Question about Samsung HLN467W 46" Rear Projection HDTV

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Bad light engine

Any suggestions on how to fix a bad light engine? My issue is similar to one another user has. Below is the description of what the tv is doing. It is a samsung HLN5076W.

The TV will be working fine then the picture will suddenly freeze in black and white pixels for a split second then disappear all together. I noticed one suggestion was a bad light engine assembly. Are there any other suggestions on how to fix that?

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Buy a new tv if its a bad engine the cost to repair it will be high about the cost of a new tv.

Posted on Aug 23, 2008

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Posted on Jan 02, 2017

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Pink splotches on white screen


I had a very similar problem with mine... You are correct, it is the optic block.. it will cost about a $1000 or so to fix. I chose to fix my 60" because I absolutely love these TVs. The Technology may be older but they are still great!!!!! (i.e. Instant Picture...no refresh rate required!!!)

If you think you also have a dust issue just get a vacuum cleaner and clean the vents on the back of your TV. You can also remove the Front Panel... take out the lamp (make sure your TV is COLD!!!...trust me on this) and vacuum what you can making sure you do not touch the back mirrors (located where your lamp goes in). You should do this every time you change the lamp at a minimum.

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What is a bad light engine and how do you fix it?


Your light engine is the life force of your TV. It creates the picture and projects it out for you to see. You do not fix a light engine, you replace at a cost between $400.00 - $800.00

Jun 05, 2012 | Sony Televison & Video

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Light engine blue bad any way to buy parts or fix


The only fix is light engine replacement. Search google with UX27712R part number. There will be many sources. All are rebuilt engines. If consumer buys the part and installs with no success, part suppliers will bring up issues relating to damaged by user or incorrect installation.

After replacement there may be some alignment issues or faults caused by incorrect installation and assembly.

Experienced technician that has changed an engine before, usually under warranty, has had an opportunity to learn the correct way to do it in a shop situation with known reliable parts.

User replacing may have a "no start" or "poor picture" situation and not have the experience or skill to recognize a secondary problem, minor connection problem or defective replacement part. It is more complicated than a fuse, bulb or other minor part replacement.

easyab

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DLP RCA HDTV is displaying bars from top to bottom of screen, with green tint. Is this the light engine going bad?


Hi

Thanks for using FixYa. This issue can happen due to a faulty light engine or due to a a faulty DLP Lamp. However, it can be an issue with the video driver card of your Card. I'll suggest to use a DVD player and check if the tint is still there. If the tint disappears then its an issue with the video driver card.
However, if it doesn't correct the issue its either a DLP Lamp or a faulty light engine.
Note-- Please make sure to turn off and unplug the TV for at least 1 hour (this will drain off current from all components especially capacitors) before you perform any repairs. Also note that the TV consists of very high voltages even when it is in OFF condition.

Before performing any repairs i'll suggest you to try and reset the TV by unplugging it for 8-10 hours.

Please do accept the solution if the issue is resolved or else revert for further assistance.

Thanks
Rylee

Nov 15, 2009 | Televison & Video

2 Answers

Dlp samsung


There are instructions to replace the lamp in the user's manual. The light comes up but if the lamp has now already several hours of use the resistance of the lamp increases and shut down the power supply of the lamp. Second, the lamp power supply could be bad too, but lets be optimistic and just replace the lamp first.

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1 Answer

Blue dots in KDF-60WF655


Yes, your optical block ( light engine) is bad. Heat generated by the lamp circuit with its poorly designed ventilation system, cause the LCD panels inside the light engine to fail. They are the size of a postage stamp. There are 3 LCDs, for red, blue, and green. The heat causes them to warp and de-laminate.

Sony has systematically downed played the scope of this issue. It appears however that virtually every LCD projector they make can develop damage in the light engine which is extremely expensive to fix.

I suggest contacting Sony and your state's attorney general's office of consumer complaints asking for action on this.

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1 Answer

51" Magnavox projection TV


I had the a similar issue. My TV broke - no sound and no video but the power light was still on.

I gave up and called in a repair tech.

He fixed my TV in less than 30 minutes by replacing a bad IC chip. He informed me that this is a very common problem with the older Magnavox TV sets and that its typicaly the same chip that fails.

I spent over 300.00 for the repair. The parts cost less than 20.00.

To help others in the same boat I put together a how to guide and parts kit on www.magnavoxhelp.com .  I'm not sure if it will work for you but it may be worth a shot.

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No picture


Hello Fliper,

These symptoms denote a shutdown circuit problem, and a problem in the section of the TV that provides High Voltage to drive the raster creating circuitry. In your case this would be the DLP related circuitry this would include the light engine (white light blub/Color wheel drive circuitry or LED array, DLP chip and associated circuitry). In any event if you are not planning on working on this yourself (which I would not suggest for this type of problem), Have a qualified TV repair technician come over and examine the TV and give you an estimate on its cost.

I would also tell you to expect it to be rather high since for your description of the problem it looks like a light engine problem, however it could be as simple as a blown bulb or LED array. The Technician will find that out.

I hope this helps,
Thank you,
Shuttle83

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1 Answer

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You have it sounds like a bad flyback transformer as well as a bad horizontal output transistor. Not a job for the novice or user. good Luck

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