Question about Philips 190B7CB LCD Monitor

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My LCD monitor blinks after switch on the power. display appear and go blank again appears and go blank and again and again.......................

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1. Make sure the computer is switched on.
2. Check to see if the monitor cable has bent pins.
3. Make sure the signal cable is properly connected to your computer.
4. The energy saving feature may be activated.
Thanks for choosing FixYa

Posted on Oct 11, 2010

  • snehsudhakar Oct 11, 2010

    checked all but not helpful.
    when i disconnect high voltage connectors from supply unit then power led goes stable but no display

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Losing TV picture, screen goes blank,


If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
- Flickering screen
- Screen image disappears after several seconds
- Dim screen
- Slow start
- Power LED on, but no picture
- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years.
Check the cables, connectors and connections.
Take it to a repair shop.

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If you have not updated the graph drivers, and it has been working, then you should contact View-sonic, go to their website, check warranty, but if you didn't change anything, it should be the monitor having problems. Did you check the plugs on the PC and monitor, the power plug on the monitor, make sure they are connected right and didn't come lose.

Mar 31, 2013 | Computers & Internet

1 Answer

I have a problem about my laptop if i turn it on my screen are still blank but my laptop is still working.. can i ask if what is the problem about my laptop. pls help me... tnx!


Although your Toshiba portable computer appears to be on and running, there is no image on the built-in LCD display screen Look closely at the LCD display screen. If you can see a faint image on the screen, the display screen's fluorescent backlight may be turned off. Shining a flashlight directly at the screen will make it much easier to see whether or not there is a screen image actually present, though not lit up. On most Toshiba portable computers, there is a small plastic or metal pin near one of the LCD display lid hinges. When the display lid is shut (closed), this pin is pressed against an internal switch which turns off the backlight, saving battery power. You may be able to turn the backlight on again by tapping this pin repeatedly. The normal screen image will then suddenly appear, or re-appear.If there appears to be no display image at all, the problem is probably not related to the backlight. In this case, press and hold the Fn key and then press the F5 key several times, pausing several seconds between each keypress. This will cycle through several display output modes: Internal, External, Simultaneous, and possibly one or two more.If no image appears on the LCD display after cycling through the Fn-F5 sequence, try doing so with an external CRT monitor attached, if possible. If you still see no image, on either screen, try restarting the computer with the CRT monitor connected.If you see a screen image that looks normal when the computer is first powered on, or when you try to enter the BIOS Setup during the power-on sequence, it's an indication of a software problem (a driver or an application that's launched while the computer is loading Windows, possibly). Try downloading the display drivers for the computer from the Toshiba Support website, and then re-installing them.If the LCD screen or an external CRT monitor is blank only while the computer is first powered-on, but then works fine, it's probably not an indication of a problem. Some models display no text or images during the startup process. Additionally, installing some Windows Updates may delay the appearance of the familiar Windows desktop.If there are blank margins bordering the image on the LCD screen, launch the Windows Control Panel, then double-click the Display icon. Click the Settings tab, and then adjust the Screen Resolution setting until image fills the entire LCD screen, which will cause the margins to disappear.If the font size on an external CRT monitor seems too small for comfortable viewing, try clicking the Advanced button on the Settings page, and then adjust the DPI (dots per inch) value. Try 120DPI and 135DIP, to begin with. Avoid changing the DPI to much greater values, in order to avoid settings that will be difficult to change.
  1. Hold down the power button for approximately 10 seconds until the computer turns off.

  2. Verify that neither one of these keys are stuck in the down position:

    the Tab key (arrows pointing left and right)

    the tilde key ( ~ and ` characters)

  3. Turn the computer on.

  4. If either of the keys above appears to be stuck in the down position, and if the issue is not corrected by pressing these keys repeatedly, then service is required.

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1 Answer

If i select source to pc display will become blank and power indicator blinking.


• You can check if the product is working properly using the Self-Diagnosis function.
• If a blank screen is displayed and the Power LED blinks even if the product and the PC are properly connected, perform
the self-diagnosis function according to the procedures below.
1. Turn the product and the PC off.
2. Separate the signal cable from the product .
3. Turn the product on.
4. If the product is working properly, the message appears.
In this case, if a blank screen is displayed again, make sure that there is no problem with the PC and the connection. The
product is working properly.

Is a blank screen displayed and does the power LED blink at
a 1 second interval?

1. This occurs when the power saving function is running.
If you click the mouse or press any key, the screen will be
turned on.
2. This occurs when two monitors are connected,
is and Magictune is running. In this
case, characters on the Magictune OSD may appear
corrupted. To run the Magictune, the must
be set to . Please restart your PC, set the
to and run the Magictune.

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2 Answers

Press power on... screen flashes on (blink), then goes blank and power button flashes


dpelrod727, Yes, the "switch-mode-power-supply" is in "partial" or "full" SHUTDOWN mode. Reconnect E172FP to a fully booted KNOWN good PC with the win-desktop as the displayed screen. Check with flashlight to see if your LCD panel is both BLACK and BLANK, or just BLACK by holding a bright flashlight 1" from screen at different angles even though the screen appears to be blank. If very faint image of desktop is seen then your SMPS is still half alive. Here are your options in either case. 1. Trade in for new. 2. Try Dell for a cash+old swapout for a Refurbed unit. 3. Check out www.ccl-la.com/badcaps, www.badcaps.net, www.lcdparts.net, and YOUTUBE long video clips dealing with LCD monitor disassembly and LCD repair. could be helpful in making decision on what to do. I'm 12fixlouie If this was helpful rate on fixya.

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1 Answer

Philips monitor


Sounds like you have a bad inverter. You will need to open up the monitor to get to the screen to access the inverter board and replace it. If you are handy you can do the job yourself but if not then you will need to take it in to a computer repair shop to have it serviced. Depending on how old this monitor is, the cost of the repair maybe prohibitive.

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LOOKS LIKE A BURN SOLDER !! , open the monitor , check the PC BOARD around the transformer area , look for burn spot or cold solder , RE solder it , try again , hope this helps please rate solution and thanks AJ

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1 Answer

Monitor keeps blank even the power lLED is on green


Try replacin a new display card. If it is fine working.ok
If not try fixing for cold solder in the video section.
I suggest video section according your report the light green LED lighted that shows the power section is doing fine.

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There may be problem of heating the inside components. see him to expert.

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Even when I immediately switch power source (AC adapter or External Battery Pack) right after the low-battery icon started to blink, the camera operation is still locked.


In cases where the blinking low-battery icon appears indicating insufficient power, wait approximately 8 seconds until the LCD monitor display and the EVF become blank. Then switch to another power source or replace with fresh batteries.

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