Member Avatar for sirahari

Hi all!
All of a sudden, my monitor (Samsung-Samtron 56V) features--brightness, contrast, etc.,-- are appearing on the screen by themselves. They keep flickering on and off, lock and unlock ControlLock and do not go away even with repeated pressing of the exit button on the monitor. Keeping the exit button depressed even changes the display width, and contrast.
So I have reinstalled the Operating system (XP). But to no avail. I had a host of viruses before reinstalling the OS. The viruses are gone. Now I have AVG free anti virus running. I have also tried downloading 3-4 antivirus' from the web and run them one after the other. But this monitor problem persists.
Need urgent help.
Thanks,
Sirahari

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  • Latest Post Latest Post by mechbas

Dani AI

Generated

Brief note referencing earlier replies from and : before committing to replacement, run a few quick isolation and inspection steps to confirm whether the fault is in the monitor itself or coming from an external source. The steps below are low-cost and safe, and they show what a repair shop would check first.

  • Disconnect the video cable and power the monitor on by itself. If the on-screen controls still activate, the fault is internal.
  • Try the monitor with a different computer and with a different cable. If the behaviour follows the monitor, it is not the PC or driver software.
  • Inspect and exercise each front-panel button individually. A flaky membrane switch or dirty contacts will cause random menu activity; temporarily covering or taping the buttons can act as a quick diagnostic.
  • Power-cycle the monitor: unplug AC for several minutes, then reconnect. If a stuck microcontroller state or capacitor charge is involved, this can clear it.
  • If the front bezel can be opened safely, look for obvious damage: loose ribbon cables, cracked solder joints at the button connector, or bulging/leaking electrolytic capacitors on the power/control boards. Do not open the chassis unless confident about mains safety; large capacitors can hold lethal charge.

If internal hardware is confirmed, weigh repair cost vs replacement. Simple fixes (cleaning or replacing the membrane/button assembly, reflowing solder, replacing a few capacitors) are inexpensive if done by a competent technician. If the monitor is old or repair quotes approach replacement price, replacing the unit is usually the more economical choice. Include a safety note if pursuing DIY repair: disconnect mains, use correct tools, and if unsure, seek a qualified technician.

Member Avatar for mechbas

Replace/service the hardware.

Member Avatar for sirahari

Thanks for the tip. But whhy is it happening?

Member Avatar for mechbas

a few suggestions: bad assembly on ass. line, damage in shipment/storage, old age, etc.

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