Question about Samsung SyncMaster 203B LCD Monitor

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When I power up my PC, I must toggle the monitor power on & off 15-20 times before the screen remains on. I have ...

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Look for bad caps in the power supply.
http://s807.photobucket.com/albums/yy352/budm/Samsung%20203B/

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 SAMSUNG 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.
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 Sep 05, 2010

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This is a typical symptom of bad capacitors on the power supply board. The capacitors filter the output power and when they start to fail it takes time for them to build up a charge so they can filter the power correctly. Here is a picture of the power supply board model IP-43130A and here is a link to information that shows what needs to be replaced it repair the power supply board and bring your monitor back to full working order.

http://www.ccl-la.com/catalog/product_info.php?products_id=229


When I power up my - 9_7_2012_3_15_05_am.jpg

Posted on Sep 07, 2012

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Problem with external monitor activating with DV6 1360-us


You can switch to an external monitor or data projector by two methods. 1. Connect the external monitor to the laptop's video port, power up the external monitor first and the laptop. The video information will automatically switch to the external monitor. 2. If you power up the laptop first then you can switch the video output to the external monitor by pressing the Fn key and one of the Function keys, depending upon your make and model laptop. You can also toggle between the external monitor or both LCD screen plus the external monitor or back to LCD screen only by pressing the Fn key plus one of the function key a few times. Here is a list of key combinations for some of the laptops :- IBM ThinkPad = Fn + F7 HP and Compaq = Fn + F4 Toshiba = Fn + F5 Dell = Fn + F8

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Have a Gateway Notebook KAV-60 with a broken screen. Trying to connect to an external monitor without any prompts or commands, as I can't see the screen. With an Acer Netbook I just plugged in the


Make sure the vga cable is in tight on the kav-60 and the external monitor.

Try the keystrokes to toggle the display. Normally you would Press and Hold the FN function key located at the lower left on the keyboard then hit the key F1 thru F12 that toggles the display. The correct F1 thru F12 key to hit will have LCD/CRT on it or it will have the icon of a display. The display toggles in three stages ( laptop only, external only or both laptop and external).

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Power is on but no signal output to the screen


The following applies to Acer Laptops. You did not specify the brand of laptop you had. If your laptop is not Acer, the specific keys mentioned may be different and you should adjust accordingly.

If the power indicator is lit but nothing appears on the screen - The computer's power management system automatically blanks the screen to save power. Press any key to turn the display on.
If pressing any key does not turn the display back on, check the following....
1. The brightness level might be too low. Press Fn and the right cursor key to increase brightness level
2. Display device might be set to an external monitor. Press Fn and F5 to toggle to the internal display
3. Backlight might be turned off. Press Fn and F6 to turn on the backlight.
4. If the Sleep indicator is lit, the computer is in Sleep mode. Press & release power button to resume.

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I have a dell Inspiron 8000 that is dead. Was working fine last time used. After pressing the power button The Hd light will flash a few times. There is a few sounds, And you can see a quick bleep in the...


there should be a video output on that laptop. hook it up to an external monitor and use the keyboard combination of keys to toggle on the external monitor and watch to see if you get the same issue

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Computer monitor don't work at all.


So basically your monitor's power supply system died.
Nothing much a non-technician could do about it.
Get it repaired, if under warranty, get a replacement before the coverage duration expires.

Jun 07, 2010 | Computers & Internet

1 Answer

LCD is on...seems like backlight is not functional; when external monitor connected, boot-up and bios screen visible. After boot-up, screen goes to "power save" mode and will not return


Use the 'FN' key (blue coloured?) and one of the other blue-coloured keys to "toggle" the video:

1. LCD only
2. external monitor only
3. both LCD & external

After boot-up, Windows defaults to "LCD only", and so the external monitor goes to "sleep".

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Hear power on, black screen. wont do anything.


- try to connect you machine to an external monitor
- if the display appears on your external monitor the problem would be the LCD screen of your laptop (need to replace it)
- if there is no display on both laptop and external monitor i suspected it's the motherboard faulty
- send your laptop to service center to replace it (if it is underr warranty it's free

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1 Answer

Blank screen


Possible that the HV inverter or the CFL tubes are going bad / defective. I suggest to bring the unit to an authorized Acer service center for proper check-up / test & fix the problem. regards

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Blank screen on start up on Acer Extensa 4620


Did you switch displays to the external video? Try hitting the Fn key and whichever function key at the top of the keyboard has a little TV screen icon over it at the same time.

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Labtop Screen Remains Blank


connect to external monitor to rule out bad video card. (remember most laptops have to toggle between internal and external display by using the <FN>+ <F?> key, mine is FN F5.)

If the external works then the problem is
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  2. TAB welds at LCD or
  3. CCFL Cold Cathode Florescent Lamps (backlights)

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