FRONT ch
LEVEL DIAGRAM
+20dB
+10dB
0dB
-20dB
-30dB
-40dB
-10dB
+20dB
+10dB
0dB
-20dB
-30dB
-40dB
-10dB
LINE IN
-10dBFS
0dBFS=1.06Vrms
-20dBFS
-30dBFS
-40dBFS
A/D IN
75.2mVrms
(-23.0dBFS)
0dBFS = +/-2.8Vpp=1.98Vrms
AK5358B
PREOUT
159mVrms
-8.5dB
-2.0dB
-23.7dB
200mV
+30dB
SP OUT
4.48Vrms/8Ω
+29dB
-2.0+3=+1.0dB
MAX SIGNAL LEVEL
DOLBY LIMIT LEVEL (ALLch-3dBFS)
MGAIN setting of MASTER VOL 00dB
･SW:YES(DIGITAL)
-2.0dB -0.5dB
= -2.5dB
･SW:YES(ANALOG)
-2.0dB
+ 3.0dB = +1.0dB
･SW:NONE(DIGITAL
)
-2.0dB -0.5dB + 12dB
= +9.5dB
･SW:NONE(ANALOG)
-2.0dB
+ 12dB + 3.0dB = +13.0dB
①
②
③
④
①:Basic OFFSET
of VOL=0dB
②:Fine-tuning b
y
Digital in
p
ut
③:OFFSET of SW
NON
④:OFFSET of the
AD input
-2.0-0.5+12=+9.5dB
-2.0+12+3=+13.0dB
+0.4dB
SW NO
-32dBFS(DIG.IN)
-35.0dBFS(A/D IN)
-20dBFS(DIG.IN)
-23.0dBFS(A/D IN)
0dBFS
-10dBFS
-20dBFS
-30dBFS
-40dBFS
AK4458
+0.4dB
Differential Out
NJU72343 MAX. OUTPUT 4.2Vrms
-
＋
LINE IN
H/POUT
＋
SPEAKER
OUT
DSP
ANALOG
ATT
NJU72750
GAIN
ADJ.
AK4458VN
D/A
－
－
＋
PLD
AK5358B
A/D
NJU72343
PREOUT
to ZONE2
H/POUT
292mVrms
-2.0-0.5=-2.5dB
NR1508
LEVEL DIAGRAM
FRONT ch
38
Caution in
servicing
Electrical
Mechanical
Repair Information
Updating
