XSYNC-1 to XRGB-3 via custom cable?

[awe444]

I'm contemplating doing a custom cable to take the 8-DIN RGBs + RCA stereo audio output of the XSYNC-1 and feed them into the front RGB21 port of the XRGB-3. The custom cable would (externally) look exactly like this retrogamingcables one for the Neo Geo CD:



except it would have different pin mappings between the ends, namely according to the Micomsoft specs:



Therefore my intended mapping for the custom cable is as follows:

Code: Select all

   (audio left)   RCA white --> JP21-pin 1  (audio left)
  (audio right)    RCA red  --> JP21-pin 5  (audio right)
       (ground) 8-DIN pin 1 --> JP21-pins 3,7,13,17,18,21 (ground)
    (no signal) 8-DIN pin 2 not connected
(AV control 5V) 8-DIN pin 3 --> JP21-pin 11 (AV control 5V)
       (c-sync) 8-DIN pin 4 --> JP21-pin 9  (c-sync)
           (YS) 8-DIN pin 5 --> JP21-pin 16 (YS)
          (red) 8-DIN pin 6 --> JP21-pin 15 (red)
        (green) 8-DIN pin 7 --> JP21-pin 19 (green)
         (blue) 8-DIN pin 8 --> JP21-pin 20 (blue)

My only uncertainty is in regards to the JP21 pins 11 and 16 ('AV control' and 'YS'). Does anyone know whether the XRGB-3 needs these two signals always, only sometimes, or not at all?

Only info I could find on this forum pertaining to this issue was in the following old post:

I remembered that Micomsoft's XSYNC-1 outputs "YS" and "AV Control" on the 8 pin din output connector. I measured the DC voltage from both pins on my XSYNC-1:

http://www.micomsoft.co.jp/sc-500n1_spec.htm

DIN8 Pin 3 "AV Control" measures 4.75VDC
DIN8 Pin 5 "YS" measures 3.00VDC



Googling "EIAJ TTC-003" is all you need to do to find the info. Hence, if you plan on connecting +5VDC when building XRGB/JP21 RGB cables in the future, please use pin 11 (AV Control), and NOT pin 16 (YS).

http://www.control4.com.tw/980512/nh/0208-rca.htm

Ys input (switch for R, G & B signal from/to internal and external,
L: < 0.4, H: > 1.0, 75 ohms)

Any feedback greatly appreciated!

[Fudoh]

You can leave pins 11 and 16 unconnected for use on the XRGB-3.

Why don't you use a DSub15 to DSub15 connection instead ? Just wondering.....

[awe444]

You can leave pins 11 and 16 unconnected for use on the XRGB-3.

Thanks for the info---this makes it a bit easier then.

Why don't you use a DSub15 to DSub15 connection instead ? Just wondering.....

A fair question---I prefer to reserve my XRGB-3's DSUB15 input (D IN 2) for the consoles that output both 240p and 480p (i.e., Wii and PS2) since with that input alone the Low Pass Filter can be left turned on while using 480p without the bad blurring one gets with the other D-terminal inputs. Lacking a DSUB switch, it's therefore more convenient to connect the 240p-only XSYNC-processed systems (Saturn, SNES) through the GAME IN front port, allowing me to use the XRGB's remote control to easily switch inputs and never need to toggle the Low Pass Filter in the menu. If I ever get an XSELECT-D4, I'd use it for all the switching and use it to feed everything thru the XRGB-3's DSUB port.

[RGB32E]

Yes, if you want to make a XSYNC-1 to XRGB-3 Game In cable, you can ignore the XSYNC-1 8MDIN pins 3 and 5, as they do not apply to the XRGB-3 input.

http://micomsoft.co.jp/xrgb-3_spec.htm


未結線 translates to "not connected"

[SuperDeadite]

Micomsoft's 8pin din output is the Japanese MSX standard. Just buy an MSX cable and splice in the RCA sound connectors if you need them.

[XSync-1]

I know this post is kind of old, but I have to ask. Does anyone here know where I can find a Micomsoft XSync-1? Does anyone have one that I can buy?

[kitty666cats]

I know this post is kind of old, but I have to ask. Does anyone here know where I can find a Micomsoft XSync-1? Does anyone have one that I can buy?

Wow, I never knew about those! You could try a SCART2DVI with a DVI-I (or DVI-A) to VGA dongle, perhaps? Or do you need a very specific type of sync?