rob aylestone
Moderator
Yup! Dry joints!
Yep, all of the above settings work as they should on channel 7, that is only after gently moving the card back and forth until I’m getting output, as per my video. Basically the channel itself seems to be working fine, but there must be a shorting of the connection or dry joint somewhere that I just can’t locate. Between the channel card and the way it’s wired to the outputs, I guess. I don’t think it’s coming from any part on the channel. The IC pins have not been bent. I’ve swapped the u709 on channel 7 with the u709 on channel 8, I’ve also tried putting a new T.I 741 in place of the 709, which did not make any difference whatsoever.FOLDBACK - MONITOR: sources LINE input pre EQ pre channel fader
FOLDBACK - MIX: sources channel input post EQ pre channel fader
ECHO - MONITOR: sources LINE input pre EQ pre channel fader
ECHO - MIX: sources channel input post EQ post fader
Can you confirm the above, each detail, is how your console channels’ auxiliary busses function? AND confirm they work in all modes on channel 7
Okay on sockets…are you sure you didn’t bend a pin putting IC3 in on channel 7? Also, there are good quality sockets and not as good quality sockets. You said you swapped the stock u709 back in and it still didn’t work. Maybe you do have a bad solder joint or bad contacts on the socket. But I also want to know what opamps are you swapping in?
No, don’t just give the opamp a a try. Love with the stock configuration first and determine if there are limitations you can reasonably deduce would be resolve with a change. That is the only reason to change opamps. You have to be skilled with an oscilloscope to “tune” the 741 and 709 replacements. Do not just throw parts at it. That’s how you get into trouble. If you decide you want to mess with that you find yourself an experienced tech or you learn how to do it yourself and obtain the proper gear to do it.Haha I’m sure you have more than enough on your plate, on that forum only !! I will post pics first thing tomorrow (it’s almost 10pm here). Thanks a lot for the tips regarding the op amps ! I will definitely give those a try, why not !