Marantz AV7705 - Page 56

CENTER / SURROUND ch
+20dB
+10dB
0dB
-20dB
-30dB
-40dB
-10dB
+20dB
+10dB
-20dB
-30dB
-40dB
-10dB
LINE IN/EXT IN
DAC:AK4458
AV7705
LEVEL DIAGRAM
CENTER/SURROUND ch
1.98Vrms=0dBFS
-10dBFS
200mV
+30dB
F
UL
L SC
AL
E L
E
VE
L =
2
.0
V
rm
s
D
OL
BY
L
IM
IT
L
EV
E
L
= 1
.4
1
V
r
m
s (
AL
L
c
h
-3
d
B
FS)
GAIN Setting of MASTER VOL 00dB
･SW:YES (DIGITAL) -2.0dB -0.5dB = -2.5dB
･SW:YES (DIGITAL) -2.0dB -0.5dB +3.0dB = +0.5dB
① ②③④
①:Basic OFFSET of VOL=0dB (indication valude)
②:Fine-tuning by software Digital input
③:OFFSET of SW NONE
④:OFFSET of A/D input
-20dBFS(DIG.IN)
＋
EXT IN
Balanced
OUT
DS
P
x4p
c
s
NJU72343
GAIN
ADJ.
PRE OUT
A
K4458
D
/
A
－
－
＋
PLD
PRE OUT
-2.5dB
L
.
P
.F
G
A
I
N
=
+
0.
4dB
200mVrms
Headroom:3dB
-23dBFS(A/D IN)
V
ol
um
e I
C
:
N
J
U7
2
343 N
O
N C
L
IP M
AX
S
I
G
NA
L L
EVE
L 4
.
2
V
r
m
s
+0.5dB
1
5
0mV
r
ms
-2.5dB
LINE IN/EXT IN
SW:YES
HDAM
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
56