Question about NEC MultiSync LCD1550M (White) 15" LCD Monitor

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No power My LCD monitor will not power up. I already checked the fuse inside and it looks fine. I do believe that there is power running through because when i flip the power switch on the side I can hear it hum, but when I press the power button on the front nothing happens. There is no evidence of physical damage noting looks burnt and the outer casing is intact. If anybody has any info please let me know. Thank You

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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

Posted on Jul 01, 2009

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Dell E171FP - goes blank after a second or two LCD monitor powers up for a second or two and then goes blank but the power light remains on. Display is fine for the few seconds it remains on. ...


You need to look for bad solder joints, bad caps, shorted transistors, etc,
See example here: http://s807.photobucket.com/albums/yy352/budm/DELL/

If you are going to DIY and already try the monitor with another PC, 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/albums/yy352/budm/
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 and 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
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
Please leave rating if it helps.


Replacement board: http://www.lcdrepair.us

Apr 24, 2011 | Dell E171FP 17" Flat Panel LCD Monitor

1 Answer

19" balance moniter wont come


I believe it is time to inspect the caps in the power supply.
If you are going to DIY and already try the monitor with another PC, 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/albums/yy352/budm/
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 and 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
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
Please leave rating if it helps.

Feb 15, 2011 | Balance CM2019 19" LCD Monitor

1 Answer

My AOC 2019Sw1 - 20" LCD monitor is not working.


If you are going to DIY and already try the monitor with another PC, 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 AOC monitors to get some ideas what to look for: http://s807.photobucket.com/albums/yy352/budm/
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 and 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
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.
Please leave rating if it helps.

Jan 31, 2011 | AOC 2019SW1 20" Monitor

1 Answer

My lcd monitor is samsung 740n. 17inches. When i start my computer,the CPU is on,Fan is running, Hardisk is working and CPU lights are blinking, the initial intel logo and windows loading logo is ...


First thing I would try this monitor with another PC first since the problem can be in some where else in the PC also. Do you get video if you boot up in safe mode? Did you load any new sofetware, drivers?
If it is monitor problem, then you should read below so you will know what to look inside.
If you are going to DIY and already try the monitor with another PC, 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/albums/yy352/budm/
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 and 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
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

Jan 02, 2011 | Samsung SyncMaster 740N 17" LCD Monitor

1 Answer

My monitor is not receiveing any power. it was working fine untill i turned it off last night.now it appears the monitor isn't getting any power. i've tried 3 different powerchords and multiple outlets. my...


You can try DIY repair, but you should read my guide and look at my albums first.
If you are going to DIY and already try the monitor with another PC, 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/albums/yy352/budm/
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 and 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

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

Dec 10, 2010 | LG Computers & Internet

1 Answer

Originally, intermittent power loss and then complete power loss. Have already done continuity check on power cable and have switched monitor cable.


More likely the power supply porblem due to dying DC filter caps.
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.
http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Aug 28, 2010 | IBM 9494hbo 18.1" Flat Panel LCD Monitor

1 Answer

I have a samsung 19" LCD 931BW. Problem is- When i turn on the pc, nothing displays on the monitor though the CPU already is booted. After several CPU resets, there is already display. I think the monitor...


<P>You may have dying power supply due to bad DC filter caps, that would be my first thing to look at.</P><P><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">If you are going to DIY and have proper tools and know safety precaution then please read on:<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></P><P><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">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: <A href="http://s807.photobucket.com/home/budm/allalbums"><FONT color=#800080>http://s807.photobucket.com/home/budm/allalbums</FONT></A><o:p></o:p></SPAN></P><P><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Post back what you see inside so we can guide you further and it will help out other people in the future also.<o:p></o:p></SPAN></P><P><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><A href="http://en.wikipedia.org/wiki/Capacitor_plague">http://en.wikipedia.org/wiki/Capacitor_plague</A><o:p></o:p></SPAN></P><P><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">Capacitors kit: <A href="http://lcdalternatives.auctivacommerce.com/">http://lcdalternatives.auctivacommerce.com/</A> he can make you a set of caps for you.</SPAN></P>

Aug 27, 2010 | Samsung SyncMaster 931B 19" LCD Monitor

1 Answer

Help! My acer ferrari 20 inch monitor has worked perfectly for the year and a half I have owned it. Yesterday the screen just went blank.. no warning. I have checked all the cables and even plugged an old...


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

Jul 01, 2010 | Acer Ferrari F-20 20" LCD Monitor

1 Answer

Hitachi Monitor turns on for a sec then turns off.


Since you have already indentify that the problem is with the monitor, next thing to do is to open it up, but if you are going to DIY repair, then you should read below and look at the pictures so you will know what to look for inside.
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, 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

May 07, 2010 | Hitachi CML174SXWB (Carbon) 17" LCD...

1 Answer

How do you restart a nec lcd monitor, had power surge everything but monitor gets power?


The power surge probably blew the fuse inside the tv, first check the fuse inside the mains plug, if that is good then you will have to take the back cover off the tv, you are looking for the power board follow the mains cable into the tv and you will find it. Look for a fuse on the board, pop it out of the fuse holder, if you have or can get hold of a multimetre check the fuse for continuity if it hasnt you will have get hold off another fuse, you can normally get them from your local electrical repair shop, they dont cost much and the liklyhood is they will probably give you one free of charge.

Feb 04, 2010 | NEC MultiSync 1760NX 17" LCD Monitor

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