Block Diagram For Digital Audio Block - Pioneer VSX-LX52 Service Manual

1

4.2 BLOCK DIAGRAM FOR DIGITAL AUDIO BLOCK

A
Block Diagram (Digital Audio part)
B
Analog in(L/R)
CN501
#3, #1
JA101 Coaxial in( 2 )
C
JA103 Optical in(3)
JA104
JA105
JA106
Optical out
D
Zone2
USB
Analog
out(L/R)
CN501
#23, #21
E
F
18
1
2
I2S MCLK
I2S BCLK, LRCLK
I2S DATA (uncompressed)
I2S DATA (compressed(Include dts HD High Resolution Audio, dts HD LBR, Dolby Digital Plus) or 2ch(under 48 kHz for HDMI))
I2S or DSD DATA (Signal from HDMI (dts HD Master Audio) (Dolby TrueHD) (SACD) (LPCM Multi)(for over 88.2 kHz of PCM or LPCM))
S/PDIF, Operation Clock,etc
Analog Audio Signal
Control/Memory Bus Line
AK5358AET
DIR/DIT
IC101
AK4118
Buffer
IC215
7SH08
1, 144 141,142
2 140
GATE ARRAY
IC1300
PE7008A
From HDMI Block
Buffer
IC1563
7WH157
HDMI
AUDIO SW
IC1566
VHC541
VSX-LX52
2
3
X'tal for USB
X1250
48.0MHz
ASS7099-
ADC
IC501
R202, R204, R206, R208
USB/iPod
Audio
DAC DAC
IC521 IC521
AK4388ET AK4388ET
SW
IC241
74VHC125
IC301
3
4
Buffer IC1251 7PAU04
N1
MAIN LSI
IC800
UPD61283F1-407LU2A
EMMA
E18
C19, D20
E21
USB/iPod
Audio
Control IN/OUT
SW
IC221
74VHC157
R462, R464, R462, R464,
R466, R468 R466, R468
7WH126(1/2)
7WH126(2/2)
SW
IC231
74VHC157
Channel Assigment Difference
Pin No. SACD Signal OTHER Signal
N/A
85 Data(C)
86 Data(LFE) N/A
Data(FL,FR)
97 Data(FL)
98 Data(FR) Data(SL,SR)
99 Data(SL) Data(C,LFE)
Data(SBL,SBR)
100 Data(SR)
4
M24
SW
IC363
SW
IC363