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Samsung 42 inch rear projection not working

We had a tv repair guy tell us that it will cost 900 to fix. the circuit boards need replaced because something broke and leaked on them. is this something we can attempt to fix or is it ready for the trash? tv 4 years old.

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If you have no prior experience repairing TV sets, I wouldn't recommend opening it up under any circumstances. There are voltages inside that can kill, even when unplugged.

Your safest bet would be to go with a repair guy. Shop around for various prices. In the end you will have to weigh the cost of repair against a new set and decide..

Posted on Oct 26, 2008

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What cost would it be to repair a cracked lcd tv its a 42 inch samsung


not sure what is wrong with it. but a service charge just to come look at it is 80:00 dollars depending on the aera you live then when they check the tv they will tell you what is wrong and give you an estatment of the cost ( remember that is just an estatment)

Feb 26, 2010 | Samsung HCN4226W 42" Rear Projection...

1 Answer

When I turn my rear projection television on, the


Ur power board ic converter board it dead.
U know about a little about electronic the plug
go direct to the board order that board or repair man cost part labors about $575.

Aug 13, 2009 | Samsung HCM422W 42" Rear Projection...

2 Answers

I have a Samsung rear projection TV, not sure what model number or anything, it is about a 42 inch and about 6 years old now. The problem first started several months ago, basically when the TV was turned...


sounds like the convergence chip. i think you can get a kit from tvrepairkits.com not sure how much it would be to have fixed. But if your good with a soldering iron i think their kits come with instructions as well.

May 18, 2009 | Samsung HCL4715W 47" Rear Projection...

1 Answer

TV and Video rear projection 42 inch Samsung


If you know what to look for, you can try here:
http://servicemanuals.vstore.ca/

Oct 26, 2008 | Projection Televisions

2 Answers

Samsung rear projection television HCN4226WX/XAA


Dead Samsung

I don't recommend working on the TV unless you have some experience and knowledge relating to the safety issues and electronic repair. Most rookies will not successfully complete the repair and probably do more harm than good.

Sometimes when the convergence chips fail, the TV senses the changed load condition and shuts down.

Unplugging the blue, red or green convergence connector on the convergence board removes the overload condition if the IC is shorted and allows the tv to run, with one color missing.

This is done with the tv unplugged. Then plugged in and turned on to see if it starts. Turn off immediately if you here it start.

Now you know if convergence failure caused the shutdown. You can repair the convergence circuit if that is the problem.

If this has no affect, then you could have a number of different faults in Vertical output, Power Supply or HV circuits that require the expertise of a qualified service person. This would be a bench repair in most shops.

If you live around Calgary, Alberta try me instead:

http://calgaryconvergencerepair.weebly.com/convergence-explanation.html

Or try to the find the repairperson part of this website (on the Homepage) and search postal code. Maybe you will be lucky and someone from your area is listed for Projection TV repair.

Most rookies doing this job will cause damage and not be successful. They will pay double for someone to fix their mess or end up scrapping the TV. It is not a simple task. It is more difficult than batteries on a remote.

Good Luck

easyab

May 27, 2008 | Samsung HCN4226W 42" Rear Projection...

1 Answer

Power circuit board needs to be replaced


Samsung parts
http://www.partstore.com/Part/Samsung/Samsung/

Jan 29, 2008 | Samsung HCN4226W 42" Rear Projection...

1 Answer

TV picture not straight


There are no manual adjustments inside. this problem happens to many sets of all different manufacturers and models of c.r.t proj. type tv's. What has happened to your tv is most likely that one of the ic's (large black modular looking things about 2" by 1" by 3/8" fastened to a large aluminum slab of metal called a heat sink) on one of the large circuit boards has SHORTED OUT. The number on these ic's is stk392-***. If the asterisks shown are 110 then there is an upgrade of 180. If say the last 3 numbers are 040 then there is no upgrade. Anyway both Ic's need to be replaced and any associated resistors in the circuit area that have burned open or got hot and changed value also must be replaced..in addition a calibration of the convergence may need to be done either according to your operators manual or factory service manual by using your remote control and/or buttons on the front panel of the tv. Sometimes a samsung will have a small circuit board separate from all neighboring circuit boards that only has the convergence circuit on it. In that case the complete board should be replaced if possible. Do not attempt to do this repair yourself unless you are expert in electronics or guided by one. Above all do not attempt to make any repairs without being sure that the set is NOT plugged in.

Aug 21, 2007 | Samsung HC-P4241W 42" Rear Projection...

1 Answer

Samsung projection tv


Elissa, unless you have some basic electronics experience probably not, what your describing is one of the most common projection tv problems there is, but it will require replacing a few components on a circuit board. You will need to solder and possibly check resistance values of a few resistors. I will say there is no need for a samsung servicer, any tv repair place will know how to repair this problem. Probably will cost around 300 if you have somebody to your home. I don't think your looking for the Technical details but if so replace the 2 large STK amplifiers probably (STK392-040) and test all resistors and fuses in input/output ckts, replace accordingly.

Apr 25, 2007 | Samsung HCN5527W 55" Rear Projection...

1 Answer

Annoying Scan type Lines


First you need a new repairman. It should not cost 800 to 900 dollars to repair any or all of the boards in the unit and any reputable repair facility would deduct the cost of the service call from the bill not add it on. The Perfect Focus problem sounds like a convergence issue. It's hard to tell from your description whether the bars are misconvergence or something else. Bad CRTs? Maybe, but I doubt that is the problem with only two years on them. You need to check with friends or neighbors and find a repairman who knows what he is doing and isn't out to fleece you or talk you into buying a new unit. I've fixed plenty of projection TVs for under $100 (We only charge $75 for a service call, work on your unit for 1 hour, and subtract this from the cost of repair) If I can fix it in an hour with no parts it only costs you $75. Get a new repairman with intelligence and integrity and I think your problems will be solved at a price you can afford and be happy with. Good luck.

Jun 30, 2006 | Samsung HCN653W 65" Rear Projection...

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