Question about Zenith E44W46LCD 44" Rear Projection HDTV-Ready Television

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Question about your fix

You said it's probably the lcd board. Is that the same thing as the light engine?

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Actually the LCD drive board is part of the light engine. The light engine is made up of the lamp, ballast, light chamber, fans, lcd drive board, and 3 lcd panels with all optics and lenses included. Most of that is good so you save expense by having only the bad part repleced. Feel free to contact me if I can be of any more assistance, Russmann.

Posted on Jul 07, 2008


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Westinghouse SK-32H540S 32 in. LCD TV It went off by itself and now will not came back on. The power light flashing I did unplug it for an hour and that did not help.

i have been a tech for 26 yrs now i have seen so many postings on here about bulging caps and so on but there is only 1 thing to do our workshop has 18000 dollars in test equipment alone there is a great reason for this the amount of vereables that can go wrong with nano electronics there is no easy fix to this problem it needs to be seen by a certified electronics tech this is your best chance of having this tv fixed correctly im not putting down other techs on this site but some things we can fix by computer network some we cant imagine even if this tv was in my workshop right now it would take us over an hour just to find and fix the cause

i hope this helps you sir/mam

sonic boom electronics australia pty ltd.

managing director

Jan 02, 2011 | Westinghouse SK-32H540S 32 in. LCD TV

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The middle of the screen is blank

This is probably the T-con board and probably not worth fixing. It could be the signal board, missing back lighting, etc but again, probably not worth fixing.

Best Regards,
Beach TV Repair

Jul 04, 2010 | Samsung LN32A330 32 in. LCD TV

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Monitor lights up for 1 second then goes black, no menu or any other controll will work. I-inc, if191d

You probably have a blown power supply.

The caps on lcd flat screens can go bad and leave you with this condition.

The fix involves removing the power supply board from the inside of the monitor and replacing the damaged cap. I would recommend replacing ALL the electrolytic caps once you have the board out. The caps are inexpensive and someone with soldering skills shouldnt be too hard to find right?

Good luck and be careful!

Feb 18, 2010 | Computers & Internet

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Probably the inverter board is faulty. Thats the board that drives the fluorescent back light tubes. Not an easy fix

Nov 06, 2009 | Samsung Televison & Video

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Sdm x73 screen goes black

Here is one thing you can do to help get to the root of your problem.

Take a flashlight and shine it on the screen once it has gone to black. If you are able to see the screen information (your desktop) then you have a back light problem.

The fact that the bulbs come on at first and then go dark tells me that it is probably not the bulbs themselves and the fact that your power led stays on tells me that it is probably not the power supply either.

The most likely cause is the power inverter board which is usually a separate board attached to the video mother board and it powers the back light bulbs.

This is not an easy fix for someone who is not familiar with LCD displays but it can be done. I did a Google search on Sony SDM-X73 (if that is your monitor) and could not find any stand out instances of complaints. I also did a eBay search and could not find anyone selling replacement boards either.

Truthfully, my solution for you would be to replace the monitor. It will probably cost you more to have someone work on the monitor and fix it than it is worth. You can find 17 inch flat panels on eBay or CraigsList for cheap these days and I just saw a brand new Acer 22" with a 3 year warranty on the other day for $150.00.

You can try taking it apart if you want to but recycling it is the better option.

Good Luck,


Aug 28, 2009 | Sony DELUXEPRO SDM-X73/B (Black) 17" LCD...

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Dell 17" LCD TV takes a long time to come on 15 minutes or more

popping noise is an indicatior of a bd board. if the unit power light still lights amber, it probably the main board else the power board a circuit or two may have been fried. both boards need to be examined. questions, email me

Feb 05, 2009 | Dell W1700 17 in. HD-Ready LCD Television

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Back light goes out

You probably need to resolder the two coils on the power/backlight pcb.

greetings Drikus

Oct 02, 2008 | HP Pavilion F1703 17" LCD Monitor

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Motrolla Razr V3 LCD no Light

changing the LCD will not help that.....that problem is coming from your board so you need to have the mainboard replaced.

Sep 05, 2007 | Motorola Mobility RAZR V3

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