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TROUBLESHOOTING AND REPAIR |
ABNORMAL OUTPUT VOLTAGE WAVEFORM - MACHINE
LOADED (MAX TAP “G”)
ONE OUTPUT DIODE NOT FUNCTIONING
0 Volts
20.0 V | 5 ms |
MACHINE LOADED TO 180 AMPS AT 16 VDC
SCOPE SETTINGS
This is NOT a typical DC output voltage |
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waveform. One output diode is not func- | Volts/Div | 20V/Div | |
tioning. Note the increased ripple con- |
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tent. One diode was disconnected to | Horizontal Sweep | 5 ms/Div | |
simulate an open or |
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put diode. Each vertical division repre- | Coupling | DC | |
sents 20 volts and each horizontal divi- |
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sion represents 5 milliseconds in time. | Trigger | Internal | |
The machine was loaded with a resis- |
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tance grid bank. |
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NOTE: Scope probes | connected at |
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machine output | terminals: (+) |
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probe to electrode, |
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work. |
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