Dolby Laboratories DP572 - Manual (Page 25)

Dolby E Multichannel Distribution System User Manual Introduction
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1.5 Quickstart Guide for the DP571 and DP572
This section supplies necessary information to allow immediate encoding and decoding.
1. After unpacking the DP571 and/or the DP572 but before applying AC power,
plug in a stable analog video reference signal. Standard black burst or color
bars can be used as reference video if they are locked to the plant reference.
Since neither unit will function without a video reference signal, we recommend
making this connection first.
2. Connect the digital audio inputs to the DP571.
These are AES3-ID inputs (unbalanced, 75 Ω, 1 V peak-to-peak standard output),
and are very similar to analog composite video.
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If the loop-through BNC
connectors are not being used to feed additional equipment, terminate them
with a standard 75
Ω video terminator.
3. Connect the digital audio outputs of the DP572.
These AES3-ID outputs are electrically separate, not loop-throughs, and
should not be terminated at the DP572. Like analog composite video, the
termination should be placed on the last device in the signal chain. For example,
if the DP572 is connected to a DP569, the terminators should be applied to the
loop-through BNC connectors on the DP569.
4. Connect the Main Out of the encoder to the Main In of the decoder and
terminate the input.
5. Apply power to the DP571 and/or DP572.
6. After completing the boot process (about 25 s), both units show their current status
on the display (same configuration as when they were last powered down).
7. If the VRef LEDs are not green on both units, make sure a valid analog
NTSC or PAL reference signal (black burst) is applied to both units and that
they are properly terminated.
8. The DP571 shows the current encoding Program Config. Set it to 5.1 + 2 by
pressing Setup + Enter when the display shows DP571 Unit Setup: Program
Config. The display now shows the current program configuration. Press the
↓ ↓ ↓ ↓
or ↑ ↑ ↑ ↑ keys until 5.1 + 2 is displayed and press Enter. The square cursor to the
left stops blinking and disappears to indicate the value has been entered.
1.
Using video equipment for distribution of this AES signal is not generally recom-
mended. Equipment is available designed specifically for passing AES3-ID signals.