talk electronics and troubleshooting tips

The most common troubleshooting techniques are listed below: a) power check (capacitor,diode,voltage regulator,power line) b)Visual inspection- to detect the posible faults(cold solder and any burnt component) c)using sense of touch- overheated component d)smell check-fail due to overheating that cause the component become burnt e)component replacing f)Signal tracing(using multimeter,DMM,oscilloscope) Steps to better soldering: The ability to solder is an essential skills for anyone involved with electronics. A single bad joint can take hours of fault-finding to isolate, and considerably raise the stress ladders of the constructor. The soldering process enables teo metal surfaces to be joined by addition of molten filler which "sets" to form a solid connectio. In electronics work the filler is an alloy of 60% Tin and 40% Lead. This alloy is supplied in the form of a wire with cores of flux running through it. The flux is a very aggresive chemical, activated by the heat of the...

Resistor: Equipment needed: multimeter procedure: 1. read the indicated(color-code) value on the resistor body 2. set the multimeter to the OHM-SCALE, the range within but not way below the indicated value. Good indication: A resistor is good if its resistance is close to the indicated value. TOlerance should be considered with the ohmmeter. Defective indication: 1. No resistance reading at all in the OHM scale settings- resistor is open 2. Zero resistance reading at all in hte OHM scale setting- resistor is shorted Capacitor: A capacitor fails due to the deterioration of the dielectric material between its plates. Defective capacitor can have a internal shorted terminal, excessive leakage and degradation of capacitance. Capacitor check can be made with a capacitance meter. Electrolytic capacitor: equipment needed: multimeter procedure: 1. Momentarily short the terminals of the electrolytic capacitor to discharge to discharge it. Be carefull in doing this step to avoid electric shock 2...