Badcaps Forums - View Single Post - A guide on how to troubleshoot 2 seconds to black

_MsG_ · 01-21-2018, 01:51 PM

Don't wanna hijack anything here in the topic, but I'm wondering how likely it is to have a bad high voltage cap. I have a topic here: https://www.badcaps.net/forum/showthread.php?t=66726

I'ts a bout a LG monitor with CCFL backlights, and the backlight goes off after ~ 3 seconds, while the image and everything stays perfectly on (of course only visible with a flashlight). I already replaced the regular caps, but it didn't change anything. So I was thinking about replacing the big capacitor (120µF 450V). However in the Cap kits you can buy for monitors I never see the big capacitor being in the kit, nor did I see anything here in the troubleshoot topic mentioning the big cap.

Is this thing likely to fail, or is that very rarely the case?

01-21-2018, 01:51 PM	#67
_MsG_ New Member Join Date: Dec 2017 City & State: Groningen My Country: Nederland I'm a: Knowledge Seeker Posts: 5	Re: A guide on how to troubleshoot 2 seconds to black Don't wanna hijack anything here in the topic, but I'm wondering how likely it is to have a bad high voltage cap. I have a topic here: https://www.badcaps.net/forum/showthread.php?t=66726 I'ts a bout a LG monitor with CCFL backlights, and the backlight goes off after ~ 3 seconds, while the image and everything stays perfectly on (of course only visible with a flashlight). I already replaced the regular caps, but it didn't change anything. So I was thinking about replacing the big capacitor (120µF 450V). However in the Cap kits you can buy for monitors I never see the big capacitor being in the kit, nor did I see anything here in the troubleshoot topic mentioning the big cap. Is this thing likely to fail, or is that very rarely the case?