Icom IC-7700 Service Manual page 92

LOGIC UNIT (LOGIC-1)
R1054
R1053
J820
B10B-PH-SM4-TB 0 0
L801
LG_PWR MMZ1608S181CT X6
1
GND 100U EP821
2
-12V EP822
3
+15V EP832
4
+15V
5
EP833
6
+8V EP836
7
+3R3V
8
+3R3V EP837 +3R3V
9
GND
10
J821
B 9B-PH-SM4-TB
GND
1
VDD1R5
2
3
VDD3R3
4 IC801
UPC2933BT
5 MPZ2012S331A
VDD5
6 EP834 R812
PWRS
7 I
C15V
8 68
GND
9 EP835
MPZ2012S331A
R814
PWRS
1K
TA78L08F
+3R3V
L803 IC802
15U
R819
VDD1R5
L804
O I
15U
VDD3R3 G 22
L805
15U
L806
15U
VDD5
L807
R802 2SD1619
15U
VDD5A 4.7
L808
15U
VDD5B R803
1K
R801
10K
Q802
2SC4081
L811
VDD3R3A
10U
R816
Q810
2SD1664
10K
TXS
TXS
RXS
RXS
EP840
MPZ2012S331A
MPZ2012S331A
C827 0.001
C828 100P
EP838
VDD5VF
1
NC
2
C829 0.001 GND
3
C830 100P MSND
4
EP839
+8V
5
MPZ2012S331A NC
6
C831 0.001 C15V
7
C832 100P C15V
EP824 8
C15V
9
C833 0.001 GND
MPZ2012S331A
10
C834 100P GND
EP825 11
+3R3C
12
EP826 M PZ2012S331A LG_RES
13
LG_RES
MMZ1608Y102BT NC
14
EP829 LG_PWR
15
MMZ1608Y102BT
NC
16
EP827 LTXD
LRXD 17
EP828 MMZ1608Y102BT LRXD
LTXD 18
MMZ1608Y102BT GND
19
GND
20
52808-2071
J806
R1151 EP801 LCLK
DO_CLK 39
R1152 56 EP802 MMZ1608D121B R0
DO_R0 37
R1154 100 EP804 MMZ1608D121B R2
DO_R2 35
R1155 100 EP805 MMZ1608D121B R3
DO_R3 33
R1157 100 EP807 MMZ1608D121B R5
31
DO_R5
R1158 100 EP808 MMZ1608D121B G0
DO_G0 29
100 EP810 MMZ1608D121B G2
R1160
DO_G2 27
R1161 100 EP811 MMZ1608D121B G3
DO_G3 25
R1163 100 EP813 MMZ1608D121B G5
23
DO_G5
R1164 100 EP814 MMZ1608D121B B0
DO_B0 21
R1166 100 EP816 MMZ1608D121B B2
DO_B2 19
R1167
100 EP817 MMZ1608D121B B3
DO_B3 17
R1169 100 EP819 MMZ1608D121B B5
DO_B5 15
100 MMZ1608D121B HS
13
FP_HS
R1170 EP820 DE
FP_DE 11
100 MMZ1608D121B GND
91
78
GND
56
LVDD3
34
LVDD1
1
40FLT-SM2-TB
To DISPLAY BOARD J202
THML
MCK
FANI MDAT
FORL
REFL DRESL
ALCL DRESH
DRESD
IDL
VDL
FRWT
EPAD
DSPCK
O
G
D867
MA742
2SD1619 MHSK0
Q803 R804 4.7 Q804 MHSK1
SKYS
R805
SENI
D801 D802
RTKI
1K TRVI
MUTEI
R806
DX1
NSQ
DA221 DA221
10K VSQL
Q805 RTD
2SC4081
TND
DVOX
DAVOX
R818 CTFL
10
SPDIF_IN
R854
SPDIF_OUT
560K
R1033 R851
13
MEREF D857 R855 TRAS
14
0 100K EXRL1
12
1SS355 4.7K EXRL2
IC851
SQ S
NJM2058M
SQLS
ASTB
R872
METV
MSTB
560K
R871 RSTBT
9
D858 R873 CP871 RSTBR
8
100K DSPR
10
YOBI 4.7K
IC851 1SS355 CP10S DPST
NJM2058M DFR
DFX
DSKY
J805
UNLK
PCK/CON0
PDAT/CON1
CON2
PSL
PST
DULS
THRI
KEY I
ISTA
FSTB
CSTB
DX1S
SHSK0
SHSK1
DSDA
SCK
SDAT
SST1
SPS0
GND
40 SST2
GND
38
SSYNCIO
R1 EP803 R1153
36 DO_R1
DFRS
GND MMZ1608D121B 100
34
DFXS
R4 EP806 R1156
32 DO_R4
OC S
GND MMZ1608D121B 100
30
G1 EP809 R1159 OSS1
28 DO_G1
OSS2
GND MMZ1608D121B 100
26
DSTB
G4 EP812 R1162
24 DO_G4
DSON
