Hello i just installed my chimei 19" lcd to my hard drive and i have connected it all up right it all loads up but when my screen comes on the little button on screen goes from green to red and says no signal input screen stays black why would it be doing this if everythink has been connected

I'm betting on the PS board. Open it up, and look for some blown up caps. Wouldnt be hard to miss

have you try to use headphone or other speaker except on the built-in speaker of your LCD?, if the sound still not working then re-install the sound driver of your motherboard.
Thanks

How old is it? If it still under warranty get it repaired, it sounds like the switch is gone or the energy saving s/w inside is bad and is not detecting when/when not to turn the display on/off.

You need to read your HD digital tuner and see if you can lower the video resolution to the maximum the monitor can handle, right now it is too high for the monitor to display. If the resolution is OK then the problem is in the monitor logic board.
Please post back and leave rating if it helps.
Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

my friend solved my problem for me while i was out thanks june

Sound like your display is having issues with the inverter board. When the power supply detects a short circuit, it turn off by itself. When you try several times, you may be able to "bypass" the circuit protection but the damaged parts still having problems. This issue may be related with the DELL display issues.

The display needs to be fixed by someone with experience in electronics repair.

probably power supply, dac-19m015, 2200uf bad capacitor.

my monitor chimei tco3 is black and will not show sceen

you can set a resolution of 1440*900..
option 1) open device manager,, update the drivers for standard vga card.. locate ur video drivers folder,,(do it manually even if u have it on cd)...


option 2) this one is bit risky.... open add new hardware wizard and add ur correct video adapter, no matter ur standard display adapter is already installed. after you finish, update ur original standard display adapter and this time, it will pick the correct drivers.. now you can remove your dumb display adapter and restar pc .
risk is- be very careful, u dont want to remove your physical adapter by mistake, resulting no video after a restart.

I have the exact same monitor and it is 220v. But seeing as i bought it in Australia that makes sense. If yours was purchased in North America then it is almost definitively 110v. It is likely that it is written on the actual monitor. If in doubt you could always try it with 110v. If that works then theres your answer. If it doesn't then its probably 220v.