713N Samsung LCD Restore with SE7889-Lf ic Problem - Owner's Guide
This Samsung 713N LCD monitor got here in with no show symptom and no power. In other words, when you switched 'on' you might see the facility LED lights up (no display) after which for couples of seconds the power led gentle goes off. After I removed the sign cable and switched 'on', now I may see the check signal cable OSD appeared at the screen. This proved that the inverter board, lamp and energy supply is working. Once more, I plugged in the signal cable, the show and energy LED gentle went off.
After opened up the quilt, I verify the on/off signal from the mainboard to the inverter board. With sign cable in, there was no on/off sign to the inverter board however when the sign cable was disconnected, you would see clearly out of your meter there's a on/off sign going into the inverter board thus the show appeared with the test signal OSD current at the display. From this check, it is rather apparent is the principle board problem.
To substantiate whether is the primary board downside, it's a must to use an identical Samsung 713N model to confirm it. True enough, after substitution with a known good board, the monitor is okay. So now we are able to verify is the mainboard faulty. The actual downside now's at the place we will discover this board or the suspected half number SE7889-LF ic for replacement? Checking the components surrounding the SE7889 ic yield no result.
As talked about in earlier articles, to troubleshoot LCD monitor is simple but to get the part is a bit bit difficult. Samsung don't sell you the mainboard, for those who send to them for restore, they are going to charge a very high worth which is not worth to repair.
As I am writing this text, I still couldn't find the suspected ic, but when I found it I'll allow you to all know. Samsung 510bn lcd monitor even have this kind of downside which is the mainboard spoilt.
Though on this article I couldn't pinpoint to you the precise defective component, a minimum of you would use my process to verify which board is giving problem. In different phrases, whether or not you might be troubleshooting the Samsung 713N LCD monitor or different model, the testing method is the same.
713N Samsung LCD Restore with SE7889-Lf ic Problem
This Samsung 713N LCD monitor got here in with no show symptom and no power. In other words, when you switched 'on' you might see the facility LED lights up (no display) after which for couples of seconds the power led gentle goes off. After I removed the sign cable and switched 'on', now I may see the check signal cable OSD appeared at the screen. This proved that the inverter board, lamp and energy supply is working. Once more, I plugged in the signal cable, the show and energy LED gentle went off.
After opened up the quilt, I verify the on/off signal from the mainboard to the inverter board. With sign cable in, there was no on/off sign to the inverter board however when the sign cable was disconnected, you would see clearly out of your meter there's a on/off sign going into the inverter board thus the show appeared with the test signal OSD current at the display. From this check, it is rather apparent is the principle board problem.
To substantiate whether is the primary board downside, it's a must to use an identical Samsung 713N model to confirm it. True enough, after substitution with a known good board, the monitor is okay. So now we are able to verify is the mainboard faulty. The actual downside now's at the place we will discover this board or the suspected half number SE7889-LF ic for replacement? Checking the components surrounding the SE7889 ic yield no result.
As talked about in earlier articles, to troubleshoot LCD monitor is simple but to get the part is a bit bit difficult. Samsung don't sell you the mainboard, for those who send to them for restore, they are going to charge a very high worth which is not worth to repair.
As I am writing this text, I still couldn't find the suspected ic, but when I found it I'll allow you to all know. Samsung 510bn lcd monitor even have this kind of downside which is the mainboard spoilt.
Though on this article I couldn't pinpoint to you the precise defective component, a minimum of you would use my process to verify which board is giving problem. In different phrases, whether or not you might be troubleshooting the Samsung 713N LCD monitor or different model, the testing method is the same.
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