GND MMZ1608D121B 100
22
B1 EP815 R1165 DSAP
20 DO_B 1
DSCL
GND MMZ1608D121B 100
18
R1168 SST
B4 EP818
16 DO_B 4
SSR
GND MMZ1608D121B 100
14
VS
FP_VS
12
UD/RL
0
GND
LVDD4 R1052 C853 820P
R842
LVDD2
2 R860 R861
0
47K
3.3K
2.2K
9
6
R862
R858 7 10
R859
C851
5
IC852
MAIN_AF 2.2K
IC852 NJM2058M
10 1.5K 1.8K
NJM2058M
C857 820P
R867
R866
2.2K
3.3K
2
R868
1
C855 R864 R865
3
MOD 330
IC852
10 1.5K 1.8K
NJM2058M
Aud_DA_Rs v
MIC
VOX
MAIN_RXDET
MAIN_RX
VDD3R3A
FANG
4 R825
FAN2
3
MCK FANG
2
1 Q821
MDAT FAN1
1
2SB1201
DRESL
J824
DRESH B 4B-PH-SM4-TB
R830
DRESD
22K
FRWT
IC821
2
DSPCK 1
3
NJM2904M
THML
FANI
FORL
R823
REFL 1.2M
ALCL
IC821 R826
ID L 6
R822
Q822
VD L FANI 7
R827
27K D821 2SC4081
EPAD 5
1K
27K MA8047
NJM2904M
D805
T8V DULS
UNLK
R8V
1SS385
R8V R901
MHSK 0 R902 10
T8V
10
MHSK 1 RSTBR R903
10
SKYS RSTBT R904
SENI DPST R905 10
RTKI R906 10
10
TRVI R907
10
MUTEI CTFL R908
DX1 10
NSQ DAVOX R910
VSQL R911 10
DSKY
10
RTD DFX R912
10
TND DX1 R913
DVOX TND R914 10
DAVOX VSQL R915 10
10
CTFL DFR R916
10
NSQ R917
SPDIF_IN DSPR R918 10
SPDIF_OUT RTD R919 10
10
DSPCK R920
10
TRAS MET R921
EXRL1 EPAD R922 10
EXRL2 MUTEI R923 10
SQS DRESL R924 10
10
SQLS MSTB R925
10
ASTB ASTB R926
MSTB MCK R927 10
RSTBT MDAT R928 10
10
RSTBR
DSPR
DPST
DFR
DFX
DSKY
MET
SEND
UNLK
PCK/CON0
PDAT/CON1
CON2
PSL
PST SEND R1056
SMUT EP932 0
DULS SATT EP933 MPZ1608S221A
R934 MPZ1608S221A
THRI R935 10
IKEY
THML R936 10
ISTA ALCL R937 10
FSTB ID L R938 10
CSTB VDL R939 10
10
DX1S
SHSK0
SHSK1
SQLS R940
DSDA TRVI R941 10
TRAS R942 10
SCK RTKI R943 10
SDAT SENI R944 10
SST1 SQ S R945 10
SPS0 EXRL2 R946 10
SST2 EXRL1 R947 10
SSYNCIO SKYS R948 10
DFRS MHSK1 R949 10
MHSK 0
DFXS R950 10
R951
OC S DRESD 10
OSS1 FRWT R952 10
OSS2 10
DSTB
DSON
DSAP
DSCL
SST
SSR
SPDIF_OUT
EP972
MMZ1608B301CT
SPDIF_IN
EP973
MMZ1608B301CT
R843
8
330 R877
R878 GND
150K
2
C865 R876
RXPLAYE
1
4.7K
RXPLA Y
3
10 560 IC853 MICPLAYE
NJM2058 M R1029 MICPLAY
4.7K MICRECE
C866 MICREC
180P RXRECE
R880 RXRE C
13
120K
14
R881
C867 R879
12 6
0.0068 8.2K
IC852
7 4.7K
NJM2058 M R1030
5
IC853
NJM2058 M 4.7K
R883
8.2K
R884
13
C869 R882
14 4.7K
R1031
12
10 560
IC853
NJM2058 M 4.7K
R886
8.2K
R887
9
R885
C871
8
4.7K
R1032
10
10 560 IC853
4.7K
NJM2058 M
R850
0
R893
6
IC851
R888 D851
FORL 7
R894
5
220 1SS355
NJM2058M
10
8
R892
V+
IC821
GND NJM2904 M 270K
R895
4 D852 IC851 2 100K
R890
REFL 1
R832
R896
3
220 1SS355
NJM2058M
22K 10
R833
10K
T8V
DRESL
FSTB
CSTB
MDAT
MCK
DRESL
ISTA
IKEY
THRI
R955
J808
GND
1 0
R8V
2
T8V
3
RSTBR
4
RSTB T
5
BPST
6
DULS
7
FANV
8
CTFL SHSK1
9
SHSK0
10
DAVOX
11
FRWT
DSKY
12
DFX DFXS
