20 Most Recent HP PL4260N 42 in. Plasma HDTV - Page 6 Questions & Answers

Simple test: block the sensor for the remote from the tv. If that cures the problem then your remote is defective. If it doesn't then the control processor is unstable and activates commands randomly - hardware defect, it can't be repaired. The only way to fix that is to replace the entire mainboard and that will cost you around $450.

try to check the switch of your tv if their is a close contact switch if their is one try to pull it slightly to loose the close contact.

Call encompass parts distribution , ask for a power supply you should try to get cost availability and frequency of call for replacement.It might be better to have a repair shop check for proper voltages in and out to be sure.

Hi

Thanks for using FixYa. A plasma TV is a very hard working device. It is working harder than any TV that has been built before, and as a result it produces a lot of heat. 75% of technical problems in plasma TV's are caused by overheating problems. You'll need to check the power supply board first for any swollen/bulged capacitors. As power supply board is the hardest working board in a plasma TV, it develops voltage to supply all components, high current + high voltage. All this is only recommended if you have electrical expertise & know how to solder/re-solder components as these units contain high voltages even when switched off. Please accept the solution if the issue is resolved or post a comment for further assistance.

Thanks

Rylee

dwight69,
I just finished repairing my Hp. There is a defect in the YSUS Circuit Board. A refurbished one is $70. and a repair kit is $40 plus shipping
If you are brave enough and know which one to change, go for it: if not get an Authorized Repair person to do it, but be very carefull on what they charge. $70 for the board,and 70 for the work.. 140 plus tax, Anything more than that say NO Thank You

Chances are the buffers are bad. If the TV is under warranty, take it in for service. If it is out of warranty, you may try to order the parts and fix it yourself or take it in for repair. Try unplugging it and leaving it off for a while and then plug it back in and see if you can get the picture to come back on.

Obviously, check all your connections before you do anything. And check your remote and change the AV settings and the input (DVD, AUX1, AUX2, etc). If it still doesn't fix the problem, I'd bet on the buffers.

Hi Deko11
Just repaired my Hp PL4260N.
The Y SUS board can be defective and they cost about 70. plus shipping or a repair kit on Ebay and if you are are replacing the board yourself, it is the board on your left whenthe tv facing down and you are at the bottom of the screeen

your y- sus board is out. you can find them on ebay for 68.00

Check your fuse. If your fuse is blown check and replace shorted bridge rectifier or shorted output transistors. If it is not blown look for puffed up capacitors with leaky fluid dielectric oozing out them please replace them this will solve your problem

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 in it cost about $6.95 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!

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!

Put the TV on a table, screen down with a blanket under it. Just remove the back cover to get at the YSUS Board. It's in the left upper corner.

The board looks like this, I removed the Heat-sink to get at the IC under it. But once you remove it you can send it in for repair.

http://img.photobucket.com/albums/v472/MurphyDawg/Electronic/YSUSBoard.jpg

Hello,

All plasma an LCD ts have boards that control vertical and horizontal output to their respective areas. They are connected to the screen by ribbon cables. If one of these boards fails all together, has a failed chip, a bad connection, or a bad ground somewhere it will result in a black line in the area of that board. A bad ribbon cable connection on the bottom will result in a vertical black bar though the screen. Many times resetting the connection will fix it, if the ribbon cable has been nicked there could be a severed connection. They an sometimes be fixed, but it is a pain. An yes I have done it, but the bar is gone. The same will happen if the chip that outputs to that area opens. The connectors are the first place to look paying close attention to the cable, they are extremely delicate so great care must be taken if you decide to tinker with em, the usually have lift locks that release them, but it is very easy to wreck em.

Good luck.

Try to check the X-SUS board, Y-SUS Board, and the Z-SUS Boards. One of them is not Working. Hope this tips helps your TV problem.

Its probabaly one of the three boards, X-SUS board,Y-SUS board, Z-SUS Board.

This is very likely a problem with the Y SUS board. You can contact this company by phone and they can repair your old board.
http://www.moduslinkptstvboards.com/Default.aspx
This model is notorious for breaking there are a ton of complaints on HP message board.
Thank you and good luck,
Lee

Hi


Thanks for using FixYa. These kinds of issues in plasmas usually occur after 3-4years.A plasma TV is a very hard working device. From what you have described it seems to be an issue with the power supply board which is the board where all the power cords plugs into.It is working harder than any TV that has been built before, and as a result it produces a lot of heat. 75% of technical problems in plasma TV's are caused by overheating problems. You’ll need to check the power supply board first for any swollen/bulged capacitors. As power supply board is the hardest working board in a plasma TV, it develops voltage to supply all components, high current + high voltage. All this is only recommended if you have electrical expertise & know how to solder/re-solder components as these units contain high voltages even when switched off. Please do accept the solution if the issue is resolved or post a comment for further assistance.


Thanks
Rylee

This is somthing where ether your sustain board are effected or your Y board, The issue here is its going to need to be looked at further there is really no way for us to tell you 100 percent witch board is causing thi issue without the back off and running some checks.

Te problem relies in the Y, Sustain boards around $350.00 bucks to have fixed at a shop.

Let me know if you have any questions by pressing the reply to expert, otherwise click the accept button for my efforts. Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620