My Set will no longer turn on. I did not have the typical "Popping" Problem, nor have I ever had any Picture Problems. When I try to turn the set on, I hear the normal "Click", but the Red Standby Light does not Cycle to the Green Power-on Light... all I get is the Clicking.
I've Checked my fuses - none are blown. I am getting Green Lights on all of my Boards (x/z sustain boards, main board, etc...), but Set will not Power-up.
Can anyone tell me if this is either the Power Supply Board, or the Main Board? I am going to purchase the Replacement Board, but I do not have the extra money right now to make a mistake and order the wrong Board. So, if anyone out there has experience with this and can tell me if it is the Power Supply or Main Board, I would greatly appreciate it.
I had the same problem with same model TV a year back, they replaced some board (I was not there at home) as I had warranty and after a year same issue popped up again.. Can you please tell me what board replacement worked for you. I don't have warranty anymore.
I have recently had the pop of death and decided to buy a new TV. Before trashing the TV I removed all the boards from the TV and have them available for sale, cheaply. Send me an email if you are interested in purchasing them.
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I own the same set. I had the "pop" happen to me. I decided not to fix the set, but before trashing the TV I removed all the boards and parts that I could. This included the Power Supply Board and the Main Board along with the Y Sus, Z Sus, Y Buffers, Speakers, Cooling Fans and few other things I don't know the name of. I'll sell all these parts $150, cheaper than you will find the Power Supply Board by itself. With all these parts you can fix the set cheaply no matter what ends up being the problem. Let me know if you are interested.
There's an over current fault in the power supply or the Y-sustain convergence board. The loud pop was either a capacitor or pico-fuse breaking from excessive current overload. Sounds like 2 or 3 mosfets have shorted at the gate ends. Plasma TV's always have this problem because they generate too much heat and the components cant take the load conditions. Make your next TV an LCD...
To fix this problem have your local repair shop do it for you.....
Technician just replaced the upper right (from the back) circuit board that conects to the panel. TV now works fine. I bought the display model 8 months ago with extended Circuit City Warranty for $1000 so I can't complain. This was covered entirly by LG/Zenith (nicest Cust. Svc. ever) so we'll wait and see what happens.
Check your input connections, especially the HDMI (if in use). I have found through personal experience that the weight of the cable and any small vibration can be enough to loosen the connection and leave you a blank screen. The manufacturers would have been smarter to have all the inputs face toward the floor at the bottom of the set (like the power cord). Anyone who has mounted their set to the wall will understand what I am saying.
That being said, you may be better off saving your money and buying a new LCD TV. The Zenith sets have proved to be a ticking bomb. If you Google "pop" and "z50px2d" you will read a number of posts on various boards that indicate that the Zenith plasmas have about a 2 year life expectancy before they are in need of some very expensive service. And frequently even after they are serviced are prone to further failure.
Someone pointed out to me not to long ago a valid fact: LCD technology has been around since the pocket calculator and therefore much less prone to unexpected failure than the relatively new plasma technology. I just wish someone had told me that 2 years ago when I ponied up $3000 for my Zenith z50px2d that blew out a few days ago.
This just happened to my Z50 yesterday...10 days after it came back from the repair shop! The first repair was for the "popping" problem where the tv makes a loud pop and the screen goes black. This took 6 weeks to get fixed. For this new problem the repair center is getting hold of LG to find out what to do. I am also calling them because I see this is a major problem that people have been experiencing out of warranty. The first customer service rep told me I was out of luck but I am not accepting that answer. Good luck, we'll both need it.