Setting Up as a Electronic Repair Authorized Service CenterWritten by Jestine Yong
Continued from page 1 • Reception Area – A proper reception area, neat and tidy workshop will reflect on them as well. First impression count a lot. • Tools and Test Equipment – The variety of tools and test equipment available will be taken into account. An oscilloscope, frequency counter, SMD rework station is a certain requirement. The work bench should be of decent size and comes with a fluorescent lighting. • Employee – There must be enough of employee to cope up with work of repair. Prolong or continuous delay of repair will make them to reconsider of changing to another service center. To run an Authorized Service Center needs total dedication, but it will bring you into contact with a lot of people, some of who can be quite influential. It can also widen product range that comes your way

Jestine Yong is a electronic repairer and a writer. For more repair information, please visit http://www.noahtec.com
| | What is ESR METER ? Written by Jestine Yong
Continued from page 1
» Low ohms resistor such as 0.22 ohm, 0.33 ohm and etc. » Horizontal yoke coil winding of a picture tube, inductor and primary winding of a transformer – If a shorted turn is present, inductance drops dramatically and meter will show ohms reading. » Horizontal output transistor (HOT) in a monitor or TV – If an open-circuit reading is obtained, short-circuit is elsewhere. If short-circuit remains, transistor is faulty. » Short-circuit in track, usually trace to components - You can use ESR meter to locate short-circuits on printed circuit boards by measuring actual track resistance. If reading increases as you probe further along track, you know you’re going in wrong direction! » Speakers, amplifier etc - The pulses have a fast rise/fall time, so it would probably make a crude RF signal injector as well. » The condition of both normal and rechargeable batteries – Flat and faulty battery will have high ESR.

Jestine Yong is a electronic repairer and a writer. For more repair information, please visit http://www.noahtec.com
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