My son as a medion 32"flat screen tv, whilst on stand by it went bang and as stopped working. I have change the plug fuse as the most obvious scorce but still nothing works. does anyone have a idea to the problem, I am certain it cant be much. the tv is just over 12 months old
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Power supply board is not working. There is usually a fuse on the board that you can change, but you need to know what caused the fuse to blow in the first place. There are many places online that sell replacement boards. It's not difficult to open the back of the TV to get at the boards.
The fault sounds like a invert problem, the inverter supplies high voltage to the CCFL lamp which provides the backlight or a faulty CCFL lamp. If you see a dim image when you look at the LCD screen at a sharp angle then this confirms this diagnostics. For parts, service and DIY info I have use LCD Parts - click on this link to their WEB site :- www.lcdparts.net
I'm not a guru, but your predicament is pretty simple. Depending on your OS (XP 32 bit, XP 64 bit, Vista), the OS will be able to recognize a certain amount of RAM. XP 64 Bit will be able to recognize up to 6GB of RAM. Vista, I have no Idea. 32 Bit, what you're seeing right now.
Sorry for wasting a bit of money on that last stick.
i have some 19 inch medion monitors that have the same problem .. they make a lot of noise and the screen might be jittery/fuzzy ... i found the following:
several capacitors in the power supply (inside the monitor) had their tops buldging .. that shows that internal pressure was high in the caps, usually caused by them being hot and thats caused by high internal leakage .. the caps may eventually blow out the tops (explosion vents) .. the caps are designed to do that instead of becoming a bomb ..
all the bad electrolytic capacitors i have seen so far on these monitors, motherboards and other electronics have been chinese made .. they made millions of bad caps over several years ..
almost all the bad caps had buldged tops but not always .. once in a while i see one thats open but not bulbged .. probably venting elsware ..
i changed the obviously bad caps and the monitors returned to like new performance ..
i dont know about the 17 inch but the 19 inch medion flat pro display is not too hard to take apart .. about 30 screws or so ... speakers have to be unscrewed and you have to be careful not to stress cables that go to the push buttons .. of course you have to know how to solder without bridging paths
I had an issue with this TV too, it suddenly started blinking on and off whilst I was watching TV. I turned it off and on and problem persisted. I then pulled the power cable out from TV whilst it was still switched on and waited a few mins and put it back in. It has been 2 days and the issue hasn't happened again.