Re: Westinghouse L2410NM 24" LCD power goes on and off, blue light flickers

I still have the problem in one of my two affected monitors. The problem turned out to not be the capacitors, but the HDCP interface between the monitor and the video card. The problem lies in a chip on the monitor's mainboard. The problem is still unresolved, but I have since bought new monitors to replace those aging monitors.

Re: Westinghouse L2410NM 24" LCD power goes on and off, blue light flickers

Upon further research, if your problem with your Westinghouse occurs [B][I]ONLY[/I][/B] on your HDMI input, you probably have HDCP handshake issues. Apparently these particular LCDs are notorious for the problem. I have 2 of these monitors and only one of them actually had bad capacitors. The other has HDCP handshake issues because when using the VGA input, I see no flicker whatsoever. This is unfortunately a software issue and it might not be able to be fixed by component replacement.

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Re: Westinghouse L2410NM 24" LCD power goes on and off, blue light flickers

Without the backing on the monitor, I still get the same amount of flicker so it's not a heat issue for me. I'm beginning to think that the 1000uF cap near the wiring harnesses is the culprit. It's not bulging in the center like you would normally see, but it appears to be bulging around the edges ever so slightly. I'm not sure if you can tell in the picture, but in person the top is not flat like the rest of the caps.

In regards to JoseJX's monitor, is it possible that there is some...

Re: Westinghouse L2410NM 24" LCD power goes on and off, blue light flickers

On my board the fuses are also intact. The PWM you mentioned is P/N 4419 BA6116 and it also appears to be an Alpha Omega Semiconductor chip. The solder joints on the Power Supply board look good. I just cleaned up the residual flux. As far as the wiring harness is concerned, I wouldn't have the slightest clue where to begin. When I get a chance I'll just take readings on all of them in sequence.

Re: Westinghouse L2410NM 24" LCD power goes on and off, blue light flickers



Delivered...

Re: Westinghouse L2410NM 24" LCD power goes on and off, blue light flickers



My apologies. The backlight turns on and off intermittently like JoseJX described in his post. I can hear a faint buzzing, but none of the caps appear bulging and there's no change to the sound that I can hear when the backlight turns off and back on....

Re: Westinghouse L2410NM 24" LCD power goes on and off, blue light flickers

I'm having the exact same issue with my Westinghouse. It also has the same model power supply as JoseJX. I've included a picture of the board with one of the heatsinks removed. I don't have access to my soldering station at the moment and I'm not about to break the other one off....

Re: New Members - please post your introductions here

Hello everyone, I'm Nathan, I'm 21, and I'm in the US Navy. I found this site while looking for tips on repairing a flickering Westinghouse 24" monitor. I have extensive training and experience in component level repair thanks to the Navy so hopefully I'll be of some use here.