Onkyo HTR-550 Service Manual page 24

A
SCHEMATIC DIAGRAMS-7
HDMI SECTION
1
NAHDM-9199
U14 HDMI PC BOARD
A
AGND
C8031
104Z
R8008
19
HP DET
R8010
18 +5VIN1HD
1K
+5V
17 1K
GND
R8012
16
DDC DATA
R8013
15 0
DDC CLK
14 0
NC
13
CERemote
2 12
CK-
11
CK Shield
HDMI
10
CK+
9
IN1
D0-
8
D0 Shield
7
D0+
6
D1-
5
D1 Shield
4
D1+
3
D2-
2
D2 Shield
1
D2+
C8041
104Z
C8005
104Z
R8021
19
HP DET
R8022
18 1K +5VIN2HD
+5V
17 1K
GND
R8024
16
3 DDC DATA
R8026
15 0
DDC CLK
14 0
NC
13
CERemote
12
CK-
HDMI
11
CK Shield
IN2 10
CK+
9
D0-
8
D0 Shield
7
D0+
6
D1-
5
D1 Shield
4
D1+
3
D2-
2
D2 Shield
1
D2+
C8040
104Z
4
B
<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.
Q8002
BA33BC0FP
R8011
2.2(1/2W)
+3.3V +5.8V
3 1
O I
R8005
10K
AVCC
C8036 105Z
C8037 102K
R8007
10k
43
AUX_B3
44
AUX_B2
45
AUX_B1
46
AUX_B0
C8038
47
AMUXVCC
105Z 48
AUX_COM3
49
AUX_COM2
50
AUX_COM1
51
AUX_COM0
52
DVEE
53
AUX_A3
R8006 10K
54
AUX_A2
55
AUX_A1
56
AUX_A0
57
e_PAD
+3.28V
A
AGND
C
D8005
C8012 22/4
+3.28V C8021 105Z
R8001
10K
C8028
28 102K
I2C_SCL
27 HDMRST
RESET
26
OP3
25 C8013 105Z
ON3
24
VTTO C8014 102K
AD8196 23
OP2
22 C8015 105Z
Q8003
ON2
21
DVCC C8016 102K
HDMI/DVI SWITCH
20
OP1
19 C8017 105Z
ON1
18
VTTO C8018 102K
17
OP0
16
ON0
15 C8019 105Z
DVCC
C8020 102K
+3.28V
D
L8006 Q8005
NCH-2541 SI-8008
470K +6.1V
+10.8V
2 1
SW VIN
4 5
VADJ SS
GND
JL8001B
GND 1
+12V 2
+12V 3
GND 4
JL8002B
HDMSDA 1
HDMSCL 2
Q8004
HDMRST_IN 3
UM6K1N
1 6
4 3
R8002
5.6k
R8019 0
R8023 0
R8025 0
DLP2ADN900HL4L
4 5
3 6
2 7
1 8
L8003
DLP2ADN900HL4L
4 5
3 6
2 7
1 8
L8004
AGND
HT-R550
E
To NAVD-9178(2/2)
(SD-6 : E3)
To NADG-9177
(SD-3 : G1)
C8039
GND_S
104Z
19
HP DET
18
+5V
17
GND
16
DDC DATA
15
DDC CLK
14
NC
13
CERemote
12
CK-
11 HDMI
CK Shield
10
OUT
CK+
9
D0-
8
D0 Shield
7
D0+
6
D1-
5
D1 Shield
4
D1+
3
D2-
2
D2 Shield
1
D2+
C8042
104Z
A