1

AB528 Microphone preamplifier / Re: AB528 DI not working

« on: December 09, 2024, 03:13:02 AM »

So it has been roughly a year since I've had the time to come back and work on this again but I did the 1vac sine and everything passed and no dc. If it is a problem with RLY1 where should I test next? Should I replace RLY 1and RlY2?

2

AB528 Microphone preamplifier / Re: AB528 DI not working

« on: September 13, 2023, 08:40:16 AM »

Hi there, thanks for getting back to me, much appreciated and apologies for late reply!

I just had another look and I do actually hear the sound of the relay clicking. Still not getting any signal from the DI. 
Have tried using a mic and then plugging into DI the mic signal does shut off. 

3

AB528 Microphone preamplifier / AB528 DI not working

« on: August 28, 2023, 03:29:51 PM »

I just finished putting together the AB528 and mic input works fine and seems to be doing what it supposed to. The only problem I have run into is that the DI doesn't seem to work. I can turn it up  full and hear white noise but, no other signal than that. I also don't hear the relay switch click when I insert cable. All of the connector connections on the DI board check out. Any suggestions or troubleshooting I could do? 
Thanks in advance!