Question about Hannspree 28" Widescreen Flat-Panel LCD HD Monitor

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My bulb i think went out. I get a picture, but you'll have to view it through a flashlight up against the screen. Where do I get a replacement bulb, and for how much??

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It may be due to bad backlight inverter circuits, bad power supply (24vdc). Replaceing lamps in the panel is not an easy job, some will require you to completely disassemble the panel to get to the lamps. (www.lcdparts.net).
If you are going to DIY and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.

Basic LCD monitor troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting

http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Posted on Oct 07, 2010

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2 Answers

No picture


If you look very close at your screen (might need flashlight here), do you see the picture as a black screen? If so, your backlight may have died on the panel. Replacing the inverter board will fix that right up unless the tube (lightbulb) has burnt out instead of the board. Both are replaceable.. Check it out.

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1 Answer

No picture black screen


One of your bulbs may of died out, If it's an LCD take a powerful flashlight and put it up against the screen and see if you can see any visible print or images. If so the problem is one or more of your back light bulbs have burnt out and the inverter has shut down to prevent any shorts or other hazards of high voltage. If this is not the case and you see no print with a powerful flashlight then it may be dead. Make sure you have the screen set on a lighter section such as the windows log in screen, this will allow for optimal light to pass through the LCD making seeing any image much easier. Bulbs are hard to replace and LCDs are pretty reasonable in price. Id sell it as is on ebay and buy another one, it's just easier. There is a quick hack for this but it requires a little soldering. You can pick up a cheep neon bulb wall plug tester and use that soldered in to reactivate the inverter. That however is a take at your own risk quick fix/hack.

Apr 10, 2010 | Computers & Internet

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Comes on ,but no pic or sound.light blue screen. i think the blub is gone


You can tell if the bulb is out by powering up the TV and holding a flashlight to the tv. Put the flashlight close to the screen and see if you can see any picture. If you can see picture, then it's the backlight. If you can't see pictures it is probably a more serious issue and would likely need to be repaired by the manufacturer.

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Norcent plasma had smell of electrical burning and


get real bright flashlight shin close to the screen in dark roomand try to push the menu button if its the bulb you'll see some picture with flash light shining that shows your backlight is out

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I have an Olympus FE-330 The problem I am having is when I take pictures at night, focusing on anything is impossible. The view shows black, until the picture is taken. After the picture has been taken it...


Take a flashlight with you and shine it on what you want to focus. Press the shutter half-way, shut off the flashlight and press the rest of the way.

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1 Answer

No picture but sound, a few color vertical lines


there is a few things this could be - the 'vertical' of the television went out, the CCFL bulbs are on their way out/burnt out, or the inverter powering the bulbs went out. If you can hold a flashlight to the screen and see picture, it is either the inverter or the lamps - if not, then it's the vertical, and it's easier to just replace

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LCD TV PICTURE HAS GONE OFF BUT NOT SOUND?


If you've tried the backlight and brightness from the menu, you may have a more serious problem.
Try this;
Take a bright flashlight and place it against the LCD screen. See if you can see an image around the edge of the flashlight. If you see an image, you probably have one of three problems;
1) The inverter board is bad.
2) CCFT (cold cathode fluorescent light(s)) are dead
3) Power supply to inverter board is bad.

Mar 08, 2009 | Televison & Video

1 Answer

Sound yes, but no picture on tv


If you have sound on the stations this is a problem in the display. Take bright flashlight and hold it against the screen. Look for an image around the edge of the flashlight. If you see an image then it's one of three problems;
1) The inverter board is bad.
2) The CCFT (cold cathode fluoresent light) are bad.
3) The power supply to the inverter board is bad.
Someone knowledgeable in electronics can replace the bad part(s).

Dec 21, 2008 | Samsung LN-S2641D 26 in. LCD HDTV

1 Answer

Screen is on but picture dose not show... cables connected


Solution, replace monitor with a new one.
I have found, at my shop, that getting parts for these things can be pricey and by the time I charge labor as well, could just buy a new one.
Probably a bad internal power supply or the inverter that powers the bulb(s) went out, which is sometimes built in with the power supply itself. If, and I stress IF, the parts are available, be prepared to pay more than its worth.
Pick up a new one, shop around on different brands. Some manufacturers offer 3 year warranties. ;)

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