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Test Pattern Generator
Student: Gabriel Horner
Supervisor: Paul Maley
Mentor: Alain Guy
Goals: To build a test pattern generator and learn
practical skills for building circuits.
Theory
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Electron beam(s) are deflected by vertical and horizontal coils.
 Magnetic coil: Converts voltage signal to magnetic fields to deflect
beams
Additive Primaries and Shadow Mask
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One slot of shadow mask to one triad
Scanning
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Vertical scan frequency, horizontal scan
frequency: 25*625 = 15.625 KHz
Interlaced scanning: reduce bandwidth
TPG Circuit
Clock Signals
Monitor Circuit
What did I learn?
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Circuit design principles
Reinforced analog and digital theory
Testing and debugging circuit
Manual skills: soldering, scraping
copper
Shaping a signal
TPG in Action Hopefully!
Acknowledgements