NEVE 8108 need help

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one standard response would be the guys at  81series.com

but you will have to motivate them, and that is not always easy.

that's probably true of any good tech that has that info.
if they know how to fix old neves, they're really freakin' busy.

what info you need? the only info i can get to is the 8248/8128 modules.
main module connector is different, but i think the mic pre, filter, eq, etc.
have the same pin outs for the small ribbons.

repair or racking?
 
QUEEF BAG said:
one standard response would be the guys at   81series.com

but you will have to motivate them, and that is not always easy.

that's probably true of any good tech that has that info.
if they know how to fix old neves, they're really freakin' busy.

what info you need? the only info i can get to is the 8248/8128 modules.
main module connector is different, but i think the mic pre, filter, eq, etc.
have the same pin outs for the small ribbons.

repair or racking?
I would like to disconnect it, I only use the MIC PRE filter and EQ.


This is a 40-pin to pin, you know how to connect the power supply to it?


Thank you!

711777853.jpg

711396847.jpg
 
HI,

I've just been given a few Neve 8128 modules that I'd like to rack.
I know that the supply is +/- 22V unregulated to each channel (local regulation on channel strip).
There is a big 50 pin connector and a big coaxial cable ( 0V ).

I would like to use the micpre+filter+EQ of the channel only, but I don't know the pinouts to power the channel and to connect to outside world.

Any infos would be greatly appreciated, and please don't tell me to go to www.81series.com
Those guys don't even answer to mails  :(

 
How is labeled the connector and the board it is on? If CONN1 it could be:
+22V ST2/3+ST2/4
-22V ST2/11+ST2/12
0V ST2/7+ST2/8

Regards, M.
 
Ok, finally I had some time to test one 8128 channel that i've got.

I connected the module like bookkeeper said on my lab psu.
I took the output of the EQ at pin 13 of the EQ "flexstrip", everything's sound nice, and I must say it sound pretty nice.
Those module have a bad reputation, I don't understand why !

Ok, one problem is that the onboard 7818 and 7918 don't regulate. The 7815 regulate well, strange.
I have set up my lab psu in serie mode with the left + and right - connected together as the 0V (apparently those rails are floating, I didn't connected the lab psu ground to the 0V).
What did I do wrong ? Those modules are supposed to be fed by +/- 22v unregulated supply, I had to limit my lab psu to +/- 18V because when I go higher the output of the onboard regulators follow the lab psu voltage (minus a small volatge drop) and don't regulate the incoming voltage.

Any suggestions are welcome.
 
flaheu said:
What did I do wrong ? Those modules are supposed to be fed by +/- 22v unregulated supply, I had to limit my lab psu to +/- 18V because when I go higher the output of the onboard regulators follow the lab psu voltage (minus a small volatge drop) and don't regulate the incoming voltage.

You need at least 3 volts over the regulated voltage in order for the regulators to do their job. I suspect that you didn't take your regulated supply high enough for that to happen.

Regards,
Mark
 
Biasrocks said:
flaheu said:
What did I do wrong ? Those modules are supposed to be fed by +/- 22v unregulated supply, I had to limit my lab psu to +/- 18V because when I go higher the output of the onboard regulators follow the lab psu voltage (minus a small volatge drop) and don't regulate the incoming voltage.

You need at least 3 volts over the regulated voltage in order for the regulators to do their job. I suspect that you didn't take your regulated supply high enough for that to happen.

Regards,
Mark

I agree, with Mark, you need MIN 3 volts minimum over the regulated voltage.
I've finish the racking of my pair of 8108 this summer, this channel strips sound realy good.
I used the fabio PSU to feed two channels and a summing board so +/-24v, +48 and +5v for the relays and the leds.
PM me your email, i have the schematics of the pream/filter/eq it can be usefull for do the job.

Cheers
Cyril
 
I agree, with Mark, you need MIN 3 volts minimum over the regulated voltage.
I've finish the racking of my pair of 8108 this summer, this channel strips sound realy good.
I used the fabio PSU to feed two channels and a summing board so +/-24v, +48 and +5v for the relays and the leds.
PM me your email, i have the schematics of the pream/filter/eq it can be usefull for do the job.

Cheers
Cyril
I'm a little late to the party so I hope this gets seen. I'm starting the exact same project and I would be very appreciative of the same resources. I'm a new member so I also need a pm from you
 

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