===== Japanese 21-pin RGB connector =====
The Japanese RGB-21 connector, also known as EIAJ TTC-003 apparently, is identical in appearance to the European [[scart_connector|SCART]] (or Péritel or Euroconnector).  The pinout is completely different however.  There's an RGB<- ->SCART adaptor pinout [[scart2rgb|here]].

=== Simple version ===

{{connectors:con-rgb21.gif}}
^ Pin ^ Description ^ Pin ^ Description ^
|  1 |Left audio  |  2 | NC  |
|  3 |Audio shield  |  4 |NC  |
|  5 |Right audio  |  6 |NC  |
|  7 |Sync shield  |  8 |NC  |
|  9 |Sync  |  10 |NC  |
|  11 |+5v  |  12 |NC  |
|  13 |Red shield  |  14 |NC  |
|  15 |Red  |  16 | 1V*  |
|  17 |Green shield  |  18 |Blue shield  |
|  19 |Green  |  20 |Blue  |
|  21 | Ground  |

  * *connect to pin 11 via 3.3k Ohm resistor.  The resistor isn't usually necessary, and +5v on this pin will most often work.

=== Full Version ===
This version includes every pin, including a few you'll never really need to know.  All labels are display-relative, so input means into the display.  

Most of these pins can be safely ignored for most purposes.  

{{connectors:con-rgb21.gif}}
|  1  | Audio left channel input|  2  | Audio left channel output  |
|  3  | Audio ground  |  4  | Audio ground  |
|  5  | Audio right channel input  |  6  | Audio right channel output  |
|  7  | Video ground  |  8  | Video ground  |
|  9  | CVBS input  |  10  | CVBS output  |
|  11  | AV control input  |  12  | Ym input  |
|  13  | Red signal ground  |  14  | Ground  |
|  15  | Red signal I/O  |  16  | Ys input|
|  17  | Green signal ground  |  18  | Blue signal ground  |
|  19  | Green signal I/O  |  20  | Blue signal I/O  |
|  21  | Plug shield  |

Special Notes:
  * Audio Input: 0.40 mVrms, > 47K ohms
  * Audio Output: 0.40 mVrms, > 10K ohms
  * CVBS (Composite Video) in and out: 1 Vp-p, 75 ohms, sync: negative
  * Ym Input: Switches RGB to half-brightness, for video overlay (L: < 0.4V, H: > 1V, 75 ohms)
  * Ys Input: RGB in/out: (Ground for output, 1V+ for Input (preferred)((A lot of displays won't show RGB at all without Vcc on this line)))
  * All RGB lines: 0.7 Vp-p, 75 ohms

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The detailed version was found on [[http://vhd.co.kr/tech/if/d/d.htm|this Korean page]]