Onkyo HTR-550 Service Manual page 26

A
SCHEMATIC DIAGRAMS-9
XM DIGITAL TRANSCEIVER SECTION
NADG-9179
<Note> MDD, MDC Type only
1
U13
XM DIGITAL TRANSCEIVER PC BOARD
+3.28V
1
LSDP
2
VSS
XM_SDI_L 3
SC_TX_OUT
C2001 +3.28V
4
VDD
XM_SDO_L 5
104Z
2
SC_RX_IN
R2051 100K
6
I2C_SCL
R2002 100K 7
I2C_SDA
8
VDD
XM_IRQ_ANT 9
ANT_REV
10
VSS
XM_RESET 11
RST
12
SLAVE_SEL
C2002
102K
3
4
B
Q2002
CS4344
R2014 330
I2S_SDO 1
SDIN
I2S_SCLK R2013 330 2
SCLK
R2015 330
I2S_LRCLK 3
LRCK
I2S_OCLK R2012 100 4
MCLK
5
VQ
R2055
100K
36
HSDP_EN
R2056
35
DT4_MODE
34 NC
HSDP_CLK
C2011
33
VDD
Q2001
32 R2053
104Z
HSDP_DA
31 NC
XMDTIC_4A
VSS
30
C2009
F2628E-01 TEST
R2054 080D
29
SC_RATE
28 10K
OSC_IN
C2010
27
VDD
26 104Z
OSC_OUT
25 R2010
VSS
680
C2008
040C
+3.28V L2001
+3.3V_XM
LBC2518T2R2M
C2005
R2008
100 104Z
C2006
R2009
100 104Z
C
<Note>
NC = No mount of parts.
SD-Z : XY
Location of connected terminal in schematic diagrams.
SD-Z = Schematic diagrams-Z. X = A to H, Y = 1 to 5.
DAC
C2021 R2021 R2025
10
AOUTR
9 +3.3V
10/50 2.2K 2.2K
VA C2018
8
470/10
GND
7
AOUTL
6
FILT+ C2017
104Z
C2022 R2022 R2026
10/50 2.2K 2.2K C2026
L2003
LBC2518T2R2M
+3.3V +11.9V
3 1
O I
Q2005
TA48033AF
Q2008
TC4053BFT
1
1Y
VCC
2
0Y
YCOM
3
1Z XCOM
4
ZCOM
1X
5
0Z 0X
6
INH
A
7
VEE B
8
GND
C
Q2004
TA48033AF R2047 C2037
22(1/2W)
+3.3V
104Z
3 1
O I
R2036
0
Q2006
+5.1V
XM_IRQ_ANT 1 14
VCC
2 13
IN6
XM_SDI_L 3 12
OUT6
4 11
IN5
XM_LNK 5 10
OUT5
6 9
IN4
7 8
GND OUT4
11 10
Y8 GND
12 9
Y7 A8
XM_SDO_L 13 8
Y6 A7
XM_RESET 14 7
Y5 A6
15 6
Y4 A5
16 5
Y3 A4
17 4
Y2 A3
18 3
Y1 A2
19 2
_G2 A1
+3.3V
20 1
VCC _G1
D
R2031
+11.8V
NE5532APSR 22(1/2W)
C2025
821J Q2003A
3
C2027
1
2
10/50
R2027
4.7K
R2028
+11.9V
4.7K
6
C2028
7
5
10/50
Q2003B
821J
NE5532APSR
R2032 -12.2V
-12.1V
22(1/2W)
+4.9V
16
15
14
13
12
11
10
9
BLM21PG221SN1
+5.3V
BLM21PG221SN1
R2033 22
R2034 22
BLM21PG221SN1
D2001
UDZS5.1B
C2035
R2044
220
104Z
R2059
0
R2035
0
R2046
0
HT-R550
E
XM_L_OUT 1
XM_R_OUT 2
GND_A 3
SR_L_OUT 4
SR_R_OUT 5
+12V 6
-12V 7
P2002
11
GND
R2040
10
SHIELD
9
0
SHIELD
8
L_OUT
7
AGND
R2038
6
TX
SIRIUS
22 5
R_OUT
4
GND
R2039
3
RX
2
22
RESET
1
VIN
L2006 C2041
1
L2004
4
1
C2040
NC
4
4
GND
3
D+
2 XM
D-
+5.3V 1
+V
L2005
P2001
XMANT 1
XMLNK 2
XMDACRST 3
XMCOMSEL 4
XMERRIRQ 5
XMSRSEL 6
XMSRTXD 7
XMSRRXD 8
XMRST 9
GND 10
+5V_XM 11