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Re: SQUEALING NOISE AND SET TURNING OFF
The squealing noise is a defective color wheel. When the color wheel does not get up to speed (or stay up to speed) the set will shut down with the blinking you describe. You need to replace your color wheel or have a tv shop replace your color wheel.
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It is possible that the replacement lamp is bad but more likely the TV has a protection mode that triggers wen the lamp goes out. Check the manual for ways to reset the lamp usage back to zero or a function that needs to be manually reset when the lamp is changed.
I have a Samsung DLP HLN617WX/XAA. After turning off by itself, the three indicator lights were blinking... signifying a defective lamp. I've re-seated the old lamp several times with no change. I bought a new lamp and reset the lamp hours through the "service menu" with no change. My television is still turning itself off and still blinking the same indicator lights. What should I look at, next?
HLP, HCN HL-S The Start-up Problem or/and 3 LEDs in the front blinking. Unplug the set, pull out the lamp module (not all the way - leave it on the track) and push it back in. Power issues (Tv not turning on) were typically due to faulty ballast. While the TV reports a bad lamp it is the ballast itself causing the issue. Samsung is well aware and will replace both the ballast and the lamp (since the lamp can be prematurely aged but the bad ballast). After replacment most people stop having issues.
The whine or squealing you hear is either the color wheel or fan. To determine which, when the noise is heard from the set, turn it off and listen carefully. If squealing stops immediately then Tthe fault is the color wheel, not the fan. And sounds like that are generally the color wheel.
A new color wheel is Samsung p/n# BP96-00250A for this model. Vance Baldwin carries them for $97.20 plus shipping. https://www.vancebaldwin.com
Logon as guest, select parts and copy past the above part number in without any dashes.