Question about Samsung HP-T4254 42 in. Plasma Television
I have a 3 1/2 year old 40" Samsung LCD w/ only 1 HDMI jack. It is now wobbly and partially seperated from the circuit board. How difficult is this to fix? And does it need professional attention or can I do it?
SOURCE: Loose HDMI Connection
Dont use the HDMI connection OR replace the main board. Its directly soldered to the main board. The back should come off IF you have removed ALL the screws and the little screws things that hold on the VGA connections etc. There are also some obscure screws holdin the back on.
Posted on Jul 03, 2008
Mine was doing that then it quit even turning on so I replaced the 4 Capacitors today on the power supply board that had bulged up on the top 3 had split open they where on the top right corner of the board where the ribbon jumps from the power board to the main board with ones from Jameco Part Number 606521 they worked perfect but make sure you put them in with the correct polarity easy to do just keep an eye on it. Very simple repair and took me about 30 min to take itapart solder on the new ones and put it back together all for under $10.
Posted on Jul 09, 2009
SOURCE: no picture on Samsung LCD 40" TV
Nobody could guess that! it depends on where you are in the world. For Instance I am in australia network.
Call outs generally run to $AUD90 and $90 and hour Min 1 hour.
You do not say whethyer the power light lights up so its again guesswork.
If the power light IS lit then there is power from the wall to the primary coil of the power transformer. I would then suspect either the secondary transformer has failed, or that a fuse after the secondary and pre picture/sound module has blown. The power supply ( cant by bits) costs around $200. The fuse 0.60
add to the callout fees and you get some idea of the cost can cost half the value if a $1000 TV The plasma screen hasnt gone so that's always a plus and its rare for the video board and sound module to fail simultaneously. So my bet is the poer supply side and fuse
Posted on Aug 13, 2009
Testimonial: "Thanks I appreciate all the info and help!"
SOURCE: Samsung LCD 40 inch LNT4061
It sounds like you have a Power Supply Board problem. The PSB is the center Board (towards left) after you remove the back off the TV. Remove Board from TV with the 6-7 screws. Replace capacitors CM852 & CM853; 2200ufd 25volts.
Thanks for using FIXYA, big IRISH.
Posted on Jan 02, 2010
The problem is 4 capacitors on the power supply board. Just had mine done under warranty. They (Sears) replaced the whole power board but you can get larger capacitors and just replace those for alot cheaper if not under warranty.
Posted on Jan 30, 2010
when I turn off and then Turn on after 10 minutes the TV notwork(by using remote or touch button). I try to disconnect power supply andthen reconnect and waiting a couple of minutes and turn on but no work (nosound and black desktop) .I repeat this procedure many times so some timework and sometimes not work. please help me to solve this problem
Posted on Aug 28, 2011
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