Icom IC-7700 Service Manual page 93

LOGIC UNIT (LOGIC-2)
VDD3R3
J1
1 30
2 29
SH_A21 FROM_A21 3 28
SH_A19 FROM_A19 4 27
SH_A17 FROM_A17 5 26
6 25
SH_A15 FROM_A15
SH_A13 GROM_A13 7 24
SH_A11 FROM_A11 8 23
SH_A9 FROM_A9 9 22
SH_A7 FROM_A7 10 21
11 20
SH_A5 FROM_A5
SH_A3 FROM_A3 12 19
SH_A1 FROM_A1 13 18
SH_A23 FROM_A23 14 17
15 16
A XK5S30045P
MEMORY BOARD
J1 IC 1
1
A22
A22
+3R3V 1 30 +3R3V CE01 2
CE
+3R3V 2 29 A22 A21 3
A21
A21 3 28 A20 A20 4
A20
A19 4 27 A18 A19 5
A19
5 26 6
A17 A16 A18
A18
A15 6 25 A14 A17 7
A17
A13 7 24 A12 A16 8
A16
A11 8 23 A10 C1 9
A15
VCC
9 22 0. 1 10
A9 A8
A15
A7 10 21 A6 A14 11
A14
A5 11 20 A4 A13 12
A13
A3 12 19 A2 A12 13
A12
A1 13 18 A0 CE00 14
CE0
14 17 15
A23 GND VPEN
VPEN
GND 15 16 GND RP# 16
RP#
A11 17
A11
A10 18
A10
19
AXK6S30545 A9
A9
A8 20
A8
21
GND
A7 22
A7
A6 23
A6
24
A5
A5
A4 25
A4
A3 26
A3
A2 27
A2
28
A1
A1
JS28F128J3D
PLD_RES
SYS_RES#
DPL_UB#
DPL_UB#
DPL_LB#
DPL_LB#
DPL_CE#
DPL_CE#
DPL_OE #
DPL_OE #
DPL_RD/WR #
DPL_RD/WR#
DPL_SEM#
DPL_SEM#
D PL_INT#
DPL_INT#
DPL_BUSY#
DPL_BUSY#
H8_A1 2
H8_A12
H8_A1 1
H8_A11
H8_A1 0
H8_A10
H8_A9
H8_A9
H8_A8
H8_A8
H8_A7
H8_A7
H8_A6
H8_A6
H8_A5
H8_A5
H8_A4 DPL_LB#
H8_A4
H8_A3 DPL_UB#
H8_A3
H8_A2 DPL_CE#
H8_A2
H8_A1 DPL_SEM#
H8_A1
DPL_RD/WR#
H8_D15 D PL_OE#
H8_D15
H8_D14
H8_D14
H8_D13
H8_D13
H8_D12
H8_D12
H8_D11
H8_D11
H8_D10
H8_D10
H8_D9
H8_D9
H8_D8
H8_D8
H8_D7
H8_D7
H8_D6
H8_D6
H8_D5
H8_D5
H8_D4
H8_D4
H8_D3
H8_D3
H8_D2
H8_D2
H8_D1
H8_D1
H8_D0
H8_D0
10 - 3
VDD3R3
J2 A XK5S40045P
+3R3V 1 40 +3R3V
2 39
FROM_A22 SH_A22 FROM_CE01 +3R3V
FROM_A20 SH_A20 FR_CS0# FROM_CE00 3 38 FROM_CE11
FROM_A18 SH_A18 FROM_CE02 4 37 FROM_CE10 FR_CS1#
FROM_A16 SH_A16 FROM_CE21 5 36 FROM_CE12
6 35
FROM_A14 SH_A14 FR_CS2# FROM_CE20 FROM_CD31
FROM_A12 SH_A12 FROM_CE22 7 34 FROM_CE30 FR_CS3#
FROM_A10 SH_A10 FR_VPEN FROM_VPEN 8 33 FROM_CE32
FROM_A8 SH_A8 9 32 FROM_WE # SH_WE1#
FROM_A6 SH_A6 SH_RD# FROM_OE# 10 31 FROM_STS
FR_STS
11 30
FROM_A4 SH_A4 SH_D15 FROM_D15 FROM_D7 SH_D7
FROM_A2 SH_A2 SH_D14 FROM_D14 12 29 FROM_D6 SH_D6
FROM_A0 SH_A0 SH_D13 FROM_D13 13 28 FROM_D5 SH_D5
SH_D12 FROM_D12 14 27 FROM_D4 SH_D4
15 26
SH_D11 FROM_D11 FROM_D3 SH_D3
SH_D10 FROM_D10 16 25 FROM_D2 SH_D2
SH_D9 FROM_D9 17 24 FROM_D1 SH_D1
SH_D8 FROM_D8 18 23 FROM_D0 SH_D0
19 22
FROM_BYTE#
20 21
SYS_RES# FROM_RP#
+3R3V
IC 2
56 1 56
A22
A24 A22 A24
