Re: New Member Dead 7704

Roger Evans

If you have the flash on power down then the filament and EHT are probably ok. Either the beam is deflected off screen due to a fault in the X or Y amplifiers (check voltages on the deflection plates with a very slow sweep speed and adjusting the vertical position on the plugin, the plate voltages should move symmetrically in opposite directions) or you have a problem in the z axis circuit which can be more tricky to trace without a second scope.



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