Turned on the system today, and the LCD remains black, even though the power light is on, and idicates a signal from the PC. Tried on another source, and no source, and result is same: aparently dead LCD. Repairable? Cornea Systems seems to be out of business; where are parts available? I'm in Colorado.
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Guest, You will need to "sub-in" a known-good monitor to prove your pc is working ok! If pc is ok, then plug-in bad lcd monitor and check ( test ) it with aid of a bright flashlight to see if you can see a very faint image of the WIN-desktop being displayed on the now "black" LCD panel. Every owner of "cold-cathode-fluorescent-lamp back-lit lcd monitors should know the "flashlight test" and understand what the results of this very basic test mean. Do some reading in my old (louie12fix) profile to learn how to do test. Hint: The very first thing I would investigate inside the unit would be the unit's "switch-mode-AC to DC-power-supply/ccfl electronic ballast circuit for the top two causes of power supply going into "partial or full" shutdown mode, trying to SAVE itself from a nonrecoverable catastrophic failure. e.g. sparks,smoke, fire!! 12fixlouie
mike_garzan, Your monitor will need some work done on it!! Do you know the "flashlight trick" that every owner of an LCD monitor with "cold cathode-fluorescent-lamps" should know how to do when the BLACK screen of death makes it presence known? Do this test first! It is a very easy test to do. 1. With a KNOWN GOOD pc fully booted to the WIN-desktop showing on a GOOD Monitor have a friend tap the CTRL key on the keyboard every 30 seconds or move the mouse to ensure that the pc won't go into sleep mode. 2. Power off the good monitor and disconnect it from the pc. Now reconnect the TTX9151 to the pc and wall outlet power. 3. Then and only then turn on the monitor and make note of what happens. Did you see or not see the WIN-desktop appear?
4. Now for the flashlight test. Even though the LCD panel appears BLACK, shine a bright flashlight about 1" from the screen's lower left corner and make note if you can see the Windows START icon even though the screen appears to be BLACK. 5. Turn off TTX9151 or yank the plug from wall outlet, and disconnect from pc. TEST IS DONE. Reconnect good monitor to pc to get back online. The test was to evaluate the current status of the "switch-mode-power-supply" and the CCFL inverter circuit DC source. If you could SEE something on the BLACK screen then you know that half of the SMPS is working and sourcing voltage (+5 or +3.3v) to power the vga/lcd interface board! It also means that the SMPS is not in FULL SHUTDOWN mode and only has a problem sourcing voltage(+12v to +18v) to the CCFL inverter circuit which generates 800v to 1200v ac to light-up the CCFL's that are hung across the rear of your LCD panel to produce the WHITE LIGHT needed to see what is on the screen. Now, if you didn't see the WIN-desktop, then the SMPS is probably in complete SHUTDOWN mode trying to save itself from a CATASTROPHIC, NONRECOVERABLE failure! (eg. smoke and fire) Put the TTX9151 in a safe place and get back to me with results of the TEST. lmistyrel and on aim.com or do a comment to your original post above on fixya and I'll give you advice as to what you need to do about getting it repaired or other actions/options you as a consumer/user of LCD displays have open to you. Bye for now. 12fixlouie
It could be that the resolution settings that you had with the old monitor are not compatible with the new monitor. Try hooking up your old monitor and either lowering or highering the resolution and see if that corrects the problem. Can you give me the model number off the new monitor so I can further look into the compatibility of the video card and the monitor.
Assuming you've already checked your driver and system settings, tried a different monitor, and checked the cable and connector pins, this would almost certainly be a problem with the power or signal circuit board inside the monitor.