Question about Samsung HLP4663W 46" Rear Projection HDTV

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Lamp on, has picture, sound intermittent

50 inch TV. Sound disappears after 30 mins -2 hours of play. Resumes only after switching TV off and on at the TV switch. Internal/external mute is off. Anyone got any ideas?

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Sounds like the main board

Posted on Aug 03, 2008

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Samsung dlp tv picture turns off sound stays on


Hello
Check whether the lamp life hours are going to be out. Refer to its user manual for details. DLP chips fault is very rare; unless you have handled them very carefully. Check the lamp and BALLAST baord that supplies voltage to lamp.
Picture of the ballast baord to your TV is attached.2_29_2012_10_35_36_am.jpg

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Have an lcd2010a wharfedale colour tv since 2005. It is out of warranty. Problem. switch on tv obtain sound and picture for 1 to 2 hours or even less 45 min. Then suddenly no picture, but sound or nothing...


try removing and re-installing the lamp cover on the back.
its a known issue with whaferdale tv's during manufacture, the lamp cover is not seated properly causing the safety switch to not engage all the way, when the lamp cover heats up and expands, it fall away further from the switch tripping it, shutting the set down.
when you remove and re-install the lamp cover, after you take the single ***** out, tilt the cover out and forward from the top about 3/4 of the way out and then tilt it back into normal position and put the ***** back.

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My tv comes on runs for 30 sec. then loses sound and picture for 30 sec. and the standby light flashes green for 30 sec. then the picture and sound comes on . then about 30.sec. later it does the whole...


Hi,
It is symptom of weak lamp that has been reached to an end of its working hours life but not dead/ broke yet.
If lamp has not been replaced in last 2-3 years then please replace lamp in tv to get solve this problem.
Lamp replacement procedure is easy and written in user manual, please buy Sony original lamp for good picture in tv.
Thanks.

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Your symptoms exactly match this scenario: a component involved in picture & sound was failing intermittently, then progressed to a hard failure.

My suspect: a power capacitor in the power supply. They sometimes fail this way - when the dielectric breaks down completely, then the power supply fails, causing no pic/sound.

Fix: replace power supply (or the specific capacitor, if you can determine which one died).

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Cable hooked up right...turned on this morning sound no pic


Ur tv been in use at least 1 1/2 or 2 years.On about 4 or 5 hours a day on this tv?The LED light indicator "LAMP" flashes?The projection bulb life is over.Require a new bulb.

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1 Answer

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Hi,do you hear any strange noises? If you hear clicking or like wanting to turn on it could be the board that powers the lamp it's called the ballast. But if you don't hear any strange noises,tv is around 6000 hrs,2-4 yrs it could be time to replace the lamp.The lamp you need is XL-2200.You can find it here: http://www.discount-merchant.com/Sony-XL-2200-TV-Bare-Lamp-Bulb-p/sony_xl-2200u_a1601753a_lamp.htm?Click=48173 Have a blessed one!

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My 50 inch rear projections picture cuts out after 2 hours and leaves only sound working, when you leave it off for a short time you can get 30 mins out of it. I had new bulbs fitted and made no...


looked up on this site and it seems it is a cooling issue the set is set to cut out if temperature reaches the set temp on micro-switch at back of unit, by-passing this switch solves problem and is helped if moving air is positioned at back of tv .

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SOUND AND PIC GOES OUT FOR 30 SECONDS, THEN PIC COMES BACK THEN SOUND. IS THIS THE LAMP OR THERMAL FUSE OR WHAT.


The lamp is going bad. If it was the thermal fuse it would not be intermittent. It is very common for some Sony sets like yours to do exactly what you describe when the lamp is going bad.

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if the sound is a kind of arking or sparking about 2 seconds when you turned on the tv, and it does now any time you turn on the tv. is a normal protection system the tv has. but the bad news is the tv needs the lamp. That sound i'm telling you is the current needed to turn on the lamp and it has to go any place when the lamp is could not get on.

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Its symptom of weak lamp, please replace lamp. Lamp replacement procedure is written in user manual and always buy original Sony lamp for replacement.

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