Hello! Sorry for my delay. I've been working on a few projects - digging into this console being among them. Learning a lot. Got my signal flow understanding going a little better. I'm currently learning what was true in the listing I found and what is not. For example, the seller described the 8th channel as non-functional, but so far everything is working great on channel 8. Weird. However, 5 of my channels do not pass audio. 13, 14, 18, 19, 20. I have tried inputs on mic, line, and tape, to varying degrees of success. On 13, it works on tape but not mic or line. On 20, it works line but not mic or tape. One, can't remember which, the audio is audible but extremely quiet and scratchy. What can I do to troubleshoot and/or fix these channels? Jumpers are installed on all channels and on all busses. Is there any other place I should put jumpers? I don't believe there is based on looking at the back and reading the manual.
One other question. I have read the manuals a couple of times, but it is somewhat difficult for me to understand so forgive me for missing any pertinent information - I am planning to dig deep on these manuals in the next couple of days. Anyways, what is the last jack below the send jack on the input section? It is not marked besides a line that draws from the send to the jack. Is that something I also need to plug a jumper into?
Thanks!