Power modules (called IPMs) under the rectangular heat sinks; there are two on each board. Note that even though chances are good that not all four modules will be defective - they rarely go bad all at the same time - we will still replace all four. They literally wear out over time and even though they don't go bad at the same time, whichever one did not burn is pretty close to burning as well. Think of them as car tires which are so worn you can see the treads until eventually one bursts.
Well you know the others aren't too far from doing the same. TV models that use those boards. 1 Sustain boards wear out, very much like car tires. Look at some pictures at our blog to see how heat affects the board and power components.
2 All of the above boards have a life time of about 1500 to 2500 hours or so we estimate. Then they inevitably burn out. 3 99% of all board failures are due to one or both of the large power components (the ICs under the large heatsinks). 4 40% of all boards we service also have other components burned as a result of the failure. 5 A properly serviced board is nearly as good as a brand new one and by all means better than a used and working one.The simple reason of that is that the power modules are literally like car tires - they wear out until one or both fail. The boards that you will receive have most certainly been tested and are guaranteed to work. If it fails upon connecting then the problem is elsewhere - look at your power board (Va / Vs) and your YSUS buffers!
As such, we reserve the right to cancel orders from buyers with less than 10 positive feedbacks. The item "LG 6871QYH039B & 6871QZH044B YSUS AND ZSUS BOARD REPAIR SERVICE" is in sale since Wednesday, May 12, 2010.
This item is in the category "Specialty Services\Restoration & Repair\Electronics". The seller is "coppelltvrepair" and is located in Coppell, Texas.
This item can be shipped to United States.