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My laptop turns on, but I see no video?

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My laptop turns on, but I see no video?

This issue can be pinpointed to two separate items very quickly.

If your laptop will display a video on an external monitor, then you have a hardware issue with either your inverter or your backlight.

You can change the CCFL, which is referred to as the backlight, by disassembling your LCD screen and clipping the AC contact wires that are white and pink. New CCFL bulbs have to be soldered in after clipping. I get asked if inline butt splices will be crimped in and applied instead of soldering. With each system having different clearances, I see that as highly unlikely.

To change an inverter bar, you simply match model numbers and unplug a molex connector.

If it will not display externally, then your issue is geared more towards a BGA onboard issue. HP DV2000, DV6000, DV9000, TX1000, Dell D620, D630, D630, D820, D830 systems with Nvidia chipsets have the known BGA issues that I can fix.

Most systems need a double or triple chipset reflow.

If you are experiencing this issue and need an answer to why it happens or more detailed information on the issue:

Do you add copper shims or pennies?

What if my need is not listed?

As an electronics technician, laptops and desktops are not the only items I work on. If you have a specific need that is not listed above, please feel free to email me at

My desktop turns on, and I see no video?

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This section will try to answer the most often asked questions I get.

Follow the links below for an indepth answer to each question.

My desktop turns on. I see no video?

I run into this more and more these days. Generally, you have two issues. First being your video cable. You can check that simply by seeing if it is connected, and if so connecting it to another system.

If your monitor works fine, then your next issue is the video chipset. More and more I find the newer HP, Dell, and Acer desktop systems use the same Nvidia chipsets as the laptop systems for the HP DV and TX series.

I also find that the add-on video cards, both ATI and Nvidia, have poor circulation fans if any at all, and the chipsets on those need to be reflowed also.

I also find the system may have a capacitor issue. It would display the same signs as a reflow.

To check, just take your cover off, and look at the capacitors. If they are bulging, leaking, or domed, you have a capacitor issue.

Systems that have this issue on a regular basis are Dell SX, GX, OptiPlex, and Dimension systems. I am seeing newer OptiPlex 740, which are AMD based systems, and OptiPlex 745, which are Intel based systems, with capacitor issues.

What if my need is not listed?

As an electronics technician, laptops and desktops are not the only items I work on. If you have a specific need that is not listed above, please feel free to email me at

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