Icom IC-7700 Service Manual page 96

LOGIC UNIT (LOGIC-4)
VDD3R3
VDD3R3
VDD3R3
SQLS 109
PG2/CS2/RAS2/RAS
110
PG3/CS3/RAS3/CAS
111
THML
AVCC
112
FANI VREF
FORL R609 1K 113
FORL P40/AN0
REFL R610 1K 114
REFL P41/AN1
ALCL R611 1K 115
ALCL
P42/AN2
IDL R612 1K 116
IDL P43/AN3
117
VD L R613 1K
VDL P44/AN4
THM L R614 1K 118
P45/AN5
FANI R615 1K 119
P46/AN6/DA0
EPAD R616 1K 120
EPAD P47/AN7/DA1
121
DX1
P90/AN8
SHSK0 122
P91/AN9
SHSK1 123
P92/AN1 0
DX1S 124
P93/AN1 1
125
P94/AN12/DA2
VDD3R3 126
THRI
P95/AN13/DA3
I KEY 127
P96/AN14/DA4
SKYS 128
P97/AN15/DA5
129
AVSS
130
JPG4
PG4/BREQO
131
JPG5 PG5/BACK
132
JPG6 PG6/BREQ
133
LTXD
P50/TXD2/IRQ0
134
LRXD P51/RXD2/IRQ1
135
DSKY P52/SCK2/IRQ2
136
JP53 P53/ADTRG/IRQ3
137
PWRS PWRS
P35/SCK1/SCL0/(OE)/(CKE)
138
METCK
P34/SCK0/SCK4/SDA0
139
FZRX
P 33/RXD1/SCL1
140
METLR P32/RXD0/IRRXD/SDA1
141
FZTX P31/TXD1
142
METDT
P30/TXD0/IRTXD
143
MD0
VDD3R3 144
MD1
I C603
1 8
YOBI OUTR VCC
2 7 METCK
MEREF
REF BCLK
3 6 METDT
GND SDATA
4 5 METLR
OUTL LRCLK
METV
C625
10 BU9480F
VDD3R3
VDD3R3
J604
JPG4
10
JP53
9
WDTOVF
8
JRESI VDD3R3
7
JPG5
6
VDD3R3
JPG6 C628 0.1
5
RES#
4 I C609
1 14
3
2 13
2
3 12
RES#
1
4 11
52808-1071 FZRS 5 10
H8_RESET#
6 9
78
SYS_RES#
TC74HC08AF
VDD3R3
VDD3R3
C626 0.1
I C607
1 5
H8_FZM D
2
3 4 H8_MD2
VDD3R3
TC7S08F
VDD3R3
C627 0.1
I C608
1 5
H8_FZRD
2
3 4 FZRX
TC7S08 F
FZTX
FZTX
VDD3R3
VDD3R3
J602
1
CP601
FZRX_
2
FZTX
3
FZRS
4
5
FZMD
6
7
8
9
10
52808-1071
VDD3R3
R607
180
CRXD/CBSY
VDD3R3
X601
CR-755
CTXD
72
VCC
71 H8_D7
PE7/D7
70
VSS
69
H8_D6
PE6/D6
68 H8_D5
PE5/D5
67 H8_D4
PE4/D4
66 H8_D3
PE3/D3
65 H8_D2
PE2/D2
64
H8_D1
PE1/D1
63 H8_D0
PE0/D0
62
DCTL
61 SCK
P85/(IRQ5)/SCK3/EDACK3
60
SPS0
P84/(IRQ4)/EDACK2
59 SST1
P83/(IRQ3)/RXD3/ETEND3
58 ISTA
P27/PO7/TIOCB5/(IRQ15)
57 DSPR
P26/PO6/TIOCA5/(IRQ14)
56 DSPCK
P25/PO5/TIOCB4/(IRQ13)
I C604 55
P24/PO4/TIOCA4/RXD4/(IRQ12) CRXD/CBSY
54 H8_A13
P23/PO3/TIOCD3/TXD4/(IRQ11)
53
HD64F2377VFQ33V
P22/PO2/TIOCC3/(IRQ10)
52 MDAT H 8_CS6#
P21/PO1/TIOCB3/(IRQ9)
51
MCK H 8_CS7#
P20/PO0/TIOCA3/(IRQ8)
50
VSS
49
P17/PO15/TIOCB2/TCLKD/EDRAK3
48
P16/PO14/TIOCA2/EDRAK2
47 PST H8_D8
P15/PO13/TIOCB1/TCLKC
46 PS L H8_D9
P14/PO12/TIOCA1
45 CON2 H8_D10
P13/PO11/TIOCD0/TCLKB
44 H8_D11
P12/PO10/TIOCC0/TCLKA
43 PDAT/CON1 H8_A0
P11/PO9/TIOCB0
42
PCK/CON0 H8_A1
P10/PO8/TIOCA0
41 H8_A2
VCC
40 H8_D12
NMI
39 WDTOVF H8_D13
WDTOVF
38
H8_D14
