Lexicon RV-8, Service Manual

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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.
Main Audio Paths 5.1-Channel Input
to / from
M ain Bd
Front
L/R
Level
A/D
8:1
Anlg
MUX
DAC
Front L/R
Rear L/R
Side L/R
Center/Sub
Front L/R Direct Analog Path
data
data
3
6
DAC
DAC
DAC
C/Sub
Level
A/D
data
Side
Level
A/D
data
data
data
data
Side Direct
C/Sub Direct
Side Direct
C/Sub Direct
sw
sw
sw
sw
M ain M ux
sw
6/7 Mux
Front L/R Mux
Ctr/Sub Mux
Side L/R Mux
sw
sw
sw
sw
sw
sw
m ain clks
sw
sw
Rear Mux
C /Sub
Side
1,2
3
4,5
6,7
Main
Main
to
Am ps
+
+
4
7
8
5
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
Rear
Level
Rear Direct
Rear Direct
C /Sub
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 and Zone3 Audio Paths
to / from
Main Bd
Phono
Preamp
Mic
Preamp
8:1
Anlg
MUX
sw
sw
Zone2 L/R
DAC data
Zone3 L/R
Mic1/2
Phono
Phono
Tuner
8:1
Anlg
MUX
sw
sw Phono
Tuner
Output
Level
Output
Level
sw
sw
sw
sw
Zone2 Mux
Zone3 Mux
sw
6/7 Mux
Amp
clks
zone2
Phono
75u
sw
Headphone
clks
Tuner
Module
6,7
main/zone2
1
2
3
4
5
6
7
8
sw
to
Amps
sw
Zone2
Level
A/D data
Zone2 out
Zone2 out
Zone2 Fixed
sw
sw
sw
+
+
+
+
1
2
3
4
5
6
7
8
+ +
+
+ +
+ +
+
Tuner
6-5