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av:playstation_2_rgb_sync [2006/01/24 16:27] – 66.90.200.118av:playstation_2_rgb_sync [2006/02/03 16:25] – 66.90.202.106
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 In addition, the sync signals may need to be buffered (using a 74hc244 chip) depending on the monitor being used. In addition, the sync signals may need to be buffered (using a 74hc244 chip) depending on the monitor being used.
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 ===== The Sync Mixing Chip ===== ===== The Sync Mixing Chip =====
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 If you follow either of the two sync signals you will eventually come to this small chip. This is where the two sync signals become Composite Sync. If you need Composite Sync it is not recommended you get it from here because of the MacroVision copy protection signal which also gets mixed in when needed. If you follow either of the two sync signals you will eventually come to this small chip. This is where the two sync signals become Composite Sync. If you need Composite Sync it is not recommended you get it from here because of the MacroVision copy protection signal which also gets mixed in when needed.
  
-It may actually be possible to find which of these remaining traces to this chip is the MacroVision signals then cut the traces to permanently disbale it by preventing it from reaching the mixing chip.+It may actually be possible to find which of these remaining traces to this chip is the MacroVision signals then cut the traces to permanently disable it by preventing it from reaching the mixing chip.
  
 You can make your own Composite Sync signal with two very simple components. First, run the Horizontal Sync through a 1N4148 diode (very common - can be found at Radio Shack). Second, run the Vertical Sync through a 820 Ohm resistor. Once the two signals have been conditioned this way then you can simply splice them together. You can make your own Composite Sync signal with two very simple components. First, run the Horizontal Sync through a 1N4148 diode (very common - can be found at Radio Shack). Second, run the Vertical Sync through a 820 Ohm resistor. Once the two signals have been conditioned this way then you can simply splice them together.
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 {{ av:ps50000.jpg }} {{ av:ps50000.jpg }}
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 ===== Theory of RGB Operation (SCPH-50000 unit) ===== ===== Theory of RGB Operation (SCPH-50000 unit) =====
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 In this model Sony did some major revisioning. They removed the Firewire port, quieted down the fan and DVD drive, and added Progressive Scan DVD playback. In this model Sony did some major revisioning. They removed the Firewire port, quieted down the fan and DVD drive, and added Progressive Scan DVD playback.
  
-Unfortunately, they also comlpletely redid how the video is done. They went to an all digital format which means that you cannot intercept the RGB signals coming from the GS chip like you could do on the SCPH-30000 units. All of the digital RGB signals go from the GS chip to a new chip: the CXM-4000. This is a Digital to Analog conversion chip (DAC) which converts all of the digital RGB signals to all of the other video formats.+Unfortunately, they also completely redid how the video is done. They went to an all digital format which means that you cannot intercept the RGB signals coming from the GS chip like you could do on the SCPH-30000 units. All of the digital RGB signals go from the GS chip to a new chip: the CXM-4000. This is a Digital to Analog conversion chip (DAC) which converts all of the digital RGB signals to all of the other video formats.
  
 Worse, I could not even find stable sync from this style of motherboard. Worse, I could not even find stable sync from this style of motherboard.
av/playstation_2_rgb_sync.txt · Last modified: 2019/08/27 20:45 by 127.0.0.1