PH3/CS7/(IRQ7)/(OE)/CKE
VDD3R3
37 H8_D15
PH2/CS6/(IRQ6)
H8_IRQ15#
H8_HWR #
H8_LWR#
H8_WAIT#
H8_CS7#
H 8_CS6#
H8_RD#
H8_A1 2
H8_A1 1
H8_A1 0
H8_A9
VDD3R3
VDD3R3 VDD3R3 H8_A8
H8_A7
C629
H8_A6
H8_A5
0.1
H8_A4
I C610 H8_A3
1 8 H8_A2
A0 VCC
2 7 H8_A1
A1 WP
3 6 EC K
A2 SCL
4 5
VSS SDA
HN58X2464TI H8_D15
H8_D14
H8_D13
H8_D12
H8_D11
H8_D10
H8_D9
H8_D8
H8_D7
H8_D6
H8_D5
H8_D4
H8_D3
H8_D2
H8_D1
H8_D0
VDD3R3 VDD3R3 VDD5
R603
C602
0.1
6.8K
I C601
5 1
2
4
3
Q602
TC7SH04FU 2SA1576
VDD5
1SS355
R601
D601
C601
CI-V
0.1
33K
I C602
5
1
2 R602
4 Q601
3
2SC4081
18K
TC7SET04FU
VDD3R3
1 75
I /O2 GND
2 74 DULS
NC I /O4
3 73
I/O2/GTS1 NC
4 72
I/O2/GTS2 I /O4
5 71
VCCINT I /O4
6 70 VSQL
I /O2 I /O4
7 69
NC GND
8 68
I /O2 I /O4
9
67
I /O2 I /O4
10 66
I /O2 I /O4
11 65 ASTB
I /O2 I /O3
12 64
RSTBT
I /O2 I C605 I /O4
13 63
MSTB
I /O1 I /O3
14 62
I /O1 GND
XC9572XL
15 61
I /O1 I /O3
16 60
I /O1 I /O3
17 59
I /O1 I /O3
18 58 DSTB
I /O1 I /O3
19 57
NC VCCINT
20 56 DSAP
I /O1 I /O3
21 55 DSON
GND I /O3
22 54
I/O1/GCK1 I /O3
23 53 RSTBR
I/O1/GCK2 I /O3
24 52
NC I /O3
25 51
I /O1 VCCIO
H8_A1 2
H8_A1 1
H8_A1 0
H8_A9
H8_A8
H8_A7
H8_A6
H8_A5
DPL_UB#
H8_A4 DPL_UB#
DPL_LB#
H8_A3 DPL_LB#
D PL_CE#
H8_A2 DPL_CE#
DPL_OE# PLD_RES
PLD_RES
H8_A1 DPL_OE#
DPL_RD/WR# TDO1
DPL_RD/WR# TDO1
DPL_SEM# TCK
DPL_SEM # TCK
D PL_INT# TM S
D PL_INT# TM S
D PL_BUSY # TDO0
H8_D1 5 D PL_BUSY# TDO0
H8_D1 4
H8_D1 3
H8_D1 2
H8_D1 1
H8_D1 0
H8_D9
H8_D8
H8_D7
H8_D6
H8_D5
H8_D4
H8_D3
H8_D2
H8_D1
H8_D0
MCK
MCK
MDAT
MDAT
DRESH
D RESH
DRES L
DRESL
DRESD
DRESD
FRWT
FRWT
DSPCK
DSPCK
+3R3 V
TX S
TXS
RXS
RX S
+3R3 V
DUL S
DULS
MHSK0
MHSK0
MHSK1
MHSK1
SKY S
SKYS
S ENI
S ENI
RTKI
R TKI
T RVI
T RVI
MUTEI
MUTEI
DX1
DX1
NSQ
NSQ
VSQ L
VSQ L
RTD
RTD
TND
TN D
TND DVOX
DVOX
RTD DAVOX
DAVOX
CTFL
CTFL
TRAS
DFX
TRAS
DFR EXRL1
EXRL1
EXRL2
EXRL2
SQ S
SQ S
SQLS
SQLS
A STB
ASTB
MSTB
MSTB
RSTBT
RSTBT
SST RSTBR
RSTBR
SSR DSPR
DSPR
DPST
DPST
DFR
DFR
DFX
DFX
DSKY
DSKY
+3R3 V
OCS
UNLK
UNLK
PCK/CON0
PCK/CON 0
PDAT/CON1 PDAT/CON1
CON2
CON2
PS L
PS L
PST
PS T
+3R3 V
THRI
THRI
I KEY
IKEY
ISTA
ISTA
FSTB
FSTB
C STB
CST B
DX1S
DX1S
SHSK0
SHSK0
SHSK1
SHSK1
DSD A
DSDA
SCK
SCK
SDAT
SDAT
SST1
SST 1
SPS0
SPS0
SST2
SST 2
SSYNCIO
SSYNCIO
DFRS
DFRS
DFXS
DFXS
OCS
OCS
OSS 1
OSS 1
OSS 2
OSS 2
DSTB
DSTB
DSON
DSON
DSAP
DSAP
DSCL
DSCL
SST
SST
SSR
SSR
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