Question about Westinghouse L1975NW Monitor

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Broken LCD Backlight

I have a westinghouse 19" widescreen LCD monitor. It turns on and with a lot of light on it the picture is thee but otherwise looks black. It appears to be a problem with the backlight. It has 4 ccfl lamps and none of them even flicker which makes me thing it is a problem with the inverter and not a dead bulb. But the inverter is integrated so replacing it is not easy. I also noticed that a couple of the capxon 220uf 25v capacitors may be bulged, but if they are it's not by much and I am unsure if that is the problem. I'm at a loss of what to do next and would like to try to repair the monitor for under $50. Any suggestions?

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Dtoreilly, You will need to check all the Electrolytic Capacitors. Here is what I found. I measured some units on a Stanford Research Systems SR720 LCR meter. Units are CAPXON #1 2200uf @ 16v now 119uf
#2 2200uf @ 10v now 48.8uf
#3 2200uf @ 10v now 10.8uf
#4 2200uf @ 10v now 136uf
#5 2200uf @ 10v now 29uf
Yes their tops were only minimly bulging also. So I guess it really dosen't matter very much if they are only swollen a little bit!!!! I'll let you interpret the DATA I have presented here. I know one thing though-- If I were mass-producing anything that needed low voltage filter capacitors on the printed circuit board--- They certainly wouldn't be made by CAPXON!! Bye for now I'm louie12fix on fixya or lmistyrel @aol.com

Posted on Sep 25, 2009

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Posted on Jan 02, 2017

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SOURCE: I have a westinghouse 19 with a broken backlight

if its like my 20v5 then it might be a power supply problem with bulging caps.

the link below shows the part numbers how to replace all the caps for my 20v5 model. look at that and sillybits entry how to take it apart. your monitor should be similar but i would talk apart first to verify the same caps exist in your unit.

http://www.fixya.com/support/t2576306-two_westinghouse_20v5_monitors_also_just

Posted on Nov 08, 2009

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Hi!! I have a Westinghouse L1916HW 19" DVI LCD 2ms


One possibility is that it may have dying power supply which may be putting out unstable DC which can cause a lot of strange symptoms.
See pictures here: http://s807.photobucket.com/albums/yy352/budm/Westinghouse%20L1916HW/?action=view&current=DSC00244.jpg

Bad caps are real common problems in all brands of the monitors as you can see in my albums.
Westinghouse monitors are cheaply made to start with.

Mar 20, 2011 | Computers & Internet

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I have model 1975NW. When power is turned on, green light appears, then orange light. No picture is present.


The ORANGE light indicates "power-saving" mode -- when no "output" from a video-card is being detected, the screen will dim itself. Try a different monitor. Try a different video-card in your computer. Try your monitor on a different computer.

Feb 03, 2011 | Westinghouse 19" Widescreen Flat Panel LCD...

1 Answer

I turn on my westinghouse tv, the W appears as usual but after that it goes black but the blue ON light is still on. I try to push the input, menu, channel button but the screen is still black abd their is...


Either failed power supply, backlight inverter boards.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

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

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.

Please post back what you find.

Oct 23, 2010 | Westinghouse 19" Widescreen Flat Panel LCD...

1 Answer

Monitor on=- black screen


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 WESTINGHOUSE and other 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 17, 2010 | Westinghouse 19" Widescreen Flat Panel LCD...

1 Answer

I can't get picture on my TV. It essentially won't turn on.


Look for caps and see my pictures to see what bad caps look like, you may ahve dead inverter board.
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://www.badcaps.net
http://en.wikipedia.org/wiki/Capacitor_plague

Apr 18, 2010 | Westinghouse 19" Widescreen Flat Panel LCD...

1 Answer

I am powering up and the flat screan turns on and


More likely to be bad caps (bulging top/seal) in the power supply, which when they failed, they may have taken out the inverter fuse on the transistors in the inverter circuits also. See example of failed monitors due to bad caps: http://s807.photobucket.com/home/budm/allalbums

Mar 14, 2010 | Westinghouse 19" Widescreen Flat Panel LCD...

2 Answers

I have a westinghouse 19 with a broken backlight


There is a chip in your monitor that is burnt out. To replace it would cost you about $150.00. To remove it is even harder as it is in the inside mount to your screen. If you are able to remove your front screen and put it on a board you can use your tester to find the chip. It would be cheaper to buy yourself another monitor. As the hours it will take to do this are intense. If you don't have the time to do this all in a day don't do it, as your memory will run into problems trying to accomplish this over a period of time. Try craigslist. Let me know if I can help with anything else. Thanks.
JimmyC

Sep 25, 2009 | Westinghouse LCM-19v1 Monitor

1 Answer

Buttons on the bottom of the westinghouse monitor


momof3boysn1, Did you try removing the plug from the outlet strip and then plug monitor back in and turn it back on? Usually the button that looks like an asterisk with a small circle dead center will be the brightness control. get back to me if this won't help. I'm louie12fix on fixya or lmistyrel@ aol.com

Apr 05, 2009 | Westinghouse 19" Widescreen Flat Panel LCD...

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