Question about ASUS VH232H 23" Monitor

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Blacks out ,no power light ,blackout ,random, then sometimes can be manually turned back on. also at start up sometimes the monitor remains off (no power light)I've swapped power cords ,replaced VGA and DVI cords

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5 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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sparky1500
  • 1066 Answers

SOURCE: Power Saving Mode Problem

try swapping power supplies or improving internal cooling. your not overclocking the cpu or the video cards, are you?

Posted on Jul 01, 2009

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  • 1015 Answers

SOURCE: Monitor Blacks Out Randomly

Well If the monitor is brand new and you just purchased I would take it back and get another one as it appears to be defective. Most stores will allow you to exchange a defective item without a problem as long as you have the receipt. Any attemot to make repairs yourself could void the warranty. If it is used it may still be under warranty...I would get the model/serial number and contact Asus to have repairs made. Most monitors have at least a one year warranty.

Posted on Sep 08, 2009

bob_computer
  • 3153 Answers

SOURCE: NO DVI or VGA SIGNAL to MONITOR

Disconnect all devices from the power supply EXCEPT the motherboard
Remove any extra cards including video etc.(plug monitor into the onboard)

If you hear any beeps these can indictate where the fault is.
either of these sites below will help you further with that

Beep codes P
c

More beep codes

Power up the pc and see if the fans are working.
If not then double check the power connections to the board.

If you still have no fans it is time to suspect the power supply as the probable cause.

If the fans worked then you should have gotten a display which told you there was an error and offering you a chance to go into the BIOS. ignore it and shut down the PC.

Now connect one drive only and boot again.

Repeat that until you identify the component that is giving you a problem.

Once you find the problem then remove or disconnect and carry on with the rest to see if another component might also cause a problem

If there is only one problem device then you may want to investigate that device further, Unless you don't mind replacing it

Posted on Oct 02, 2009

SOURCE: Monitor does not connect with computer . dvi no signal

Could be a bad monitor and if not, then the graphics card if it has one, if not the motherboard connection. Try it with another monitor to rule out the monitor, then if you ave a graphics card, remove it and reseat it.

Posted on Jul 24, 2012

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I have lenovo g550...my screen flickers in every 5minutes...


Failing Inverter An inverter, typically found inside a laptop computer, consists of a small board, which has impregnated electronic circuits stamped on it. Inverters look like thin boards about the of two sticks of chewing gum. The inverter and its bulb control the intensity of the liquid crystal display, which lights the screen monitor. The computer can control the output voltage of the inverter and either lighten or darken the screen. A special type of inverter can adjust the brightness of the screen by using an internal sensor to judge the room brightness, and then adjust the screen accordingly. Failing inverters give off some specific warning signs, which can be recognized by observing different screen characteristics.

Short Intermittent Display Upon turning on the laptop, the screen flashes on in the normal mode for a short period and then blinks to black. A very faint image appears in a dark background, which will be very hard to see almost invisible. After shutting off the laptop and restarting, the same mode occurs, where the screen appears normal for a few seconds then fades to black. This condition points to a failed inverter. To confirm this, plug in an operational external monitor; if the external monitor functions, the inverter has failed. b> Total Blackout with Ghost image b> The laptop turns on, as indicated by the power supply button, but the screen comes up black. The screen comes up black after restart. You might be able to detect a very dim or ghost-like image on the monitor. When you plug in a known functioning external monitor, the external monitor operates normally. This mode of display indicates a failed inverter. b> Long Term Periodic Operation b> With this failure mode, the laptop screen illuminates normally upon start-up and remains that way after several minutes, hours or even days, until it goes very dark again. Brightness controls or restoration attempts do not work. Most often, the screen will function normally with a computer restart, but will eventually return to black. Faint ghost images might appear, as seen in the total blackout mode. b> Dark With Color Variation b> Upon computer start-up, the monitor shows black or dark gray, accompanied by very faint images. The screen might have an intermittent color change, or remain on with a non-standard color variation, like pink or red. b> Auto Control Switch b> If the screen appears black, with no faint or ghost images, look for the lid switch near the back hinge. The switch, when depressed with a closed lid, shuts off the computer and monitor functions. Sometimes the switch becomes stuck in the closed position, disallowing the computer and monitor to turn on when opened. Pushing the switch manually several times can often free it up. If the switch tab has broken or jammed inside the case, it needs replacing. b> Loose Connection In this mode, the display looks normal upon start-up, but tapping the side case of the computer turns the screen black. More tapping results in the screen functioning normally then cutting out again. This condition points to a loose wire connection from the inverter to the LCD backlight lamp, or the video cable. The connectors can be accessed by removing the monitor bezel screws and pulling the plastic retainer off. Both connectors can be cleaned and refitted.

