Member Avatar for roastinghatt

Hello all,
I really need some help here, for about a weeks now, When I start up my pc which is about 31/2 yrs old (monitor is abot 21/2 yrs) I can hear everything load up and windows open even upto the bleep that tells me I may not have any antivirus yet! (I got rid of it because I thought it was causing probs!)but my screen is black, so I have to keep turning the comp off & on again & slowly, slowly each time I do, the screen starts to display (not clearly, a bit blue and faint) only as a flash, but the more I turn off & on the screen slowly displays more each time until it comes on & then its fine all day even if it has to reboot, goes off and on fine. then shuts down ok at night. I dearn't try to turn it off completley now though because it will probably give me the same probs and take another hour to get it started properly again.:'( I have used the system repair console back to factory settings because I thought it might be a prob with the registry!! I'm not to well clued up!:-/ but no change..is it the monitor or the pc?
There is another slight prob with the display in that some of the letters are slightly blurred almost in strips going down the page, this has been there for a few weeks. (I thought I was getting middle age eyesight!:D

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  • Latest Post Latest Post by KVM_AV_Guru

Dani AI

Generated

Brief expert note referencing and the replies from , and : the pattern described (Windows sounds but black screen, faint/blue flash that improves with repeated power cycles, and vertical blurring of text) most often indicates a monitor-side hardware fault. The replies already point in that direction; the steps below show how to confirm that quickly and safely.

Quick checks to isolate monitor vs PC:

  • Power/order and OSD: turn the monitor on first, wait 20-30 seconds, then power the PC. If the monitor OSD/menu does not appear when pressing its front buttons, the monitor electronics are likely failing; if the OSD appears but no PC image, suspect cable/GPU.
  • Cable and connector: reseat or swap the video cable (VGA/DVI/HDMI). Inspect for bent pins or corrosion. Try a different video input on the monitor if available.
  • POST vs Windows: watch for the BIOS/POST screen immediately after power-on (before Windows sounds). If POST text/logo is visible but Windows desktop is not, that points to drivers/resolution. If POST is not visible at all, monitor or video signal is suspect.
  • Alternate display: test the PC with a known-good monitor or TV, or plug a laptop/DVD player into the suspect monitor. Borrowing or taking the monitor to a friend is an effective quick test.

Context and safety: common monitor failures include failing electrolytic capacitors, inverter/backlight issues (LCD/CCFL), or CRT convergence/deflection faults. These are hardware repairs and CRTs contain lethal voltages—do not open a CRT unless qualified. For background on common component failures see Capacitor plague and general monitor info at Computer monitor.

If the quick tests point to the monitor, replacement is usually faster and cheaper than repair; if they point to the PC, try reseating the video card and booting into Safe Mode to rule out drivers.

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All 4 Replies

Member Avatar for roastinghatt

Oh! I don't have use of another pc to check my monitor against.

Member Avatar for Suspishio

Sounds like the screen to me because it's what you're doing to the screen that brings it back. Probably a capacitor leaking in the HT circuit.

If you take the monitor to a friend's house and try it you'll get a clearer indication.

Member Avatar for nsik

your monitor has a problems at the convergence socket and blurred is coz by a wrong focus on the screen try another monitor and find the answer

Member Avatar for KVM_AV_Guru

agreed. you're definitely going to need to buy a new monitor. Your computer is probably fine, though. Which is good news. New monitors are cheap and fast to install. New computers, not cheap.

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