SSL 4000 G+ — No Return on Channels 1–2 During Record Status

[gollito]

Hi to all friends ..

I’m troubleshooting a strange issue on my SSL 4000 G+. Channels 1–2 record normally and the input signal is present on the meters, but when the console is in Record Status, there is no DAW/tape return on channels 1–2. As soon as I stop recording and go to playback, the return on 1–2 works normally.

I have completely bypassed/cleared the patchbay and reset the relevant routing. I also tested the Pro Tools outputs directly: all output pairs (3–4, 5–6, 7–8, etc.) return correctly to the console, while 1–2 behave differently. However, the physical Pro Tools outputs 1–2 themselves are confirmed to be working, because when I use them during playback the console receives and reproduces the signal normally.

I also tested with Fader Reverse OFF, with exactly the same result. Most importantly, I swapped the channel strip from position 26 into position 1, and the problem remained at physical position 1. The original channel 26 works normally in its own position. So the fault does not appear to follow the channel strip.

At this point I’m wondering whether this could be related to the Record Status / tape-return switching circuitry associated with positions 1–2, rather than the channel modules themselves. My technician has suggested that a status circuit/status chip could potentially be involved. Has anyone experienced a similar fault on a G+ or has any insight into which circuitry I should investigate next?

[horizonsound]

Check the DIP switches on the logic card (6082293) for those channels, that determine the Supercue behaviour.

Compare the positions to a working channel.

Anthony.

[walrus]

@gollito said swapping in a different channel had same problem, so can't be a Logic card switch problem.

Has this just happened and it was OK before??

[Dave Dicson]

Maybe the logic signals from the master section are not getting to the logic card on channels 1 & 2 from the bucket mother boards. Check the gold pins in the blue edge connectors on those mother boards. I have had issues with them in the past. Put a ribbon "bypass" jumper in to by pass the computer. If you replace the 50 way ribbon with a jumper under the faders, that total removes the computer and it's wiring.