Lexicon RV-8 Service Manual page 81

Lexicon
1. An S/PDIF signal may be encoded in Dolby Digital or DTS format and pass through a decoder that
outputs the 5.1-channels. These channels are then passed along to the DSP and sent to the analog
board.
2. Two sets of three separate analog input pairs can be routed directly to the outputs, bypassing the
DSP and converters. This mode is available for DVD-Audio and multi-channel SACD players with 5.1-
analog outputs. In the first case, Input 3 would pass to the Left and Right Front outputs, Input 4 would
pass to the Center and Subwoofer outputs. Input 5 would pass to the Left and Right Side and Rear
outputs. A duplicate set uses inputs 6,7, and 8 in a similar manner.
M ain Mux
8:1
3
Main
+
Anlg
6
+ MUX
Main
4 C/Sub sw
sw
7 C/Sub
sw
5 Side
sw
8 Side
Zone2 and Zone3 Audio Paths
Any of the ten analog or eight digital audio inputs can also be selected as the source for the Zone2 and
Zone3 audio paths. Refer to the Zone2 and Zone3 Audio Paths block diagram below. An analog source
can be passed directly to the analog outputs. Likewise, a digital source can be routed to a D/A converter
for the analog outputs. In addition, a 5.1 Dolby Digital or DTS encoded 5.1 digital source may also be
selected and passed through a decoder which will output a 2-channel downmix for the Zone2 outputs.
Zone2 out sw
+
Phono sw
+
75u
sw
Mic1/2
+
Phono
+
Zone2 Mux
Phono
Preamp
Mic Tuner
Preamp
Phono
Tuner
+
Zone3 Mux
Tuner
Module
Tuner
Phono
Main Audio Paths 5.1-Channel Input
Front
L/R A/D
+ + data
Level
C/Sub Direct
C/Sub
A/D
data
+ +
Level
Side Direct
Side
A/D
+ + data
Level
Rear
Rear Direct
Level
Zone2 and Zone3 Audio Paths
Zone2
A/D
data
+
Level
1
2
8:1
3
4
Anlg
5
6
MUX
7
8
sw
sw
1
2
8:1
3
4
Anlg
5
6 MUX
7
8
sw
sw
Front L/R Direct Analog Path
DAC
data
m ain clks
C/Sub Direct
DAC
data
Side Direct
to / from
Main Bd
DAC
data
Rear Direct
DAC
data
zone2
clks
to / from
Main Bd
main/zone2 DAC
data +
clks
Zone2 out
Front L/R Mux
Front L/R
sw
+
sw
+
Ctr/Sub Mux
Center/Sub
sw
+
sw
+
Side L/R Mux
Side L/R
sw
+
sw
+
Rear Mux
Rear L/R
sw
+
sw
+
1,2
6/7 Mux 3
4,5 Amps
sw
+
6,7
6/7 Mux to
Amps
sw
+
6,7
sw
Headphone
sw
Amp
sw
Zone2 L/R
Output
sw
+ +
Level
sw
Zone2 Fixed
Output
sw
+ +
Level
Zone3 L/R
sw
to
6-5