5-4
CP200:
When the CP Type switch is set to position 3 (Auto Digital mode) and the DA20 is
connected to the CP200 using a Cat. No.493 CP200 Auto Digital Interface Card, the DA20
will automatically assert Format 10 when it detects that the CP200 has been set to Formats
01, 04 or 05. This causes the CP200 to be switched to Format 10 and the audio from the
CP200 Processor Unit is replaced with Dolby Digital audio from the DA20. During
reversions or when another Format, such as Non-Sync, is selected, the audio path is
restored between the CP200 Processor Unit and the CP200 Control Unit.
When the CP Type switch is set to position 7 (Auto Digital Disabled), any format other
than Format 10 will allow the analog audio signal to pass from the CP200 Processor Unit
to the CP200 Control Unit despite the presence or absence of digital audio.
CP45/CP65/CP500:
When the CP Type switch is set to position 2 (Auto Digital mode), the DA20 will assert
Format 10 (S4) whenever the DA20 detects that either Format 01 (S0), Format 04 (S1), or
Format 05 (S2) has been asserted and there is valid Dolby Digital audio. The DA20 will
not assert Format 10 automatically unless it detects that the Cinema Crocessor is in one of
these three formats.
When the CP Type switch is set to position 6 (Auto Digital Disabled mode), the DA20 will
not assert any format commands until Format 10 has been selected.
In both Auto Digital and Auto Digital Disabled modes, after Format 10 has been selected,
if the DA20 detects a failure of the digital decoding, then the DA20 will assert Format 05
(S2) and the Cinema Processor will revert to playing the audio from the analog SR track
on the film. When the DA20 detects that valid digital audio is again available, then the
DA20 will again assert Format 10 in either Auto Digital or Auto Digital Disabled modes.
CP55:
When the CP Type switch is set to position 1 (Auto Digital mode), the DA20 will assert
Format 10 (S7) whenever the DA20 detects that either Format 01 (S0), Format 05 (S1), or
Format 04 (S2) has been asserted and there is valid Dolby Digital audio. The DA20 will
not assert Format 10 automatically unless it detects that the Cinema Processor is in one of
these three formats.
When the CP Type switch is set to position 5 (Auto Digital Disabled mode), the DA20 will
not assert any format commands until Format 10 has been selected.
In both Auto Digital and Auto Digital Disabled modes, after Format 10 has been selected,
if the DA20 detects a failure of the digital decoding, then the DA20 will assert Format 05
(S1) and the Cinema Processor will revert to playing audio from the analog SR track on
the film. When the DA20 detects that valid digital audio is again available, then the DA20
will again assert Format 10 in either Auto Digital or Auto Digital Disabled modes.
