Re: eMachines Le1938-Need Help



Correct, that is a complete removal of the LCD screen from the main unit....

Re: eMachines Le1938-Need Help

Nothing else happens, the power LED stays on and the screen displays the no signal screen until it briefly returns to displaying the computer's desktop.

Re: eMachines Le1938-Need Help

I am back at it again with this monitor. Upon further investigating, when I unplug the LCD (glass) the power light stays on, no hum, and my computer detects the monitor. Obviously I have just removed the LCD panel from the unit. So technically its recognizing the inverter and logic board only.

Ideas?

Re: eMachines Le1938-Need Help



My philosophy would be, if you want to do it the right way, do it the right way.

Since I am going to replace a potential 7 capacitors, I might as well do all eight of them. I am very interested in prolonging the life of the monitor. If it was a 15" CRT I wouldn't be as worried however, it is a 19" widescreen. Which isn't the best of the best anymore, but it makes me happy.

@PlainBill

Oscilloscope - sure don't.

I am following your words very closely. From your post...

Re: eMachines Le1938-Need Help

PlainBill I appreciate your help in advance.

Now if one of the capacitors or several of them were out together.
Would it cause my screen to display, and not display, display, and not display? It is not losing its power, it is simply losing its power to display. Also when it loses its display ( displays no signal found ) that is when the humm appears. When the screen is displaying, the humm goes away.

Also I have counted 8 capacitors on the board.

220 UF, 35V
47 UF, 25V
1000 UF, 10V
470...

Re: eMachines Le1938-Need Help

All the caps appear to have "Su'scon" written on them. I apologize about the pictures.

Here are the larger pictures.

[URL="http://tinypic.com/r/1eqq0p/7"]Back Side of Board[/URL]

[URL="http://tinypic.com/r/2u9kh20/7"]Front side of Board[/URL]Re: eMachines Le1938-Need Help

All the caps appear to have "Su'scon" written on them. I apologize about the pictures.

Here are the larger pictures.

[URL="http://tinypic.com/r/1eqq0p/7"]Back

Hello everyone my name is Aaron. I am new to these forums and I am seeking some help.

I have common knowledge on circuitry, but I am far from experienced.

What I have is a eMachines Le1938 19" Widescreen LCD monitor. The problem I am having with the monitor is that it will display perfectly, then display no signal detected. The monitor is not powering on and off, it is simply losing signal. There is a pretty stand out hum coming from the inverter. I have disassembled the monitor and have the board out of it. I just have no idea what to look for.

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