Digital Main Assy (6/10) - Pioneer SC-37 Service Manual

1

10.15 DIGITAL MAIN ASSY (6/10)

QQ
3 7 63 1515 0
A
B
C
TE
L 13942296513
F
2/10,5/10,7/10,
V+5R6_DDD
8/10,10/10
CONT_EV
D
V+5_XM
V+5_XM1
!
*JA1801
V+5_XM2
AKP7201-A
1
E
2
3
4
RT1
RT2
RT3
www
F
F
6/10
148
1
http://www.xiaoyu163.com
2
F
2/10-5/10,7/10,8/10,10/10
XM/DT BLOCK
!
*IC1816
1 5
VIN VOUT
2
GND
3 4
CONTROL NB
NJM2872BF33
V+3R3_XM1
(1608) *R1814
R1815
(1608)
R1816
*R1817
0.1u/10
R1810
EXCEPT
NM
XM MODEL
0.1u/10
R1811
NM
*C1805
0.1u/10
R1802
SYB
NM
R1803
*C1806
NM
0.1u/10
SYB
*C1810 *R1812
8p/50
1k
SCH
*C1811
8p/50
SCH
x ao
y
. i
The mark found on some component
parts should be replaced with same
parts (safety regulation authorized)
of identical designation.
2
http://www.xiaoyu163.com
3
8
CONT_GA
V+5R6_EV
GNDD
V+5_D
IC1802
!
1 5
CE VOUT
2
GND2
3 4
NC VIN
R1172H501D
GNDD
F
1/10
EMSPDIF
HDSPDIF/DSDSL
NETSPDIF
ARCSPDIF
F
5/10
Q Q
3 6 7
(1608) *R1823 100
*R1824 100
*R1825 100
*R1826 100
*R1827 100
100k (1608) *R1828 100
*R1829
NM 100
NM
100k *R1831 100k
*C1814 SYB
100k
*R1832
*C1815
SYB
13 48 *R1834
14 47 *R1835
I2S_RATE SAII_REQ
15 LINKACTIVE SAII_DATA 46
COMM_TX_EN VDD8
16 45
VSS3 SAII_CLK
17 44
VDD3 MUTE
18 43
COMM_TXRX_P1 I2S_OCLK
19 42
COMM_TXRX_M VSS9
20 41
VDD4 I2S_LRCLK
21 40
VSS4 VDD7
22 39
COMM_TXRXM I2S_SCLK
23 COMM_TXRX_P2 VSS8 38
VSS5 I2S_DATA
24 37
*IC1803
BU9450KV
*C1819
0.1u/10 SYB
*R1818
0 *R1821 100k
*R1822 100k
u163
SC-37
3
4
2 9 9 4
V+5_D
V+5_D1
L1805
QTL1013-A
SC-35,SC-1525-K
ONLY
SPDIF SELECTOR
*C1822 SYB
0.1u/16
*C1823 SCH
330p/50
IC1805
R1837 14 1 R1845
(1/4)
2 3
100
100
7
TC74VHCT125AFK
IC1805
14 4
R1838 (2/4)
5 6
100
TC74VHCT125AFK 7
IC1805
R1839 14 10
(3/4)
9 8
100
7
TC74VHCT125AFK
IC1805
R1942 14 13 (4/4)
12 11
100
7
TC74VHCT125AFK
V+5_D
R1840
TC7WHU04FU
47k IC1804
IC1804
(2/3)
(3/3)
IC1804
8 8 8
C1821
1 6 3
7 2 5
1u/10
4 4 4
GNDD
GNDD
1 3 1 5 0 5 8 2 9
V+3R3_XM2
*C1825 0.1u/10 SYB
*C1826 470p/50 SCH
14
2
7
14
5
7
14
*R1843 100
9
7
14
12
7
XMLINK
XMPOW
XXMERR/RDSSCK
XXMRST
XMIRQ/RDSSI
XMRX
XMTX
100k
100k
R1836
NM
XMMUTE
F
1/10-5/10,7/10-9/10
CONT_EMMA
*R1833
8
1
7
2
3 6
4 5
47
XMDT4
m
XMRATE
co
.
4
2 8
9 9
DAC/ADC
F
7/10,8/10
SC-37 ONLY
XHDSPDIF
XNET
XHARC
XEMSPDIF
9 4 2 8 9 9
*L1806
QTL1013-A
XXM
1
3
*IC1806 (1/4)
TC74VHC125FTS1
4
6
*IC1806 (2/4)
TC74VHC125FTS1
10
*R1846 47
8
(3/4)
*IC1806
TC74VHC125FTS1
13 *R1847
47
11
*IC1806
(4/4)
TC74VHC125FTS1
HDMI PCM DATA HDMI DSD DAT
HFDT FL/FR HFDT
CDTI C/SW HDLRCK
SDTI SL/SR SDTI
BDTI SBL/SBR CDTI
HSPDIF
BDTI