Will not power up after replacing the lamp - Akai PT46DL10 46" HDTV-Ready Television

Please read here: http://esupport.sony.com/US/perl/news-item.pl?mdl=KDF42WE655&news_id=84

From SONY:
If the screen becomes dark, the color looks unusual, or the LAMP indicator on the front of the TV flashes, it is time to replace the lamp with a new one (not supplied).

Use only a replacement Sony XL-2100U or XL-2100 for your TV. Use of any other lamp may damage your LCD projection TV. Contact your Sony dealer for a replacement lamp.

Click here to download step-by-step directions for replacing your TV's lamp.

Note: Before replacing the lamp, turn the power off on the main unit. Wait several minutes, then unplug the power cord. (The cooling fan will continue to blow for about two minutes after turning the power off.)

Be sure to allow the lamp to cool down completely before removing it. The surface of the lamp remains extremely hot for at least 30 minutes after the power has been turned off.

When you replaced the lamp, did you use a patten part lamp or an official sharp lamp. When you replaced the fuse did you check there were no signs of burnt components on the board was the power disconnected when you changed the lamp

hi,
1.Turn off the power on the main unit. Wait several minutes, then unplug
the power cord.
(The cooling fan will continue to operate for about two minutes after
turning the power off.)

2.Wait at least 30 minutes after unplugging the power cord to allow the
lamp to cool down before replacing it.
Take the new lamp out of the box.

3.Remove the Front Panel Cover.



4.Pull out the lamp.
Loosen the screw on the lamp cover with a coin or similar object to
remove it, slide the knob to left, and then pull out the lamp cover.

Loosen the screw that holds the lamp, then pull out the lamp.


5.Reattach the lamp.
Place back the new lamp and tighten the screw.

Replace the lamp cover, slide the knob to right till the up arrow down arrow mark
matches, and then tighten the screw.



6.Reattach the Front Panel Cover securely.
ok

Hello,


Your power supply board is dead, u know basic electronics' and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.


I hope this will help to solve the problem,,,,

hello make sure the lamp is fitted securely and the lamp cover aswell

regards
shaun

Yes you need to replace lamp,so you buy a new lamp.

To reset the lamp operation time on a Mitsbishi XD480U:

Plug in the power cord, turn on the lamp, and press the Left Arrow button, Right Arrow button, and POWER buttons on the control panel ALL AT THE SAME TIME, holding them all down for about three seconds.

Notes:
•Unless these three buttons are pressed at the same time, the lamp operation time isn't reset.
• Make sure that the STATUS indicator is lit twice and the lamp operation time is reset successfully.
• The projector doesn't turn on if the lamp cover isn't attached securely.
• Be sure to reset the lamp operation time whenever you replace the lamp.
• Do not reset the lamp operation time unless you replace the lamp.

The ballast board controls the lamp. The lamp socket wires connect directly to this board, so locating it isn't difficult. Replacement parts can be had here : www.shopjimmy.com TV Parts Universal TV Stands DLP Chips ShopJimmy

Here is the proceedure to replace the lamp and reset the lamp hours.
Lamp Replacement Procedure:
1. Press the POWER button to turn off the power.
2. Wait for about 1 minute until the cooling fan stops.
Note:
The lamp cooling fan will continue to operate for about 1
minute after the power is turned off. Do not unplug the AC
Cord from the outlet until the fan has stopped. Avoid
interrupting the power by using circuit breakers or switchable
power strips.
3. After the cooling fan has stopped, unplug the AC Cord from
the outlet.
Note:
Please wait more than one hour before replacing the lamp.
[ Forced cooling function ]
If you need to replace the lamp more urgently:
- The Projection display has a forced cooling feature.
After the POWER button is turned OFF, and during the
first minute of the normal cooling fan operation, press
the VOLUME UP button on the unit and CH UP key on
the remote at the same time for more than 5 seconds.
The cooling fan operates for about 10 minutes. (LAMP
LED will flash 5 times every 5 second and POWER LED
will flash red for 10 minutes.)
4. Remove the Front Cover Unit from the latches.
5. Turn the Knob to the left.
6. Pull the Lamp Cover out.
7. Loosen the Screw on the Lamp. Then, pull the Lamp.
Note:
Because the Lamp may still be hot, use caution when
handling.
8. Install the new Lamp, and tighten the Screw.
9. Install the Lamp Cover, and turn the Knob to the right.
10. Install the Front Cover Unit.
Lamp Time Reset Procedure:
Be sure to reset the Lamp time to "0" after replacing the new
Lamp.
1. Plug in the AC Cord, and turn on the power by pressing the
POWER button.
2. Press and hold the VOLUME DOWN button on the unit and
the SPLIT key on the remote together for over 5 seconds
in power on condition.
When the reset is finished, the display will indicate that the lamp hrs have been reset to 0 and the LAMP LED goes out.

Replace the lamp, also the shut down time is correct the unit must allow plenty of time proper lamp cooling. otherwise the lamp life will be greatly shortend. normal lamp life is 3000 hrs.
lamp replacement may require an internal limp timer reset have a qualified tech replace the lamp.