Mitsubishi Electric VS-45605 Technical Training Manual page 53

Dynamic Beam Formation Key Points
• The DBF circuitry improves edge focus.
• A parabolic waveform from the Convergence Waveform Generator is amplified and added to the
focus voltage in the Focus VR Block.
• The DC Supply for the DBF Output stage, Q5K00, is derived by rectifying the large pulses from the
Horizontal Output transistor.
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