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PDWM8300; no sound

We have this system in our conference room. A few days ago someone was speaking into it normally, it gave off a loud feedback, popped and there has been no sound since. The lights are glowing on the mics and on the receiver.

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It sounds like you accidentally managed to wreck it but if you are lucky and there is a fuse you may be able to repair it however there is not a market for specialized fuses. If you are especially lucky and it uses a basic fuse these can be found at any general electronic shop. In the future please watch that the area is set up so that the system will not receive feedback, so noones laptops connected to the meeting having their individual sound on or in general having any microphones set too close to speakers.

Posted on Nov 21, 2013

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Posted on Jan 02, 2017

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Mitel superconsole 1000


Have you checked out the Manual? if not here is one > http://edocs.mitel.com/UG/EN/2ICP_SC1000_UG_R1_%20EN.pdf

May 05, 2014 | Lands Phones

Tip

Simple Tips for PA Systems for Conferences and Conventions


There are so many problems that could possibly happen when you go live with an event, I couldn't possibly list them all!
In fact, I keep finding new things that can go wrong every time I set up an event!
But all is not lost! In fact, it's just the nature of dealing with a lot of people and live event ---- anything could happen!
Let's look at some of the things that you should be prepared for, and what you can do about it!

Hiss

Hiss is usually caused by some device, usually an MP3 player or other kind of music player, that isn't turned up loud enough. Try turning it up.

Feedback and squeal

This the classic -- we've all heard it - and it can be a monster.---- you NEED to understand how to place speakers properly, how the system works in general, and how to set volumes.
Be absolutely certain that your speakers are not behind the microphone!

Howl and echo

Sometimes instead of a high pitched, full fledged feedback, you get a howling or echo sound that changes as things move around. When you touch the microphone it stops. Let go and it starts again. Move a little to the left and it's not so bad ... You can dance around all you want, but what you have is a problem. And this is a problem that can be impossible to fix once the event is underway. This is why we test before the audience arrives.
What causes the howling and echoing is the same thing that causes feedback - what you have is sort of "baby feedback" - it hasn't grown into full feedback yet. And it's correct for you to be concerned. Turn one thing up a tiny bit and the whole room will be overcome by a deafening squeal.
Two quick points - make certain that your speakers are placed forward of, NOT behind, your microphones. Moving them forward even just a few inches will make a very significant difference if they are already forward of the mics and you are getting howling or echo. Also, it's important to know where the volume control is, so you can turn it down fast if something goes wrong!

What about if the echo isn't the beginnings of feedback? Well, there's the possibility that the system may have some effects, like echo, that are built in. There might be a section called "effects" - and echo is selected and turned up. It's important that someone needs to understand the basic system and be in charge of it. That will solve this problem.

No Sound At All

First thing I would think is, it's a bad cable, probably a bad microphone cable. Especially if its a portable system. Be sure to take care of the microphone cables. In the industry we use the terms "known good." For example, I will always carry with me a cable that I know is good. If I need to troubleshoot, I swap the "known good" cable for one I suspect isn't working. Mic cables will just stop working sometimes. And then there's no time to fix it - you need a spare. Also, make sure to either dispose of the bad cable, or mark it - don't let it show up again in your setup!

The people in the back of the room can't hear!

This is actually a very common problem. When the speakers are properly positioned, you don't need to turn the volume up very high, and everyone will be able to hear very well. If you are running a conference or convention with 500 people or less, say, in a hotel ballroom, and using a portable system, try bringing one of the speakers back halfway into the room, and positioning it near a ceiling support beam so it's not too much in the way. If you have long enough speaker cables and can do this, your volume requirement will be far less to get nice clear sound to the people sitting in the back of the room!

General Tips

If you're setting up a portable system, keep the cabling safe and and as neat as possible. When something goes wrong it'll be easier to figure out, and make sure you tape the cables down so that people don't trip over them.

Use sturdy, well made speaker stands in portable systems

Keep audio cables and power cables away from each other

Never plug anything but a speaker into an amplifier output

Coach the presenters if you can - ask them to speak about 4" from the microphone

Never coil cables with your elbow - don't let them twist and they'll last a long time

Never coil extension cords (power cords) while they are being used, it creates an electrical field that can be dangerous and damage your equipment or even start a fire - don't use extension cords that are longer than they need to be.

Watch out for dimmers that control lights - turn them off if you have buzzing sounds

Always prepare - preparation is the best way to ensure a successful event.

This may seem like a lot of tips - you can review this list and find more related information at our website, whamuniversal.com

on Mar 06, 2010 | Music

1 Answer

Logitech speaker feedback


Feedback is a sharp, loud noise that can come through the earphones of a headset unexpectedly---it occurs when the headset is getting sound (feed) from someone else speaking or playing music into a microphone. This sound can create a dangerous situation for someone who is operating expensive equipment or flying a plane at the time since it can disable hearing temporarily.
If you experience feedback often, it could also lead to serious hearing problems.

