Troubleshooting Basics posting (cont.)

Troubleshooting Basics posting (cont.) - Troubleshooting...

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Unformatted text preview: Troubleshooting (cont.) Types of electronic problems Finding defective components Power supply test points Types of Electronic Problems No DC Power Easy to fix Bad or discharged battery Disconnected or broken plug Fuse or breaker blown / broken connection Difficult to fix Loaded by circuit component(s) No AC Input Signal Verify output of AC source Types of Electronic Problems Traumatic failures Fire / Smoke Damage Actual fire Applied over-voltage Reverse polarity (DC) Effects: ICs , polarized caps , diodes, transistors Physical abuse Dropped, thrown, kicked, mishandled, etc. Water immersion, lightning Types of Electronic Problems Intermittent Problems Mechanical Loose connection, cold / no solder joint, poor crimp, dirty contacts, cracked PWB Thermal Most likely semiconductor component o Thermal cycling Erratic Environmental chamber Operate at max. ratings over entire power supply range for an extended time Types of Electronic Problems...
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This note was uploaded on 04/02/2008 for the course IME 156 taught by Professor Perks during the Fall '07 term at Cal Poly.

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Troubleshooting Basics posting (cont.) - Troubleshooting...

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