DEC Audio Wiring w/SN-12

[tonyj]

Finally got a chance to wire a DEC4 consolette to my SPS160 this evening and everything works with the exception of the audio, the audio control relay fires when selections are made from the DEC4 and drops out after the last has played.  I connected the 3 audio wires to the SN12 terminals and in looking at some sample speaker configuration diagrams in the manuals, it appears that they show connections from the amplifier output taps to the SN12 consolette audio terminal screws and then ultimately out to the consolettes.  The SN12 terminal screws on my unit have nothing but the consolette wiring per Tony Miller's diagram - I'm thinking that the terminals on the SN12 are basically "junction points" and I still need to add connections up to the amp as well?  The manuals don't have a schematic on the SN12 so I am not 100% positive that those 3 consolette audio terminals are not otherwise wired to anything.  Thanks!

[tonyj]

I believe I figured it out - there are 2 connections on the amp that indicate consolette, so I assume that is where the jumpers need to be to the output taps, and the connections from there go to the SN12 via the wiring harness.

EDIT: That didn't appear to work. In checking continuity from the terminals marked "consolette speakers" on the SHP to the "consolette speakers" terminals on the SN12, there doesn't appear to be a connection between the consolette connections on the amp and consolette connections on the SN12.  In feeding the consolette audio from the amp taps directly it works as it should.  Will have to dig into it more when I have time.  If a schematic or wiring diagram from the SHP to the SN12 exists, it would be helpful.  Thanks!

LAST EDIT (I hope!): Lo and behold in the wiring for the SPS160 internal speakers, someone before me had tucked a green and yellow wire back up into the cable sheathing that I found and those do have connectivity to the SN12 consolette terminals.  Going to connect those to the SHP taps and that should be a wrap! 

[Ron Rich]

Hi Tony,
The "cabinet wiring diagram" is shown in the SPS Service Manual--Ron Rich