Question about Elo 15" Touch Monitor

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I got a ELO 1524L LCD touch monitor. The back

I got a ELO 1524L LCD touch monitor. The back light doesn't come one anymore. I found the backlight is still good. I tested it with another lcd monitor and the backlight comes one. I'm not sure if it's the power source going to the inverter or if it's the inverter itselft that's bad. I do get voltage readings going to the inverter. There are six wires. Two wires get 15v and the rest don't have anything or like .8v. Can't find the inverter for this model. Is there a way to use another inverter since these backlights are able to power up with different inverters?

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You should have 2 wires for 12~15 power going in, which you already indentified, 2 more wires should be for ground return, you can check for them by using Ohm meter between the chassis and probe the wire for less then one Ohm resistance. The other two wires, 1 wire will be for Dimming control (usually 0 = dimmed, 5vdc = full brightness), 1 wire will be for BACKLIGHT ON/OFF (0v= OFF, 4~5VDC = ON) control.
Dose the fuse on the inverter board check out OK? You can use other inveter board as long as the lamp connectors are the same and you just have to match the input signal pin. I have done many.
http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague
See example of the fuse on the inverter board.


I got a ELO 1524L LCD touch monitor.  The back - 3209760.jpg

Posted on Jul 11, 2010

  • Ter Xiong Jul 12, 2010

    Does all coloured wires represent the same thing for these inverters? I see those are the same colours like mine. I did check the fuse and it doesn't check out good. If I jump the connections manually, the back light will come on. Is it ok to just change the fuse and it'll be ok? I understand that if a fuse blows, something caused it to blow so that could mean that there still is a problem. I ordered some fuses from mouser.com. They are smd fuses. I'll solder them in test the monitor by leaving it on for a like a day or something and see if the fuse blows again.

  • Bud Martin
    Bud Martin Jul 12, 2010

    No the color of the wires are not standard, some of these wrining are real bad, usually Black wil be for ground (DC), and RED is for B , but I found that they do not stick to typical color code for wiring.
    Yes, the fuse will blow due to over current, or just by the surges, or it just failed due to stress during turn on curent surge. I usually replace it with axial lead PICO fuse (by LITTLEFUSE) from MOUSER., then I will burn in the monior for about a week, I will turn it on and off a couple times a day to see if the turn on surge will blow the fuse.

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I have the same issue with a 1515L Monitor. It comes on for a split second and goes off? or picture goes away. Picture looks fine at all resolutions and touch screen is working also.


jcleary916, You or qualified electronics technician will need to find out why "cold-cathode-fluorescent-lamps" fail to sustain output of white light that enables you to see what is on the LCD panel. CCFL inverter supply probably needs work on it. Do some reading in my and other fixya lcd monitor tech'e profiles. You will be amazed that so many other owners of ALL brands of CCFL back-lit monitors have YOUR exact same symptom as your's does. And then think about all the other owners who don't find their way to fixya for an answer!!! Keep in touch by doing another comment to this one after you do some reading. Then let me know what you are willing to do about your BLACK or BLANK n BLACK CCFL back-lit LCD monitor and how old it is!!! 12fixlouie

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