Question about Mag Innovision 19" LCD Flat-Panel Monitor LT916S
Hello, I can see the images when I turn on the lamp in my room, not clearly but some dull images...and can tell what's on the screen. So I assume the problem is with the lamp inside the screen. You told on the post earlier to fix about the screen going blank on this flat monitor but you didn't specify how to replace the lamp inside. Like How do I do it, if I want to do it myself? My email is: email@example.com
Thanks in advance!
This is a common problem due to capacitors in the inverter circuit going bad. The inverter provides the voltage to light the backlight, so the lamp is usually not the problem.
If you open the case on the monitor (sometimes that's a challenge all by itself) and follow the wires from the backlight to the circuit board, you'll find the inverter circuit. There are normally a couple of transformers (they may be small square cases or round coils of wire on black or gray forms), some transistors, and the infamous capacitors. The caps are small cylinders with printed values on them, like 4.7uf, and also a voltage rating. Most of these are values you can find at Radio Shack, so if you or someone you know has soldering experience, you can try changing them. Stick with the original capacitance value (the uf number), but try to get a slightly higher voltage rating if you can. The voltage ratings come in standard values, like 16 volts, 25 volts, etc. The higher voltage parts will be a little bigger but should still fit. They go bad because the rating wasn't high enough to begin with. But it saves the manufacturer a little money on each unit. Make sure you observe the polarity of the capacitor (plus and minus, with some kind of marking on the circuit board to show you) when you put in the new ones.
Posted on Dec 06, 2008
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Posted on Jan 02, 2017
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