Posted on Jun 19, 2008

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HLN467W Samsung DLP

My 3 year old samsung was just turning off usually in the beginning and I would have to reboot to work.
This has been going on for a while and I put up with it.
Last night the screen went to black and white with a strobe effect and a
loud fan type noise.Tv will not come on.
The read out on front sez lamp and temp.
Does the bulb need replacing,does it show burned out because mine looks like new and the bulb fan was not running as I looked at inside of TV.
Any suggestions.
ALSO i have a small 2 inch shadow over the bottom left corner of the screen and you can see through it a little
Please let me know.

cat fish Jun 19, 2008

I realize there are only 2 moving parts in the TV.

Cooling fan and Color Wheel.

I have been all over the internet and have decided it is either 1) bulb 2) Ballast or 3) Color wheel.

I know it could be a board or a light engine.

I am looking for more information to detail what exactly I need to replace.

The bulb issue I need to know if mine is bad.

Usually if a bulb is bad it goes out totally, but mine has not.

Please can you be more specific.

Thanks you for your help.
cat fish Jun 19, 2008

I need more information than just refer me to a web site I have already been on.
Does the tv light bulb need to look bad to be bad?
Could there be other issues with this TV?

5 Answers

Anonymous

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The blink code you see on the front should indicate what the TV thinks is the problem. If the fan has stopped, the set will shutdown. Lamp failures will not necessarily be visible by looking at the lamp. Check the owner's manual for the LED indicator code and check whatever it indicates. Try a new lamp as bad lamps can cause all kinds of odd behavior. Report back with what you find. In the meantime, I'll look up your model to see if there are any common problems/solutions.

Dan

Anonymous Jun 19, 2008

I forgot to add...

The ballast may could be the problem as well. The ballast needs to fire up the lamp. The lamp may not fire at all or attempt to fire and not stay on if the ballast is bad.

In regards to teh "burned" area, it is possible that one of the filters inside of the light engine has charred a bit. This is normal as the set ages and is not usually noticable until high use hours.

Lets resolve the on/off problem first. Then we can address the corner issue.

Dan

Anonymous

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Check the color wheel as it is the most common problem when it comes to noise from DLP's.
To see if it is -
Turn on the set.
When the noise starts, turn off the set. If the noise goes away within 5 seconds, then the color wheel is faulty. If the noise goes away after one to one and a half minutes after the set was shut off, then it will be one of the fans making the noise.

Anonymous Jun 19, 2008

Check the motor that is making the noise. Especially check any capacitors that relate to the drive motor. It is not uncommon for mechanical failures of solder joints to cause motor problems.

The "shadow" you note, may be connected to this, but should be easier to spot when opened.

Anonymous

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Better replace the fan and since your tv went to black and white it is better to check the picture tube part since it is 3 years old

Anonymous Jun 26, 2008

your tv is having some voltage problem better consult some technican

Anonymous

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Power supply seems to be faulty. Better take it to an authorized service station to check.

Anonymous

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I found this that can be help you
http://www.jangro.com/a/2006/07/24/samsung-dlp-replace-color-wheel/
Sergio

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