Search found 3 matches

by onday
Wed Jan 07, 2015 6:15 pm
Forum: JLM Audio Kits
Topic: 1290 Build Thread
Replies: 98
Views: 303543

Re: 1290 Build Thread

I have found the solution :) I pulled out one leg of each 6k8 for IN+ and IN- and found that there is a short on pin 5 and IN- (!!!) On the IN- terminal solder joint, there was a little solder which had bridged over the pad edge onto the rest of the pcb (See pic). I cleaned the joint and made it sma...
by onday
Mon Jan 05, 2015 7:10 pm
Forum: JLM Audio Kits
Topic: 1290 Build Thread
Replies: 98
Views: 303543

Re: 1290 Build Thread

I haven't had the chance yet to take photos in decent lighting - will do that now. Also, here are some voltages taken from the IDC socket on GB+ w/ 48v ON (0v on board as reference) Working GB+: PIN VOLTS 9 - 47.5 7 - 47.5 5 - 47.5 3 - 47.5 1 - 47.5 2 - 0 4 - 0 6 - 0 8 - 0 10 - 0 Problem Child has i...
by onday
Sun Jan 04, 2015 2:05 pm
Forum: JLM Audio Kits
Topic: 1290 Build Thread
Replies: 98
Views: 303543

Re: 1290 Build Thread

Got the kit and final parts on friday - Thanks Joe! I have everything built and wired up for the 2ch 1290 rack. Initial testing looks ok, 24v out on each TREX kit with & without1290 connected, 48V on yellow wire. However, I have an issue with one of the Go Between Plus boards: I can't see 48V on XLR...