![background image](http://html.mh-extra.com/html/icom/ic-7800/ic-7800_service-manual-addendum_612348529.webp)
11 - 5
11-16 LOGIC UNIT AND MEMORY BOARD
VOLTAGE LINE
Explanatory notes
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
A22
A20
A18
A16
A14
A12
A10
A8
A6
A4
A2
A0
GND
GND
VDD3R3
VDD3R3
A21
A19
A17
A15
A13
A11
A9
A7
A5
A3
A1
A23
GND
A1
A2
B2
A3
C3
A4
B5
A5
B10
C7
B4
D5
C5
A6
B6
C6
D6
D7
A7
B7
A8
B8
C17
C11
C8
D8
A9
C9
D9
B9
D10
D11
A10
C10
C18
C14
A11
B12
A12
C12
B11
D12
A13
B13
C13
D13
D15
D14
F19
B14
A14
A15
C15
B15
A16
D16
B16
C16
A17
B17
B19
A18
A19
A20
D17
B18
B20
C19
C20
E17
D18
D19
K19
G19
D20
AD3
E19
E20
F20
F18
F17
G17
H17
H18
G20
H19
K17
G18
H20
J17
J18
J19
J20
K18
K20
L17
L19
L20
R19
L18
M17
M18
M19
M20
N18
N17
N20
P19
P20
R20
R17
P17
W19
N19
T19
R18
T20
U19
T18
T17
U20
U18
V20
V19
V18
P18
W20
Y20
Y19
Y18
W18
Y17
W17
V17
U17
Y16
W15
W14
W16
V16
U16
Y15
V15
Y14
U15
U14
Y13
W13
V13
U13
W11
V14
Y12
W12
V12
U12
Y11
V11
U11
U10
Y10
W10
W6
V10
Y9
W9
V9
U9
Y8
W8
V8
U8
Y7
Y6
U6
U7
W2
W7
V6
Y5
W5
V5
U5
Y4
W4
V4
Y3
W3
V3
V7
Y2
Y1
B3
C4
G3
F2
D4
B1
C2
C1
D3
D2
D1
E4
E3
E2
G2
L4
G4
F4
E1
F3
F1
G1
H4
H3
H2
H1
J4
J3
K3
L3
J2
J1
K4
K2
K1
L2
M4
M3
M1
M2
P3
L1
N3
P1
N2
N1
P4
R4
N4
R3
R1
T4
T3
T2
P2
R2
T1
U4
U3
U2
U1
V2
V1
W1
R172 22k
R120 10k
R121 10k
R122 10k
R123 10k
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
13
12
14
11
10
9
8
7
6
15
5
16
4
3
17
2
33
18
19
1
20
21
22
23
24
25
26
27
28
32
29
30
31
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
2
16
18
20
19
21
17
15
13
14
10
12
11
9
8
7
6
5
4
3
1
23
22
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
CE01
C3 0.1
C4 0.1
C5 0.1
C1 0.1
C2 0.1
C6 0.1
1
2
3
4
5
6
7
8
CLKC
VDD
GND
XTALIN
XTALOUT
XBUF
CLKD
CPUCLK
SHUTDOWN/OE
S2/SUSPEND
VDD
S1
S0
GND
CLKA
CLKB
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
59
58
57
56
55
54
53
52
51
60
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
R134 10
