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TV and Video rear projection 42 inch Samsung

TV tech said coolant leaked and fried circuit board. Can boards be sourced and TV repaired or send to trash. 4 yrs old

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

Posted on Oct 26, 2008

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My 52 inch rear projection tv pops and goes off and won't go back on for awhile


Sounds like something on the power board is overheating and shutting down. If you aren't completely comfortable working around hot circuits be very careful attempting to determine what is overheating.

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1 Answer

My 42" inch fried something


Ur tv still have picture,just have convergence problems wright?This tv is fixable,the tv convergence board have dead 2 STK convergence ICS and some or all of it resistors too.Replaced all these parts on the tv convergence board,will solved the tv convergence picture problems.The shop,will cost u like $300-350 for parts and labors.

Dec 16, 2010 | Mitsubishi WT-42311 42" Rear Projection...

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Liquide coms from RGB back projection tv.


The CRT will need to have new Coolant and new seals installed, and any circuit boards that were dripped on will need a very detailed cleaning to remove any residule as it can ruin the circuit board traces and solder connections

Jun 18, 2010 | Samsung HLR5087W 50" Rear Projection HDTV

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Apparently leakage has come out of the tubes and


Yes its a very common in Samsungs to leak CRT coolant onto the boards that drive the CRTs. Most repair techs will automatically check for leaking CRT coolant on Samsung and mitsubishi simply due to their history of that problem.

Aug 21, 2009 | Samsung PCH521R 52" 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...

1 Answer

Circuit Board for 55PW9363


You can try PTS Electronics. the have rebuild boards or you can send yours in for repair

PTS phone 800-844-7871

Apr 10, 2009 | Philips 55PW9363 55" Rear Projection...

1 Answer

Samsung 42 inch rear projection not working


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..

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

Need new green picture tube


You dont need a new tube. What you need is to repair the seal on your old tube and replace the CRT coolant fluid. There is a coolant chamber attached to the tube with long bolts with springs on them that contains coolant to prevent your tubes from getting hot. Yours may just need tightening, but I would replace the seal just to be safe as thecoolant can and will destroy your circuit board if its allowed to continue to leak on it.

Jan 15, 2008 | Samsung HCL4715W 47" 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...

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