Topic: QU32 no power | Allen & Heath Digital Community

QU32 no power

Tagged: dead, No power

This topic contains 6 replies, has 4 voices, and was last updated by IanK 3 months, 2 weeks ago.

Viewing 7 posts - 1 through 7 (of 7 total)

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2022/05/30 at 4:01 am #107360

halothane666
Participant

Hello all,

I picked up a used QU32 about a year ago, and tonight during band rehearsal, the console made a squealing noise and then sounded like what was a sample rate mismatch and suddenly shut off. The console won’t power back on and the power LED in the back does not illuminate. The console is connected to a power conditioner; I tried plugging it straight into the wall as well as replacing the fuse but still nothing. I’m hoping it’s just something stupid but I’m also worried that this could amount to a major repair. Does anyone have any advice?

2022/05/30 at 6:10 pm #107375

halothane666
Participant

Just an update, I was able to get the console to power on today but I’m not getting any input signal on the meters or output. I’ve tried about 10 different known good mics and a whole bunch of known good cables. The power LED in the back is not illuminating so I suspect the power supply is dead or dying. As the console is well out of warranty and I’m mechanically and electronically inclined, I have no issue opening it up and replacing the part myself but I can’t find it anywhere.

2022/05/31 at 6:35 am #107386

Giga
Participant

Bummer, that’s a s****y situation… Have you also tried it through A&H or one of their dealers/servicecentres ?

Good luck !

Giga

2022/05/31 at 12:04 pm #107390

Mike C
Participant

If complete power supply modules are not available any time soon and you are comfortable
with electronic repair re capping the power supply may take of the problem. Replacing the
electrolytics may take care of it.

2022/05/31 at 12:09 pm #107391

halothane666
Participant

@giga the distributor hasn’t been open due to the holiday weekend in the US but I will give them a ring when they open later today!

@mike C do you happen to know what the values of the caps are? If I have to go this route I’d like to try and make it a one-and-done thing so I don’t have to disassemble and reassemble more than once.

Thank you!

2022/05/31 at 12:46 pm #107392

Mike C
Participant

Sorry I don’t know the cap values and a quick search did not find a schematic.

2024/01/08 at 3:51 am #118179

IanK
Participant

I have a similar problem, were you able to work it out?
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