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More info to follow. | More info to follow. | ||
==High Voltage CRT Circuit== | |||
As with most 400 series scopes, the high voltage circuits decay over time. It will mainly be the non-ceramic axial capacitors that go bad. | |||
This is indicated by a crackling constant arcing noise that can be triggered with the varying of intensity control knob. | |||
Replacement capacitors are available on Digikey and Mouser. However, they will usually be available only in large bulk amounts so sourcing components may carry difficulties. | |||
==General Troubleshooting== | ==General Troubleshooting== | ||