The best way to test a 240v linear transformer is to power on. Of course you can test the ohms of the winding for the primary and secondary side but measuring the input and output voltage by...

It’s simple to check flyback transformer with the help of a flyback tester, digital capacitance meter and an analog meter. First check the internal capacitor of the flyback, it should have between 1.5 nf to about 4.5...

It is very true that picture tube does have hazards. The x-ray emission, electromagnetic field and implosion (due to a fall caused the picture tube to crack and scattered the glass) can cause danger to us. If...

You can test a crystal with a frequency counter or even with an oscilloscope. Some digital multimeter have a built in feature of testing crystal. The range can go as high as 24 MHZ and above. If...

The common fault for this samsung  713n LCD Monitor was no display and OSD running with the word “Not Optimum Mode Recommended mode: 1280×1024 60Hz”. Many other users thought that it was setting problem but actually it...

Sam’s website used to sell lots of technical repair books but now they have less books. Could it be the trend that people like to buy from AMAZON? Those days you could see the website updating electronic...

Checking capacitor with ohm meter can be done by using an analog meter. I knew that ESR meter is the best meter to check capacitor (electrolytic) but somehow you also need to use an analog meter to...

As a Monitor repairer, the most frustated moment was troubleshooting horizontal deflection circuits. However, once you know how this horizontal deflection circuits work, it is just like any other electronic circuit. I still could recalled when i just...