Icom IC-7800 Service Manual Addendum page 531

LOGIC UNIT (3)
VDD3R3
VDD3R3
VDD1R5
VDD1R5
BUS LINE1
R405 10k
VDD3R3 CD1#
R410 10k R406 10k
INPACK# VS1#
R411 10k R407 10k
BVD2 VS2#
R412 10k R408 10k
BVD1 CD2#
AUD_CLK
R413 10k R409 10k
WP WAIT#
R414 10k
RDY/BSY#
CF_VCC
USB1HM R322 27 USB1_HM
USB1HP R323 27 USB1_HP
VDD3R3
USB2HM R326 27
LOGIC
UNIT
USB2HP R327 27
(2)
VDD3R3 VDD3R3
IC207
TC7W04F
USB1PENC 1 8
2 7
USB2PENC 3 6
4 5
IC208
µPD16875G
1 8 USB1_5V
CTL1 OUT1
USB1OVC 2 7
FLG1 IN
USB2OVC 3 6
BUS LINE4 FLG2 GND
4 5 USB2_5V
CTL2 OUT2
AUD_CLK
VDD3R3A
IC209
AK5355VT
1 16
VCOM TST1
SUB_RX 2 15
RIN NC
MAIN_RX 3 14 R334 47k
LIN DIF
4 13 AD_PDN0
VSS PDN
VDD3R3A 5 12 SSI0_SCK
VA BCLK
VDD3R3A 6 11
VD MCLK
7 10 SSI0_FSY
SEL LRCK
8 9 SSI0_SDATA
NC SDTO
AUD_CLK
IC210
AK5355VT
1 16
VCOM TST1
VOX 2 15
RIN NC
MIC 3 14 R338 47k
LIN DIF
4 13 AD_PDN1
VSS PDN
VDD3R3A 5 12 SSI1_SCK
VA BCLK
VDD3R3A 6 11
VD MCLK
7 10 SSI1_FSY
SEL LRCK
8 9 SSI1_SDATA
NC SDTO
AUD_CLK
IC211
R340
AK4384VT
47
AUD_CLK 1 16
MCLK DZFL
SSI2_SCK 2 15
BICK DZFR
SSI2_SDATA 3 14 VDD5A
SDTI VDD
SSI2_FSY 4 13
LRCK VSS
DA_PDN0 5 12
PDN VCOM
DA_CCS0 6 11 MAIN_AF
SMUTE/CSN AOUTL
DA_CCK 7 10 SUB_AF
ACKS/CCLK AOUTR
DA_CDAT 8 9
DIFO/CDTI P/S
IC212
R342
AK4384VT
47
AUD_CLK 1 16
MCLK DZFL
SSI3_SCK 2 15
BICK DZFR
SSI3_SDATA 3 14 VDD5A
SDTI VDD
SSI3_FSY 4 13
LRCK VSS
DA_PDN1 5 12
PDN VCOM
DA_CCS1 6 11 MOD
SMUTE/CSN AOUTL
DA_CCK 7 10
ACKS/CCLK AOUTR
DA_CDAT 8 9
DIFO/CDTI P/S
BUS LINE5
VDD5A VDD5A
VDD5A
VDD5 VDD5
VDD5
BUS LINE3
VDD3R3
VDD1R5
CF_VCC
VDD3R3
PCI_REQ1# 1
REQ
PCI_GNT1# 2
GNT
PCI_AD31 3
AD31
PCI_AD30 4
AD30
PCI_AD29 5
AD29
6
GND
PCI_AD28 7
AD28
PCI_AD27 8
AD27
PCI_AD26 9
AD26
PCI_AD25 10
AD25
PCI_AD24 11
AD24
PCI_C/BE3# 12
C/BE3
R401 100 13
IDSEL
VDD3R3 14
VCC
PCI_AD23 15
AD23
PCI_AD22 16
AD22
PCI_AD21 17
AD21
VDD3R3 18
IC401
VCCP
PCI_AD20 19 PCI1410APGE
AD20
PCI_RST# 20
RST
PCI_CLK1 21
PCLK
22
GND
PCI_AD19 23
AD19
PCI_AD18 24
AD18
PCI_AD17 25
AD17
PCI_AD16 26
AD16
PCI_C/BE2# 27
C/BE2
PCI_FRAME# 28
FRAME
PCI_IRDY# 29
IRDY
VDD3R3 30
VCC
PCI_TRDY# 31
TRDY
PCI_DEVSEL# 32
DEVSEL
PCI_STOP# 33
STOP
PCI_PERR# 34
PERR
