Reuse old ttfc backlight driver - Page 1
Forum section: electronics / beginners

author: Markokk888
author_rank: Newbie
timestamp: February 10, 2017, 08:34:15 pm
content: Hello, i'm trying to reuse old laptop screens i attached some high res raw photos basically what i'm trying to do is reuse old ttfc backlight driver board's but i have no knowledge how to connect them directly to a power source i want to make this simple as possible i don't need any brightness adjustments i just want to light that damm thing up to maximum i wonder if anyone can help me with that?.https://1drv.ms/f/s!AhPD9LVw_zFHg-4IgveRijDawIn2-A

author: Cliff Matthews
author_rank: Unknown
timestamp: February 10, 2017, 08:44:52 pm
content: Quote from: Markokk888 on February 10, 2017, 08:34:15 pmThis web site sells the back light inverter boards, but they also have the pinouts and voltages you need. Acer example:http://www.lcdparts.net/InverterDetail3D.aspx?ProductID=2201Take note, CCFL tubes with blackened ends (sputtered) will not last long..

author: Markokk888
author_rank: Newbie
timestamp: February 11, 2017, 09:19:48 am
content: That ccfc is fine i have several ccfc's laying around and i just want to make something out of those.. well anyway i can't find the exact datasheet on this chip :

author: cs.dk
author_rank: Unknown
timestamp: February 11, 2017, 09:55:35 am
content: Quote from: Markokk888 on February 11, 2017, 09:19:48 amThe datasheet should be here;http://www.datasheetlib.com/datasheet/868887/mp1010bef_mps-monolithic-power-systems.html#datasheet

author: tooki
author_rank: Super Contributor
timestamp: February 12, 2017, 10:23:23 am
content: Related question: I've got a bunch of CCFL tubes (about 50cm long) salvaged from a TV that might be cool for lighting projects. What's a cheap way to drive them? All the CCFL drivers I find on eBay are for much shorter tubes.

author: SeanB
author_rank: Super Contributor
timestamp: February 12, 2017, 11:15:16 am
content: Buy a cheap electronic neon transformer, and run a few in series. You will kill them with this long term, but any tube that still has a measure of vacuum will light on this. I have done this with regular tubes, it will not harm the neon transformer, and will light even tubes with a broken electrode, though I did vent a few tubes when the electrode wire inside sputtered back through the glass seal. Amazing just how much of the power can go into the electrode voltage drop, even at 7mA.Otherwise buy a cheap plasma globe and use the transformer output of that to one end of the tube and ground the other end to the board ground.

author: Markokk888
author_rank: Newbie
timestamp: February 12, 2017, 02:32:59 pm
content: That controller i have it's useless and i dont know how to deal with it i dont know how to reuse it.. tried to trace the pinouts tried powering it up afterwards and still nothing.. maybe i something messed up with the enable line or 5v brightness control line idk..

author: james_s
author_rank: Super Contributor
timestamp: February 14, 2017, 01:20:39 am
content: Just buy one of the universal CCFL inverters off ebay for a few bucks, that's easier than spending too much time trying to reverse engineer what you have.