I pulled the bulb and noticed dust clogging the vents in the bulb itself i carefully cleaned everything . with an air duster, TV is now staying on with no problems. the overheating did hurt the brightness of the picture so i think this an excellent "get u by until u get a new bulb ". it might be a good idea to preserve the life of the bulb to clean it seasonal to prevent overheating and shutting off.
Remove the lower front panel by removing the 2 large round screw heads at the lower back corners, one on each side. Remove the retaining screw on the right side of the metal horizontal retaining strip in front of the bulb holder, remove bulb retaining screw in the upper left corner of the bulb holder. Pull the bulb holder out towards you and check for dust build up on the top screen on the bulb casing, if there is an abundance of dust it will restrict the airflow across the face of the bulb which causes it to heat up and turn off. Once the dust has been cleaned your bulb should now work as it should without a problem.
TRY REPLACING THE BALLAST POWER SUPPLY FOR THE LAMP-THIS WILL HAVE TO BE CHECKED FIRST BY A SERVICE TECH TO VERIFY WHETHER THE LAMP DRIVE VOLTAGE IS SUFFICENT. IF NOT SUSPECT A BAD BALLAST POWER SUPPLY. ALSO COULD JUST A DEFECTIVE LAMP. AAA ELEC
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
This does not but does in one way make some sense(I had to read your question a few times).
The key here is the fan does not turn on-----If any of the fans (lamp or others to a lesser degree do not come on: The lamp fan must come on or in a short amount of time--it should turn the set off and some have a lamp light and a temp light----
The set monitors the temperature of the lamp especially when set is turned off---it will not turn the lamp off until it cools to a specific temperature is reached----hence if set on for while and just unplugged which will kill the power to the lamp fan the lamp or even ballast that drives the lamp can be damaged.
Voltage to the fan can be measured and it must come on when set is powered up-----issue could be either fan is bad or no voltage is reaching it===most 2 wire fans will have the voltage marked on them--24vdc equals 24 volts Direct Current etc.
If a fan NEVER COMES ON (especially the large lamp fan) sooner or later something is going to get melted or fry.
Your description is a very good one but the issue is a bit rare (fan dead).
I would if there first check for voltage at the fan when set is turned on---if its there but fan not running the fan is bad.
Seen a few where dirt on the fan or even moving the fan blades made the fan kick on but by then you KNOW it is bad.
Let me know if you have questions or what you find.
i see a couple possibilites. im not going to rule out a bad lamp. the lamp does come on sometimes. i have seen faulty lamps display this sympton. since it gives no error codes (blinks) and then does not shutdown. i feel this is a deeper cuircit board problem that a tech might need to troubleshoot. how long has it been since lamp been replaced
The CLS problem. Im thinking that at least you made a visual inspection of the power suply and the capacitors around it. Then if everything normal in the area then the microdisplay (inside the ligth engine) can be damaged. (when the tv is working normally the microdisplay sends a pulse to turn on ballast and lamp finally.
The sweetkyman: when the fan is bad th tv shuts down imm. (if you unplug the fan when the tv is working normal the computer detects the overcurrent system works and shuts down the set) when a fan is all dirty and tons of dust on it the tv tends to work but after some hours the tv shuts down.
Hello apharcha, 99.99% its the lamp. You may also have a faulty door, but thats kinda just 2% possibility. Change the lamp...its due anyway. List Price $200.00 Part Number
LAMP BLOCK XL2100U
I just recently had the same problem and finally my set would no longer turn on. I replaced the projector lamp and now my set works. However, when it first comes on, it only stays on for about 2 minutes and then goes off. After another minute, it comes back on and works fine from then on. I don't believe this double power up can be any good for the lamp, but I don't know if the problem is the lamp or the set. These lamps run on about 65 volts, but require a short blast from 5000 volt source to fire up. At $200.00 a lamp, I don't want to go buy another!