Member Avatar for stabbilo

Any help with this please.

Booting into windows monitors comes on for a few seconds them you lose the display - if you them switch on and off a few times it come back on--

when on - the screen is the correct resolution and refresh rate correct.

thank you in inadvance

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  • Latest Post Latest Post by kharlos

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This matches the symptoms described by and the suggestions from others, and gives a short, practical diagnostic path to follow before paying for collection/repair.

Start with two quick checks that tell you which subsystem is failing. Press the monitor Menu/OSD buttons while the picture is “gone.” If the OSD/menu still appears but the image is dark, the video path is fine and the backlight or its inverter/driver is the likely culprit. If the OSD disappears with the image, the problem is upstream (signal/T‑CON/panel). The NEC user manual’s troubleshooting section lists checking on‑screen menus and inputs as the first step. (techclipper.net)

Do these simple tests next (low risk, immediate results): 1) Try a different computer and a different video cable/port to rule out the graphics card or a bad cable. 2) With the room dark and the monitor powered, shine a bright flashlight at the screen at an angle — look very closely for a faint image. A visible faint image with the flashlight strongly points to a failed backlight/inverter rather than the panel or GPU. 3) Note whether the display comes on for a few seconds, then dies repeatedly (cold joints, failing capacitors or an inverter protection circuit often behave like that). (laptoprepair101.com)

If the flashlight test and OSD point to backlight/inverter, the usual causes on older CCFL monitors are failing inverter boards, aging CCFL tubes, dried/bad electrolytic capacitors or cracked solder joints around inverter transformers. Those faults commonly make the lamp fire briefly then shut down. Replacing the inverter or lamps is technically possible but involves voltages and delicate panel work; many people find repair cost/effort exceeds buying a used or new monitor. Don’t probe inverter circuits live unless experienced — capacitors and inverter outputs carry high voltage. (badcaps.net)

Practical next steps: confirm the two simple tests above, then decide. If the unit is under warranty, NEC repair makes sense; otherwise consider a local electronics shop or searching for a tested replacement inverter board (or a donor monitor) only if parts are inexpensive. If you prefer not to risk high‑voltage repairs, replacing the monitor is often the most economical and safest option. (manualslib.com)

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Member Avatar for nizzy1115

You should contact the manufactuer because it sounds like it may be a faulty lcd.

Member Avatar for stabbilo

Thanks nizzy

But £80 or £125 including packing for Nec to collect and check out the monitor and then they will want a price to replace the faulty parts - does discourage you from making contact.

You should contact the manufactuer because it sounds like it may be a faulty lcd.

Member Avatar for nizzy1115

Do you have another computer you can test the displays on to make sure its not the graphics card?

Member Avatar for kharlos

Any help with this please.

Booting into windows monitors comes on for a few seconds them you lose the display - if you them switch on and off a few times it come back on--

when on - the screen is the correct resolution and refresh rate correct.

thank you in inadvance

Sound like you have a blacklight problem, where one of the two sets of light a burned or may have a cold joint.

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