Question about Coby DVD-755 System

1 Answer

Hum from speaker

I have never heard all five speakers work on this system, and there is this highpitched noise, It is annoying me to the point of wanting to get rid of this system and never buy anything coby again.

Posted by on

1 Answer

I'm having trouble with getting all 5 speakers to work Cobys website says that you have to change the audio output but I have no idea how to do this

Posted on Nov 03, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

How can i fix the annoying buzzing sound on my megaworks 210d when power is turned on?


If the speakers are plugged into one mains outlet and the amp is connected to a different mains outlet the you can get an earth loop which causes a hum in the speakers.
If this is the case then connect all your system into a power board and connect the power board into a single mains outlet.

Mar 06, 2012 | Audio Players & Recorders

1 Answer

Serial number 00-06778552, a gig amp manufactured about 1977/78, (used in an American tour in 1978). While running a practice session at low volume, the yellow DDT light blanked altogether (this has been...


The amp has a failure. One side of the power amp is starting to draw excessive current to the point that the filter caps can't sustain the current so the ripple starts to be heard in the speaker. Continued use MAY burn up the speaker by sending DC through it as well as causing additional damage to circuit boards, etc..

May 25, 2011 | Peavey Max 115 1x15 Bass Combo Amplifier,...

3 Answers

Two speakers hum noise


Very doubtful that hum issue is ground potential difference from multiple power outlets as power cord is not grounding type (it is transformer isolated). I do agree that it is good practice to connect all audio equipment to common power strip though, especially with pro sound. Check the audio cords connecting your speakers to the coumputer sound card: 1) Make sure they are connected to the correct jacks and plugged in all the way, 2) wipe the connectors off with a clean paper towel wetted with a smidge of WD-40, 3) replace cords if all else fails. I have also seen solder joints fail on the power supply capacitors (due to vibration) causing hum -- but leave this repair to an electronics technician due to dangerous voltages.

Sep 25, 2010 | Altec Lansing AVS 500 Computer Speakers

1 Answer

Annoying hum from speakers w/system off


The big electrolytic capacitor(s) in the power supply. The filter out the 50/60HZ hum in the mains, so you could be hearing the mains hum!

Jan 02, 2010 | Memorex MX4100 CD Shelf System

2 Answers

There is a loud hum when volume is on low to high


go to control panel
sound and audio devices
voice
under voice recording clk volume and mute the mic phone...........
or
some how your mic is conflicting with speakers. Keep your mic away from your speakers..

Do reply if this woks

Oct 03, 2009 | Bose Companion II Computer Speakers

1 Answer

The noise is a hum or buzz. We've narrowed it


Hello,

By chance have you tried making sure the laptop is not too close to the speakers? Sometime you will get feedback when the source is to close to high powered speakers. Also, check your jack cord and make sure no splits/cuts are visiable and the plugs are fully inserted.

Good Luck and keep making great music. Aloha.

C2Solutions

Sep 02, 2009 | Dell Inspiron 6000 Notebook

1 Answer

Background hum


I fixed the same issue by replacing the original AC power supply with a 13.8 volt DC power supply (Radio Shack) It seems to be more consistent at high SPL and no hum , as the Boston acoustic unit accepts either AC or DC power.

Jan 29, 2009 | Boston Acoustics MediaTheater Computer...

1 Answer

Hum in speakers


Unplug the minijack from computer to hear if it still hums. If not test speakers at another computer. if it works fine on other computer the sounncard is generating hum noise. Common problem is usually the earthing cable inside the minjack that is touching L or R speakerwire due to bending of cable and breaking off insulation. If youre up to it cut off minijack if its moulde and resolder a new one on.

Oct 26, 2008 | Harman Kardon SoundSticks II Computer...

1 Answer

Background "hum" in R speaker


Yea try plugging it into another wall socket, if it's still humming could be a damaged transformer. or bad capacitor.

Jun 05, 2008 | RCA RS2531 CD Shelf System

Not finding what you are looking for?
Coby DVD-755 System Logo

Related Topics:

108 people viewed this question

Ask a Question

Usually answered in minutes!

Top Coby Audio Players & Recorders Experts

kakima

Level 3 Expert

101642 Answers

Gyula Lacz

Level 3 Expert

482 Answers

Cindy Wells

Level 3 Expert

4888 Answers

Are you a Coby Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...