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Thread ID: 98857	2009-04-10 08:17:00	Electronics question: Parallel backlight inverters	george12 (7)	PC World Chat

Post ID	Timestamp	Content	User
763804	2009-04-10 11:52:00	its hard to tell, but the tubes should be fine if a little overdriven its hard to blow cold cathode tubes with too much voltage, the high voltage is mainly to strike the arc and the lamp pulls the voltage down to a few hundred volts and the inverters cant supply more than what is put into them so most flouro tubes should be fine with whatever is applied to the terminals So you're saying I can get away with no capacitor there at all?	george12 (7)
763805	2009-04-10 14:08:00	So you're saying I can get away with no capacitor there at all? yes but be careful about it you risk blowing the inverter or its fuse maybe earlier than usual, but if the inverter draws less than 0.4 - 1 amp it should be fine put a capacitor in there that gives sufficient brightness while not drawing too much current	williamF (115)
763806	2009-04-10 23:55:00	The inverters aren't repairable. In all of them a surface mount chip is burnt out. The CCFL tubes are fine though. Anything is repairable, given the right information and tools	Agent_24 (57)
763807	2009-04-11 12:17:00	yes but be careful about it you risk blowing the inverter or its fuse maybe earlier than usual, but if the inverter draws less than 0.4 - 1 amp it should be fine put a capacitor in there that gives sufficient brightness while not drawing too much current It draws 1 amp per tube with no capacitor. I'd be nervous. The transistors are rated to 1A, but the transformer I'm not sure about. Agent_24, you are right indeed :). I should have said I haven't got the knowledge OR equipment to replace whatever SMD IC was blown :D. Also, these things are failing like crazy so it would probably just happen again.	george12 (7)
763808	2009-04-11 12:22:00	Anything is repairable, given the right information and tools How much to get King Tut' on his feet again?	R2x1 (4628)
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