Wrong Diagnosis In Electronic Repair
In electronic repair, if there is a wrong diagnosis in a circuit then the rest of troubleshooting time would be wasted. One has to be sharp and know what they are checking. Confirming the problem on a wrong section not only you can’t find the problem, your precious repair time will be lost. You have to be certain that the circuit you are checking indeed faulty otherwise you will not find out the fault because the actual fault lies in somewhere else.
In my yesterday post about the B+ coil, a small display can be caused by a failure in B+ circuit or even in the horizontal width circuit. If you did not check on the horizontal width circuit and just concentrate on the B+ circuit, I’m sure at the end of the day you will not find out the fault. In other word, before you start to troubleshoot any electronic equipment, analyze the schematic diagram and read as much as possible from forums or books that related to the equipment you want to repair. This will greatly reduce your troubleshooting time because now you know what circuit you should check.