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
CP54
CP55
CP56
CP57
CP58
CP59
CP60
CP61
CP103
CP104
CP105
R159
10k
R132 10k
R133 10k
R128 10k
R129 10k
CP101
CP102
C117 0.1
R131 10k
R130 10k
R135 10
R136 10
C111 10
C113 10
C115 10
C112 0.1
C114 0.1
C116 0.1
C118 0.1
C119 0.1
C120 0.1
C66 0.1
R58 100k
R57 100k
C141 0.1
8
7
6
5
1
2
3
4
5
4
3
2
1
IC56
TC7WH04FU
IC102
TC7S08F
C103 0.1
C104 0.1
C122 0.1
C123 0.001
C107 0.1
C108 0.1
C109 0.1
C110 0.1
C106 0.1
C105 0.1
R116 10k
R115 10k
R114 10k
R113 10k
R117 33
R118 10k
R119 10k
C102 0.1
R126 10k
R125 4.7k
R124 100k
R127 10k
R153 10
R146 47
R147 47
R173 22k
R174 22k
R175 22k
R171 22k
R170 22k
C121 0.1
C124 0.1
R138
10k
R137 1
R139
10k
R141 47
R140 47
R144 47
R142 47
R145 47
R143 47
R148 47
C125 0.1
C126 0.1
C127 0.1
C128 0.1
C131 0.1
C132 0.1
C133 0.1
C134 0.1
C137 0.1
C138 0.1
C139 0.1
C140 0.01
C129 0.1
C130 0.1
C135 0.1
C136 0.1
R149 47
R150 47
R151 47
R152 47
R154 47
R155 47
R156 47
R1 4.7k
EP101
EP102
R165 0
R166 0
R167 0
EP103
14
13
12
11
10
9
8
1
2
3
4
5
6
7
C149 0.1
C148 0.1
R163
100
R161 27
IC105
CY2292F
CR-751
X101
R162 1M
C147 12p
C146 12p
C145
0.1
C144 0.1
IC104
TC7SHU04FU
R164 27
S
1B1
1B2
1A
2B1
2B2
2A
GND
VCC
OE
4B1
4B2
4A
3B1
3B2
3A
C101 0.1
R104 4.7k
R101 100k
IC101
SN74CBTLV3257PWR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
R105 4.7k
R103 4.7k
R102 4.7k
C61 20p
R51 4.7k
IC54
TC7S14FU
IC55
TC7SH04FU
C65 0.1
5
4
1
2
3
C64 0.1
C63 0.027
R52 10k
IC53
R3112N281A
OUT
VDD
VSS
CD
NC
R112 10k
R111 10k
R110 10k
R109 10k
R108 10k
R107 10k
R106 10k
BUS LINE3
VDD1R5
BUS LINE1
IC1
E28F128J3C
IC2
E28F128J3C
A22
CE
A21
A20
A19
A18
A17
A16
VCC
A15
A14
A13
A12
CE0
VPEN
RP#
A11
A10
A9
A8
GND
A7
A6
A5
A4
A3
A2
A1
A24
WE#
OE#
STS
DQ15
DQ7
DQ14
DQ6
GND
DQ13
DQ5
DQ12
DQ4
VCCQ
GND
DQ11
DQ3
DQ10
DQ2
VCC
DQ9
DQ1
DQ8
DQ0
A0
BYTE#
A23
CE2
WE#
A24
A22
CE
A21
A20
A19
A18
A17
A16
VCC
A15
A14
A13
A12
CE0
VPEN
RP#
A11
A10
A9
A8
GND
A7
A6
A5
A4
A3
A2
A1
OE#
STS
DQ15
