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07-31-2014 08:49 AM - edited 07-31-2014 09:06 AM
I have HP L1906 monitor and it must have been years back when I acquired it. I was just browsing the net with 6 superbird browsers simultaneously and the dreaded "OSD" lock appeared and popping out everytime that you cannot use the monitor properly and you get disgusted.
Tried to google the possible solutions and came to this site and tried all suggested advices. I even used multimeter resistance to check if the 3 microswitches are working fine. There is continuity but im reading a resistance not "0" ohms, by a couple of hundreds of ohm and going down ,which means that maybe the 3 microswitches are dirty inside creating the resistance.
I dont have the contact cleaner with me, to clean the microswitches, nor the time to go to electronic shop to buy new microswitches and at the moment need to surf the net. So what I did ,( PLEASE DO NOT DO THIS IF YOU DONT KNOW THE CABLE CONFIGURATIONS), on the mini pc board where the 3 microswitches are mounted, there are two cable connectors,
Black connector- located to the left of the pcb while you are facing the monitor, and it has 8 stranded wires.
White connector- located to the right hand side of the mini pcb, and has 4 stranded wires.
The black connector is where the 3 microswitches are wired, I traced the common wire going to the three micro switches, and then locate the 3 individual output signal cables of the microswitches to the black connector. After that, I just cut the 3 stranded wires , puit tape insulation and fired up the monitor. It works for me and the OSD lock popping screen is gone. I have two hunches, it might be one of the microswitches is faulty, or there is a component failure somewhere in the main board of the monitor.
"AGAIN, PLEASE DO NOT DO THIS , IF YOU ARE NOT QUALIFIED OR YOU DONT KNOW ANYTHING ABOUT ELECTRONIC CIRCUITS"
PS. I will buy a contact cleaner to clean the microswitches, and will connect the 3 control cables I cut, and will give feedback on this post later.
10-27-2014 12:59 AM
Same problem with osd lockout. I tried all the solutions I found in this forum. It kept coming back.
Then I went to Display Properties/Settings and moved my screen resolution to the far right (highest size).
It never came back again.
11-09-2014 11:31 AM
Is there any software solution to this where we can disable the message, I have tried all of the "power off and power on " do this for 30 seconds nonesense. unfortunatly it seems for me atleast to be every button is going haywire because the menu will pop up and go into say contrast and then alter the settings. I know nothing is obstructing it and I've cleaned the buttons.
I was just wondering has anyone found a fix other than "buy a new one" or "open the moniter up" unfortunatly i don't have the tools for that. Isn't it possible to disable it with a software application?
01-21-2015 04:01 AM
I had the Same problem with my monitor and I used contact cleaner, cause those contact wasn't really clean.
Taking the monitor apart wasn't that hard. First you take out the foot of the monitor(3 screws). You take a flat screw driver and put it between the bazel of youre monitor. PUT IT FAR AS YOU CAN SO YOU WON"T DAMAGE YOURE SCREEN!!!
Make sure it's a big flat screw driver and twist your screwdriver. twisting is best solution. deconnect youre volume button cable and take those 2 plastic of it. Clean it with contact spray and wait for few houres so it wil dry out.
After cleaning my problem was gone