Two In One High Voltage Transformer
If you repair LCD Monitor you must have come across before the high voltage transformer that is located at the inverter board. Normally to drive the top and the bottom backlights/lamps, LCD Monitor designer usually use either one transformer to drive one or two lamp (top and bottom back light) or two transformers to drive the top two lamps and two transformers to drive the two bottom lamps. These designs are very common and could easily be found in most LCD Monitors.
However, since there are many choices for LCD Monitor designers, some prefer to use one transformer to drive 4 backlights! The transformer that you are seeing in the picture actually have two transformers! One transformer for the two top backlights and one for the the two bottom backlights. So please don’t be mistaken thinking of only one transformer! The most important thing is you must understand the theory of how the LCD Monitor inverter circuit work. Why? Because in the future no matter what kind of inverter designs coming out in the market or what kind of high voltage transformer used, you will still be able to test and repair the unit.