Question about Philips 40PFL3705D 40 in LCD TV

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Philips 40PFL3705D/F7 turns on with white light no sound and no pictures can not use buttons for channel or volume

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Posted on Jan 02, 2017

  • 102 Answers

SOURCE: 19pfl3403d/f7 rolls constently thru the channels

If it does this, even when the remote control is in a different room (or has the batteries removed), you need to have the set serviced by a professional.
If it only happens when the remote is nearby then you may actually have stuck keys or the equivalent shorting inside the remote. Some remote cases open easily and you can blow out the inside and under the keys with "canned air" spray.
If the problem is with the remote, you can buy a cheap replacement at a local drug store. They will be labeled "universal" remote. However, no remote is truly universal. Check the label on the package and verify online that the device will work with your brand of TV BEFORE you buy.

Never open the case of a CRT or Plama television as there are LETHAL voltages inside for WEEKS after the set is unplugged.

Posted on Jan 02, 2010

SD Tech
  • 14553 Answers


If the remote works for the set, both it and the buttons on the set go to the same place in these sets.

The Keyboard with the manual buttons may have a lockout feature--it can be locked to prevent children etc from tampering with the controls.

If no function from remote, that could be same issue or another==key board has priority over the remote control.

if all else fails carefully read the owner manual.

Posted on May 24, 2012

  • 17129 Answers

SOURCE: philips 40pfl7705d/f7 tv has no picture but has sound

Possible it can be failure of the t- con driver board but it is necessary that you measure the voltage on the boards.
Check for visible leaks from capacitor , burnt driver or IC or resistance that can lead to the fault. If not the board must be replaced.

Posted on Jul 05, 2012

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Maybe a thermal problem or there is something apart loose even use cold spray, manipulated by slight shaking or tapping components.

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I have a philips 40pfl3705d/f7 LCD TV and the volume can be seen onscreen adjusting itself randomly. Tuns on and off by itself and so on all by itself. When it works it works great. But randomly it seems a...

You might need to get this checked with the manfucaturer, looks like a malfunctioning remote control. Or you can just replace the remot and see if that helps.

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TV Manual for "40" PHILIPS

Paste the following link in your browser & download the manual.


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