Lg e2342t - bn

[RD5184]

Hi everyone,

I have a LG E2342T-BN LCD screen wich is malfunctioning.

1. When switched on, there's an image with the LG logo for about one third of a second, then it blacks out for about one second, then the logo comes back. This loop keeps repeating itself.
Whilst the screen is black, I only see some vague lines shifting when shining a light on it.

2. Earlier, at my friends house, the power button would keep flashing on and off, and the screen would not go on at all. A few months before it still worked perfectly.

3. I checked the input voltage (it has an external transformator to 19V DC), that's OK.

4. I opened it up, everything looks ok, no burn marks etc. I found two capacitors, the big one might be a very little bit bent out.


So my question is, can this be fixed by replacing the capacitors? Since I have very little experience with this, I hope someone here can help me with advice

Thanks in advance,

RD

[Lumberjack777]

Re: Lg e2342t - bn

That's a polymer cap; and it's common for them to look slightly cracked on top. They don't really bulge like an electrolytic capacitor. I have seen them short out before though. You could check for that. That's a newer board, and you might be having troubles with a different component. Maybe the EEPROM. They are getting smaller and smaller and the micro-soldering can be tricky. On those boards I usually just buy a new one from China for about $35 to $40. Unless somebody else has a better reply. I once had the polymer caps shorted on a Dell S series. And I was able to repair it. Good luck!

[RD5184]

Re: Lg e2342t - bn

Thanks for your reply Lumberjack, that's very helpful information.