Marantz SR5012 Service Manual page 50

SUBWOOFER ch
SR5012
LEVEL DIAGRAM
SUBWOOFER ch
AK4458VN
＋
＋
PLD
D/A
－ －
DSP
0dBFS = +/-2.8Vpp=1.98Vrms AK4458
0dBFS
-10dBFS
-20dBFS
-30dBFS
-34dBFS(PCM.IN)
INPUT : -20dBFS(DIG.IN) PCM
-37dBFS(A/D IN)
200mV(A/D IN) +6.5dB
-40dBFS
-40dBFS(DIG.IN)
INPUT:-30dBFS DD LFE
DD Config1
NJU72343
NJU72343 MAX. OUTPUT 4.2Vrms
MAX SIGNAL LEVEL
DOLBY LIMIT LEVEL (ALLch-3dBFS)
-2.0-0.5+14=11.5dB
-2.0-0.5+14=11.5dB
-2.0-0.5+14+3=+14.5dB
MGAIN setting of MASTER VOL 00dB
･DOLBY DIGITAL IN
･PCM DIGITAL IN
･ANALOG IN
①:Basic OFFSET of VOL=0dB
②:Fine-tuning by Digital input
③:OFFSET of SW-ch
④:OFFSET of A/D input
50
＋
GAIN
ADJ.
-2.0dB - 0.5dB + 14dB = + 11.5dB
-2.0dB - 0.5dB + 14dB = + 11.5dB
-2.0dB + 14dB + 3.0dB = + 15.0dB
① ② ③ ④
SPEAKER
OUT
PREOUT
+30dB
+20dB
+10dB
PREOUT
300mVrms
0dB
PREOUT
150mVrms
-10dB
-20dB
-30dB
-40dB