VARIOUS ARTICLES AND INFORMATION
How To Troubleshoot Home Audio System Speakers that have stopped working

Troubleshooting by nature, involves breaking down a fault into possible causes, and eventually isolating the fault to a particular area or cause, and then solving the problem.

The first scenario we deal with here, is that the speakers are stone dead ie No noise or scratchiness comes out of the speakers at all.

Possible causes are, starting with the simplest and cheapest to fix first :

1. Speaker wires are disconnected from the audio system output connectors. Check and reconnect.
2. The volume control of your audio system is turned right down. Turn up the volume slowly until you can hear something.
3. Your "source" switch is switched to some unused input. Sources are usually DVD, Tuner, CD, Sat, BD, FM, Video, Disc, Phono, Tape, Aux, etc, etc.
4. Your speakers are switched off. Some audio systems (eg Sansui) have a on/off switch for the speakers. Check if you have such a switch, and make sure it is switched on.
5. Speaker wires are connected to the wrong audio system output connectors. Some systems have an A and a B output, with a switch somewhere that toggles between these two outputs. Try connecting the speaker wires to the other output.
6. Speaker wires are connected to the wrong connectors on the back of the audio system. Check in the manual that came with your system that you have connected the speaker wires to the correct terminals.
7. Speaker wires have come loose from the connectors on the back of the speaker boxes. Check and reconnect. Sometimes the speaker wires can come off inside the speaker boxes, but this will usually only affect one speaker at a time.
8. The audio system is not plugged in or switched on. Even seasoned technicians get caught with this one at times!
9. Speaker wires are frayed and are shorting out the connection to the speaker. Check your speaker wires for any loose metal wires sticking out anywhere. Even one little wire touching the chassis of the audio system can short out the system. This can also cause other problems, like blowing your output stage, (see item 11) so check the wiring carefully in a good light for any breaks, kinks or fraying.
10. Speakers are blown. To test if your speakers are blown, disconnect the speaker wires, one spaeker at a time,  from the audio system, and quickly touch the two wires onto the two terminals of a AA size penlight battery. The battery's voltage should cause your speakers to make a loud scratching sound. This means they are still working.
11. Output stage of your audio system is blown. This is a serious, expensive fault. To test it, get another speaker from another audio system, make sure your volume control is turned down to about 10%, and briefly connect it to your suspect audio system speaker output connectors. If you hear nothing, turn the volume up to about 20% and try again. If the output stage of your system is blown, you can sometimes smell an acrid smoky smell if you stick your nose on one of the ventilation grids of your system.

The second scenario is if the speakers are making a noise, but it's scratchy, distorted, muffled or a combination of these. Possible causes are bad wiring connections, speakers damaged from setting the volume too high, or using the wrong speakers for the system (eg using 16 ohm speakers in a 4 ohm system or vice versa)

Most speaker problems are minor and inexpensive to fix, unless of course you are in the habit of playing your audio system full blast for long periods of time!
HOW TO BLOW UP STUFF

Note: Don't try these at home kids!

HOW TO BLOW UP A BALLOON

Obviously, you place a small stick of dynamite under the balloon, and light the fuse. This is a very expensive exercise due to inflation. Why anyone would want to do this is beyond me...

HOW TO BLOW UP A VEHICLE

Place your lips firmly over the exhaust pipe and blow. Remember to smear your lips with some moisturising gel, as the exhaust pipe may burn them otherwise. It might be adviseable to switch off the engine before you try this.

HOW TO BLOW UP A SUBMARINE

Ask one of the sailors to take one end of a long pipe with him when he returns to his sub. You hold tightly to the other end. Then once the sub has put out to sea and submerged, blow as hard as you can in your end of the pipe until you see the sub pop up to the surface again. Choose a small sub, otherwise you may battle a bit.

HOW TO BLOW UP YOUR MOTHER IN LAW

DO NOT DO THIS! Do not even THINK about it!

HOW TO BLOW UP A CLOCK.