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1 Answer

Should I replace Monitor?


Your monitor is telling you that it is time for you to replace it. Your monitor is going bad on you and will only get worse.

Mar 26, 2012 | Computers & Internet

1 Answer

My LG monitor blacks out intermittently when warm, I have tried it on another computer so it is a fault with the monitor. It blacks out every few seconds, sometimes it takes longer. It is 2 years old.


after blackout, check the screen as that. look in to the monitor in side angel,
and if you can see darken live image in that and its working. in that condition, your
LCD panel is working and the problem is no light.
in that case you need to repleace or repair the " inverter unit " in that monitor.
that unit makes the high voltage for back light.

after blackout , you cant see any darken image like as that, and or totally power
goes off , that is different problem. for solve that need advance trouble shooting
and can be need advance repair.

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2 Answers

Got an alpine cda 9855 the screen keeps goin black but if you touch the button it comes back on it has like a 5 sec delay then it goes black but still plays any help


Blackout Display Mode: When the Blackout mode is activated, the display turns off to reduce power consumption. The additional power made available by turning off the display helps enhance sound quality. If a button is pressed during the Blackout mode, the display will illuminate for 5 seconds before blacking out again. Blackout Mode On and Off (CDA-9855 only) When Blackout mode is turned on, the display will turn off to reduce power consumption. This additional power enhances the sound quality. Press and hold FUNC. for at least 2 seconds to activate the blackout mode. The display will turn off. If any button on the unit is pressed during the blackout mode, the function will be displayed for 5 seconds to show the operation before returning to Blackout mode. To cancel Blackout mode, press and hold FUNC. for at least 2 seconds.
Copied from the alpine user manual..
Hope this helps

Aug 01, 2009 | Alpine Car Audio & Video

2 Answers

Starlogic 20 inch widescreen monitor screen keeps going black


This is probably a back light problem. Take a bright flashlight and while the monitor is on, point it at the LCD and try different angles, etc. If you can see an image, it is the back light, probably the back light voltage converter unit in the lcd. It could also be the back light bulbs.

If you don't see an image with the flash light, then it could be the main logic board.

ort11

Mar 08, 2009 | Computers & Internet

2 Answers

Screen is complete blackout when I turn on my hp compaq c6000


You either have a screen that has gone and needs to be replaced or a cheaper fix and usually a more likely one is that the inverter in the screen has gone out. The inverter is quite cheap, around $34.00. Try it

Dec 04, 2008 | HP Compaq nc6000 Notebook

1 Answer

Laptop monitor goes black


If you're working on the computer when that happens, it's not probably a power setting. Try to update your BIOS to the most current version at the toshiba support website (support.toshiba.com) & see what happens. Fixes the issue most of the time

I hope this helps.

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4 Answers

Monitor screen blackout


check for any DRY SOLDER , specifically around the INVERTER TRANSFORMERS on the PC board . hope it helps

Mar 28, 2008 | Computers & Internet

2 Answers

LCD Monitor blacks in and out for 1-2 seconds


does your monitor have an external transformer as the psu ?
If so, try disconnecting at mains for about 5 seconds and re-connect. failing that we'll need to dig deeper.

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