XPR needs TLC

Discuss troubleshooting and repair.
xpr-guy
Posts: 8
Joined: Thu Apr 29, 2021 3:31 pm

XPR needs TLC

Post by xpr-guy »

Hello all, I just got an XPR preamp, it was damaged at some point
You do not have the required permissions to view the files attached to this post.
Last edited by xpr-guy on Mon Jun 07, 2021 12:03 am, edited 4 times in total.
xpr-guy
Posts: 8
Joined: Thu Apr 29, 2021 3:31 pm

Re: XPR preamp needs TLC

Post by xpr-guy »

Is there any way to get a schematic for the XPR .. and even the XPRa ?
thanks all...
Last edited by xpr-guy on Sat May 15, 2021 11:34 pm, edited 1 time in total.
User avatar
rbc
Site Admin
Posts: 561
Joined: Sat Nov 23, 2013 10:01 pm
Location: Vicksburg MS, USA

Re: XPR preamp needs TLC

Post by rbc »

Getting schematics is tricky. Some, or maybe all of the IP is owned by Jim Dunlop. There are some authorized Rockman repair technicians. David "SG" Ferringer is the most obvious. I don't know if he would take on the XPR/XPRa systems. The last time I heard of a XPR being repaired, I believe Bob Cedro from Jim Dunlop did the work.
Keep rockman-gearup.com advertising free. Make a contribution: https://paypal.me/rockmangearup/5/
xpr-guy
Posts: 8
Joined: Thu Apr 29, 2021 3:31 pm

Re: XPR preamp needs TLC

Post by xpr-guy »

Thanks for the reply. I really didn't dig further than a guugul search and got these
I guess I am used to finding schematics for all number of amps and just don't consider the IP aspect of things.
xpr-guy
Posts: 8
Joined: Thu Apr 29, 2021 3:31 pm

Re: XPR preamp needs TLC

Post by xpr-guy »

Here are some more shots, the only thing I have found just from looking was the transistor at Q701 was leaning against the resistor next to it, R741 I think it says ?
100_1442.JPG
100_1556.JPG
100_1504.JPG
You do not have the required permissions to view the files attached to this post.
xpr-guy
Posts: 8
Joined: Thu Apr 29, 2021 3:31 pm

Re: XPR preamp needs TLC

Post by xpr-guy »

deleted
Last edited by xpr-guy on Mon Jun 07, 2021 12:05 am, edited 1 time in total.
xpr-guy
Posts: 8
Joined: Thu Apr 29, 2021 3:31 pm

Re: XPR preamp needs TLC

Post by xpr-guy »

it has been sent for repairs