New Copygard Remover
Playback Problems -
Playback Problem Letters
Sony Copyguard remover IC in Sony VCRs-
The Waveform
Vertical Interval With added pulses
Standard Sample-
VSA-
Photos: PCB Bottom PCB Top Open
PCB board board Parts Hole Sizes
Schematic: Schematic
Waveforms
RX-
Photos: Cabnet PCB top PCB Bottom
Earlier Patents Dolby, Okada(Japan), Goodell,
