Re: Sharp TRP801
News Flash! The line oscillator is functioning on both standards.
The CRT and line output transistor removed in order to carry out initial tests.
Power supplier set to 12volts and connected to the full-wave rectifier diodes. Oscilloscope connected to the base wire of the line output transistor. The attachments show the base drive waveforms on 625 and 819 lines.
The frame oscillator is working but there is no waveform present at the collector of the output transistor.
DFWB.
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