Good point... the only "everything else" I was referring to was the 48V Phantom rail and everything on the automation supply. Not much of an everything....
510
dhhaudio
Jan 1, 2008 8:11 pm
Tom, I am getting 6.8v across the board and I understand that is too low. there are some notes in the manual that say the voltage should be 7+ but, it does not...
511
Tom Graefe
consoledewd
Jan 1, 2008 9:19 pm
Well that stinks. Good luck with the repair. Unplug the power supply and remove the top to see if you can anything obvious. Tom ... Good point... the only...
512
Tom Graefe
consoledewd
Jan 1, 2008 9:25 pm
Dave, The 5 volts is really NOT 5V on the automation. No sense lines on the supply. The regulators work better on each fader is there is 7-7.5V DC on both ends...
513
dhhaudio
Jan 1, 2008 11:11 pm
I had the same problem when I first got my desk, it was one resistor buried in the audio supply (look under things) it turned out to be a bad output device, I...
514
dhhaudio
Jan 1, 2008 11:15 pm
Tom, thanks for the help, found the low voltage problem and I'm up to 7.5v across the board. but, things are still locked up. any other ideas? thanks again for...
515
rbreen
mxp_owner
Jan 1, 2008 11:41 pm
Hi Tom, I didn't see anything obvious... which is why I'm leaning towards the thermistors on the heat sinks. I'll try that first and see if it brings ...
516
Tom Graefe
consoledewd
Jan 2, 2008 12:02 am
Dave, I believe Jeff's idea of a communication problem may be the problem. Have you checked the connector on the CMB and the RS232 connector on the Status...
517
Tom Graefe
consoledewd
Jan 2, 2008 12:09 am
Bob, Have you checked to see if voltage is on the Collectors of the Pass transistors with a VOM? The collector is the big Shiny Top Hat looking part sticking...
518
Tom Graefe
consoledewd
Jan 2, 2008 12:13 am
BTW a surge will not blow the transistors as the power supply is protected by a Corcom Filter. It also has over voltage and over current protection. Perhaps...
519
Jeff Chestek
engjch13
Jan 2, 2008 12:13 am
I second that, the fuse holder do go bad, I've had to replace them as well. Jeff...
520
Tom Graefe
consoledewd
Jan 2, 2008 12:22 am
Dave, If you want to go the route of replacement I have a compete Option 3010, which is the automation upgrade kit. It has the FBP, HPB, CMB and the complete...
521
dhhaudio
Jan 2, 2008 3:30 pm
Tom, I checked all the connections on the CMB and the status board and everything seems fine. the faders go through startup/self test then stay locked in mute,...
522
Tom Graefe
consoledewd
Jan 2, 2008 8:37 pm
Dave, You definitly have a Comm problem between the Status Display and the CMB. Probably the RS232 driver. You may also have a FBP problem. Make sure the...
523
laznospaz
Jan 4, 2008 1:26 am
Hello all, I just found this group a few days ago and hope it was a good find! I'm involved with trying to get an MXP-3036 up and running. It was packed up and...
524
laznospaz
Jan 4, 2008 1:27 am
Hello all, I just found this group a few days ago and hope it was a good find! I'm involved with trying to get an MXP-3036 up and running. It was packed up and...
525
Jeff Chestek
engjch13
Jan 4, 2008 5:23 am
It's not too tough to figure out. The power supply should have labels showing the pinout with voltages for both connectors. You can use an ohmmeter on the...
526
Tom Graefe
consoledewd
Jan 4, 2008 5:49 am
Jeff and Larry, The color codes NEVER changed on any of the consoles. BUT be very careful, there are several ground wires that are WHITE and MUST be put on...
527
Larry Purvis
laznospaz
Jan 5, 2008 12:25 am
Tom & Jeff, Thanks for the quick responses. Yes, I've ohmed out most of the wires and feel *fairly* confident that I know where most wires go, but as you said...
528
Tom Graefe
consoledewd
Jan 5, 2008 12:34 am
Larry. The Peripheral Ground goes with the 24V. The Audio Ground goes with the +/- 18 V. The +48? I think goes with the Audio Ground. Remember the ground...
529
Jeff Chestek
engjch13
Jan 5, 2008 6:12 am
OK, I checked my 3036 console, and one cable connects to the barrier strips labeled: +48V (Blue) +24V (Yellow, and Yellow/Black stripe) Chassis Ground (Green,...
530
Tom Graefe
consoledewd
Jan 5, 2008 9:09 pm
Jeff, Yes it seems correct as the other White wire is the +48V Phamtom Ground which must go to Audio Ground for the Mic's to work correctly. Nice info. The...
531
rbreen
mxp_owner
Jan 6, 2008 3:37 pm
Hi Tom, Thank you for the suggestions... I came down with a serious flu bug over the holidays and I'm just getting back to looking at it now. We didn't have...
532
rbreen
mxp_owner
Jan 6, 2008 3:41 pm
Actually I looked it up on my own... sorry, that was too general a question. We did smell that burned out resistor smoke when the PSU went down.... is that...
533
laznospaz
Jan 6, 2008 9:02 pm
Mucho Thanks guys. I had all the wires right except one, a white wire that I thought would go on peripheral ground should have been on audio ground. I powered...
534
Tom Graefe
consoledewd
Jan 6, 2008 9:28 pm
Possibly. You would see char around the suspect SCR. They are on the regulator board. If the SCR blew, It probably means there is a short in the console? Tom ...
535
Tom Graefe
consoledewd
Jan 6, 2008 9:28 pm
Possibly. You would see char around the suspect SCR. They are on the regulator board. If the SCR blew, It probably means there is a short in the console? Tom ...
536
Tom Graefe
consoledewd
Jan 6, 2008 9:37 pm
Larry, I was the Manager of the Console Engineering department at MCI/Sony. I worked there 18 years. The MXP-3000 was one of my main projects in the 1980's....
537
Jeff Chestek
engjch13
Jan 7, 2008 4:09 am
... If you decide to replace the bulbs, do them ALL. Don't just replace the burned out ones. The ones you don't replace will be failing soon enough...(ask me...
538
Jeff Chestek
engjch13
Jan 7, 2008 4:19 am
... Very cool! Do you have pictures you can post in the "Photos" area? How did you end up with it, are there more than just the one? ... Don't be modest!! ...
