I bought a new replacement lamp (XL-2100U) and changed out the old bulb. Now when I turn on the TV the picture comes on and stays on for a few minutes and the bulb goes out. It repeats this for about 15 -20 minutes and then the bulb stays on and the TV is fine for the evening. Any suggestions about what may be happening and how to fix it?
I recently had a similar problem after replacing my lamp the set would work for 22 mins then go into standby for 30 sec then come back on, then repeats, I decided to experiment with the lamp housing, I removed the new lamp, unscrewed the top of the lamp that holds the actual bulb then switched out the main housing (bottom part) with the original housing, that seemingly has corrected my problem, you may want to try if the replacement lamp did not come from Sony...good luck
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The lamp you need is Sony XL-2100U ($78 at Amazon) or XL-2100 ($84 at Amazon).
Turn off the TV and wait a few minutes before you unplug it (let the cooling fan run). Then wait at least another 30 minutes before replacing the lamp. There are two screws on the rear panel (left and right sides near the top left of center of the small panels on the on the ends). Loosen the screws and then pull off the front panel (below the screen). The front panel has to be pulled off in stages - start at the right side and pull forward and down, then the left - pull forward and down and then the middle - pull forward and up. Loosen the screw on the lamp cover with a coin and remove the cover. Loosen the two screws that hold the lamp (use an allan wrench) and remove the lamp by pulling it straight out. Slide in your new lamp (handle with care - use a glove to avoid any oil from your skin getting on the bulb). Tighten the two screws. Then replace the lamp cover and tighten the screw. (Make sure that the screw goes into the unit straight - otherwise the safety lock may keep the TV off.) Reattach the front cover and then tighten the back panel screws. Put the old lamp in a box after it has cooled completely for disposal.
Some of the ICs on the power supply block are damaged. This can possibly due to high voltage or defective IC. What you can do now is to get a new PS block. If you can get me the part number i can help you find it..
Had similar problem. Thought it was the lamp. Examined old lamp but it appeared to be good. Ordered a new one anyway. Changed the lamp but the TV screen would not come on. It would make the usual noise as it was going to come on normally but it would cycle 3 times & then turn off. The LED lights in the front panel would indicate a defective lamp. Then read about the ballast. Changed the ballast & still same problem. Tried starting the TV without the lamp installed & noticed that the color wheel did not spin. Removed old color wheel & discovered it was broken. This appears to be the cause of all of my problems. I wish I new earlier of the test-turn on the TV without the lamp being installed & check to see if the color wheel is spinning. Would have save money on the lamp & ballast.
It is symptom of weak Lamp (bulb) that requires replacement. You can buy Sony original lamp from Sony Accessories Store. Lamp required for KDF-42WE655 part number is as follows.. A1606034B
LAMP BLOCK XL-2100U
I had the same and replaced the lamp - made a big difference. Got the bulb on Ebay for $82.00 with free shipping. Just the bulb without housing, seller has instruction online for changing bulb - very easy. River Valley Electronics Here's a link http://cgi.ebay.com/XL2100U-XL-2100U-A-1606-034-B-A1606034B-LAMP-FOR-SONY_W0QQitemZ370154719357QQihZ024QQcategoryZ149975QQcmdZViewItemQQ_trksidZp1742.m153.l1262
I just purchased a replacement lamp off ebay and the TV is working fine now. Color looks better too (which I guess I should have expected). Search for "REPLACEMENT LAMP SONY XL-2100U" on eBay and look for seller "niosales". I paid $129 out the door. Their are other auctions for this lamp you can check out. Make sure you look at lamps that include the entire lamp housing, not just the bulb.
Tried to turn it on? Sounds like you need to replace the lamp. However, I got an additional week out of my unit. Although poorly dimmed and the red Lamp light blinked constantly for that one week, at least it gave me enough warning to seek out a replacement. But so long as you're not mistaking the Power/Standby or Timer light for the Lamp light then I would have to agree with you.
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