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View Full Version : Need help with urei 813 crossovers



trollgurka
11-20-2013, 07:59 AM
I would appreciate a lot if someone on this forum could direct me to a schematic for the urei 813 crossovers. Crossovers has been bypassed by some previous owner. I'm not able to tell which cable goes where.

grumpy
11-20-2013, 08:36 AM
first one:

http://www.jblproservice.com/pdf/vintage%20jbl-urei%20electronics/urei-813.pdf

"B" version:

http://www.jblproservice.com/pdf/Vintage%20JBL-UREI%20Electronics/UREI-813B.pdf

last "C" version:

http://www.jblproservice.com/pdf/UREI%20Time%20Align%20Series/813C-L,R.pdf

trollgurka
11-20-2013, 09:34 AM
Thanks a million, Grumpy! :)

trollgurka
12-01-2013, 04:34 AM
My crossover is a 838. The schematics is for the 840. Any differences?

grumpy
12-01-2013, 05:31 PM
The first pdf is, I believe, for the 838 crossover.

trollgurka
12-02-2013, 07:07 AM
Thank you again for replying, Grumpy. I have had plenty of use for this forum before - it's great to have good people to ask. :-)
My problem is that the 838 crossovers has been bypassed and i suspect some of the components are broken or missing. That is the reason for why I need the schematics, I need to tell what capacitors, resistors etc are supposed to be sitting where. And also, of course, to solder the cables the right way. I might be wrong but I have only found a sketch specifying the components for the 840. Sorry to bother you again.
Thanks

grumpy
12-02-2013, 08:57 AM
Specifically, page 7 of the first pdf I posted... did you find it?

trollgurka
12-02-2013, 11:52 AM
Yes, of course you are right. How could I miss that? :o: Thanks again, bro.