Standard Communications mt930b, Руководство по обслуживанию, Страница: 106 / 155

Drawings
Page 9-18 Service Manual MT930B
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36 37 38 39 40 41 42 43 35 27 28 29 30 31 32 33 34
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P0.0_AD0
AVSS
AVREF-
AVREF+
+
P4.3_CMSR3
P4.3_CMSR3
P4.0_CVSR0
RU07 100
AFC REF
CN
SIGNAL
AFC WIPER
LNB VOLTAGE
P4.2_CMSR2
EDTT_SWS
MENLL_SWS
EDTT_SWA
MENLL_SWA
P4.7_CNT1
P4.5_CMSR5
P
5
.7_A
D7
AV
D
D
P5
.3
_
A
D
3
EW
PW
M1
PW
M0
ST
A
D
C
VD
D
P3
.3
_
IN
T
1
P3
.4
_
T
0
P3
.5
_
T
1
P3
.6
_
W
R
P3
.7
_
R
D
NC1 NC2 XT
A
L
2
XT
A
L
1
V
SS1
V
SS2
NC3 P2
.0
_
A
8
P2
.1
_
A
9
P2
.2
_
A
1
0
P2
.3
_
A
1
1
P2
.4
_
A
1
2
P5
.5
_
A
D
5
P5
1
_
A
D
1
P
5
.6
_
AD6
P5
.2
_
A
D
2
P5
.4
_
A
D
4
P5
.0
_
A
D
0
P0.3_AD3
P0.2_AD2
P0.1_AD1
P4.4_CMSR4
RST
P1.6_SCL
P1.7_SDA
P2.7_A15
P2.6_A14
P2.5_A13
P0.4_AD4
P0.5_AD5
P0.6_AD6
P0.7_AD7
EA
ALE
P1.0_CT01
P1.1_CT11
P1.2_CT21
P1.3_CT31
P1.4_T2
P1.5_RT2
P4.6_CNT0
54
51
48
45
56
75
51
52
53
54
55
56
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60
61
63
64
65
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1
26
25
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1 1
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29 45 37 33 46 50 41 28 44 36 32 49 40 27 43 35 31 48 39
30 30
29 29
28 28
27 27
26 42 34 30 47 38
97
81 89
93 80 85 98
82 90
94 77
86
99
GND
101_PGCK1
102
106
1011
1013
1015
1017
1018_SGCK2
1043
1044
1053
VCC
1052
CCLV
VCC
D_TDD
–
1056_DIN
1057_SGCK4 _DOU
1055
1054
GND
1050
1049
1051
1045
1046
1047
1048
1039
1042
1041
1040_PGCK3
10
19
_S
G
C
K
2
102
1
10
24
GN
D
DO
N
E
GN
D
1
030
103
4
10
26
1
025
10
29
103
3
10
37
10
31
103
5
102
3
VC
C
103
2
1
036
10
27
NC
NC 10
2
0_H
DC
10
22
_L
D
C
10
28
_I
NI
T
VCC
GND
GND
VCC
1010
1012
1014
1016
109
108
107
103_TD1
105_TMS
104_TCK
83 91
95
78 87 84 92
96
79 88
PSEN
10280
Figure 9-17. MT930B Microprocessor PC Board Schematic