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4.Volume and EXT. Section/SL/SR/SBL/SBR
SL EXT. Input
Buffer
U2011(OPA4134)
Output Buffer
U2027(OPA4134)
Volume
U2039(WM8816)
Main SL Output
13dBr(DAC)
0.5dBr
0dBr(150mVrms)
Muti-Source Selector
U2059(TC9274N-008)
2.5dBr(EXT)
Buffer
U2022(OPA2134)
Mute
Q2030, Q2031(SC3326)
Attenuation
R2238, R2239(220R), R2209(47R)
0.5dBr
0.5dBr
If load is
10Kohms,
attenuation is
0.5dB
DAC LPF(55KHz 2rd Butterworth with 16.5dB gain)
U2017(OPA2134)
)
r
B
d
5
.
2
(
B
d
0
)
s
m
r
V
m
0
0
2
(
B
d
0
From DAC SL
-20dBfs
13dBr
is -23dBfs if
Surround is
"single" or
mode is
NEO:6
13dBr(DAC)
2.5dBr(EXT)
Reduce 12.5dB if input
from DAC and Compensate
gain if DAC output is
changed
Reduce 4dB if DIALNORM
is 27
Reduce 2dB if input from
EXT.
SR EXT. Input
Buffer
U2011(OPA4134)
Output Buffer
U2027(OPA4134)
Volume
U2039(WM8816)
Main SR Output
13dBr(DAC)
0.5dBr
0dBr(150mVrms)
Muti-Source Selector
U2059(TC9274N-008)
2.5dBr(EXT)
Buffer
U2022(OPA2134)
Mute
Q2032, Q2033(SC3326)
Attenuation
R2240, R2241(220R), R2210(47R)
0.5dBr
0.5dBr
If load is
10Kohms,
attenuation is
0.5dB
DAC LPF(55KHz 2rd Butterworth with 16.5dB gain)
U2018(OPA2134)
)
r
B
d
5
.
2
(
B
d
0
)
s
m
r
V
m
0
0
2
(
B
d
0
From DAC SR
-20dBfs
13dBr
is -23dBfs if
mode is
NEO:6
13dBr(DAC)
2.5dBr(EXT)
Reduce 12.5dB if input
from DAC and Compensate
gain if DAC output is
changed
Reduce 4dB if DIALNORM
is 27
Reduce 2dB if input from
EXT.
SBL EXT. Input
Buffer
U2012(OPA4134)
Output Buffer
U2028(OPA4134)
Volume
U2040(WM8816)
Main SBL Output
13dBr(DAC)
0.5dBr
0dBr(150mVrms)
Muti-Source Selector
U2059(TC9274N-008)
2.5dBr(EXT)
Buffer
U2023(OPA2134)
Mute
Q2034, Q2035(SC3326)
Attenuation
R2242, R2243(220R), R2211(47R)
0.5dBr
0.5dBr
If load is
10Kohms,
attenuation is
0.5dB
DAC LPF(55KHz 2rd Butterworth with 16.5dB gain)
U2019(OPA2134)
)
r
B
d
5
.
2
(
B
d
0
)
s
m
r
V
m
0
0
2
(
B
d
0
From DAC SBL
-20dBfs
13dBr
is -23dBfs if
Back surround
is "single" or
mode is
NEO:6 or
DTS5.1 matrix
13dBr(DAC)
2.5dBr(EXT)
Reduce 12.5dB if input
from DAC and Compensate
gain if DAC output is
changed
Reduce 4dB if DIALNORM
is 27
Reduce 2dB if input from
EXT.
SBR EXT. Input
Buffer
U2012(OPA4134)
Output Buffer
U2028(OPA4134)
Volume
U2040(WM8816)
Main SBR Output
13dBr(DAC)
0.5dBr
0dBr(150mVrms)
Muti-Source Selector
U2059(TC9274N-008)
2.5dBr(EXT)
Buffer
U2023(OPA2134)
Mute
Q2036, Q2037(SC3326)
Attenuation
R2244, R2245(220R), R2212(47R)
0.5dBr
0.5dBr
If load is
10Kohms,
attenuation is
0.5dB
DAC LPF(55KHz 2rd Butterworth with 16.5dB gain)
U2020(OPA2134)
)
r
B
d
5
.
2
(
B
d
0
)
s
m
r
V
m
0
0
2
(
B
d
0
From DAC SBR
-20dBfs
13dBr
is -23dBfs if
mode is
NEO:6 or
DTS5.1 matrix
13dBr(DAC)
2.5dBr(EXT)
Reduce 12.5dB if input
from DAC and Compensate
gain if DAC output is
changed
Reduce 4dB if DIALNORM
is 27
Reduce 2dB if input from
EXT.
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