Question about HP PL4260N 42 in. Plasma HDTV

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HP PL4260N 42 in. HDTV Plasma Television power button is purple... won't turn to blue... won't power off...just purple... when I press and hold purple power button, it powers off and turns red for abt 1 second and then turns purple again but the tv won't turn on.... HELP!

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Posted on Jan 02, 2017

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SOURCE: HP PL4260N 42 in. HDTV

The problem is with the YSUS board. Also 1 or two fuses (4A) will be blown so you will need to replace those along with the YPPD-J018C Hybrid IC module that is under the large heat-sink. I'm an EE in my day job so I have done this sort of repair from time to time but it can be intimidating unless you have very good soldering skills and a good solder station such as a MetCal. You will need a lot of heat to free the pins before prying this IC up. Failure to do it correctly may lift some of the delicate traces and the new part will not work! When removing the IC I always add leaded solder on these lead-free boards because it flows better. Also adding extra flux and using a Soldapullit Solder Tool works well. You keep adding the solder and sucking it back up...until the pins are relatively clean. Removing the IC still took me about 1/2 hr. to get enough solder sucked up until I finally was able to stick a screwdriver under it and pry it up. Do this gently, on several places on the IC to break it loose. On my board Q1 was blown but since there 4 of these same little semi-conductors, your problem might be Q2, Q3, or Q4? They are easy to spot because they blow apart catastrophically, there was black soot around mine. Also, one of the main reason this part failed is because the white heat sink grease was dry. This means that the heat-sink was not able to adsorb the heat from the board as well anymore and then it just got too hot and failed. So use a good high end thermal grease when you put the new YPPD-J018C part back on the heatsink. Something with silver like Artic Silver will cost about $10.00 a tube. This will make the TV last much longer. The YPPD-J018C part should run you anywhere from $39.95-$49.95 plus shipping. Both Suburban Electronics in MD. and Rich-Tech have the part. Good luck!

Posted on Sep 06, 2010

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SOURCE: HDTV 42 inch Plasma Sanyo model DP 42746

the picture is very dark

Posted on Jan 24, 2008

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SOURCE: Black screen on HP PL4260N 42? Plasma HDTV

The problem is the "Y-SUS" board. It is inside the set on the left side with several aluminum heat sinks, under the left side brace bar. You can order this board from Union Electronics at .Search for part number: TNPA3243AB-PA

It lists for about 115$

Posted on Mar 20, 2009

  • 760 Answers

SOURCE: HP PL4260N 42 in. HDTV Plasma Television. The

You need to replace your lower Y drive board. Looking at the back of the set it is the board on the far left, bottom of the two. Should be about $50.00.

Posted on May 20, 2011

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My HP PL4260N 42 In. HDTV Plasma Television tv doesnt show anything but i can still hear

If your TV is plasma the only part you need to replace or check is y sustain board..You should replace it to work fine again

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Sounds pretty. Try resetting it to factory defaults, if that doesn't work, it could be the main controler board.

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Same thing happened to me. I called HP, and they said that they knew about this issues since about 2006-2007, and had been fixing it for customers up until 6 months ago. Now? You're out of luck. HOWEVER, I'm committed to getting their attention on their forums. Join the fight!

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This HP model is know for many defects. It was sold by HP with a board problem. Contact us to get your TV fixed as a group.

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