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TROUBLESHOOTING & REPAIR | ||
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TYPICAL SCR GATE VOLTAGE WAVEFORM
CONSTANT VOLTAGE INNERSHIELD
MAXIMUM OUTPUT SETTING - NO LOAD
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This is the typical SCR gate pulse volt- age waveform. The machine was in an open circuit condition (no load) and operating properly. Note that each verti- cal division represents 1 volt and that each horizontal division represents 5 milliseconds in time.
Note: Scope probes connected at SCR
gate and cathode: (+) probe to gate,
SCOPE SETTINGS
Volts/Div. . . . . . . . . . . . . . 1 V/Div. Horizontal Sweep . . . . . .5 ms/Div. Coupling . . . . . . . . . . . . . . . . . DC Trigger . . . . . . . . . . . . . . . Internal
