PT47WX42 47 powers on then off powers off after all the lamps light up. There is no video present. The power lite only blinks once after it powers back down.

Hi,

The Standby/Power light of the TV blinks when there is any internal malfunction in the TV. The self-diagnostic function of the TV will cause the STANDBY light to blink or flash when the television detects an issue. The number of times the STANDBY light flashes corresponds to a specific issue.
Few examples are given below; some of the issues may be resolved without the need for service.
1 blink / 2 blinks / 5 blinks: - This indicates that there may be a power-related problem with your set.
3 blinks: - This indicates that there may be a power-related problem with your set. The set will need to be serviced to allow a technician to determine the specific issue that needs to be repaired. If the power light flashes three times in sequence in a Lamp TV, the lamp cover is not securely attached. Reattach the lamp cover to resolve this issue.
4 blinks: - This indicates that there may be a back light or lamp power problem.
6 blinks: - This indicates that there is some kind of audio problem with your set.
7 blinks: - This indicates that there is a temperature problem with your set. Please check to make sure that the air vents on the sides and back of the set are not blocked or clogged and there is adequate ventilation around the television. We recommend that you check and clean the vents periodically to make sure the set receives adequate air flow. If the problem continues, the set will need to be serviced.
8 blinks: - This indicates that there may be a video-related problem with your set. If the flash sequence is not listed above or the light continues to flash, follow the steps below to perform a power reset:
Try the following steps to check if the issue can be resolved.
Turn off the television.
Unplug the television power cord from the electrical outlet.
Let the television remain without power for 60 seconds.
Plug the power cord back into the electrical outlet.
If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.
If the issue continues to occur, service may be required.

Thanks for using Fixya.

The wireless board on the main motherboard must be checked to see if it has come loose. This presents as the charge orabge lamp works with the charger pluged in, On green light comes on when power switch pushed once and stays on without flashing. Pushing the power switch once more puts the green light out. Bruce

Hi,
Please check lamp in tv as pop sound seems broken lamp.
Did you replaced lamp in last 2-3 years in tv? If not, then its lamp that got broken and tv needs new lamp.
Lamp replacement procedure is written in user manual and its easy, please buy Sony original lamp for good picture in tv.
Thanks.

sounds like the lamp

A little explanation first- this model (as do most Samsung DLP sets) will try 3 times to get the lamp lit before the microprocessor will give up and then the 3 lites on the front will blink indicating a LAMP failure. This process takes about 1 to 2 minutes. In order of probabilty, the failures are:
1) A faulty lamp and/or ballast. REPLACE LAMP AND/OR BALLAST
However, a faulty lamp and/or ballast are not the only things that will give this blink code-
2) If the color wheel has a bad bearing and turns too slow or not at all, the microprocessor WILL NOT let the lamp light, and then give a LAMP blink code. A bad color wheel will normally have some sort of abnormal sound- a low growl or high pitched whine is common. REPLACE COLOR WHEEL
3) ALSO, if the microprocessor (on the DMD board) in its color wheel rotation detection or processing fails, once again the lamp is prevented from coming on and you get a LAMP blink code. REPLACE DMD BOARD
IF THE SET EVER COMES ON WITH A PICTURE for even a fraction of a second or though it takes many tries, the lamp and ballast are good. The problem must be either the color wheel or DMD board.

epson will not sell parts to anyone who is not an authorized service center. sorry. if you can get the part from an asc, then you can replace it.

Need to know how many times the red light is blinking in between pauses and I can assist you. Please reply to this same post

it's not the lamp, it's the ballast. when it's fully discharged, it needs too much power to start. once it has the caps charged (when it's been running and warm), it'll start right away. it sounds as if the capacitors on the ballast are drying up. best to replace the ballast. after you do, make sure the projector is free of dust and dirt. excessive dust will cause premature power and lamp failure due to lack of cool down.

You have one of the following issues.Be sure to check that the lamp door is properly attached. This can cause the the lamp light to go on.
1. Bad thermal sensor for the lamp.
2. Bad ballast.
3. bad supply voltage from power supply.

Having similar issue with my PT-44LCX65. Lamp blew and replaced it (last month), never figured out how to reset timer. Now red indicator light blinks once every 5 seconds and after about 4 minutes TV goes black.... Any ideas?