Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
av:playstation_1_sync [2010/10/26 12:25]
av:playstation_1_sync [2019/08/27 20:45] (current)
Line 1: Line 1:
 +====== PlayStation 1 Sync ======
 +
 +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.
 +
 +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.
 +
 +The following pictures are from a SCPH-7501 unit (Version unknown) motherboard and a SCPH-101 (Version unknown) motherboard. The Composite Sync circuit comes from Viletim!.
 +
 +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.
 +
 +{{ av:​largerainbowline.gif }}
 +
 +{{ av:ps1.jpg }}
 +
 +
 +===== Standard PlayStation 1 Unit =====
 +
 +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.
 +
 +{{ av:​ps1sync1.jpg }}
 +
 +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).
 +
 +{{ av:​ps1sync2.jpg }}
 +
 +However, there is also another, and better, place to acquire the signals and that is underneath the motherboard as shown in the picture below.
 +
 +{{ av:​ps1sync3.jpg }}
 +
 +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.
 +
 +{{ av:​psx_scph5001_compsync.jpg }}
 +
 +{{ av:​largerainbowline.gif }}
 +
 +{{ av:​psone.jpg }}
 +
 +===== Newer PSOne Unit =====
 +
 +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.
 +
 +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.
 +
 +{{ av:​psonesync.jpg }}
 +
 +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.
 +
 +----
 +
 +Author and pictures: [[http://​nfg.2y.net/​forum/​index.php?​showuser=171|RARusk]]
  
 
 
 
Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Noncommercial-Share Alike 4.0 International
Recent changes RSS feed Driven by DokuWiki