4DFP-3000
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5.5 Play a B&W pink noise loop and set the slit loss EQ frequency
for L and R.
Repeat 5.4, 5.5, and 5.6 for the second projector of a
changeover installation. ....................................................................... 5-4
6. Align the B-Chain. ...................................................................................... 6-1
6.1 Connect your laptop to the Decoder’s RS232 port with
a null-modem serial cable, launch the Setup Software,
and “connect” the Software to the Decoder. .................................... 6-1
6.2 Open the Master DFP-3000 screen and set the Master
Volume to 0.0 dB and set the -20 dBFS output level
reference to -10 dBu. ....................................................................... 6-1
6.3 Zero out the Software on the main screen, link Mutes to
Selects, and bring up the Test Signal screen.................................... 6-1
6.4 Select pink noise; select All On; use PC function keys
to select output channels. ................................................................. 6-2
6.5 Check that noise is coming from the selected non-sub
channel at about 85 dB SPL, or 82 dB for the L and R
surround speakers. ........................................................................... 6-3
6.6 Use your RTA and each non-sub channel’s graphic EQ
to dial in the X-curve for each speaker except the subwoofer. ........ 6-3
6.7 Adjust each screen speaker to exactly 85 dB SPL and the
surrounds to 82 dB SPL. .................................................................. 6-3
6.8 Set the subwoofer channel’s parametric EQ for
smooth response ; set each preset’s subwoofer low pass filter
to 100 Hz or lower except SDDS, which should be higher. ............ 6-4
6.9 Referring to your RTA, set the level of the analog subwoofer
so that its bands are about the same level as the center
speaker’s bands in its flat response region....................................... 6-4
6.10 Again referring to your RTA, set the level of the digital (SDDS)
subwoofer bands to 10 dB higher than the flat bands of the center
speaker. ............................................................................................ 6-5
6.11 Set the surround channel delay for each appropriate Preset. ........... 6-6
6.12 Set AUX inputs’ subwoofer levels to +10 dB, if other digital
systems are installed. ....................................................................... 6-6
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6.13 Adjust the sync between optical tracks and SDDS. ......................... 6-7
6.14 Configure your presets for names, output matrix, and fallback....... 6-7
6.15 Match levels between presets using the trims; set bypass levels;
set HI levels. .................................................................................. 6-10
7. Perform an overall systems checkout and listening test............................. 7-1
8. Refer to the Troubleshooting section for help with problems
you encounter. ............................................................................................. 8-1
9. Appendix with connector pinout charts. .................................................... 9-1