter board inside the bottom edge of the LCD panel just below the LCD screen. Turn on your Multimeter device and enable "DC Mode" on the Multimeter. Attach the positive (red) probe to Pin 1 on the inverter board. There are two power cables connected to each end of the inverter board.

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

The HP is a flat screen monitor used with many desktop computers. When the LCD on your HP monitor goes white, it is an indication that your monitor's inverter board has gone bad. The inverter board is a small circuit board that transfers power from the monitor's main circuit board to the LCD screen. Replacing the inverter board means dismantling the HP monitor.

1. Power down your computer and unplug the HP monitor cable from the back of your desktop. Disconnect the power cable from the back of the monitor. Relocate the monitor to a flat work surface. Place the monitor with the screen facing downward.

2. Remove the Phillips-head screws from the monitor's base stand and from the back cover. Lift the base stand off of the monitor and remove the back cover. Peel away the foil from inside the monitor around the internal circuit board.

3. Locate the inverter board near the bottom of the monitor's casing. Unplug the power cables from either side of the inverter. Loosen the Phillips-head screws from the inverter board. Lift the old inverter out of the monitor's casing and set it aside.

4. Place the new inverter inside the monitor. Replace the Phillips-head screws and fasten it in place. Reconnect the power cables to the connectors on each side of the new inverter. Replace the foil around the outside of the main circuit board.

5. Replace the back panel and base stand, and their retaining Phillips-head screws

I hope you find it very helpful.
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Sounds like either your backlight bulb has failed or the inverter that powers the bulb has failed or a connection has come loose from the inverter to the LCD panel. Unless the laptop was "Jarred" or dropped, I doubt the bulb has burned out....most likely if no damage occued, the inverter has failed or there is a loose connection with the inverter.

Hi.

If an LCD TV has sound but no picture do the following:

Use the source button to ensure that source is not set to the wrong input.

Try unplugging power cord for ten minutes, to ensure it is not a setting problem.

Check all the video cables at the back of TV.

Check Light /Color settings.

If problem persist and does not depend on external receiver or settings, then it is likely an internal fault.

If it has sound but no picture then one of the following parts is faulty, and must be tested and replaced:

The inverter is the high voltage board that provides variable power to the backlight lamp. This is the most common. When inverter is faulty you can get no picture, or a very dim picture that can only be seen by pointing a torch light with a 45 degree angle on the LCD surface from very near distance.
The inverter must be tested by reading voltages with a multimeter.

The LCD ribbon cable/LCD display and connectors.
This is quite uncommon, but happens. If the TV had been hit or moved the LCD cable may have slipped out, or the LCD connector may be damaged.

The LCD controller board.
This is the board that controls the video signal, it is difficult to test, as there is need to read determined values on IC pins. To test this board you need to purchase a service manual and follow the troubleshooting diagrams on service manual.

Input/Output Signal boards.
This are the boards where you connect the video and audio cables, if a signal board is defective, then you may get no picture on particular inputs located on faulty board.

Generally, when the screen has no light at all, it is the inverter, rarely the main board.
When the screen is blank, inverter is OK, and it may be any of the other faults listed.


If under warranty contact the manufacturer ringing the number on the user manual.

If you want to repair at your own expenses, just locate any good qualified repairer.

If you want to DIY you find parts here,

All: Appliance parts, electronics parts & more from PartStore.com

Encompass Parts Distribution

LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |

Regards.

Your inverter board is OK otherwise you will not get any light on the screen, there is only one inverter board, Check the flat ribbon cable connected to the LCD panel (locate behind the LCD panel), when this connector comes off you will get white screen.

If an LCD TV has sound but no picture do the following:

Use the source button to ensure that source is not set to the wrong input.

Try unplugging power cord for ten minutes, to ensure it is not a setting problem.

Check all the video cables at the back of TV.

Check Light /Color settings.

If problem persist and does not depend on external receiver or settings, then it is likely an internal fault.

If it has sound but no picture then one of the following parts is faulty, and must be tested and replaced:

The inverter is the high voltage board that provides variable power to the backlight lamp. This is the most common. When inverter is faulty you can get no picture, or a very dim picture that can only be seen by pointing a torch light with a 45 degree angle on the LCD surface from very near distance.
The inverter must be tested by reading voltages with a multimeter.

The LCD ribbon cable/LCD display and connectors.
This is quite uncommon, but happens. If the TV had been hit or moved the LCD cable may have slipped out, or the LCD connector may be damaged.

The LCD controller board.
This is the board that controls the video signal, it is difficult to test, as there is need to read determined values on IC pins. To test this board you need to purchase a service manual and follow the troubleshooting diagrams on service manual.

Input/Output Signal boards.
This are the boards where you connect the video and audio cables, if a signal board is defective, then you may get no picture on particular inputs located on faulty board.

If under warranty contact the manufacturer ringing the number on the user manual.

If you want to repair at your own expenses, just locate any good qualified repairer.

If you want to DIY you find parts here,

All: Appliance parts, electronics parts & more from PartStore.com

Encompass Parts Distribution

LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |

Try reseating the lcd cable on the back of the LCD and also where it plugs into the motherboard. If you still can't get a normal screen and it stays dim then its going to be either your lcd is bad or the inverter that supplies the voltage to the lcd (inverter is located underneath the lcd, small rectangular board) is bad.

If an LCD TV has sound but no picture do the following:

Use the source button to ensure that source is not set to the wrong input.

Try unplugging power cord for ten minutes, to ensure it is not a setting problem.

Check all the video cables at the back of TV.

Check Light /Color settings.

If problem persist and does not depend on external receiver or settings, then it is likely an internal fault.

If it has sound but no picture then one of the following parts is faulty, and must be tested and replaced:

The inverter is the high voltage board that provides variable power to the backlight lamp. This is the most common. When inverter is faulty you can get no picture, or a very dim picture that can only be seen by pointing a torch light with a 45 degree angle on the LCD surface from very near distance.
The inverter must be tested by reading voltages with a multimeter.

The LCD ribbon cable/LCD display and connectors.
This is quite uncommon, but happens. If the TV had been hit or moved the LCD cable may have slipped out, or the LCD connector may be damaged.

The LCD controller board.
This is the board that controls the video signal, it is difficult to test, as there is need to read determined values on IC pins. To test this board you need to purchase a service manual and follow the troubleshooting diagrams on service manual.

Input/Output Signal boards.
This are the boards where you connect the video and audio cables, if a signal board is defective, then you may get no picture on particular inputs located on faulty board.

If under warranty contact the manufacturer ringing the number on the user manual.

If you want to repair at your own expenses, just locate any good qualified repairer.

If you want to DIY you find parts here,

All: Appliance parts, electronics parts & more from PartStore.com

Encompass Parts Distribution

LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |