I am a service engineer - I believe the Tatung L50 monitor I have has an internal power problem (no display at all, and no backlight).
There appears to be no easy way to open it up - Aside from four screwtwist holes at the bottom to (apparently) remove the front casing.
From looking at it, there appears no way at all to remove the stand from the back of the unit.
Could someone with knowledge of this monitor tell me how I can open it up, please?
It is not initially obvious how to access this insides of the monitor
Unusually, access is only available through the front of the screen. The stand cannot be removed on this model.
You need to pry a screw driver (or two) through the four holes located at the rear base of the monitor and remove the front panel surround. The LCD panel and all electronics can be lifted out after removing four screws.
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Please verify that your monitor is connected to AC power and that the power switch is on. Also verify that that the data cable from the monitor is securly plugged into the 15 pin female connector on the back of your PC.
If you still have no display, you can isolate the problem to either being internal to your PC or the monitor itself by connecting a known good monitor to your PC in place of your existing one.
If you stiil have no display, then the problem is internal to your PC and you need the services of a PC technician to further isolate the problem.
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check the monitor to computer cord, sounds like it might be loose or disconnected. swap another monitor in and go to display properties to see if the tatung is a 2nd monitor. using the replacement monitor redownload the drivers and reinstall. turn off and hook the tatung back and it should recognize it
It sounds like your resolution or refresh rate is out of reach for your screen.
Restart your computer (even if it will be manually unplugging the power cable)
If you have no display while your computer starts up; you might have a hardware failure. Swapping your screen out, or plugging it into another computer (that works) will confirm if this is the issue.
If you can see the computer starting up you can press F8 (on your keyboard) continuously just before Windows can start.
Select "Safe mode" so that you will have the basics of screen settings.
Now you can go to control panel, display and click on the Settings Tab at the top. Change your settings to a rather default "1024x768" resolution and change your referesh rate to nothing more than 75hz under the advanced icon.
Definitely Power Supply Board. Check carefully for open 1/8 watt metal film resistors. They wont show signs of overheating but they can be open anyway. I've never been able to find a print either. Once you do find open resistors make sure you measure for shorted components in the associated circuit.
I had the same problem you hear the click but it stays orange which is standby mode never went to red which is on, I also smelled a bit of a burning electrical smell, so I took off the back case and watched the main board sparking and smoking right in front of me, my power supply was fine, be careful before you order a new one. The trouble with mine is that's it's about 99.9% impossible to find a part for it.