Nic

So long as you can achieve "Dolby-Level" without cranking gains wide open you should be okay.

I'd ask lj@dolby.com if you need the exact voltage.

The input signal is not "line level". It's probably closer to a turn table level. For exact voltages, ask Lonny or Ken.

------------------
Oscar Neundorfer
Chief Engineer
SMART Devices, Inc.

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All right, maybe my question was not written quite clear. We are talking about a CP-50 (yes, the good old holy CP-50). Now our intension is, to be able to show DVD and TV in our smaller theater. For that reason I am trying to hook up a CP-50 and a DVD-Player or VCR so that the sound is decoded by the CP's Matrix. My problem is, that I don't know the operating level of the Proj1&2 inputs. So I thought I could transform the DVD line out level to a lower level which can be used of the CP-50. But maybe I am wrong, cause lately I got another idea. As far as I studied the internal card array of the CP-50 I saw that the Cat108 is a "simple" preamplifier which amplifies the signal of the solar cells to 300mV operating level for the further cards. So why should I transform a signal, just to amplify it later ? Shouldn't there be a possibility to connect the DVD lineout-Signals to the CP-50 AFTER the Preamplifier-Card and the Noise Reduction Cards ??? I don't think I need a Noise Reduction in combination with a DVD Player ;-). Does anybody know, which pins on the Cat-Cards are used to transfer the Signal from card to card ??? If I knew that, I think I could connect the DVD-Lineout just with the right pin after the Noise Reduction cards. And that would be my solution. The DVD signal should be sent trough the matrix and EQ-Cards :-) !!! What do you think, could that work or will I toast my sound equipment ???

Thanks for your opinions in advance

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I think you got the solution for my problem :-) ! Unfortunately I don't know exactly what the "SA2 teriminal block" is ? The link card is the Cat110, right ? I hope you can describe, where exactly I have to feed in the Right and Left Lineout signals of my DVD-Player (all 4 wires), because it's not so easy for me to understand all the tech stuff written in english.

Thanks for your patience and good night.

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OK I think we're getting close to the solution! Just one more question and you shall be released ;-). Actually there's a Cat110L card installed. So that should work fine. But I still quite don't understand exactly the term "terminal block." Do you mean the connectors on the back of the CP-50 ? As far as I understand your explanations and the internal diagramms (see fig 9.7.1 in the manual), I have to feed the DVD left and right signal to the connectors labeled "output to surround adaptor (only left/right)" and then, the stereo signal should be decoded by "the matrix" (always sounds a bit strange since the film ;-). And to make sure, that the Preamp- and Noise Reduction cards are not damaged, the 110L has to be taken out, and sound should be then on by selecting format 05 (future format) ?!?

Ok I hope I got it now !!! Thank you for your support. It's always great to solve a problem with the help of this forum. I have to propose my manager, that we install a PC in each booth to check film-tech all day ;-) !!!

Hava a nice day !

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