20 Most Recent HP PL4260N 42 in. Plasma HDTV Questions & Answers

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MY HP TV CHANGES INPUT SIGNAL BY ITSELF

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.
7/7/2017 11:33:29 AM • HP PL4260N 42... • Answered on Jul 07, 2017
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Hello I have a HP PL4260N no picture, what can I do to trouble shoot?

If you wish to get some details; visit the site linked here. Pull up older posts. http://electro-medical.blogspot.com/
1/5/2017 4:03:17 PM • HP PL4260N 42... • Answered on Jan 05, 2017
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Supplying high quality tvs in the us tvs for over 35 years keeps popping up on the screen

The TV is in demo mode. Turn it off via the menu; the instructions would be beneficial here.
2/3/2016 1:07:49 AM • HP PL4260N 42... • Answered on Feb 03, 2016
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THE MENU KEEPS POPPING UP ON THE SCREEN CONTINOUSLY ON MY 42 INCH

I had an LG 37" LCD that did this to me. Turned out to be bad solder joints on the side button board. Just reflowed and it starting working fine.

But now that I think about, I had another set do the same thing, only it wasn't the button board. I had to upgrade the TV's firmware via the USB service port. Just needed a USB flash drive and downloaded the firmware from the mfg's website. There were easy to follow instructions there too!
12/18/2015 9:10:18 AM • HP PL4260N 42... • Answered on Dec 18, 2015
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I have a Hewlett Packard 42 " plasma it has no picture or sound what could it be please help

Fault to the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
6/3/2015 11:45:02 AM • HP PL4260N 42... • Answered on Jun 03, 2015
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Could my picture tube be out ?

plasmas dont have tubes,there are 3 computer boards inside that can go bad,power,control and backlight,contact the company for service
6/3/2015 1:22:46 AM • HP PL4260N 42... • Answered on Jun 03, 2015
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I have a hp plasma TV 55 about 9 years old there are red dots all over screen in the dark areas. Is the TV shot or can it be repaired?

It might be repairable, but the repair will likely cost you triple what a new TV will cost.
4/21/2015 5:27:09 AM • HP PL4260N 42... • Answered on Apr 21, 2015
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I was watching my tv and heard a pop sound and the

Ur LCD inverter board it dead.Require changing to get the picture back.
2/8/2015 6:51:48 PM • HP PL4260N 42... • Answered on Feb 08, 2015
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Have same tv HP 42 plasma, red light is on but no image or sound. all I can hear is a click sound when I first plugged it and another one followed few seconds after. what could be the problem?

Many LED TVs and other electronics have bad capacitors on their power supply boards. You can visually inspect them by opening the TV and looking for capacitors with bulging tops. If tou see any, replace them all in the power board section. Check to see if your TV is still under warranty first though.
12/3/2014 10:42:59 PM • HP PL4260N 42... • Answered on Dec 03, 2014
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I have a Grainy Screen with Horizontal lines, There is picture behind this. Is this th Ysus Board? I have a HP PL4260N 42 In

Is it only when connected to the computer? If so there are several settings that could be causing the issue. The biggest is the refresh rate, make sure it's set to a max of 60HZ. Also make sure the resolution is not set to high. If your TV is 720p it's 1280x720, for 1080p it's 1920x1080 MAX! Also make sure the cable is tight on both ends. If all this is okay, it may be a hardware issue, but it's doubtful. Try hooking the computer to another TV. If it's not a computer the issue is most likely either the source resolution or the cable. Good luck
4/10/2014 10:25:07 PM • HP PL4260N 42... • Answered on Apr 10, 2014
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Hp pl4260n 42in plasma not responding

Sounds like a main board fault. Contact any service technician to confirm. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. http://electronicshelponline.blogspot.com/
2/5/2014 2:11:49 PM • HP PL4260N 42... • Answered on Feb 05, 2014
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REMOTE CONTROL NOT FUNCTIONING & LED POWER INDICATOR ON STANDBY

Check the remote control for its infrared emission first. Check it with fresh batteries. If you wish to get some details, check the site linked here. Pull up older posts. Check the site in 'Mosaic' view. It will make search easy. http://electronicshelponline.blogspot.com/ Details about how to check a remote control is given.
1/12/2014 12:26:07 PM • HP PL4260N 42... • Answered on Jan 12, 2014
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I have a HP PL4260N that works fine except for a whiteish hazy patch that will show up on the screen in various spots at times. Also when I have a picture up that is mostly white, like this web page,

The buzzing is normal thing, because white screen requires most power and your chopper works at its max. The sound comes from inductance coils and transformer because of old isolation and glue which shouldnt make any problems.
12/6/2013 11:08:12 PM • HP PL4260N 42... • Answered on Dec 06, 2013
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