DQ7
DQ14
DQ6
GND
DQ13
DQ5
DQ12
DQ4
VCCQ
GND
DQ11
DQ3
DQ10
DQ2
VCC
DQ9
DQ1
DQ8
DQ0
A0
BYTE#
A23
CE2
WE#
OE#
STS
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
D9
D1
D8
D0
A0
BYTE#
A23
A22
CE01
A21
A20
A19
A18
A17
A16
A15
A14
A13
A12
CE00
VPEN
RP#
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
OE#
WE#
STS
D15
D7
D14
D6
D13
D5
D12
D4
D11
D3
D10
D2
D9
D1
D8
D0
A0
BYTE#
A23
A22
CE11
A21
A20
A19
A18
A17
A16
A15
A14
A13
A12
CE10
VPEN
RP#
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
CE12
CE02
J2
VDD3R3
CE00
CE02
VPEN
RP#
OE#
D15
D14
D13
D12
D11
D10
D9
D8
GND
GND
CE12
WE#
STS
D7
D6
D5
D4
D3
D2
D1
D0
BYTE#
J1
J1
J2
VDD3R3
VDD3R3
VDD3R3
CE01
CE00
CE02
CE21
CE20
CE22
VPEN
RP#
OE#
D15
D14
D13
D12
D11
D10
D9
D8
GND
GND
CE11
FR_CS0#
FR_CS1#
FR_CS2#
FR_CS3#
SH_WE1#
SH_RD#
SH_D7
SH_D15
SH_D6
SH_D14
SH_D5
SH_D13
SH_D4
SH_D12
SH_D3
SH_D11
SH_D2
SH_D10
SH_D1
SH_D9
SH_D0
SH_D8
VDD3R3
VDD3R3
VDD3R3
A22
A21
A20
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
A23
GND
GND
GND
SH_A22
SH_A21
SH_A20
SH_A19
SH_A18
SH_A17
SH_A16
SH_A15
SH_A14
SH_A13
SH_A12
SH_A11
SH_A10
SH_A9
SH_A8
SH_A7
SH_A6
SH_A5
SH_A4
SH_A3
SH_A2
SH_A1
SH_A0
SH_A23
R157 10k
R158 10k
C142 0.1
HDI_TCK
HDI_TMS
HDI_TDI
HDI_TDO
ASEBRK#
TCK
IC1
MT48LC16M16A2TG
IC2
MT48LC16M16A2TG
VDD
DQ0
VDDQ
DQ1
DQ2
VSSQ
DQ3
DQ4
VDDQ
DQ5
DQ6
VSSQ
DQ7
VDD
DQML
WE#
CAS#
RAS#
CS#
BA0
BA1
A10
A0
A1
A2
A3
VDD
SH_D0
SH_D1
SH_D2
SH_D3
SH_D4
SH_D5
SH_D6
SH_D7
SH_DQM0
SH_RD/WR#
SH_RD#
SH_RAS#
SH_CS3#
SH_A15
SH_A16
SH_A12
SH_A2
SH_A3
SH_A4
SH_A5
VSS
DQ15
VSSQ
DQ14
DQ13
VDDQ
DQ12
DQ11
VSSQ
DQ10
DQ9
VDDQ
DQ8
VSS
NC
DQMH
CLK
CKE
A12
A11
A9
A8
A7
A6
A5
A4
VSS
SH_D15
SH_D14
SH_D13
SH_D12
SH_D11
SH_D10
SH_D9
SH_D8
SH_DQM1
SH_CKIO
SH_CKE
SH_A14
SH_A13
SH_A11
SH_A10
SH_A9
SH_A8
SH_A7
SH_A6
VDD
DQ0
VDDQ
DQ1
DQ2
VSSQ
DQ3
DQ4
VDDQ
DQ5
DQ6
VSSQ
DQ7
VDD
DQML
WE#
CAS#
RAS#
CS#
BA0
BA1
A10
A0
A1
A2
A3
VDD
VSS
DQ15
VSSQ
DQ14
DQ13
VDDQ
DQ12
DQ11
VSSQ
DQ10
DQ9
VDDQ
DQ8
VSS
