My monitor (Hyundai Imagequest Q17, 2 years old) remains black after I turn it on. The green power light is showing. And if I look very closely at the monitor, I can see whatever is on the screen, but all is dark.
Could it be possible that it is the bulb which died ? What over possibility have I ?
Thanks for the help
I can verify after opening my monitor up as well that the solution posted by W_Steenhuis does in fact work. The power cord itself didn't have an adapter, but the power "adapter" was in the base of the monitor itself. The big circuit on that was where I found a diode and resister side by side that were badly burnt. I basically put some solder down each of the connections to the board to broaden the overall connection of each just to make sure that there were no gaps. Now my monitor works :)
Thanks again, W_Steenhuis.
I had the same problem some time ago.
After dismateling the power-supply unit it apeared that there was en crack in a solderjoint at one of the power transistors. This transistor has 3 legs (TO220 I believe), from which the middle leg had a solder crack, probebly due to thermal stress. Just resolder and it worked again....
Its worth a try I think.
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Yopu can adjust the brightness of the monitor from the avaialbe panel buttons Alternatively you can do so from the Operating Sytem brightness control which depends on the platform you are using. If its windows you can navigate to control panel and the power settings and adjust the brightness by sliding the slide bar as desired.
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums Post back what you see inside so we can guide you further and it will help out other people in the future also. http://en.wikipedia.org/wiki/Capacitor_plague http://www.badcaps.net
bwpvemail, The units "switch-mode-power-supply" may be in shutdown mode. A tech will need to evaluate. Check to see if Hyundai has a refurbished swapout+cash program?? It's that or trade in for new wide screen, so the tech in the store "back-room" can possibly put $8 in new filter capacitors in your unit and with a little luck will have a 17" L70s for 1-2 more years use. 12fixlouie
It sounds like you have a monitor with a common problem. After a few years some LCD monitors will
blow a power supply. The problem is caused by parts called capacitors
overheating in the confined space of he monitor. If you are good at electronics repair/soldering you can usually fix he problem. Check out a few pictures on my web site www.ccl-la.com/badcaps.htm You
can take the back cover off your monitor and look for the bad
parts,replace any that look like the pictures and your monitor should
work fine. The capacitors do need to be installed with the correct + and
-connections, note the stripe on the old one and insert the new one
the same way. If you don't want to try the repair yourself we offer a repair
service for $45 plus shipping. If your problem is not the capacitors
then it would be the backlights and that is much more difficult to
I hope this helps, if so please rate my solution.
Corporate Computer www.ccl-la.com
Over 21 years of computer and printer support/repair
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