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The Importance Of Electronic Repair Courses

Attending electronics repair course provided by your local electronic training institutions is a good move to increase your knowledge in electronics. We cannot limit ourselves in just attending a single subject such as basic electronic troubleshooting... Read >

Ceramic Disc Capacitor - How to Accurately Test It

The last article I mentioned about electrolytic capacitor breakdown when under load. In this article I will talk about the high voltage resin coated ceramic disc capacitor. In computer monitor, it is frequent used in the screen voltage (G2) line at the cr... Read >

What is ESR Meter?

All capacitors have a certain amount of resistance to the passage of AC current. ESR (Equivalent Series Resistance) is the sum of all internal resistances of a capacitor measured in Ohms. An ideal capacitor has ZERO ohms ESR. From the diagram below yo... Read >

What Is A Fuse? And How To Test It

A fuse is a very thin wire, which either melts or vaporizes when too much current flows through it. The thin wire may be made of aluminum, tin-coated copper or nickel. The resulting open in the circuit stops current flow. In electronic equipment, most... Read >

Understanding Transistor Data and Replacement

If, for some reason, you can't get an exact replacement for the transistor that you want to replace, you can refer to one of the transistor substitution guides or book, and try to identify a "near replacement". Beware, however. A substitution guide wi... Read >

Setting Up as an Electronic Repair Authorized Service Center

If you plan to upgrade your workshop into an Authorized Service Center, this should guarantee plenty of work and a secure future. Setting up from scratch as an Authorized Service Center is not an easy job. Your workshop needs to meet the manufacturers... Read >

What Is A Crystal? And How To Test It

Crystal are use to keep the frequency of the clock from drifting. If the signal from this clock stops, or is weak, or the pulses begin to vary, the electronic equipments might show intermittent faults or might stop altogether. The microprocessor pins ... Read >

How to Read CRT Tube Part Numbers

All picture tubes, whether monochrome or color type are identified by a specific code consisting of numbers and letters. The codes are different from each other because different tubes have different characteristics. For example, a certain monitor ... Read >

How to Solve Multiple Paper Loading Problem in HP5L and HP6L Laser Printer

Have you ever encountered before the problem of having multiple paper loading in your HP LaserJet 5L and 6L? Do you know that this is caused by a defective separation pad where it's rubber has worn out. The function of separation pad is to control or a... Read >

Electronic Books And Magazines Can Be Among Your Cost Effective Servicing Tools

Electronic servicing is, as they say, a "growth industry". With many new electronic products and equipments reaching the market, there is a large demand for electronic repair technicians. However, with the growing complexity in the electronic service bu... Read >

What is EEPROM ?

EEPROM stands for Electrical Erasable Programmable Read Only Memory and also referred to as E²PROM. As the name suggest, an EEPROM can be both erased and programmed with electrical pulses. Since it can be both electrically written into and electrical... Read >

How to Read Zener Diode Code

Many technicians are confused on how to really read a zener diode code. There are many types of code number indicated on it's body. The look and shape of a zener diode sometimescan be mistaken to be a normal signal diode. To differentiate it, is by lo... Read >

Testing Flyback Transformer - How to Test and When to Replace It

Nowadays, more and more monitor comes in with flyback transformers problems. Testing flyback transformers are not difficult if you carefully follow the instruction. In many cases, the flyback transformer can become short circuit after using not more t... Read >

Testing Diode -The Accurate Way on How to Test Semiconductor Diode Using Multimeter

Testing diodes is different from testing a resistor because you need a skill to do it. If you do not know or wrongly test a diode you will be unable to repair the equipment. A bad diode you think it is good. This will definitely waste your precious ti... Read >

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 ... Read >