Samsung 42 inch rear projection not working

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)

Most likely the lower buffer board " E " needs to be replaced. Right now I'm working on repairing a 42" Samsung plasma HP-R4272. The Service manual for that TV says for trouble shooting for that problem is the lower buffer board " E ".
Best to find the correct Service Manual for your TV over the internet to get the correct part number for replacement. The Service Manual should be less than $20.

What was the original problem?

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.

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.

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

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

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.

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.

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.