The purpose of R4 is to limit the current to the bulk capacitor (the big one in the middle) when the unit is turned on. The measured cold value of this resistor in my X32 is 10 Ohm. I received multiple messages from people who had to replace the R4 NTC resistor. Preferably, Low ESR capacitors should be used. The table below lists all their values and quantities: Quantity It's hard to see in the picture, but the capacitors inside the blue circle started leaking.Īt this point, I would recommend replacing all the electrolytic capacitors. This time some of the 1000♟ / 25V output capacitors failed. Unfortunately, the issues started to appear again. Three years have passed since I originally wrote this article. If this article was helpful to you, you can support this website via a one-time donation using the following button: So the voltages are still a bit (10%) too low, but much better than before.Īfter thinking about that, I decided to give it a try and tested the PSU together with the rest of the X32.Īnd it worked. In this case, it was a 47♟ / 35V.Īfter replacing the capacitor, the output voltages were as follow: This leads to a decreased output voltage or prevents the PSU from turning properly on at all.Īfter locating this capacitor, I replaced it with a new one. This is helpful because now I know what the voltages going to the processor board should be.Īs far as I know, the voltages should be as follow:īecause the voltages are all low by about 30%, the problem is likely caused by the feedback loop for the control circuit of the flyback converter.Ī common issue with this type of power supply is the degradation over time of an electrolytic capacitor in the control circuit of the PSU. Although the PSU in the rack version seems to be different, the processor board is the same.
#Behringer x32 usb pcb manual#
To take it out, four screws have to be removed.īefore starting the repair, I tried to find a service manual for the Behringer X32 Rack, but I could only find one for the regular Behringer X32 mixing console. Inside the Behringer X32 Rack, the PSU is on a separate PCB in the right front. So I ignored the issue until yesterday when the unit seemed to be completely dead.īecause the unit was working correctly after a successful booting process, I suspected a power sequencing problem at first. By turning the unit off and on again a couple of times, it would boot properly after some time. Mains Voltage can kill you! I am not responsible if you hurt yourself or others.įor a couple of months now, my Behringer X32 had some booting issues. Please be careful when working with Mains Voltage. The system also has an integrated expansion port that ships with a 32 x 32 XUF FireWire/USB audio card installed.Replicating the content of this article could be potentially dangerous.
The mixer also has a pair of AES50 ports that feature Klark Teknik SuperMAC networking capability for use with 48-channel digital snakes for ultra-low jitter and latency. The talkback section allows you to communicate with the integrated mic or an external mic. The mixer has 16 analog XLR outputs, as well as 6 balanced -level 1/4' Aux inputs and outputs, and two 1/4' headphone jacks. The Main LCR (left, center, right) channels, 16 mix busses, and 6 independent matrix mix busses all have 6-band parametric EQs and integrated dynamics processing for excellent sonic tailoring capabilities. The mixer features 16 fully programmable MIDAS-designed mic preamps.
#Behringer x32 usb pcb professional#
The X32 Compact 40-Channel, 25-Bus Digital Mixing Console from Behringer provides a wealth of features in a compact design, ideal for professional live and recording applications. 32x32 FireWire/USB Audio Interface Card.
48-Channel Digital Snake Ready via AES50.16 Programmable MIDAS Microphone Preamps.
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