LEVEL DIAGRAM
FRONT ch
+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)
GAIN setting of MASTER VOL 00dB
･DIGITAL in
-2.0dB -0.5dB
= -2.5dB
･ANALOG in(DIRE
CT)
-2.0dB
= -2.0dB
･ANALOG in(STER
EO)
-2.0dB
+ 3.0dB = +1.0dB
①
②
③
①:Basic OFFSET
of VOL=0dB
②:Fine-tuning
by DIGITAL in
put
③:OFFSET of th
e
AD input
-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
DSP
ANALOG
NJU72750
GAIN
PLD
AK5358B
A/D
NJU72343
PREOUT
to ZONE2
H/POUT
292mVrms
-2.0-0.5=-2.5dB
NR1200
LEVEL DIAGRAM
FRONT ch
＋
－
AK4458VN
D/A
－
＋
－
＋
＋
－
＋
－
Before Servicing
This Unit
Electrical
Mechanical
Repair Information
Updating
35