NC
DQMH
CLK
CKE
A12
A11
A9
A8
A7
A6
A5
A4
VSS
SH_D31
SH_D30
SH_D29
SH_D28
SH_D27
SH_D26
SH_D25
SH_D24
SH_DQM3
SH_CKIO
SH_CKE
SH_A14
SH_A13
SH_A11
SH_A10
SH_A9
SH_A8
SH_A7
SH_A6
SH_D16
SH_D17
SH_D18
SH_D19
SH_D20
SH_D21
SH_D22
SH_D23
SH_DQM2
SH_RD/WR#
SH_RD#
SH_RAS#
SH_CS3#
SH_A15
SH_A16
SH_A12
SH_A2
SH_A3
SH_A4
SH_A5
C52 0.1
C53 0.1
C51 0.1
A6L
A7L
A8L
A9L
A10L
A11L
N/C
LBL
UBL
CEL
SEML
R/WL
VCC
OEL
I/O0L
I/O1L
GND
I/O2L
I/O3L
I/O4L
I/O5L
I/O6L
I/O7L
I/O8L
I/O9L
N/C
N/C
N/C
N/C
I/O10L
I/O11L
I/O12L
I/O13L
GND
I/O14L
I/O15L
VCC
GND
I/O0R
I/O1R
I/O2R
VCC
I/O3R
I/O4R
I/O5R
I/O6R
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
A5L
A4L
A3L
A2L
A1L
A0L
INTL
BU
S
Y
L
GND
M/S
BU
S
Y
R
INTR
A0R
A1R
A2R
A3R
A4R
N/C
N/C
N/C
N/C
A5R
A6R
A7R
A8R
A9R
A10R
A11R
N/C
LBR
UBR
CER
SEMR
GND
R/WR
OER
I/O15R
GND
I/O14R
I/O13R
I/O12R
I/O11R
I/O10R
I/O9R
I/O8R
I/O7R
IC51
IDT70V24S25PF
I/O
NC
I/O/GTS1
I/O/GTS2
VCCCINT3.3V
I/O
NC
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
NC
GND
I/O/GCK1
I/O/GCK2
NC
SH_A13
SH_CS2#
SH_CS1#
SH_CS0#
SH_D0
SH_D1
SH_D2
SH_D3
SH_D4
SH_D5
SH_D6
SH_D7
SH_A0
SH_A1
SH_A2
SH_IRL3#
SH_WE0#
SH_WE1#
VCCIO2.5V/3.3V
I/O/GCK3
I/O
I/O
I/O
GND
I/O
I/O
NC
I/O
I/O
I/O
VCCIO2.5V/3.3V
I/O
I/O
I/O
I/O
NC
GND
TDI
NC
TMS
TCK
I/O
I/O
SH_RD#
SH_RD/WR#
SH_RD
Y#
SH_A24
SH_MDSEL
SH_A25
DPR_B
USY#
DPR_INT#
DPR_CE#
DPR_SEM#
DPR_OE#
DPR_RD/WR#
TDI
TMS
TCK
DPR_UB#
DPR_LB#
GND
I/O/GSR
VCCINT3.3V
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
VCCIO2.5V/3.3V
GND
TDO
NC
EX_VS
EX_HS
DO_HS
DO_VS
PLL_ENABLEN#
FR_VPEN
FR_STS
GND
I/O
NC
I/O
I/O
I/O
GND
I/O
I/O
I/O
I/O
I/O
I/O
GND
I/O
I/O
I/O
I/O
VCCINT3.3V
I/O
I/O
I/O
I/O
I/O
VCCIO2.5V/3.3V
FR_CS3#
FR_CS2#
FR_CS1#
FR_CS0#
SH_A6
SH_A7
SH_A8
SH_A9
SH_A10
SH_A11
SH_A12
DPR_LB#
DPR_UB#
DPR_CE#
DPR_SEM#
DPR_RD/WR#
DPR_OE#
SH_D15
SH_D14
SH_D13
SH_D12
SH_D11
SH_D10
SH_D9
SH_D8
SH_D7
H8_A7
H8_A8
H8_A9
H8_A10
H8_A11
H8_A12
DPL_LB#
DPL_UB#
DPL_CE#
DPL_SEM#
DPL_RD/WR#