Mic Too Close to the Speaker or Volume Too High
The main cause of a feedback sound in a headset is proximity to a speaker. If a person holding a microphone on the other end gets too close to a speaker, it creates a loop of re-amplified sound that results in the loud, screeching noise. When the volume on the other party's microphone is too high, it is more vulnerable to picking up unwanted noise and feedback from speakers and sound output devices in the room. So make sure that you ask the other party to turn down the microphone to a normal level and stay far from speakers. b> Two Microphones Gathering Same Sound b> When the other party places two microphones too close to each other, it could cause feedback. When positioned toward the sound source (such as a person speaking) the microphones will both pick up the same audio and compete with each other when creating the output of sound, causing a sharp noise in your headset. This problem, called acoustic phase interference, is resolved by simply ensuring that the other party uses one microphone at a time. Poor-Quality Headset or Microphone b> One common cause of feedback is simply a poor-quality headset or microphone. Most modern headsets and microphones have noise-canceling features that manage and kill feedback before it has a chance to occur. These noise-canceling headsets are essential for pilots and aviation crew members. If you hear sudden feedback that is strong enough to hurt your ears, the headset or microphone is simply not properly equipped to actively cancel that unwanted noise before it hits your ears. Buy a higher-quality noise-canceling headset to manage the feedback noise when you're going about your tasks. Hope this helps.

Dec 23, 2012 | Logitech Z623 Speaker System

1 Answer

Pdwm8300 microphone system not working


try reinstalling audio drivers
log on to
www.suppport.dell.com
click on drivers and downloads
enter your system's service tag
your system's service tag located at the bottom pannel of your system, turn it upside down you will find a bar coded sticker which has a 7 digit alphanumeric number
download latest audio drivers
save it on your desktop
go to device manager and uninstall audio drivers
restart your system
now install the latest audio drivers from your desktop
restart your system after installing the drivers
then check if the mic is working

Jul 26, 2012 | Pyle Wireless 8 Mic System Conference -...

2 Answers

Can't find my manual. How do I get the messages off the phone, it's a Magicbox Logan three dect thingy.. Also how do you get a conference call happening?


Hi
To delete messages you need to first listen to them all on your machine via the BASE, then after all the messages have been played (which can be very boring) press and hold the DEL button. It will then ask you to confirm deletion by pressing OK. Not too sure about the conference call as mine does not have it. If however someone else in the same room wants to listen to the caller you can press the handsfree button (speaker icon) on BASE. If you want to speak to someone within your household in another room, you need to press OK on HANDSET, then press down to INTERCOM, press OK again and it will give you several options, INTERCOM ALL (where all available handsets can talk to each other), or HANDSET 1 or 2 to select a specific one. Hope I have helped and it does not sound too gibberish!
Regards

Feb 04, 2011 | Lands Phones

1 Answer

Hyundai Accent 2001 making a loud-fan-like noise


POWER STEERING PROBLEM - CONTAINER CONSIST TWO LEVELS. SHOULD THE BOTTOM PART BE THE NORMAL COLOUR OF THE FLUID AND THE TOP PART APPEARS TO BE DIFFERENT THEN REMOVE THE CONTAINER AND CLEAN PROPERLY AS THERE IS A SIEVE BETWEEN THE TWO LEVELS WHICH IS BLOCKED. DRAIN OIL FROM POWER STEERING SYSTEM AND REFILL WITH NEW OIL.
iF BELTS WERE RECENTLY CHANGED THEN THE PROBLEM MIGHT LY BY ONE OF THE PULLEYS THAT IS WARN. MEANING THAT THE BELT INBEDDS TO DEEP INTO THE PULLEY AND CAUSE THE BELT TO SQUEL. SHOULD YOU POUR WATER ONTO THE BELT WHILE IT IS SQUELING IT PROVES THAT IT IS EITHER THE BELT THAT NEEDS REPLACELMENT OR ONE OF THE PULLEY PROVIDING THE BELT TENSION IS INSPECT

Jul 14, 2009 | 2001 Hyundai Accent

1 Answer

Polycom sound station 2 conference set conference problem


sounds strange, it lookslike a main board problem, considering that u have been using similar unit before.there is not much that u can do from the menu options.u will have to refer ur vendor for rpairs

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2 Answers

I have to go onstage and make a presentation


ok bunnydawg, what is your presentation about, how long is it going to be, how many in audience, when is it?
Although I'm wondering what the answers are for the above, here are some suggestions: practice, practice, practice!!! Start out by yourself w/ your presentation written down. Go from start to finish, speaking out loud, as if you were giving the presentation for real.
U can move up to practicing in front of family and friends. I must say I have gone through the same nervous, anxiety, freaking out myself when I had to give talks to groups of people. It gets easier with actually doing it, but the one thing I found is this--no matter how much u read over your material, and know it well, it's a totally different experience trying to speak out loud to a group. That's why I think u should practice speaking your presentation out loud, it's really helpful. So, answer my questions, and I'll be interested to hear how it goes! Break a leg! curt

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1 Answer

My table saw will turn on, but sounds very loud


Possibly bearing wear, or the blade rubbing against the guard/housing. Unplug the saw and spin the blade slowly by hand, if it feels notchy then I would suggest bearing wear. if it only seems to feel notchy in places then it could also be damaged gears.

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