Question about Dell W1900 19 in. HD-Ready LCD Television

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TV Cuts off on its own

I have a 19? Dell Flat Screen TV that is about a year and a half old. A couple nights ago it just randomly cut off on its own. Last night it did it a few more times. And I even noticed in the middle of the night that it would make weird noises (while it was off) like it was trying to connect or cut on and it couldn't connect. The noise sort of sounded like it was coming from the speakers and it was a loud noise. The only thing I have the TV hooked up to is the cable and the actual outlet. I made sure all of the plugs were plugged in tight, and even tried plugging the TV into a different power outlet last night and that did not resolve the problem. After being woken up in the middle of the night by the loud noises the TV was making (while it was off) I just decided to unplug the TV all together and I have not plugged it back up since. Do you have any idea what could be causing my TV to automatically shut down on its own? And do you have an y suggestions as to what I may be able to do to fix the problem? Thank you, Lindsay

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6 Suggested Answers

  • 1 Answer

SOURCE: Dell no sound

I got this solution from an apprentice on the site, try it out.

Posted on May 08, 2008

  • 1 Answer

SOURCE: dell 32' lcd

I tried this and went from no sound to a popping noise that does not adjust with the volume switch. It is either on or off.

Is there anywhere we can a replacement for this???

Posted on Aug 25, 2008

  • 90 Answers


the problem is the audio amp board has been fried. It needs to be replaced. This will restore the actual sound transfer to and from the speakers.

Posted on Feb 08, 2009

  • 6 Answers

SOURCE: plasma wont turn on? only power button will.

The problem is a $1.09 part. You will need a soldering gun, multimeter, etc.. Or someone else who is electronically inclined.

The fix for it is here:

I have the 46" Dell model with the same problem and this fixed it. Part cost $1.09 plus shipping.
I can't take credit for this persons post so post thanks on fix.

Just note, TV's can hold electricity even after being unplugged. So if you try this keep that in mind. You shouldn't mess with it until an hour or so after you unplug it. Or google "discharging capacitors" to discharge the electricity from the power board. Attempt at your own risk.

Posted on Jun 04, 2009

  • 1 Answer

SOURCE: I have the same problem with my 3 year old Dell 32 inch Tv

The audio amplifier board has a number of components covered with a tough brown waxy, rubbery potting compound. Very careful and tedious removal of this compound exposed many corroded component solder joints. The problem created by this potting technique is apparently a common problem with this sound board. In my case cleaning the corrosion of the circuit board proved to correct the sound failure problem. (Not for the faint of heart).

Posted on Jul 13, 2009

  • 3 Answers

SOURCE: someone gave me a dell

I have this tv, and have had the EXACT problem. my solution was simple. just need patience if you take the back cover off of the monitor, there are 2 boards on the outside edges of the left and right of the monitor. these boards are covered by metal shields. remove the 3 screws on each board shield and slide them off.(careful this can be tricky) on the boards are 2 capacitors that need to be replaced. 4 total, 2 on each board. the capacitors are 150uf at 35 Volts. go to your local electronics repair shop to get the parts and tools needed to do this repair.
make sure to get the polarity of these caps right. stripe side on cap goes to the minus.

Posted on Aug 14, 2010

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