DPL_OE#
HS_D0
HS_D1
H8_D2
H8_D3
H8_D4
H8_D5
H8_D6
H8_D7
H8_D8
H8_D9
H8_D10
H8_D11
H8_D12
H8_D13
H8_D14
H8_D15
SH_D0
SH_D1
SH_D2
SH_D3
SH_D4
SH_D5
SH_D6
H8_A6
H8_A5
H8_A4
H8_A3
H8_A2
H8_A1
DPL_INT#
DPL_B
USY#
DPR_B
USY#
DPR_INT#
SH_A1
SH_A2
SH_A3
SH_A4
SH_A5
IC52
XC9572XL
LG_RES
MD1/TXD2
PCI_REQ2#
MD9/PCI_REQ2#
MD2/RXD2
MD10/PCI_REQ3#
1
2
3
5
4
1
2
3
5
4
1
2
3
5
4
PCI_CLK1
PCI_CLK2
PCI_CLK0
IC106
TC74VCX04FT
MD4
MD6
MD7
MD0
MD3
MD5
MD8
MRXD1#
MRXD2#
MRXD1#
MRXD2#
XTAL2
EXTAL2
VDD-RTC
VSS-RTC
CA
RESET
TRST
MRESET
NMI
BACK/BSREQ
BREQ/BSACK
MD6/IOIS16
RDY
TXD
VDDQ
VSSQ
VDD
VSS
MD2/RXD2
RXD
TCLK
MD8/RTS2
SCK
MD1/TXD2
MD0/SCK2
MD7/CTS2
AUDSYNC
AUDCK
VDDQ
VSSQ
AUDATA0
AUDATA1
VDD
VSS
AUDATA2
AUDATA3
NC
MD3/CE2A
MD4/CE2B
MD5
VDDQ
VSSQ
DACK0
DACK1
DRAK0
DRAK1
VDD
VSS
STATUS0
STATUS1
DREQ0
DREQ1
ASEBRK/BRKACK
TDO
VDDQ
VSSQ
VDD-PLL2
VSS-PLL2
VDD-PLL1
VSS-PLL1
VDD-CPG
VSS -CPG
XTAL
EXTAL
TMS
TCK
VDDQ
VSSQ
TDI
CS0
CS1
CS4
CS5
CS6
BS
WE0/REG
WE1
D0
VDDQ
VSSQ
VDD
VSS
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
VDDQ
VSSQ
D11
D12
D13
D14
D15
CAS0/DQM0
CAS1/DQM1
RD/WR
CKIO
NC
VDDQ
VSSQ
NC
RD/CASS/FRAME
CKE
RAS
VDD
VSS
CS2
CS3
A0
A1
A2
A3
VDDQ
VSSQ
A4
A5
A6
A7
A8
A9
A10
A11
VDDQ
NC
IRL3
IRL2
IRL1
IRL0
AD0
AD1
VSSQ
VDDQ
AD2
E18
AD4
AD5
AD6
AD7
VSS
VDD
C/BE0
AD8
AD9
AD10
VSSQ
VDDQ
AD11
AD12
AD13
AD14
AD15
C/BE1
PA
R
PERR
PCILOCK
PCIST
OP
VSSQ
VDDQ
DEVSEL
TRD
Y
IRD
Y
PCIFRAME
C/BE2
AD16
AD17
AD18
AD19
AD20
VSS
VDD
VSSQ
VDDQ
AD21
AD22
AD23
C/BE3
AD24
AD25
AD26
AD27
AD28
AD29
VSSQ
VDDQ
AD30
AD31
SERR
PCIREQ1/GNTIN
PCIGNT1/REQOUT
PCICLK
PCIRST
INTA
IDSEL
PCIREQ2/MD9
VSSQ
VDDQ
PCIREQ3/MD10
PCIREQ4
PCIGNT2
PCIGNT3
PCIGNT4
SLEEP
VSS
VDD
WE3/ICIOWR
WE2/ICIORD
A25
A24
VSSQ
VDDQ
A23
A22
A21
A20
A19
A18
VSS
VDD
D31
D30
VSSQ
VDDQ
D29
D28
D27
D26
D25
D24
D23
D22
D21
D20
VSS
VDD
VSSQ
VDDQ
D19
D18
D17
D16
CAS3/DQM3
CAS2/DQM2
A17
A16
A15
A14
VSSQ
VDDQ
A13
A12
IC103
HD6417751RBP200
SYS_RES#
SYS_RES#
HDI_TRST#
MD6
SH_RDY#
