Question about Philips 105S51 15" CRT Monitor

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Screen not appear,no Oscillation & no F.B.T on

My Philips 105e Monitor gives smell & Suddenly Screen Disappear ,When i removed back Cover 2 Resistance(22k & 14.5k) burn near F.B.T i changed her but no results come, IRF9620 & TIP122 are ok . I can't understand whats the problem, Pls help me , may be F.B.T not work Properly .Horizental out put also ok.
Thanks

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Check the boost voltage.may be there is a short in -160v.
-prabakaran-

Posted on Jul 12, 2010

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Hi..there,
It's seems you got a backling inverter busted. Need to replaced a new one or repaired it. To repaired you need to replaced a bad capacitors with a bulged on top of each caps. Not sure...just replaced all the caps...:) Ok! to open the back cover, there are 2 types to open it. First unscrew the 4 corner screws. If there are some... First type it from the back. After you had removed all the screws. Get a good grip on the bottom R/H side with both hands pulling as hard as you can on the 2 joints. 2nd type from the front bezel. Laid your monitor screen upward and placed a piece of clothes to proctect the screen from smudged. Used 2 hands to lifted up the edged of a bezel...do the same on the other side... After that just removed the screws...and that's how to open the front and back cover... Have a nice day!

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Aug 26, 2008 | Philips 105S51 15" CRT Monitor

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Volume control appears on screen uncommanded and cannot be sent away


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.

Note: If you monitor is still under warrantee, don't try and fix it yourself - just send it back.

If 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.

To 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.

You 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.

Once the cover is removed you will see the circuit board with the microswitches staring you in the face.

This board needs to be replaced but if you want to fix the problem immediately here is what I did.

Disclaimer - Proceed at your own risk from here on in.

Plug your monitor back into the power and reconnect to your PC. Make sure it's on and still showing the same problem.

The 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.

After the board has been removed for a few seconds, the on screen display that was permanently visible should disappear.

Now I temporarily disabled the malfunctioning button by bending the associated pin on the connector 90 degrees and then reattaching the connector.

How 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.

When you've found the correct pin, straighten the others and reattach the connector.

Clip the curcuit board back in, making sure the connecting cable is clear and doesn't get pinched.

Reassemble your monitor and you're good to go.

The 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.

I'm going to try ordering one tomorrow.

Mark Gladding

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f1703 monitor >> too simple!!! Unclip the front cover that sits around the front screen. >Becareful not to break the clips.>Remove the adjustment 715L1009-1-B (MANNEQUIN KEY BOARD) it has 2 screws and unclips from opposite side of the board. >> Clip back the surrounding cover.
Job done, no more OSD MAIN MENU ON YOUR SCREEN.
And you do not need to replace the board, your monitor will work just fine.

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1 Answer

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as your power supply is ok check hor. section if it becomes ok you will get voltage on g1 &g2.

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