How can i check whether the ballast on my hlp4663w is good or not? i need a new lamp for sure, but i suspect the ballast is bad too. can a bad ballast damage the new lamp (i don't want to buy a new ballast without knowing it is bad for sure)?
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Re: ballast on samsung hlp4663w
The transformer can't damage the new lamp. Faulty transformers normaly take out the driving transistors or the fusible link in the power supply, if these are good then just replace the lamp. Espacially if you know the lamp is bad (test it by swapping with the others if unsure)
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If the capacitor on the ballast was puffed up or blown up you have to replace the lamp, ballast & SMPS at the same time. But if the ballast is not trying to fire the lamp it sounds like the color wheel is not coming up to speed. If this is the case, the set will not turn on.
I have a HNL5065W samsung that i just repair if it was the lamp you would not get sound,When Lamp goes out set will not come on only Flashing front lights, how long does yours play before cutting OFF? There is a couple of capacitors that will go bad on power board,CK to see if any of the capacitors are puffed up on top if so thats your problem.,But remember Ballast starts up LAMP CK the big capacitor on ballast board and small ones ,also Keep in mind it could be Ballast,if set keeps playing with sound and no picture another thing make sure nothing has come unpluged on DMD board, this board also will keep lamp from firing.OK heres another thing IF COLOR WHEEL is not spinning correctly lamp will not fire up, if it spins to slow or too fast most samsungs start out with Bad Color Wheel.I Buy on E-Bay got My lamp for 85.00 Ballast board 55.00 Ballast board at other companys 117.00 plus shipping! Color Wheel was 65.00.
Actually7 there's a possibility that your ballast is the one causing the problem, the thing is that with samsung tvs what goes bad most of the time, besides the lamp, are the ballast and the colorwheel, in this case my hopes are on the ballast, but if you want to be more sure discountdashmerchantdotcom
If you haven't replaced the lamp recently, its the likely cause. If the lamp is known to be good, its possible that the ballast board (lamp driver/power supply) is defective. And, in some cases, the lamp door interlock switch may be the culprit. So make sure that the lamp door is properly aligned so the switch engages properly.
Did you order an ORIGINAL REPLACEMENT LAMP? There's lots of guys out there claiming to sell original lamps but there really not the original. For Samsung TVs (The majority of them) use Philips branded lamps. Check and make sure you lamp is a Philips lamp.
Check out FixYourDLP blog for more information as there's lots o interesting reading there