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Question about Samsung SyncMaster 150MP Monitor

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Clicking sound I have a reoccurring clicking sound coming from the speakers. The sound happens even when the monitor is set to mute in TV mode. It happens in Video 1, Video 2 and TV modes. It goes away if I pick the PC option. Although I have not sent PC sounds to verify if it does indeed still occur. The clicking sound is random and not in any particular pattern. Any help would be great. Or if its even worth trying to get it fixed.

Posted by Fred Pace on

  • Marinetrader Jan 22, 2008

    I have the same problem but do not have anything next to my monitor.

    The monitor has been working fine for the past 3 years and all of a sudden it starts popping sounds from the monitors speakers. I muted it and it still continues. Any suggestions will be greatly appreciated.

  • Ben
    Ben Oct 16, 2008

    I recently have the same problem.

    I'm an EE though - so I cracked open my monitor and replaced the audio amplifier IC ( TDA7268 ) to no avail. When the unit is powered off, no clicking and the power to the TDA7268 is shut off upstream.

    When powered on, the TDA7268 is powered up to 12V. After a couple moments, there's an oscillation that can be heard (whine) and then the chip heats up (too hot to touch) and the clicking occurs.

    The oscillation is > 200KHz so it eventually can't be heard, but it's there and trying to drive the speakers @ 8Vp-p.

    The Speakers are the only load to the power outputs and do not cure the overheating/clicking if removed from the circuit.


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  • 18 Answers

I found the problem.

I've written up a small article on my website detailing the fix but in summary here:

Electrolytic Capacitors C826 and C835 go bad because of the heat stress applied by the audio amplifier right below them. Replacing those capacitors fixed my 150MP.

For more information see:

Posted on Oct 17, 2008

  • Ben
    Ben Mar 03, 2009

    I have now fixed another one of these monitors with the same problem. So it's confirmed the clicking sound has been cause by the dead capacitors in 100% of the 2 cases I've seen.

    See my website for more information.




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  • 84 Answers

If you keep a cell phone by the speaker that could be the issue. Some cell phones, particularly Nextel phones, cause some interference. There may also be another device close by that is causing the interference as well.

Posted on Jul 06, 2007

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Related Questions:


My computer is a SyncMasterP2570HD i cant get any sound to come out but it is detecting sound how do i fix it

The Samsung SyncMaster P2570hd is a monitor with speakers; it isn't the computer itself. I'll assume that you are dealing with a computer connected to the monitor and not a set-top box. Make sure that Mute is not enabled on the computer. There should be an icon on the lower right hand side of a Windows desktop. If the mute is enabled, it will have a red circle with a diagonal line through it. Left click on the icon to remove the mute (change the volume or click on the mute icon). Test the monitor's speakers by connecting it to another device with known good audio output.

Next how are you connecting the monitor to the computer (VGA, DVI or HDMI)? If you are using VGA or DVI (including DVI to HDMI), you need to connect an audio patch cable (3.5 mm) between the speaker (green port on the back of a sound card) or headphone jack of the computer and the audio input jack of the monitor. The audio input jack is between the DVI and VGA ports. You can test the output of the speaker jack on the computer with regular computer speakers. Plug in the power cord (or USB cable) for powered speakers. If the free-standing speakers work, check the volume setting on the monitor with the +/- buttons to the right of the menu button. Do not press menu first, though. If that doesn't solve the problem, continue using the separate speakers. (Unless the monitor is still under warranty, it usually isn't worth taking apart a monitor to replace the speakers. You may be able find replacement parts online.)

If you are using an HDMI cable, check the output audio setting to see if the HDMI audio is available. For Windows, click on Start > Control Panel > Hardware and Sound (Windows 7). Then click on Manage Audio Devices under Sound. In the Playback tab, check what available audio devices you have. Make the HDMI the default device by right-clicking on it and selecting Make this the default device. (Other versions of Windows will a slightly different route to this panel.) You may need to restart the computer to get the audio signal on the HDMI cable after setting this. Note: not all video cards/computers support HDMI audio. If you don't see HDMI listed in the Playback devices, connect an audio patch cable as with a VGA or DVI cable, described above. Use stand-alone speakers if the monitor's speakers are bad.

I hope this helps.

Cindy Wells
(I have had the speakers fail in monitors; <$30 separate speakers are an adequate replacement for those built into a flat panel monitor.)

I have no sound when I go to the internet to play a video.

If your sound works everywhere else, then look for the volume setting right on the video itself. Most videos online have there own volume setting and it may be muted.

How do i turn off the sound


You can use the function button in your keyboard + Mute sound button in the top keyboard rows to mute and unmute the sounds.

(fn key + Mute symbol key)

I hope this is helpful to you.

HP dv71020us. Owned the laptop for 13 months and this never happened before. Audio does not come out of speakers until a headphone jack is placed in one of the front holes. When there is something...

Your issue from what I read is a setting issue.
you have your setting in headphone mode from what I gather and you need to place the setting for the sound card in output mode which is in the Windows sound setting.
1.Check the task bar where the speaker icon is ( Windows 7) or Windows XP.
2. Left click here and your volume control will show with a caption of "mixer" at the bottom.
3. Left click this hyper link and it will show you the properties of the speak device.
4. If you see a speak icon on the left >> click it and you will then see a tabs window
with tab label across with "general being 1st.
5. click the "level" tab and you will see the l"line in" microphone etc. They may be muted click the muted sign to enable.
6. then check sound.


Have external gateway speakers

First make sure your sound cards are working properly. 1) Check the master volume of your PC. Go to start menu, control panel, sounds speech and audio devices, sounds and audio devices - i) In volume tab click the speaker volume and check whether all the left, right, etc.. volumes are in medium or high. ii) In audio tab click the volume tab of sound playback and make sure that the master volume is not in mute and all the volumes are either in medium level or at 100%. After making these changes try playing any music. Even if the problem persists go and get your sound card checked in an authorised service centre.

Thanks & Regards,

The speakers are partially muted thru the TV mode.

you mean with all tv channels too? there might be an attenuation setting somewhere that has to be de-activated. Check the manuals. hope this helps and pls come back for a feedback

Rhythmic clicking sound when the monitor is on

I just recently posted about this and you might have the same issue with the TDA7268 Audio Amp chip used in the 150MP that I am and currently trying to resolve.


No sound from monitor

check settings on the actual monitor or right bottom corner of your screen double click on a little speaker and check its not on mute or set down.
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