Member Avatar for vantran012

hi.
can somebody helping me, i have a hp pavilion dv6500 lcd screen went blank.but it works with external monitor i therefore suspect the lcd screen is faulty.i have replaced the lcd screen,display inverter and screen cable, still have not resolved the issue.i now intend to replace the system board as well.i just want to know are there any complications after replacing the motherboard ? eg, BIOS, CHIPSET and WINDOW operating system.
i am not very good at computering at,but i am very good at following instruction.

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Short expert summary and targeted next steps for .

If the external VGA output is known-good, the fault is now limited to the laptop’s internal-display subsystem or the mainboard circuits that enable it. Useful checks that are often missed: verify the low-voltage backlight-enable and power supply at the panel/inverter connector (do not attempt to probe high-voltage inverter outputs without the right tools), inspect the LVDS connector pins on the board for bent/broken contacts, confirm the lid-switch/EC is not disabling the display, and test for a faint image with a bright light to separate backlight failure from image-data loss. These narrow tests identify whether the replacement system board is actually required.

About replacing the system board: expect BIOS/firmware and driver considerations, not an automatic loss of data. A replacement board will typically reset BIOS/EC settings and may have a different BIOS/firmware revision; Windows may request re-activation if the hardware signature changes (OEM licenses are more likely to trigger this than retail licenses). Chipset and network drivers that match the new board will likely need installation, but a correctly matched HP FRU or identical part-number board usually boots Windows without full reinstallation. Full disk data is unaffected by swapping the board, but a backup image is strongly recommended.

Practical checklist

  • Backup the drive (disk image) before any swap.
  • Source a board that matches the original FRU/part number and BIOS family.
  • Download chipset, video and network drivers in advance.
  • Test the replacement board on the bench (minimal assembly) before reassembling.
  • If unsure about backlight power or BGA/GPU faults, consider a reputable repair shop for diagnostics (reflow/reball options).
  • Weigh part cost vs. machine value; sometimes a used/repaired board or replacement laptop is more economical.

’s point about exhausting diagnostics is applicable; ’s lid-switch idea is worth checking early; ’s flicker description matches intermittent backlight/inverter or board-level power issues.

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Member Avatar for Quick_Silver69

Hi,
Well a lot of things can be tried before you go ahead & replace the motherboard..

Member Avatar for Suspishio

Lid switch problem?

Member Avatar for starrkate83

I'm having the exact same issue with mine :( its soooo frustrating! The screen worked for a little while but flickered from bright to dim and then went black. When I start the computer the screen was lit up until I got to the login screen and it blacked out again. When I look closely at the screen I can see everything but its extremely hard to see. Also I had my computer for little over a year and the DVD drive stopped working. The green light on it blinks occassionally but it wont do anything with cd's/dvd's you put in it. Please help!

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