MTXD1
MD2/RXD2
MRXD1
MD8
CISEL
MD1/TXD2
MD0
MD7
MD3
MD4
MD5
SH_DACK0
SH_DRAK0
SH_DREQ0#
ASEBRK#
HDI_TDO
VDD3R3
SH_CS0#
SH_CS1#
SH_CS4#
SH_BS#
SH_WE0#
SH_WE1#
SH_D0
SH_D1
SH_D2
SH_D3
SH_D4
SH_D5
SH_D6
SH_D7
SH_D8
SH_D9
SH_D10
SH_D11
SH_D12
SH_D13
SH_D14
SH_D15
SH_DQM0
SH_DQM1
SH_RD/WR#
SH_CKIO
SH_RD#
SH_CKE
SH_RAS#
SH_CS2#
SH_CS3#
SH_A0
SH_A1
SH_A2
SH_A3
SH_A4
SH_A5
SH_A6
SH_A7
SH_A8
SH_A9
SH_A10
SH_A11
PCI_SERR#
PCI_REQ1#
PCI_GNT1#
PCI_CLK0
PCI_RST#
PCI_INTA#
PCI_IDSEL
MD9/PCI_REQ2#
MD10/PCI_REQ3#
PCI_GNT2#
SH_A25
SH_A24
SH_A23
SH_A22
SH_A21
SH_A20
SH_A19
SH_A18
SH_D31
SH_D30
SH_D29
SH_D28
SH_D27
SH_D26
SH_D25
SH_D24
SH_D23
SH_D22
SH_D21
SH_D20
SH_D19
SH_D18
SH_D17
SH_D16
SH_A17
SH_A16
SH_A15
SH_A14
SH_A13
SH_A12
SH_DQM3
SH_DQM2
SH_IRL3#
SH_IRL2#
SH_IRL1#
SH_IRL0#
PCI_AD0
PCI_AD1
PCI_AD2
PCI_AD3
PCI_AD4
PCI_AD5
PCI_AD6
PCI_AD7
PCI_C/BE0#
PCI_AD8
PCI_AD9
PCI_AD10
PCI_AD11
PCI_AD12
PCI_AD13
PCI_AD14
PCI_AD15
PCI_C/BE1#
PCI_P
AR
PCI_PERR#
PCI_ST
OP#
PCI_DEVSEL#
PCI_TRD
Y#
PCI_IRD
Y#
PCI_FRAME#
PCI_C/BE2#
PCI_AD16
PCI_AD17
PCI_AD18
PCI_AD19
PCI_AD20
PCI_AD21
PCI_AD22
PCI_AD23
PCI_C/BE3#
PCI_AD24
PCI_AD25
PCI_AD26
PCI_AD27
PCI_AD28
PCI_AD29
PCI_AD30
PCI_AD31
BYTE#
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD1R5
VDD1R5
VDD1R5
VDD1R5
VDD3R3
VDD1R5
VDD3R3
VDD1R5
VDD3R3
VDD1R5
VDD1R5
VDD1R5
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
SYS_RES#
C1 0.1
C2 0.1
C3 0.1
C4 0.1
C5 0.1
C6 0.1
C7 0.1
C9 0.1
C8 0.1
C10 0.1
C11 0.1
C12 0.1
C13 0.1
C14 0.1
HDI_TMS
HDI_TCK
HDI_TDI
SYS_RES#
CLK_25M
MEMORY BOARD
VDD3R3
CE02
CE12
VDD3R3
VDD3R3
CE11
NC
NC
NC
NC
NC
NC
NC
CE10
CE12
CE31
CE30
CE32
STS
D7
D6
D5
D4
D3
D2
D1
D0
GND
VDD3R3
SYS_RES#
PCI_REQ2#
VDD1R5
SH_CK
SH_CK
SH_CK
SH_CK
VDD1R5
HDI_TRST#
SYS_RES#
VDD1R5
VDD1R5
VDD1R5
VDD3R3
VDD1R5
VDD1R5
R176 22k
VDD1R5
VDD1R5
BUS LINE2
VDD1R5
LOGIC
UNIT
(2)
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
VDD3R3
MRXD2
MRXD2
MRXD2
MRXD2
MRXD1
MRXD1
