Question about Panasonic PT-47WX49 47" Rear Projection Television

1 Answer

TV shuts off in a few seconds after plugging it in the wall.

The first problem was the blue convergence so I replaced the IC chips and one 2.2 ohms 2 watt resistor. The tv did work before the replacements but now it will only stay on for about a few seconds.

Posted by on

  • 3 more comments 
  • heewony Mar 03, 2008

    Panasonic PT-47WX49...I had my laptop connected to the tv and was watching some videos on the tv this way and then the tv just turned off on its own. I used the remote to try to turn on the tv but it would not work so i pressed the on button on the tv but it did not work either. So I unplugged the tv and then plugged it back into the wall. The tv seemed started to turn on and stayed on for a few seconds and turned back off. When it turned off, i pressed the on button but nothing happened. The power on button will only turn on the tv for a few seconds and then not turn on even for second after that unless I unplug it again. Only then will it turn on for a few seconds and then shut off again. Is there any way that i may be able to fix this problem on my own?

  • Robert Ashmore Mar 03, 2008

    Thank You Premtech, I don't know if the IC's were Sanyo original or not but it was a STK392-110 and as for the resistors it wasR7059 and R7005. At I replaced the IC's and resistors I got the same problem just like heewony discription. I'm go to replace the IC's with 150 and check all the resistors, Thank You again.

  • wursy Mar 03, 2008

    Panasonic (PT47WX49E). TV turns itself off within seconds of turning set on. What could be the problem?

  • amg5150 Mar 07, 2008

    yup I just replaced the ic's 2 weeks ago and was working perfectly. then today my kid got behind there and unplugged it. now there is a strange whining sound for about 3 seconds then it kicks off. aaahhh! are the ic's bad already? and would it being unplugged from the wall cause this?

  • Anonymous Mar 10, 2008

    I am having the exact same problem, started last friday nite (3/7/08), my panasonic 47" just shut-off! Now it will only come on for maybe 2 seconds and only after I unplug and re-plug in. I bought this set at Costco exactly 5 years ago @ $1400. and would expect it should last longer than this!! Hope someone can offer some advice or give me a rough est. on how much it will cost me to get it repaired. Thanks

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 934 Answers

Where did you get your amps? If they are not Sanyo originals that could very well be the problem and Panasonic are bit more picky than others. Also what did you replace with the 110's or 150's? Going to the STK392-150's will give you a bit more reliability.
The 2.2 ohm resisto you replaced was it the usual R7048? Make real sure to meter the rest of them for change in value.
Bill

Posted on Mar 02, 2008

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Why is my Emerson LED tv turning off?


Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Jan 10, 2017 | Emerson Televison & Video

1 Answer

Connecting blue ray player to tv to get netflix


You must have a smart TV for this setup.

Jan 09, 2017 | Vizio Televison & Video

1 Answer

Can you repair a 24 inch BUSH smart TV/DVD.


Main power supply regulator board (SMPS board) fault. Check and replace it. If you wish to get more details visit the site linked here. http://electronicshelponline.blogspot.com/
Search the site by type in the brand name of your device in the search box at the top of the home page, to get gathered all the related posts.

Jan 09, 2017 | Bush Televison & Video

1 Answer

I HAVE AN AKAI HD TV DVB-T32W. When I started out first time, it autoscans but found no channel. press DTV or ATV, it,says "No channel. need to rescan". But nothing happens, thanks


Main system control memory IC fault. This is a very small IC; have 8 solder terminals, and can be located very near to the main system control-chroma IC. Check and replace it. Be sure to replace it with the same number printed on it; in all respect. Otherwise, it won't go. http://electronicshelponline.blogspot.com/ Before replacing it, try a reset to this set, and then check.
There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; check the site linked here.

Jan 09, 2017 | Akai Televison & Video

1 Answer

Truetech 10 inch under the counter tv is stuck on channel 2. I need 3. Channel buttons on tv & remote do not change 2 to channel 3. Unplugging, Resetting hasn't worked Any ideas?


Main system control memory IC fault. This is a very small IC; have 8 solder terminals, and can be located very near to the main system control-chroma IC. Check and replace it. Be sure to replace it with the same number printed on it; in all respect. Otherwise, it won't go. http://electronicshelponline.blogspot.com/ Before replacing it, try a reset to this set, and then check.
There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; check the site linked here.

Jan 08, 2017 | Televison & Video

1 Answer

Hi Bush tv is flashing but not turning on at all. What can i do?


Hi press & hold on-off button while holding unplug power plug from the wall continue holding for 30 seconds.,.Plug in the POWER plug while holding on/off button hold for another 30 seconds ......,.Good luck.,

Jan 08, 2017 | Televison & Video

1 Answer

Toshiba tv model32w2300A how repair? 0nly in the screen say do not put the power off


Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts. http://electro-medical.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.

Jan 07, 2017 | Toshiba Televison & Video

1 Answer

The word "Debug is on my tv screen. How do I remove it?


Unplug the power cord of the receiver box for 10 seconds and then plug it back.in job done..

Mar 23, 2014 | Televison & Video

Not finding what you are looking for?
Panasonic PT-47WX49 47" Rear Projection Television Logo

Related Topics:

41 people viewed this question

Ask a Question

Usually answered in minutes!

Top Panasonic Televison & Video Experts

 Grubhead
Grubhead

Level 3 Expert

4751 Answers

The Knight
The Knight

Level 3 Expert

71611 Answers

Jaime Hernandez

Level 3 Expert

2292 Answers

Are you a Panasonic Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...