Theta Digital Casablanca III, Owner'S Manual

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Digital Out/External Volume Control Wiring Diagrams
With the optional Digital Output Card installed, there are no additional menu features to select from. The card can be
installed in any Analog Out slot in the Casablanca III. However, if it is installed in conjunction with another D/A card
that has front left and right analog outputs on it, the Digital Out card must be positioned in the Analog Out 2 or 3 slot in
order for the Analog Direct and Analog Matrix modes to function.
Figure 114 - Wiring diagram for the Casablanca III Digital Output board and a 2 Channel External
Volume Control unit.
Connect one of the 3
L eft /R ight digital outputs to the input of a two channel external Digital to Analog converter (DAC).
If a two channel External Volume Control (EVC) unit is being utilized, connect the left/right outputs of the DAC to the
corresponding left/right inputs of the two channel EVC. Then connect the left/right outputs of the EVC to the left/right
inputs of the front [left/right] power amp inputs.
Lastly, connect the VOL1 on the Digital output card to the VOLUME jack on the EVC. This allows the master volume
parameter from the Casablanca III to be transmitted to the EVC, thereby controlling the volume from the DAC. All
connections are shown in Figure 114, above.
Figure 115 shows the wiring diagram using one 6 channel EVC. If two EVC’s are being used, connect the VOL2 on
the digital output card to the VOLUME jack on the second EVC. The second EVC must be configured to respond to
channels 7-12. This will be done at the factory. Connect the second EVC to the appropriate channels (Surround
Center/Side Left/Side Right/Sub 1-4) of the digital out card as was done with the first EVC.
In the case where the Digital Output card has the optional analog center channel output installed, connect this output
directly into the center channel power amp input.
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