Question about Philips MCM720 Shelf System

1 Answer

No sound i was playing music loud and all of a sudden the speakers just turned off but the system was still on. is that a fault in the speakers or the system?

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer
Re: no sound

MCM720 is one of the biggest CRAPS that Philips ever produced. if it is low volume, it produces 1250 Hz background noises that are real pain in the a... . If you go up with volume, amplifier goes into temporary shutdown. Just return and get money back and buy something better. Borut

Posted on Sep 15, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

I was playing a cd, then suddenly the speakers made a crackling sound and no more music. I have tries the turn-table, cassette player, and sound. what could be the problem?

Is there any sound via the headphones? If it is normal but not on the speakers you have a faulty headphone socket.
If you turn it up to full volume can you hear anything? If you can then the main amp has failed.

Oct 12, 2015 | Audio Shelf Systems

1 Answer

My jvc UX-D66 B micro system sound is very distorted and crackles when listening to music I checked the wires and they are fine it is the same through aux what could be the problem any advice please

You may have blown the speakers by playing too loud. Try listening with a pair of quality headphones. If the sound is clear through them - then the speakers are most likely the problem.

May 13, 2015 | JVC Audio Shelf Systems

1 Answer

Right speaker terminal not working - tested out both speakers and they work fine when independently tested on the left speaker terminal. Sony MHC GX45 Shelf System, 2 speakers and 1 sub.

If the sound is also dead on that channel on a pair of headphones. Then you have probably lost the main power amp for that channel. To be certain. With you headphones on, slide or turn the balance control so you can only hear the faulty channel. With some music playing turn up the volume. If you can hear "faintly" music playing then the pre-amp is OK and the power amp has gone.
The power amp will be located on a heat sink. It will consist of 4 transistors (2 for each channel) or one big device (or two) (an IC). If it is transistors you only need to replace the two for the right channel.

Aug 31, 2013 | Sony COMPLETE PWB, MP-45 Shelf System

1 Answer

No Audio on MHC-RV777D

its a commom fault in all the Hi fi system.its a dry fault put soldering in all components. the problem may be solved.

Nov 21, 2012 | Sony MHC-RV777D 220 Volt Hi-Fi Music...

1 Answer

I dropped my On Stage micro and now when my iPod is docked and the on stage is powered on their is a LOUD buzzing sound from the speakers. The auz-in mini plug still transmits sound and music fine, only...

I have had then same exact problem, except I had an ihome. I've done research on it for a way to fix it. basically what I have come to find is that the plug for the ipod is just cheaply made, and that there is basically no easy and cheap fix for it. However as long as you have an aux-in you can just simply avoid the problem by buying an eighth inch to eighth inch cord so that you can just simply plug you ipod into the aux-in. As long as you have the ipod plugged into the the aux-in, and aux mode is selected, it should play your music while charging.

Sep 21, 2009 | JBL On Stage Micro Speaker Dock for Apple...

1 Answer


theres a short in the wires either inside the box where the speakers are or the channels are blown.

Jun 07, 2009 | Panasonic SC-AK78 CD Shelf System

1 Answer

Switching off of SA-AK-37 Music system

Do you have the manual, I think panasonic put some of there fault codes in the back.

Seems to have lots of people saying it could possibly be a power supply fault, an amp fault or shorted speakers.. Some people have gone to the extreme of actually buying new components and trying to unsolder and resolder to try to fix it themselfs.

Try contacting Panasonic, they will be able to advise you better ot possibly repair / replace the system.

Jan 31, 2009 | Panasonic SC-AK200 CD Shelf System

1 Answer

Speakers humming. No reception.

The audio amplifier in the unit has failed, and that's what you smell. Turn it off and quit using it immediately - it presents a fire hazard. It might be possible to replace the bad parts. Depending on what it cost, you might want to take it somewhere for a repair estimate, but be prepared to learn it might not be fixable. Often the burned parts damage the circuit board as well.

Usually this happens in small stereo systems because of running them at high volumes for a long time. If you want to listen to loud music, you would be better off putting the money into a higher-power system.

Dec 08, 2008 | Audio Shelf Systems

1 Answer

SoundDock produces only harsh crackling sound

Yeah i had that same problem. You know the chord? The cord you plug in from outlet. The square cord you plug into your speakers.. yeah the "DC outlet" is supposed to be UP. if you have it the wrong way in there it wont work and will make a crackling sound.

Apr 30, 2008 | Bose SoundDock Digital Music System for...

1 Answer

Sound and speakers

Check the speakers connections. The speaker cables may be shorted. Turn the unit off, check and correct the connections and turn the unit on. good luck :-)

Jan 11, 2006 | Panasonic SC-AK66 CD Shelf System

Not finding what you are looking for?
Philips MCM720 Shelf System Logo

Related Topics:

123 people viewed this question

Ask a Question

Usually answered in minutes!

Top Philips Audio Shelf Systems Experts


Level 3 Expert

4518 Answers

The Knight
The Knight

Level 3 Expert

66623 Answers

Jonathon summesfield

Level 2 Expert

284 Answers

Are you a Philips Audio Shelf System Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides