Recently my Benq g2400w started exhibiting the "2 second to black" symptom. When I turn it on, the display will work fine for about 2 seconds before turning off to black.
I can switch inputs to VGA, DVI, or HDMI, but the symptom persists.
I suspected perhaps it was bad caps, but they all look fine from an external view. I also used my cheap multimeter to see if they charged up, and they do. I also tested all the diodes I could find, and they read approximately right values 0.6-0.8 volts
I looked at all the solder joints, and even reflowed a few that looked potentially weak, but it hasn't helped.
I checked the fuse, it reads .3 ohms.
I did see this thread,
https://www.badcaps.net/forum/showthread.php?t=10419
but it wasn't specific to my monitor's power supply. Perhaps you could help point out some components I should look at.
Here's the full quality jpegs, because this site resized and shrank them:
http://ordorica.org/system/misc/benq...ly%20front.JPG
http://ordorica.org/system/misc/benq...ply%20back.JPG
Any help would be appreciated. I do like this monitor and it would be a shame to throw it away because of this. Unfortunately, all I have is a basic soldering iron and multi-meter.
I can switch inputs to VGA, DVI, or HDMI, but the symptom persists.
I suspected perhaps it was bad caps, but they all look fine from an external view. I also used my cheap multimeter to see if they charged up, and they do. I also tested all the diodes I could find, and they read approximately right values 0.6-0.8 volts
I looked at all the solder joints, and even reflowed a few that looked potentially weak, but it hasn't helped.
I checked the fuse, it reads .3 ohms.
I did see this thread,
https://www.badcaps.net/forum/showthread.php?t=10419
but it wasn't specific to my monitor's power supply. Perhaps you could help point out some components I should look at.
Here's the full quality jpegs, because this site resized and shrank them:
http://ordorica.org/system/misc/benq...ly%20front.JPG
http://ordorica.org/system/misc/benq...ply%20back.JPG
Any help would be appreciated. I do like this monitor and it would be a shame to throw it away because of this. Unfortunately, all I have is a basic soldering iron and multi-meter.
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