Question about IBM E74 17" CRT Monitor

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Control panel "Locked"

Whenever I try to access the control panel (by using the buttons on the front of the monitor) it displays the control panel but says "Locked." I cannot access any options at all.

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Re: Control panel "Locked"

E74 - Press and hold the MENU button until it shows UNLOCKED.

Posted on Nov 22, 2006

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AOC monitor 2436vh does not fill the screen using the HDMI connector. There is a 1 inch black border around the window. Controls to stretch the display are locked out (not accessible) when using that...

The "Best Solution" fixes a problem that is unrelated to the original poster. anononline19's solution is to fix the entire OSD being locked (displays OSD Locked when the menu button is pressed).

Original poster's problem can be fixed by changing your graphics card's "overscan" settings.

Overscan on ATI cards:

Overscan on nVidia cards is currently not supported.

Oct 16, 2010 | AOC Computer Monitors

2 Answers


On screen display is locked. Fix it by:

The OSD can be enabled or disabled by pressing and holding the Menu button on the front panel for 10 seconds. If the OSD is locked, the warning message OSD Lock displays for ten seconds.

* If the OSD is locked, press and hold the Menu button for 10 seconds to unlock the OSD.
* If the OSD is unlocked, press and hold the Menu button for 10 seconds to lock the OSD.

Mar 14, 2010 | LG Flatron L1951S 19" LCD Flat Panel...

1 Answer

Osd locked

On some display devices, there is an OSD Lock that locks all current control settings and prevents access to the control menus until this mode is unlocked.

The method for unlocking the OSD is different for different monitors, but will be one of the 2 below. If the first method doesn't work, try the second.

Method 1: Press and hold both the [1] button on the front of the monitor and the down arrow button for 10 seconds.

Method 2: Press and hold both the [1] button on the front of the monitor and the up arrow button for 10 seconds.

Note: These same buttons, when pressed for another 10 seconds, will lock the OSD.

Nov 21, 2008 | ViewSonic E70f 17" CRT Monitor

2 Answers

Control locked

try this option press hold menu en arrow button to adjust setting en fix it for your best display set your resolution on 1024x768 60hz after that disable osd by removing resistor located on crt board loc# r117 tnx and good day.

Apr 04, 2008 | SAMTRON 55V 15" CRT Monitor

1 Answer

Screen ajustment

Hi stefan,

You can adjust manually using the OSD (on-screen display) menu of you monitor by pressing menu button. Other monitor OSDs cannot be accessed on single button but some combination of buttons but considering it can be accessed, please look for it. Try also changing the properties at Operating System GUID (graphics user interface display) Control Panel Display or your monitors display monitor application software. Try changing the frequencies and other special features like single screen or wide screen, etc..

Best regards,

Jan 30, 2008 | Acer AL1716 17" LCD Monitor

3 Answers

How to unlock the control lock in my monitor?

hold menu button for 10 secs for 753df

Dec 30, 2007 | Computer Monitors

1 Answer

Control Lock Problem w/ my Samsung SyncMaster 551v (black) monitor

with other SyncMasters pressing the "menu" button for at least 5 seconds helps ...

Dec 23, 2007 | Gateway FPD2275W LCD Monitor

13 Answers

Samtron 56V monitor

Even i was also having the same problem. We can unlock the control lock by holding the menu button for 10-20 seconds.... But now my problem is the message "Controls locked/" appears continuously. Screen width also reduced. If anyone know the solution for this please help. thanks in advance.


Oct 16, 2007 | SAMTRON 55V 15" CRT Monitor

3 Answers

Monitor displays "Controls Locked"

This is a "feature" they include to prevent accidental changes to the screen setup. You should be able to unlock the OSD by pushing the Menu button and the right arrow button together for about three seconds. The message "controls unlocked" should appear. Let us know if you have any other questions and please don't forget to rate the posting.

Jan 31, 2007 | LG Flatron L1715S 17" LCD Monitor

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