Question about Samsung HL-R5677W 56" HDTV

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Hlr5677w problem How do i check for gap on bulb and ballaster looks ok is there a way of checking if its working?? sorry it took me a while to answer i took out lamp and took back to store just to make sure it was not defective.

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No there is no way to check the lamp. You can check ballast voltages but thats dangerous. The main thing is to make sure the replacement lamp is the same number as your old one.

Posted on Jun 21, 2008

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Cadillac cts ballast


If the bulb has a black plastic base it is a halogen bulb and has no ballast. If it has a metal base it is an HID bulb and the ballast is inside the metal base. The HID bulb looks like this:

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No picture, sounds fine. Fuse blown


This set, I am sorry to say has no bulb and has no ballast circuit. There are three picture tubes inside this TV set. What exactly was the part you pulled out? Can you post a picture of the Part you pulled out?

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My Toshiba 62HM84 won't start. I replaced the bulb and it still won't start. I replaced the ballast and the most I got was 1 second of light then off. The TV tries to start but still won't. Any...


I HAD THE PROBLEM OF BULB NOT TURNING ON. SOME PEOPLE SUGGESTED TO GET THE BULB CHECKED WHICH WAS ALRIGHT, SOME SUGGESTED TO CHANGE THE BALLAST WHICH WAS SMART BUT THERE WAS NO WAY TO CHECK IT OTHER THAN PUTTING A NEW ONE AND TESTING IT. I CALLED THE TECHNICIAN AND HE CHANGED IT BUT STILL NO PICTURE AND SAME CODE OF BULB NOT WORKING. THEN HE CHECKED FUSE ON POWER SUPPLY RIGHT NEXT TO WIRES BRINGING POWER SUPPLY TO BALLAST BUT IT SEEMED OK. HE DECIDED TO CHANGE IT TO SEE IF THIS FIXES THE PROBLEM AND WE CHANGED IT. WE TURNED ON THE TV AND WALLAH. SUGGESTION IS TO CHECK EVERYTHING BEFORE SPENDING MONEY ON NEW BALLAST OR BULB. 2 CENTS OF ADVICE, IT IS SOMETIMES WORTH TO BRING SOMEBODY WHO KNOWS WHAT HE/SHE IS DOING.

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1999 Jimmy with Envoy package. Driver side low beam is burned out. Replacement from GM is $1200.00. Can I use an after market system? If so, how do I locate and remove existing HID ballast?


1999 GMC Envoy w/ same problem - we removed the bumper then had easy access to the ballast (two bolts on top and one on the bottom if I remember correctly). For the bumper, there are two bolts visible on top, then two a bit lower just inside. Remove the 4 bolts then you pull the bumper forward to unlatch and remove it. When you put the bumper back on, insert the lower bolts first - otherwise it\'s a pain to get them back in correctly. For a temp fix we removed the ignigtor/bulb and ballast, took the wires going into the ballast (regular bulb wires) and connected a 9006 bulb. We removed the retainer from the ignigtor to hold the new bulb into place, it took some adjusting to get it set in place but it worked nicely. We will be putting new/aftermarket headlight assemblies in soon, but this fix only cost $25; it was a quick solution that took about 2 hours.

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1 Answer

Replacing ballast


To confirm if the ballast is bad check the ballast board to see if the spark gap (on the ballast board) lights when you first turn the set on. If it does than the ballast is ok.

Sep 20, 2009 | Televison & Video

1 Answer

Viewsonic PJ550 lamp


Problem 1) The projector should put out a burst of 7000-15000 volts to start the lamp, and then immediately drop down to 60-100 vlts to keep the lamp lit. It sounds like the bulb blowing took out your ballast, or the ballast going out took the bulb (uncontrolled current = overheated bulb = boom)

Problem 2) Thats not a problem at all. HID lighting uses an arc to create light, just like welding creates light. Since it uses an arc, and not the heating of metal, there is no filament to test the resistance of. All the bulb is, is a special mixture of gasses and two very durable electrodes, with a gap in between.

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My rear projection tv stopped working the lamp has not blowen but the lamp is showing its open circuit with a multimeter. Should it be open circuit? the model of the lamp is 120w BP96-00271C


yes it is high resistance could be your balast... do you hear the arc in the spark gap on the ballast?
if not you may have no power to the ballast as in an open fuse or the ballast is defective or your bulb is defective ..they may not look blown.

Oct 07, 2008 | Televison & Video

1 Answer

60v500


Good Day, eger00;
Try this:

First, some clarification related to this Flowchart is necessary. The block which states * PSL #4 pin Voltage sequence is like below? a) high (3s) b) low (3s) c) high (15s) d) low (3s). This indicates seconds in which the ballast is attempting to light the Lamp. The Connector PSL is a very small connector that actually faces down with the ballast is installed. It is also very difficult to access. It's much easier to use the Spark Gap process for determining if the Ballast is attempting to fire up the Lamp. Take a look at the bottom of the flow chart below. If the Spark Gap sparks when trying to turn on the set, it's almost a guarantee that the ballast is working OK and it's the Lamp that's defective. Also, the LEDs on the front of the LCD will flash in sequence Left to right as this process is attempting to light the Lamp. The front LEDs doesn't guarantee that the ballast is functioning correctly, but it does indicate the System Control process for lighting the Lamp is working.
30_lam1.gif 30_lam2.gif
Good Luck, big IRISH.

Aug 16, 2008 | Hitachi 50V500 50 in. HD-Ready LCD...

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