Re: Universal Backlight Inverter?

I am looking for step down converters on ebay, and found the following links:

[url]http://cgi.ebay.com/High-Efficiency-Step-Down-Adjustable-DC-Power-Module-4A-/270675796876[/url] (Up to 4A with heatsink)
[url]http://cgi.ebay.com/ULTRA-HIGH-Efficiency-DC-DC-power-supply-module-8A-/270702265079[/url] (up to 8A)Re: Universal Backlight Inverter?<br...75796876[/url]

Re: Universal Backlight Inverter?

That it ofcourse another option, but requires making a hole in the back of my screen. Not the most elegant solution I was kinda hoping to find a simple buck converter or any other simple/cheap device that does what I want.

Back to my situation: unfortunately I do not have the schematics for the powerboard to determine whether the 12V line is enough to power both the logic and inverter board. This would ofcourse be the most optimal solution in my case. Perhaps there is an expert here that can shed more light on this matter?

Re: Universal Backlight Inverter?

A few days ago I was wondering the same thing about using a universal inverter (See another thread). The inverter input voltage is 20 volt, so I will need to downregulate it.

I found a linear regulator 78S12 that does what I want (and is cheap), but it is designed for 2 amps max. According to what the powerboard reads (see photo below), 2A will be enough. Or am I misinterpreting this?

It reads:
12V/2.4A
20/1.8A (Not clear from the picture)

A second option is to hook the inverter directly...

Re: Using 6CCFL universal inverter



Thanks for the help I'm relatively new to this.

The electric current taken by the lamp is 6.0mA. I was under the impression that all backlights work with the same voltage, and therefore inverters are interchangable. Is this correct?

There is a separate 12volt line going to the logic board, so i could use that one but i'm worried about the extra load. The 12V line can be loaded up to 2.4A, the 20V line up to 1.8A.



Thanks, I will send them an email, and report back...

Re: Inverter Belinea 102035W doesn't work after replacing caps

On a first glance the U3,4,5,6,7 transistors seem to be ok. However, the F1 fuse seems to have blown now, measuring infinite resistance.

I will order new low-esr caps. With what should I replace the fuse? The only marking on it is "TP".

Re: Inverter Belinea 102035W doesn't work after replacing caps



Thanks for the reply!

The guy in the store insured me those were the correct caps.. I will try to obtain and replace them with low-esr caps. Is there a chance damage has been done?

[SIZE="1"]And yes I know the leads haven't been trimmed yet Shouldn't matter for testing purposes though[/SIZE]Re: Inverter Belinea 102035W doesn't work after replacing caps



Thanks for the reply!

The guy in the store insured me those...

I propably screwed up an inverter, see this thread: [url]https://www.badcaps.net/forum/showthread.php?t=14176[/url]

Therefore I perhaps want to replace the inverter with a board similar as shown here: [url]http://www.lcdparts.net/U6_3D.aspx[/url]
(Cheaper: [url]http://cgi.ebay.com/PC-LCD-MONITOR-SCREEN-CCFL-6-lamps-universal-inverter-/320682588403[/url])

I checked the on/off pin on the broken inverter board (2.9volt) so I think this should work. Input voltage is 20volt, but the new inverter is specified for 12volt. Will I need a resistor or something for this?...

I have two Belinea 102035W 20.1inch screens with bad caps. A week ago I noticed the caps on the inverter boards were bad, just like the guy in this thread: [url]https://www.badcaps.net/forum/showthread.php?t=13061[/url] I replaced the caps, and voila: it worked perfectly.

However, the second screen didn't work after replacing all the caps. I removed the inverter board from the working screen and voila: image.

Obviously something besides the caps are bad in the inverter board, however I can't seem to locate the problem. Did I perhaps heat the board too long, or are...