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Ah, Sweet Memories - Part One
Finally! The colors of the leaves are changing, and now all too quickly. As I walk around my neighborhood enjoying the smells of autumn, combined with the reds, oranges and even maroons of some of the leaves, I think once more of all the autumns...
Ah, Sweet Memories - Part Two
Thank you for staying with me. Last week I shared some colorful autumn stories of my childhood that were truly enchanted moments. This week I hope you will enjoy part two as Emily shares her beautiful story about color and enchantment with us....
Interlace vs Progressive: What's the Difference?
Interlaced scanning
Interlaced scan-based images use techniques developed for CRT (Cathode Ray Tube) TV monitor displays, made up of 576 visible horizontal lines across a standard TV screen. Interlacing divides these into odd and even lines and...
Presenting with a Partner
There are times when you’ll share "the stage" with a business or personal partner. Perhaps one of you has a better grasp of technical or other aspects of your subject. Perhaps you are quite good at facilitating questions from the audience, or...
What Do We Tell Our Children?
What Do We Tell Our Children? or Little Pitchers Have Big Ears In the last few days, be it on a TV interview, a call in program, at a meeting or a consultation, people ask variations of the following questions. “What do we tell our children about...
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Electronic Schematics Diagram-The Four Commonly Asked Questions
I came across quite a number of questions about electronic circuit schematics diagram.
Most of the question asked are:
a) Do we really need a schematic diagram in order to repair any electronic equipment?
b) Will schematic diagram help us to repair faster?
c) At where we can get a particular schematic diagram?
d) How to read schematic diagram ?
Well, the answers is as below:
a)-Theoretically yes, practically not necessary, it all depends on how good you are
in electronic repair knowledge. For a beginner it is a 'must' for you to understand about
schematic diagram, as you gradually gained more knowledge you will automatically depends less
on schematic diagram. You will definitely need a schematic diagram when you come across a new
designed or technology. For example, when comes to crt monitor repair i seldom see
schematic because i already understood most of the circuitry and section in a crt monitor.
The new technology such as lcd or tft monitor makes me have to temporarily relies on schematic
diagram. As my knowledge of lcd monitor repair grows, i will gradually depends less on the
schematics. May be my situation is different from yours because i'm concentrating only on one
type of equipment. I've seen quite a lot of repairers in my country that repair many types of
equipment such as tv, video, vcd, dvd, amplifier, hi-fi, fax, laser printer, microwave and so
forth. Most probably they need schematic diagram to keep them up to date on each of the
equipment technology.
b) If you have a particular schematic diagram for that particular equipment, your troubleshooting
time can be reduced to half! Unfortunenately many manufacturer do not release their equipment's
schematic diagram. If you depends on too much of schematic you will be stuck on how to repair
that particular equipment. Why with schematic diagram you can repair any equipment faster?
Because a schematic diagram shown you all the part list, waveform, voltages, explanation how that particular equipment work, block diagram, schematic design, component's part number,
electrical schematics symbols, substitution, modification (if have) and electronic schematic symbols and etc.
Assuming you have a power supply section blown and you could not recognize the component part number, but with schematic you will be able to find the exact part number and finally repaired the equipment.
c) If you work in the equipment's factory or their distributor you will have the schematic diagram
for the model that they sell. Any under warranty unit that comes in you will be able to diagnose
and repair the equipment fast. This will increase the company's reputation and customers will
recommend to their friends about the quick service of that particular brand of equipment. You also
can get schematic diagram in the form of a book from local electronic shops. This is usually
a compilation of few brands and model of a specific electronic equipment. Tv or television schematics diagram are easily to get but computer monitor schematics and radio amplifier schematics is a little bit harder to find.
If you have the budget get one of the book. Third, as most of us already know that you can download free electronic schematics diagram from the internet. Free tv schematics is easily found on the internet. You may also buy it the 'CD' format. This investment will usually pay back in the
shortest time.
d) As how to read schematic diagram, i'm unable to show you thru article because you do need a real schematic diagram in order to make you understand. Reading schematic is not that difficult,
provided you have some basic electronic knowledge. I have a few suggestions:
-Ask from a friend who is in the repair line
-Take short courses on electronic repair and ask the lecturer
-Buy books from your local bookstore about the subject "how to read schematic diagram"
-Buy schematic diagram and learn on your own (this will take sometimes but worth it)
-Fix some project kit using the electronic kit schematics given. This will add to your knowledge
also.
Conclusion-In order to become a successful electronic repairer you must understand how to read
schematic diagram.
About the Author
Jestine Yong is a electronic repairer and a writer. For more electronic repair information please visit his website at http://www.noahtec.com/electronic-repair-articles.htm
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