VDD3R3
SYS_RES#
C54 0.1
VDD3R3
C55 0.1
C56 0.1
C57 0.1
C58 0.1
C59 0.1
C60 0.1
VDD3R3
VDD3R3
VDD3R3
SH_CK
SH_CK
SH_CK
VDD3R3
VDD3R3
PLD_RES
PLD_RES
PLD_RES
TDO0
to LOGIC unit(3)
to LOGIC unit(2)
SYS_RES#
SH_MDSEL
SH_MDSEL
to LOGIC unit(4)J825
MTXD2
SH_MDSEL
MRXD2
SYS_RES#
C62 0.1
S51
SKQDPA
PLD_RES
LOGIC UNIT (1)
WE1#
PCI_REQ2#
PCI_REQ2#
SH_CK
VDD1R5
1 30
1 30
1 40
1 40
FR_VPEN
FR_STS
PLD_RES
VDD3R3
VDD3R3
3.18V
1.56V
3.18V
3.17V
0.0V
3.19V
range: input impedance
200mV: 100M
Ω
2V: 11M
Ω
20V,200V,1000V: 10M
Ω
MESUREMENT CONDITIONS
SCOPE ATT: 0dB
voltage at RX(no instruction)
frequency: 14.1 MHz
mode: J3E(USB)
Digital tester
ANT(RX): no input
(TX): no modulation
D60
1SS355
D61
1SS355
D62
1SS355
D63
1SS355
D64
1SS355
D65
1SS355
D66
1SS355
D67
1SS355
D68
1SS355
D51
1SS355
D52
1SS355
D53
1SS355
D54
1SS355
D55
1SS355
D56
1SS355
D57
1SS355
D58
1SS355
D59
1SS355
R55
1k
R56 1k
IMS8
IMS7
IMS6
IMS5
IMS4
IMS3
IMS2
IMS1
IMS0
IMR0
IMRE0
IMR1
IMRE1
D53
D52
D51
D54
D55
D56
D57
D58
D59
D63
D64
D66
[USA][EUR][DEN][AUS][UK]
[FRA][DEN][KOR][ESP][UK]
except [FRA]
except [JPN][FRA][AUS]
[JPN][EUR][ITR][ESP][AUS][UK]
[FRA][DEN][KOR][ESP][UK]
[USA][EUR][DEN][AUS][UK]
except [JPN][FRA][AUS]
[JPN][EUR][ITR][ESP][AUS][UK]
[JPN]
[JPN]
[EUR][FRA][ITR][AUS][UK]
IMR1
IMRE0
IMR0
IMS8
IMS7
IMS6
IMS5
IMS4
IMS3
IMS2
IMS1
IMS0
IMRE1
Summary of Contents for IC-7800
Page 1: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 65 VOLTAGE DIAGRAM 67 Dec 2009 ...
Page 79: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 60 VOLTAGE DIAGRAM 64 Feb 2009 ...
Page 157: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 57 VOLTAGE DIAGRAM 59 Aug 2008 ...
Page 245: ...SERVICE MANUAL ADDENDUM CONTENTS PARTS LIST 1 BOARD LAYOUTS 57 VOLTAGE DIAGRAM 59 Jul 2008 ...
Page 333: ...THE TRANSCEIVER i7800 SERVICE MANUAL S 14015HZ C1 2 Mar 2006 ...
Page 555: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 14015HZ C1 2 C 2004 2006 Icom Inc ...