Question about Hyundai ImageQuest L70S 17" LCD Monitor
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Posted on Jan 02, 2017
Hello mallik, The LCD monitor is actually a active matrix of small transistors (3 for each pixel). They have one native resolution, a FIXED one for example you monitor has 1024 x 768 pixels. This results in 786432 pixels displayed on the screen. Because each pixel is controlled by 3 transistors there will be 2359296 transistors controlling your entire screen. This is a fix number. You can't raise the resolution to 1280 x 1024 because this will require as you can see now... a lot more transistors on the same surface. All you can do is to lower the resolution, in this case 4 pixels (12 transistors) form a larger pixel acording to that lower resolution. The image can look blurry in these situations. THe bottom ideea is that a LCD pannel (more corectly said, TFT (thin transistor film) pannel, has one optimum resolution, it's native one. The higher the better, when choosing one to buy, but you can't raise the resolution over that. You can just lower it. It works different then the normal conventional CRT monitors. Sorry for my bad english as I live in a non english-speaking country. Also if you have anymore questions please post a comment.
Posted on Mar 25, 2007
hello, mine lcd it is extinguished continually. I have tried to open it and seems us or a problem on a condenser dell' inverter. Someone you would know dirmi where to find the outline in order to understand like repairing it?
Posted on Jan 31, 2009
ontherhodes5, Your monitor will probably need servicing for one or both power supplys in the unit. Yes, If you can get a new oem Switch-mode-power-supply/inverter board you might get it working. I suspect that it (smps) can't supply the voltages needed by the logic-interface board- therefore no digital data can be processed for display on the screen, which should be white-bright but now only gray. (dim) because the 1000v ac from inverter circuit is also missing 10to40% of it's output. Your best bet will be to find out if Hundai can do a repair/swapout. You send yours+$40 to $90 and they send you a Refurbished same model with new CCF tubes, Inverter board, smps board. It seems that sooner or later these lcd ccf (cold cathode fluorescent tube backlights) will need servicing. Don't feel bad about this monitor. There are about, (guess only) 2500 more of all makes and models with similar power supply problems out there. To see whats inside a lcd search YOUTUBE for vids of servicing or repair of lcd screens or similar.. also www badcaps.net ??? or lcdrepair.us or visit electronicrepairguide.com run by a Jestine Yong. Ignore the sales pitch and just look fyi. hope this was of some help. drop me a note if possible. I'm louie12fix on fixya or lmistyrel@ aol.com BYE
Posted on Mar 30, 2009
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