It is very important to get your timing right with this one. Two brave men tried this, and when the clock struck one, the other one was too traumatised to continue.

HOW TO BLOW UP A CHIMNEY.

Lie on your back at the base of the chimney with your head looking up the chimney pipe. Now blow. Try not to do this during heavy rain, or when the chimney is in use.

HOW TO BLOW DOWN A HOUSE

Hire a Big, Bad wolf. Make sure that it is not a brick house inhabited by three little pigs with attitudes.

HOW TO BLOW UP YOUR TEACHER

Take a colour photo of your teacher in high definition. Take it to the photo shop and enlarge it to 1.2 by 2.2 metres. You now have your teacher well and truly blown up.

HOW TO BLOW UP YOUR BUDDY.

Buy him chilli tacos and refried garlic beans. Feed him this for three days. Stand well back and observe, preferably upwind.

Now remember to observe all the proper safety rules when considering the above. These are:
1. Never do these stunts at home. Go next door.
2. Always wear clean underwear in case you have to go to hospital.
3. Wear rubber boots, safety glasses, a hard hat, heavy gloves, a chain mail suit and a bullet proof vest. Oh, and smear yourself with flame retardant gel too. Then if you get hurt you can't blame me!

Right, now to extricate my tongue from my cheek...

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The First Steps To Being Successful

Many millions of people are striving to be successful; to improve their situations, provide better for their families, and to pull themselves out of poverty or debt. But to many people, it seems impossible. They don't have money to start a business, or they don't have skills, and they just feel like it's impossible. But it is possible!

To start working towards your dream may seem as daunting as eating an elephant. How do you eat an elephant?
First you decide you are going eat it.
To eat an elephant, you take one bite at a time.
To eat an elephant, you have to realise you gonna be there awhile.
To eat an elephant, you need to live with the fact that you may get sick of eating elephant before you're half done!

THE BIG DECISION.
Deciding to go for your dream is actually the first and most important step. If you don't make a strong, definite decision you will take 3 bites of the elephant and then decide that you don't feel like elephant anymore, or you're "full!" Best practice is to write your decision down, along with reasons, rationale and motive for the decision. Put the date on it and sign it, and keep it handy so you can get it out and remind yourself what you are doing this for when things get rough.

ONE BITE AT A TIME
So to succeed, you have to tackle your goal one small step at a time. For example, if you want to write a book, first step is to write the first page. Then figure out a plot. Don't even think about publishing it yet - that's step 437!

YOU GOING TO BE THERE AWHILE
Most people take a long time to realise their dream. There is the odd exception where the person gets rich overnight, but that's not the norm. In fact, if you looked into the guys life, you would probably find that he's tried a hundred other things before he struck it rich with the one everybody sees. People seldom crow about their failures.

So we are talking about endurance. Don't let minor (or even major) failures discourage you. We all have them. You need to just get up and try again. You HAVE to get it right eventually! Edison, the famous inventor, tried to make a better working light bulb, and failed something like ten THOUSAND times (according to some sources) but he never gave up, and eventually was successful.

YOU WILL PROBABLY GET VERY SICK OF EATING ELEPHANT
On the way to achieving your dream, you will encounter times that are boring and tedious. You may have built an amazing invention, and now you have to do reams of paperwork for the patent office. But fight on through these times. They will come to an end eventually. And they are necessary to the success of your endeavours. Don't be like the joke about the marathon runner, who was 2 miles from the end when he said "Boy, I'm too tired to carry on! I'm going back...!"  When it seems like the boring work will never end, that's usually when you're on the brink of success. And of course, you will never know how close you are until success actually happens.

AFTER THE ELEPHANT COMES THE DESSERT!
We must keep our eyes on our goal and plough on through the mountainous seas, like a ship going through a storm, knowing the safe harbour is just over the horizon. Looking forward to that thrill of success can keep us going. Never give up - you HAVE to succeed sometime!

The Information Guru