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TROUBLESHOOTING & REPAIR | |
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ABNORMAL OPEN CIRCUIT VOLTAGE WAVEFORM
C1
0 volts
10Volts | 20ms |
This is NOT the typical voltage wave- form. The output capacitor was dis- connected from the circuit. Note the increased ripple in the waveform. This condition simulates the faulty output filter capacitor. Each vertical division represents 10 volts and that each hor- izontal division represents 20 millisec- onds in time.
Note: Scope probes connect at the machine output terminals. Positive probe to (+) terminal, negative probe to
SCOPE SETTINGS
Volts/Div | 10V/Div. |
Horizontal Sweep ... | 20 ms/Div. |
Coupling | DC |
Trigger | Internal |
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