VERY strange.dudeitsree said:I ended up cutting the trace and terminated it directly from the XLR to the edge connector, the Pin 2 pad on the PCB was shorted to ground somehow, weird.
We always check the DC voltages before loading modules. Once those are verified we use a preamp or something to test each slot.Blondino said:Hi there...
I just build a 511 VPR, I was wondering if there is any checking guide somewhere beforeI load any rack and having trouble!
there is also a way to check if each rack space work properly?
jsteiger said:We always check the DC voltages before loading modules. Once those are verified we use a preamp or something to test each slot.
It will be fine. The main supply voltages are on a continuous PCB trace so that slot's supply voltage will be the same as all the rest. A direct short for a split second is not desirable but not the end of the world either.Blondino said:Ok I did it, each channel gave me between 15.5/16.5 VDC on pin 12 and same numbers but negative on pin 14.
I did it putting the common on pin 13 then switching the other cable on 12 or 14. I'm not sure if is the best way to do it but those thing freak me out. In fact I accidentally touch for an instant 13 and 14 on channel 4 and saw a little sparkle :-\. Then I checked the value and seems fine. I will wait before loading something on that channel ;D.
As Volker has pointed out, the Radial is NOT compatible. They do not follow the standard API VPR protocol. I have the DC pinout screen printed on the back of the rack where the DC plugs in. Maybe you missed that?Homestudio said:Hey Jeff, I just finished up the building the CAPI 511-VPR XLR Filtered Rack. Started testing with my friends Radial Workhorse ps. It's the same model #. I'm not getting power to the modules and before I start troubleshooting I'd like to know if this ps from Radial is compatible. Pin 1 com, 2 +48v, 3 -16v, 4 com, 5 +16v.
I'm getting oscillating voltage on rack pin 12, no voltage on pins 14&15.
I recently got the db25 kit and I put it together last night but it doesn't appear to be working right
I have a pair of diyre colour modules in there and the lights on them just slowly pulse and I don't get any signal. The power supply's blue light comes is on until I plug it into the rack at which point it goes off
I have got a video I can show you but I'm not sure how to post it
Can anyone help?
Brinporter said:I’ve been having the same issue, except that mine was working for 5 months before it started doing this. The PSU reads properly when not plugged in to the rack, but when it is, pin 3 fluctuates between 1.2 to 1.7v and pin 4 fluctuates between -5.1 to - 5.5v. I’ve checked that all the caps are the right way (even though that was probably redundant seeing as it worked). I’ve tried with and without modules installed. Was anyone ever able to solve this issue?