Computer Monitor Flyback Transformer – Replacement and Substitution
Computer monitor flyback transformer comes with many kinds of part numbers, designs, and inductance winding values. Although some may have different part numbers, they can be used to replace them with another monitor model! The Monitor flyback transformer is made by many different manufacturers, so many different types of part numbers are produced. If you know exactly the winding value of each flyback transformer, it will be easy for you to find a replacement.
A good example is the Samsung Samtron flyback transformer with part number FKD15A001 and is the same as FKG15A001. Another good part number is Acer Monitor-19.00026, which is the same as 19.00038. To find out if a particular flyback transformer can be replaced with another part number or even another brand of flyback transformer, an inductance meter should be used. It is mandatory to have one.
Normally, a monitor flyback transformer has few pins that are important, such as B plus (+) pin, horizontal collector pulse pin, G1, AFC (automatic frequency control), X-RAY PROTECTION pin, ABL (limiter). blanking), ground, and horizontal centering pin. If you want to be 100% sure that the surrogate flyback transformer can work for your computer monitor, you first need to calculate the inductance values for each winding, such as what is the inductance value of the primary winding, between ground to AFC and ground to G1.
Winding tolerances should be around 5-10 percent and make sure you know which pin you are measuring. Let’s say the original flyback primary winding (pin B+ and collector pulse pin) has an inductance value of 1.5 millihenry, then the replacement flyback should have a value between 1.45 and 1.65 millihenry. If the value of the winding inductance is too high or too low, it will cause the horizontal size screen of the monitor to become too large or too small horizontally and may even burn out the horizontal output (HOT) transistor in a very short time.
Your next attempt is to find out the value of Ground to G1, Ground to AFC, and so on. If you want to find out the ABL pin, you can always check my electronic repair website at the bottom of this article. Owning a flyback transformer schematic or circuit diagram is the best way to find the correct pinouts. If you don’t have the information, you have to find the pin with the help of inductance meter. Sometimes searching the internet will help you get the return scheme.
It may take you a long time to understand the art of testing the value of flyback inductance, but the time you have spent is well worth it and who knows, one day you may be able to find the right monitor flyback transformer replacement, even without the help from a flyback. Transformer cross reference schematic. One last word, whether it’s an Imac, Hitachi, Sony, Rca TV, or any type of flyback transformer, the ways to find the replacement are the same. You just need some hard work like studying the flyback schematic diagram and start practicing with the help of your inductance meter.
