Question about HP Pavilion F1903 19" Flat Panel LCD Monitor

2 Answers

Im having the same problem. Did you happen to get the Info for the capacitors when you purchased them. please let me know Thank you Mestrefluente

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2 Answers

You need to match the capacitors to the parts removed from the PCB.

Posted on Apr 28, 2008

You need to match the capacitors to the parts removed from the PCB.

Posted on Apr 28, 2008

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My lcd tv samsung sycnmaster 940mw, after replacing all capacitors, it works for 2 months but then now im having new problem, when i switch it on, it works for awhile, then picture is disappearing (black...


Audio comes directly to multimedia LCDs and has nothing to do with display.
Usually, the capacitors are the casue of such blackouts. So, it is recommended that you check the capacitors/ other components such as invertor board and CCFL (lamp), which may be failing or heating up.

Hope it helps! Good Luck!
CreativeTECH

Apr 09, 2011 | Samsung SyncMaster 940MW 19" LCD Monitor

1 Answer

No power no screen nothing i opened it up to see any capacitor are blown but they seem ok what do you thank


Capacitors have completely flat tops? Bad cap can look normal but can have high ESR.
You alos need to check the DC voltages on the filter caps.
Please read my guide.

Basic LCD monitor and LCD TV troubleshooting guide:

http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting

http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

Failed TV, Monitors, Caps : http://s807.photobucket.com/home/budm/allalbums

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Capacitor kits: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Please post back what you find

Nov 14, 2010 | LG Flatron L1718S LCD Monitor

1 Answer

I have Hanns-G and now I don't have a picture at all. Nothing happened and I don't know what happened to the picture.


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.

Oct 03, 2010 | Hanns.G Corporation HW191D 19" LCD Monitor

1 Answer

Picture goes off after 1 second on power - diagnosed as an inverter fault.Please advise where we can purchase.Thank you.


service341, Open unit first!! Look for typical bad capacitors on SMPS power supply board!!! Document unit "tear-down" using video camera or digital still pic's so you can perform "reassembly" of unit after repair is successful. Have you been to YOUTUBE so you will know what to do BEFORE you do the repair? Watch some videos first. Have you heard the old saying, "a picture (or in your case) a video clip is worth a thousand words!!! You can do additional comment here after you do your research at YOUTUBE as to the worth of this response. Possible you only need $5 in new capacitors and not a $45 SMPS/inverter board. Get back to us and report on the brand name of the filter capacitors you find populating the SMPS printed circuit board. I hope you don't find any "CapXon" brand filter caps on your board!!! 12fixlouie

Sep 09, 2010 | Samsung SyncMaster 2233SW Monitor

1 Answer

My syncmaster 2233sw monitor has been going black while im doing something and will show it switching between analog and digital what should i do?


You may want to inspect the DC filter caps in the power supply first.<br /> <span style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">If you are going to DIY and have proper tools and know safety precaution then please read on:</span><br /> <span style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, 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: <a href="http://s807.photobucket.com/home/budm/allalbums">http://s807.photobucket.com/home/budm/allalbums</a></span><br /> <span style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">Post back what you see inside so we can guide you further and it will help out other people in the future also.</span><br /> <span style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'"><a href="http://en.wikipedia.org/wiki/Capacitor_plague">http://en.wikipedia.org/wiki/Capacitor_plague</a><span style="mso-tab-count: 1"> </span></span><br /> <span style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">Capacitors kit: <span style="mso-spacerun: yes"> </span><a href="http://lcdalternatives.auctivacommerce.com/">http://lcdalternatives.auctivacommerce.com/</a><span style="mso-spacerun: yes"> </span>he can make you a set of caps for you.</span><br />

Aug 24, 2010 | Samsung SyncMaster 940T 19" Digital/Analog...

1 Answer

Went black. Power light still comes on. Bulb? Power supply? How to diagnose? Thank you!


Caps inspection first, voltage checking next.
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, 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.
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net
Capacitors kit: http://lcdalternatives.auctivacommerce.com/

Jul 28, 2010 | Hyundai L90D+ 19" LCD Monitor

2 Answers

I need the power cord for the moniter DC12V 4A where can i purchase one


Please check the links below:

http://www.alibaba.com/product-free/12261397/AC_110v_240v_DC_12v_4a.html

http://yuptek.en.busytrade.com/selling_leads/info/1124592/Sell_Lcd_Monitor_Adapter_Or_Tv_cord_For_Dc12v_3a.html

Thank you!

Feb 09, 2010 | Star Logic 17" LCD Monitor

2 Answers

Blinking monitor


Hello, It sounds like you have a capacitor problem. It was about two years ago that some bad capacitors from china was purchased by several of the big monitor manufactures. These capacitors almost like clockwork start swelling after the monitor is about a year to a year in half old. The biggest manufacturer that this happened to was Gateway and you can do a Google search on just about any (FPD2185W Gateway Capacitor Problem) and the internet is full of unhappy people. They were not the only ones that purchased these bad capacitors. There are alot of how to guides on replacing them yourself if you have a little mechanical knowledge and a soldering iron. You can also find several guys on e-bay selling the power inverters with new caps or offering to fix yours. Just go to e-bay and type in Power Inverter for monitors and you will see. If this is your problem the monitor will get worse. They start not powering up after you restart the computer. But the power button will still be lit up. Then after a while it will finnaly come on. I hope this info helps at least point you in the right direction for research.

Have a great weekend

Jun 06, 2009 | LG L1915S 19" LCD Monitor

1 Answer

No power


The NEC LCD1550M series flat panels that won't or intermittently start up often have a weak capacitor in the power supply. C807, 100uf @ 25vdc electrolytic. Replacing it often restores normal function.
Monitor Mike

Sep 12, 2007 | NEC MultiSync LCD1550M (White) 15" LCD...

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