Problem In Identifying Components
Have you come across components that have no marking or with part number that you can’t get from the internet? The part number are not those common number like C945, C1815, A1015 instead it could start with BHQ555 or TDY1057 or even KIL7009 and etc. Those are not standard part number and made our life as repairman difficult in tracking down what component was that. If you refer to the board, it was labeled as “Q” and you know that it was a transistor but which type? An NPN, PNP, P-Channel FET, N-channel FET, SCR, Triac and etc?
Normally you could locate the type of component if you have the schematic diagram but what if you doesn’t have any? The only way for me to find out te component is to use the Peak Atlas Analyzer. Just clip on any of those 3 pins and the tester will tellthe pin configuration and also the type of component that you are testing it.
Now sometimes this tester also would not show the result and this would make the repair even more difficult. I would like to hear from you if you have the solution for this kind of problem by posting your feedback in the comment link below-thanks!