55 WE# CE11 2 55 WE # J2
WE# CE WE#
54 OE# A21 3 54 OE #
OE# A21 OE#
53 STS A20 4 53 STS +3R3V 1 40 +3R3V
STS A20 STS
52 D15 A19 5 52 D15 CE01 2 39 +3R3V
DQ15 A19 DQ15
51 6 51 3 38
D7 A18 D7 CE00 CE11
DQ7 A18 DQ7
50 D14 A17 7 50 D14 CE02 4 37 CE10
DQ14 A17 DQ14
49 D6 A16 8 49 D6 CE21 5 36 CE12
DQ6 A16 DQ6
48 9 48 CE20 6 35 CE31
C4
GND VCC GND
47 10 47 7 34
D13 A15 0. 1 D13 CE22 CE30
DQ13 A15 DQ13
46
D5 A14 11 46 D5 VPEN 8 33 CE32
DQ5 A14 DQ5
45 D12 A13 12 45 D12 RP# 9 32 WE#
DQ12 A13 DQ12
44 D4 A12 13 44 D4 OE# 10 31 STS
DQ4 A12 DQ4
43 C2 14 43 C5 D1 5 11 30 D7
CE10
VCCQ CE0 VCCQ
42 15 42 12 29
0. 1 VPEN 0. 1 D1 4 D6
GND VPEN GND
41 D11 RP# 16 41 D11 D1 3 13 28 D5
DQ11 RP# DQ11
40 D3 A11 17 40 D3 D1 2 14 27 D4
DQ3 A11
DQ3
39 D10 A10 18 39 D10 D1 1 15 26 D3
DQ10 A10 DQ10
38 19 38 16 25
D2 A9 D2 D1 0 D2
DQ2 A9 DQ2
C3
37 A8 20 37 C6 D9 17 24 D1
VCC A8 VCC
36 0.1 D9 21 36 0. 1 D9 D8 18 23 D0
DQ9 GND DQ9
35 D1 A7 22 35 D1 GND 19 22 # BYTE#
DQ1 A7 DQ1
34 D8 A6 23 34 D8 GND 20 21 GND
DQ8 A6 DQ8
33 24 33
D0 A5 D0
DQ0 A5 DQ0
32 A0 A4 25 32 A0
A0 A4 A0
31 BYTE# A3 26 31 BYTE# AXK6S40545P
BYTE# A3
BYTE#
30 A23 A2 27 30 A23
A23 A2 A23
29 28 29
A1
CE2 A1 CE 2
JS28F128J3D
CS1
VDD3R3
H8_A7 SH_A6
A6L A5R
H8_A8 76 50 SH_A7
A7L A6R
H8_A9 77 49
SH_A8
A8L A7R
78 48
H8_A10 SH_A9
A9L A8R
H8_A11 79 47 SH_A10
A10L A9R
H8_A12 80 46 SH_A11
A11L
A10R
81 45
SH_A12
N/C A11R
82 44
LB L N/C
83 43 DPR_LB#
UBL LBR
84 42 DPR_UB#
CEL UBR
85 41 DPR_CE#
SEM L CER
86 40 DPR_SEM #
R/WL IC51 SEMR
87 39
VCC GND
88 38 DPR_RD/WR#
OEL I DT70V24L15PFG R/WR
H8_D0 89 37 DPR_OE#
I/O0L OER
H8_D1 90 36
SH_D15
I/O1L I /O15R
91 35
GND GND
H8_D2 92 34 SH_D14
I/O2L I /O14R
H8_D3 93 33 SH_D13
I/O3L I /O13R
H8_D4 94 32
SH_D12
I/O4L I /O12R
H8_D5 95 31
SH_D11
I/O5L I /O11R
96 30
H8_D6 SH_D10
I/O6L I /O10R
H8_D7 97 29 SH_D9
I/O7L I/O9R
H8_D8 98 28 SH_D8
I/O8L I/O8R
H8_D9 99 27
SH_D7
I/O9L I/O7R
100 26
VDD3R3 VDD3R3
IC1 IC2
1 54 1
VDD VSS VDD
SH_D0 2 53 SH_D15 SH_D16 2
DQ0 DQ15 DQ0
3 52 3
VDDQ VSSQ VDDQ
4 51 4
SH_D1 SH_D14 SH_D17
DQ1 DQ14 DQ1
50
SH_D2 5 SH_D13 SH_D18 5
DQ2 DQ13 DQ2
49
6 6
VSSQ VDDQ VSSQ
SH_D3 7 48 SH_D12 SH_D19 7
DQ3 DQ12 DQ3
SH_D4 8 47 SH_D11 SH_D20 8
DQ4 DQ11 DQ4
9 46 9
VDDQ VSSQ VDDQ
SH_D5 10 45 SH_D10 SH_D21 10
DQ5 DQ10 DQ5
SH_D6 11 44 SH_D9 SH_D22 11
DQ6 DQ9 DQ6
12 43 12
VSSQ VDDQ VSSQ
