Marantz SR7013 - Page 56

SUBWOOFER ch
+20dB
+10dB
0dB
-20dB
-30dB
-40dB
-10dB
+20dB
+10dB
-20dB
-30dB
-40dB
-10dB
LINE IN/EXT IN
SR7013
LEVEL DIAGRAM
SUB WOOFER ch
1.98Vrms=0dBFS
200mV
+30dB
F
UL
L S
C
AL
E
L
E
VE
L
D
O
L
BY
LI
M
IT
L
EV
E
L
(A
LL
c
h
-
3d
BFS
)
＋
EXT IN
DSP
x
4pcs
NJU72343
GAIN
ADJ.
PRE OUT
MUTE
A
K4
4
5
8
D/A
－
－
＋
PL
D
P
RE OUT
200mVrms
Headroom:3dB
V
ol
um
e
I
C
: N
J
U7
23
4
3
N
ON
C
LI
P MA
X S
I
GN
AL
L
EVEL
4
.2
Vrm
s
-10dBFS
-20dBFS
-30dBFS
-40dBFS
AK4458
-50dBFS
150mVrms
HDAM
GAIN Setting of MASTER VOL 00dB
･DIGITAL IN -2.0dB -0.5dB +14dB = +11.5dB
･ANALOG IN -2.0dB -0.5dB +14dB +3.0dB = +14.5dB
① ②③④ ⑤
①:Basic OFFSET of VOL=0dB (indication valude)
②:Fine-tuning by software Digital input
③:Voltage due to hardware of analog input
④:Correction of Subwoofer
⑤:OFFSET of A/D input
+11.5dB
L
.P
.
F GAI
N
=
+
6.
5dB
+14.5dB
-2.5dB
LINE IN/EXT IN
-34dBFS(DIG.IN:PCM)
-40dBFS
(DIG.IN:DD
DD INPUT:-30dBFS LFE 30Hz
PCM INPUT:-20dBFS L+R
-37dBFS(A/D IN)
ANA INPUT:200mVrms L+R
+11.5dB
+30dB
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
56