Having problems with your Philips 190B6CB/27 19" LCD ?

Volume control appears on screen uncommanded and cannot be sent away

\015 As described, the volume control box appears on the screen without volume buttons being pressed and remains there. Attempting to reduce the volume results in it increasing to 100% once the button is released, making me think that the volume increase signal is being sent somehow. Pressing 'ok' does not send the box away, disconnecting cable does not help, cycling power with power button has no apparent effect. Disconnecting power cord fixes the issue for a few seconds, whereupon the box appears again.\015

Answers :

I had exactly the same problem. The volume up button was constantly on, causing the on screen display to be permanently displayed. Here is the solution to fix it. This will also work for any other front panel buttons that are misbehaving.
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\015\012Note: If you monitor is still under warrantee, don't try and fix it yourself - just send it back.
\015\012
\015\012If you open your monitor you will find a small circuit board with a row of microswitches mounted on it. This is the circuit that's causing the problem.
\015\012
\015\012To open your monitor you will need to remove the stand (one plastic cover that unclips by hand and 4 screws that can be removed with a philips screwdriver). This will then reveal two additional countersunk screws that need to be removed.
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\015\012You can now remove the front cover. There are 4 clips at the base of the cover that can be removed by hand. You then need to pry the cover off, starting at the corner next to the power button. This is really quite stiff and you need to use a reasonable amount of force. Don't worry about the loud cracking sound as each clip along the side releases.
\015\012
\015\012Once the cover is removed you will see the circuit board with the microswitches staring you in the face.
\015\012
\015\012This board needs to be replaced but if you want to fix the problem immediately here is what I did.
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\015\012Disclaimer - Proceed at your own risk from here on in.
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\015\012Plug your monitor back into the power and reconnect to your PC. Make sure it's on and still showing the same problem.
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\015\012The curcuit board unclips and there is a 7 pin connector that also can be unclipped. Remove the board and undo the connector. You don't need to switch off the power.
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\015\012After the board has been removed for a few seconds, the on screen display that was permanently visible should disappear.
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\015\012Now I temporarily disabled the malfunctioning button by bending the associated pin on the connector 90 degrees and then reattaching the connector.
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\015\012How do you know which pin is associated with which button. Trial and error. Simply bend down a pin, and reattach the connector. If the problem persists, unplug and try the next pin.
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\015\012When you've found the correct pin, straighten the others and reattach the connector.
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\015\012Clip the curcuit board back in, making sure the connecting cable is clear and doesn't get pinched.
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\015\012Reassemble your monitor and you're good to go.
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\015\012The next step is to order a new circuit board from Philips. These should be really cheap (I hope) and you now know how to fit it yourself.
\015\012
\015\012I'm going to try ordering one tomorrow.
\015\012
\015\012Mark Gladding
Switch off the tv ,,if you have a remote control , remove the battery of the remote and switch on the power again..
\015\012If it works fien then the problem is in the remote control..
Repair Help & Product Troubleshooting for Philips 190B6CB/27 19" LCD

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