Russound MCA-C5 Service Manual page 136

5
D
C
C11933pF C11933pF
2
C12033pF C12033pF
2
B
A
5
4
1
Y4 Y4
8.000 MHz 8.000 MHz
1
2
1 3
4
5
6
7
sh2,3,10 RESET#
8
9
10
11
12
13
14
15
16
UEI Debug
J16 J16
TxD 1
RxD
2
LED Out
3
IR In 4
IR Out
5
Gnd
6
4
3
+3.3V
+ + C118 C118
C116 C116 2.2uF 2.2uF
0.1uF 50v 0.1uF 50v
U34 U34
32
VSS VDD
+3.3V
31
XOUT P3.1
30
XIN P3.0
29
TEST P2.4/INT9
28
P2.5/INT9 P2.3/INT8
R138 1k R138 1k
27
P2.6/INT9 P2.2/INT7
26 1 2
RST P2.1/INT6
25 1 2
P2.7/INT9 P2.0/INT5
24
P1.0 P0.7/INT4
RXD RXD R139 1k R139 1k
23
P1.1 P0.6/INT4
22
P1.2 P0.5/INT4
21
P1.3 P0.4/INT4
20
P1.4 P0.3/INT3
TXD TXD
19
P1.5 P0.2/INT2
R141 R141 1k 1k
18
P1.6 P0.1/INT1
17 1 2
P1.7 P0.0/INT0
UEI_S3C80F9 UEI_S3C80F9
3
2
+3.3V
R133 R133 R134 R134
Q28 Q28
1 2 1 2 B
MMBT3906LT1 MMBT3906LT1
47 47 1K 1K
C117 C117
UEI_OUT
100pF 100pF
R135 R135
1K 1K
+3.3V
UEI_IR_IN sh4
R136 R136 R137 R137
Q29 Q29
1 2 1 2 B
MMBT3906LT1 MMBT3906LT1
47 47 1k 1k
C121 C121
UEI_LED_OUT sh4
100pF 100pF
R140 R140
1K 1K
UEI_RXD sh2
UEI_TXD sh2
2
1
D
sh6
C
B
A
Russound Inc Russound Inc
C2 Digital Board - UEI C2 Digital Board - UEI
C C <Doc> <Doc> C C
Tuesday, November 25, 2008 Tuesday, November 25, 2008 12 12 13 13
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