13
DX1 DFRS
14
TND DX1S
15
VSQL SSYNCI O
16
DFR SPS0
17
NSQ SST1
18
DSPR SST2
19
RTD SDAT
20
DSPCK SC K
21
MET
22
EPAD
23
MUTEI D RESD
24
DRESL SST
25
MSTB SSR
26
ASTB DRESL
27
MCK SMUT
28
MDAT SATT
29
GND
30
52808-3071
Q 901
3 4
DSON
2 5
1
6
J809 XP4311
GND Q 902
1
SEND
2
3 4
SMUT
3
SATT DSAP
4
FORV 2 5
5
REFV
6
1 6
THML
7
ALCL DSCL XP4311
8
ID L DSDA
9
VD L M DAT
10
RXDET MCK
11
VOXAF DST B
12
GND
13
VOXAFE
14
SQLS
15
TRVI
16
TRAS
17
RTKI MCK
18
SENI MDAT
19
SQ S OC S
20
EXRL2 OSS2
21
EXRL1 OSS1
22
SKYS
23
MHSK1
24 C850
MHSK0
25
DRESDM
26
FRWT IC854
27
GND 8
28
GND 7
29
6
GND
30
UNLK 5
52808-3071
TC7W04F
UNLK
DRESH
J826
PDAT/CON1
SPDO
1 PCK/CON0
2 CON2
SPDI
3
4 PST
PSL
B4B-ZR-SM4-TF
T8V
R8V
J810
9
EP854
8
MMZ1608B301CT
7
EP853
6
MMZ1608B301CT
5
EP852
4
MMZ1608B301CT
3
EP851
2
MMZ1608B301CT
1
B9B-PH-SM4-TB
J804
GND
1
GND
2
GND
D+1
USB1_HP 3
D-1
USB1_HM 4
IC852 VBUS1
USB1_5V 5
NJM2058M GND
6
GND
4 4
GND 7
D+2
V+ V+
USB2_HP 8
IC853 D-2
GND GND USB2_HM 9
NJM2058M VBUS2
11 11 USB2_5V 10
B10B-ZR-SM4-TF
10 - 2
4
V+
GND
11
100K
EP905
MPZ2012S331A
J811
EP901
+15V
24
+15V
MPZ2012S331A 23
+15V
22
GND
21
GND
20
MPZ2012S331A X9 GND
19
EP902 -12V
18
EP903 +3R3V
17
EP904 T8V
16
R975 FORV
15
10
R976 REFV
14
10
GND
13
EP907 TO E
12
EP908 FSTB
11
EP909 CST B
10
EP910 TDAT
9
EP911 TCK
8
GND
7
EP912 TDRS
6
GNDL
5
R982 ISTA
4
R983 10 IKEY
3
R996 10 THRI
2
10 VDD1R5
1
52808-2470
J813
R1101 SHSK 1
1
R1102 10 SHSK 0
2
10 DGND
3
R1103 FRWT
4
R1104 10 D FXS
5
R1105 10 DFR S
6
R1106 10 D X1S
7
R1107 10 SYNCIO
8
R1108 10 SPS0
9
R1109 10 SST1
10
R1110 10 SST2
11
R1111 10 SDAT
12
R1112 10 SC K
13
10 DGND
14
GND
15
R1113 D RESD S
16
EP1113 10 SST
17
EP1114 MPZ1608S221A SSR
18
R1115 MPZ1608S221A DRES
19
EP1116 10 SMUT
20
EP1117 MPZ1608S221A SATT
21
MPZ1608S221A GND
22
52808-2271
J814
GND
1
R1118 D SCL
2
R1119 1K DSDA
3
R1120 1K DDAT
4
R1121 DCK
1K
5
R1122 1K DSTB
6
EP1123 1K DSON
7
EP1124 MMZ1608B301CT DSAP
8
MMZ1608B301CT GND
9
OCS
10
ODAT
11
R1125 10 OCK
12
R1126 10 GND
13
R1127 10 OSS2
14
R1128 10 OSS1
15
R1129 10 GND
16
52808-1671
0.1
1
2
3
4
J816
GND
16
R1016 UNLK
15
R1017 10 D RESH
14
R1018 10 PDAT
13
R1019 10
PCK
12
10
R1020 CN21
11
10
R1021 CN22
10
R1022 10 PST
9
R1023 10 PSL
8
10
GND
7
GND
6
EP918 MPZ2012S331A T8V
5
GND
4
EP919 MPZ2012S331A R8V
3
GND
2
GND
1
52808-1671
MPZ2012S331A X4 J107
VBUS1
EP105 GND_ 1
1 1
D- 1
R103 D+1
2 2
D+1
R104 0 D- 1
3 3
EP102 0 VBUS1 GND_ 1
4 4
5
[USB]
XM7A-0441
6
EP115 GND_ 2 J108
7
VBUS2
R114 D+2
8 1
R113 0 D- 2 D- 2
9 2
D+2
EP112 0 VBUS2
10 3
GND_ 2
4
XM7A-0441
J109
B10B-ZR-SM4-TF
USB BOARD