Easy Reference Guide
PC Monitor Repair – ESR Meter and Horizontal Output Transistor Problems If you like tinkering with electronics and fixing PC monitor problems, sooner or later, you’ll have to deal with the Horizontal Output Transistor (HOT). It’s a component that’s present in both monitors & televisions, connected to the primary winding of the flyback transformer.
With an ESR meter – Equivalent Series Resistance meter – the job of testing the HOT becomes easier since your goal is to find out whether the transistor is faulty of not. Now, the reason why we use an ESR meter is because the readings we get are more accurate. This is specially true while testing components like capacitors where an ESR PC Monitor Repair – ESR Meter and Horizontal Output Transistor Problems
meter gives more accurate reading than an analog or digital capacitance meter. In the case of HOT testing, check if the ESR reading shows an open or short circuit. An open circuit means the HOT is okay while a short circuit means that the HOT is faulty and needs to be replaced. Source Website PC Monitor Repair â€“ Advanced Circuit Electronics (Click to visit)
PC Monitor Repair â€“ ESR Meter and Horizontal Output Transistor Problems