Snoozr Posted May 15, 2008 Report Posted May 15, 2008 I learned of Neutrik audio jacks on the SID-NUXX site. The jacks have 6 pins whereas the SID PCB only has + and a - jumpers. It is a stereo jack but not sure why there are 6 pins instead of 4. Anyway, for now I just want to go mono and maybe deal with stereo later. So in absence of information, I thought I would use logic (uh - make that "noob logic").What I was thinking of doing is running a regular 1/4 inch mono cable out of a Roland into the jack. Play Twinkle, Twinkle Little Star via Ye Olde Sequencer or something. Then I would test the pins with a multimeter to see which is testing positive and negative for the Twinkle signal. After that, when wiring the Neutrik to the board, I would wire the *positive* pin to the negative jumper on the PCB and the negative pin to the positive jumper on the PCB. The reason being is that when testing with the Roland, I would be sending audio *into* the jack, whereas when the jack is connected to the PCB, I would send the SID's audio out of the jack (requiring a reversal of roles).Does this sound right to anyone - or am I cruising for an oozing (of SID components)?I looked at the datasheet (below). However, there is no positive and negative listing of pins on here so it was not informative. I also searched the forum for Neutrik to no avail...http://www.neutrik.com/content/products/detail.aspx?id=210_980737404&catId=CatMSDE_audio/Thanks! Quote
doc Posted May 15, 2008 Report Posted May 15, 2008 The pinnig of the NYS jack is:(topview) |- -| + |- -| - |- -| G (O) Thats the normal pinning for a symetric signal. If it is used as a Stereo Out (like in the SID), + and - are the two channels.The three pins on the opposite side are "switched contacts. They are closed if no jack is inserted and they are opened if you insert a jack into it.So if you put a mono cable in the jack you have a short between G and - . (In fact you are shorting one SID in your case, which makes this sid useless ...)greetsDoc Quote
Snoozr Posted May 21, 2008 Author Report Posted May 21, 2008 Awesome - thanks so much!!! ;D ;D ;D Quote
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