How you read schematic diagram without knowing the function of the circuit? (electronic)

Salam,

Many things need to catch up in past two weeks. Eight cases handled from various customer basically more on electronics's components (SMD) and Printed Circuit Board Assembly (PCBA). Alhamdulillah my senior assist me a lots. He told "we are like detective", because every time found somethings need to take evidence (picture/diagnostic/functional result). Jom! let learns together..



How you read schematic diagram without knowing the function of the circuit? (electronic)

I had search on google and found something goods from expert who have working experience more than 20 years on electronics.. :) Below is the answer:-

"I've been an electronics tech for almost 20 years now. Learning to read schematics takes time and is a crucial part of troubleshooting. There's people who have been in the field for years and are still not proficient at reading prints. Of course being able to read the prints does you no good if you don't understand electricity and electronics. But the first step to reading prints is learning the symbols.

Here's a VERY good free intro to schematic symbols. It even has a little matching excersice at the end. Start here:

http://www.wisc-online.com <--register free

Once you've completed the excersice, you can go to this link where they have a pretty good reference chart of component symbols and their function.

http://www.kpsec.freeuk.com/symbol.htm

These will get you started.

There are many different kinds of diagrams (1-line, 3-line, Elevation, P&ID, Instrument Loop, Logic Flow, Schematic, Mechanical Integrity, Electrical, Conduit plan, Wire Schedule, etc, etc). Learning how to read all of them proficiently is quite a task and can't be explained here."

What should you do if customer make a complain?? (Business)

Salam,

Within 2 month i was assign to do on-job training specialize in technical. C*S*O had make a complain on our product. The complain is "no Rx EYE". Alhamdulillah, Allah had sent someone to assist me. My senior told me to do:-



1). Test Functional (to verified failure base on customer report)
2). VMI on Interface (Visual Mechanical Inspection)
3). Open housing and test functional.
4). VMI on Circuit Board (Visual Mechanical Inspection)
5). Backup old firmware, replace with new firmware and Test Functional (to ensure either firmware problem or hardware problem)
6). Troubleshoot electronic components
7). Record reading and analysis (as evidence)
8). Compare reading with good product (to find faulty component)
10). Decide to swap component for test functional

The step design for verified failure, find root cause of the problem and find the corrective action to solve the problem. All step taken must follow with supportive evidence like picture, measurement and calculation.

The following step given are suitable for electronic product. For business purpose i recommend you try for customer satisfaction. Remember, in business the important is:-
1). Fast Delivery
2). Good Quality



What ever we do, remember "Setiap perbuatan didahului dengan niat". :)