13 42 13
SH_D7 SH_D8 SH_D23
DQ7 DQ8 DQ7
41
14 14
VDD VSS VDD
SH_DQM0 15 40 SH_DQM2 15
DQML NC DQML
SH_RD/WR# 16 39 SH_DQM1 SH_RD/WR# 16
WE# DQMH WE #
SH_RD# 17 38 SH_CKIO SH_RD# 17
CAS# CLK CAS #
18 37 18
SH_RAS # SH_CKE SH_RAS#
RAS# CKE RAS#
SH_CS3# 19 36 SH_A14 SH_CS3# 19
CS# A12 CS#
SH_A15 20 35 SH_A13 SH_A15 20
BA0 A11 BA0
SH_A16 21 34 SH_A11 SH_A16 21
BA1 A9 BA1
22 33 SH_A12 22
SH_A12 SH_A10
A10 A8 A10
SH_A2 23 32 SH_A9 SH_A2 23
A0 A7 A0
SH_A3 24 31 SH_A8 SH_A3 24
A1 A6 A1
SH_A4 25 30 SH_A7 SH_A4 25
A2 A5 A2
SH_A5 26 29 SH_A6 SH_A5 26
A3 A4 A3
27 28 27
VDD VSS VDD
MT48LC16M16A2P MT48LC16M16A2P
DE_ENA
DE_IN
EX_VS
EX_HS
DO_HS
DO_VS
PLL_ENABLEN#
VDD3R3
I MRE1
1 75
SH_A13
I/O2 GND
2 74
NC I/O4
SH_CS2# 3 73
I/O2/GTS1 NC
SH_CS1# 4 72 I MRE0
I/O2/GTS2 I/O4
5 71
VCCINT I/O4
6 70
SH_CS0#
I/O2 I/O4
7 69
NC GND
SH_D0 8 68
I/O4
I/O2
SH_D1 9 67
I/O2 I/O4
10 66
SH_D2
I/O2 I/O4
SH_D3 11 65
I/O2 I/O3
SH_D4 12 64
I/O2 IC52 I/O4
SH_D5 13 63
I/O1 I/O3
SH_D6 14 62
I/O1 XC9572X L GND
15 61
SH_D7
I/O1 I/O3
SH_A0 16 60
I/O1 I/O3
SH_A1 17 59 CP103
I/O1 I/O3
SH_A2 18 58 CP104
I/O1 I/O3
19 57
CP105
NC VCCINT
SH_IRL3# 20 56
I/O1 I/O3
21 55 FR_CS3#
GND I/O3
22 54 FR_CS2#
I /O1/GCK1 I/O3
23 53 FR_CS1#
SH_WE0#
I /O1/GCK2 I/O3
24 52
FR_CS0#
NC I/O3
SH_WE1# 25 51
I/O1 VCCIO
TCK
To LOGIC-4 TMS
TDO0
TDO1
VDD3R3
1
2
3
4
5
VDD3R3
6
IC54
J52 1 5
2
B6B-PH-SM4-TB To LOGIC-1
LG_RES
3 4
VDD3R3
TC7S14FU
S51 IC53
1 5
OUT CD
2
VDD
3 4
VSS NC
LS8J2M R3112N281A
54
VSS
53 SH_D31
DQ15
52
VSSQ
51
SH_D30
DQ14
50
SH_D29
DQ13
49
VDDQ
48 SH_D28
DQ12
47 SH_D27
DQ11
46
VSSQ
45 SH_D26
DQ10
44 SH_D25
DQ9
43
VDDQ
42
SH_D24
DQ8
41
VSS
40
NC
39 SH_DQM3
DQMH
38 SH_CKIO
CLK
37
SH_CKE
CKE
36 SH_A14
A12
35 SH_A13
A11
34 SH_A11
A9
33
SH_A10
A8
32
SH_A9
A7
31 SH_A8
A6
30 SH_A7
A5
29 SH_A6
A4
28
VSS
MTXD
CISEL
IMS8
D51 D6 0
1SS355 1SS355
TFRA
IMS7
D6 1
1SS355
RXF3
IMS6
D6 2
1SS355
I MR1
RXF2
IMS5
I MR0
D6 3
IMS8
1SS355
IMS7
IMS6
RXF1 EMER
IMS5 IMS4
IMS4
D55 D6 4
IMS3
IMS2
1SS355 1SS355
IMS1 RXF0 KANA
IMS0 IMS3
D6 5
1SS355
MTON
DLTX
TXF3
IMS1
TXF2 D6 7
1SS355
TXF1 RX50
IMS0
D59 D6 8
1SS355 1SS355
TXF0 TX50
I MR0
I MRE0
R55 1K
I MR1
I MRE1
R56 1K
TDO0
VDD3R3
MTXD1
MTXD1
RTTY Decode(1)
MRXD1#
CISEL
CISEL
MTXD2
MTXD2
RTTY Decode(2) MRXD2#
100K
IC56
R57
1 8
2 7
R58
VDD3R3
3 6
4 5
100K
IC55
1 5
TC7WH04F
2
3 4
SYS_RES#
TC7SH04FU