===== Japanese RGB-15 Connector =====
This connector is the standard for many pre-DOS/V (IBM compatible) computers in Japan.  The PC-9801, X68000 and FM Towns all used this pinout, or similar variants of it.  **Pay attention to the differences, they are important!**


==== X68000 ====
{{http://www.gamesx.com/grafx/db15.gif}}

^Pin^Function^Pin^Function^
|  1  |Red  |  9  |NC  |
|  2  |Ground  |  10  |Audio L  |
|  3  |Green  |  11  |Audio R  |
|  4  |Ground  |  12  |Ground  |
|  5  |Blue  |  13  |NC  |
|  6  |Ground  |  14  |H-Sync  |
|  7  |Ys  |  15  |V-Sync  |
|  8  |Ground  |||

  * Ys = computer data present.  Usually +5V

==== PC 9801 ====
The PC-9801 connector is nearly the same as the X68000.  The differences are very minor: pins 9 and 13 are used for the 9801, but are not connected on the X68000.

{{http://www.gamesx.com/grafx/db15.gif}}

^Pin^Function^Pin^Function^
|  1  |Red  |  9  |Ys  |
|  2  |Ground  |  10  |AV Control  |
|  3  |Green  |  11  |Mode  |
|  4  |Ground  |  12  |Ground  |
|  5  |Blue  |  13  |Dot Clock  |
|  6  |Ground  |  14  |H-Sync  |
|  7  |Ys  |  15  |V-Sync  |
|  8  |Ground  |||

  * Ys = computer data present.  Usually +5V

==== FM Towns ====
{{http://www.gamesx.com/grafx/db15.gif}}

^Pin^Function^Pin^Function^
|  1  |Red  |  9  |Ys  |
|  2  |Ground  |  10  |AV Control  |
|  3  |Green  |  11  |Mode  |
|  4  |Ground  |  12  |Ground  |
|  5  |Blue  |  13  |Dot Clock  |
|  6  |Ground  |  14  |H-Sync  |
|  7  |C-Sync  |  15  |V-Sync  |
|  8  |Ground  |||

  * Note that some FMTowns systems used a VGA connector.
  * Ys = computer data present.  Usually +5V



==== CAVEATS ====
  * Not all systems put out power on pin 7.  Normally +5v, some devices (like the X-RGB2) leave this pin disconnected.  You can add power to your cables, for monitors that require it, following [[adding_5v_to_scart_lead|these directions]].
  * Remember that the pin numbers are almost always found on the connector itself.

----
**Credit:**
  * Some of this info came from [[http://hp.vector.co.jp/authors/VA018718/towns/connect/pinasgn.htm|this Japanese page]].