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av:playstation_1_sync [2006/06/20 11:32]
209.184.112.219
av:playstation_1_sync [2019/08/27 20:45]
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-====== PlayStation 1 Sync ====== 
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-The purpose of this page is to show where to find the sync signals from PlayStation 1 motherboards so one does not have to use a sync chip. 
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-Unlike the very complicated PlayStation 2, the PlayStation 1 units are very easy to hack. Still, care must be taken whenever one opens up a game console unit. 
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-The following pictures are from a SCPH-7501 unit (Version unknown) motherboard and a SCPH-101 (Version unknown) motherboard. The Composite Sync "​recipe"​ comes from Viletim!. 
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-Being that this is a Wiki page you are more than welcome to add any information that will improve the quality of information provided here. 
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-{{ av:​largerainbowline.gif }} 
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-{{ av:ps1.jpg }} 
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-===== Standard PlayStation 1 Unit ===== 
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-In the picture below you will see the main chip, the CXD8561, and the video chip, the A2106. You will also see a red rectangle. The sync signals are within this outline. 
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-{{ av:​ps1sync1.jpg }} 
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-The picture below shows exactly where the Horizontal, Vertical, and Composite Sync signals can be found at the top of the motherboard (within the red rectangle). 
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-{{ av:​ps1sync2.jpg }} 
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-However, there is also another, and better, place to acquire the signals and that is underneath the motherboard as shown in the picture below. 
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-{{ av:​ps1sync3.jpg }} 
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-On the Playstation SCPH-5001 you can get the composite sync signal from the Sony CXA1645M encoder (pin 20), which is on the bottom side of the mainboard PCB. 
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-{{ av:​psx_scph5001_compsync.jpg }} 
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-{{ av:​largerainbowline.gif }} 
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-{{ av:​psone.jpg }} 
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-===== Newer PSOne Unit ===== 
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-The smaller PSOne unit uses the exact same chips as in the older model and in the same orientation. So the sync can be easily found and used. 
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-In the picture below you will find where to tap the Horizontal and Vertical Syncs. You will note that there is no Composite Sync to be easily tapped into this time. 
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-{{ av:​psonesync.jpg }} 
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-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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----- 
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-Author and pictures: [[http://​nfg.2y.net/​forum/​index.php?​showuser=171|RARusk]] 
  
 
 av/playstation_1_sync.txt ยท Last modified: 2019/08/27 20:45 (external edit)
 
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