PCI_SERR# 35
SERR
PCI_PAR 36
PAR
VDD3R3
VDD5
VDD3R3 VDD3R3
IC403
BR93LC46FW
1 8
NC NC
VDD3R3 2 7
VCC GND
3 6
CS DO
4 5
SK DI
PCI_AD5 39
AD5
40
GND
PCI_AD4 41
AD4
PCI_AD3 42
AD3
PCI_AD2 43
AD2
PCI_AD1 44
AD1
PCI_AD0 45
AD0
VDD3R3 46
VDD
47
MA0
48
MA1
49
MA2
50
EECS
51
IC404
MA3
52 RTL8139C+
MA4
53
MA5
54
NC
55
GND
56
GND
57
MA6/9356SEL
VDD3R3 58
VDD
VDD3R3 59
VDD
60
MA7
61
MA8
62
GND
63
MA9
64
MA10
R419
1k
VDD3R3
VDD5A
VDD5
VDD3R3A
VDD3R3
VDD1R5
CF_VCC
VDD3R3
108
CCLK
107 VDD3R3
CDEVSEL
106 WE#
CGNT
105
CSTOP
104
CPERR
103
CBLOCK
102
VCC
101
CPAR
100
RSVD
99 CFA8
CC/BE1
98
CAD16
97 CFA9
CAD14
96 IOWR#
CAD15
95
CAD12
94
GND
93 IORD#
CAD13
92 OE#
CAD11
91 CE2# FORL R609 1k
CAD10
90 CF_VCC REFL R610 1k
VCCCB
89 CFA10 ALCL R611 1k
CAD9
88 CE1# IDL R612 1k
CC/BE0
87 CFD15 VDL R613 1k
CAD8
86 THML R614 1k
VCC
85 CFD7 FANI R615 1k
CAD7
84 CFD14 EPAD R616 1k
RSVD
83 CFD6
CAD5
82 CFD13
CAD6
81 CFD5
CAD3
80 CFD12
CAD4
79 CFD4
CAD1
78
GND
77 CFD11
CAD2
76 CFD3
CAD0
75 CD1#
CCD1
74
R628 47k
VCCD1
73
VCCD0
R627 47k
LTXD
LRXD
THRI
PWRS
VDD3R3 VDD3R3
IC402
TPS2211AIDBR
1 16 R415 10k IC603
VCCD0 SHDN
BU9480F
2 15 R416 10k
VCCD1 VPPD0 METS 1
VDD3R3 3 14 R417 10k OUTR
3.3V VPPD1 MEREF 2
VDD3R3 4 13 REF
3.3V AVCC 3
VDD5 5 12 GND SDATA
5V AVCC METM 4
6 11 OUTL
5V AVCC
7 10
GND AVPP
8 9
OC 12V
VDD3R3
VDD5
VDD3R3
IC610
HN58X2464TI
1
A0
2
A1
3
A2
4
VSS
VDD3R3
128 PCI_AD24
AD24
127 PCI_AD25
AD25
126 PCI_AD26
AD26
125 PCI_AD27
AD27
124
GND
123 PCI_AD28
AD28
122 PCI_AD29 H8_A13
AD29
121 PCI_AD30
AD30
120 PCI_AD31 H8_CS6#
AD31
119 VDD3R3 H8_CS7#
VDD
118 PCI_REQ2#
REQB
117 PCI_GNT2#
GNTB
116 PCI_CLK2
CLK
115 PCI_RST# H8_D8
RSTB
114 SH_IRL1# H8_D9
INTAB
113 H8_D10
GND
112 H8_D11
GND
111 H8_A0
GND
110 H8_A1
ROMCSB
109 VDD3R3 H8_A2
VDD
108 H8_D12
MD0
107 H8_D13
MD1
106 VDD3R3 H8_D14
VDD
105 H8_D15
MD2
104
MD3
103 R423 10k VDD3R3 H8_IRQ15#
MD4
H8_HWR#
H8_LWR#
H8_WAIT#
R424 10k
EP402
EP401
EP403
H8_RD#
DS401 SML-512MW
R425 330
VDD3R3
DS402 SML-512MW
R426 330
DS403 SML-512MW
R427 330
3.18V 3.18V
VDD5A
VDD5
VDD3R3A
VDD3R3
VDD1R5
VDD3R3
R607 180
X601 CR-755
VDD3R3
SQLSM 109
PG2/CS2/RAS2/RAS
SQLSS 110
PG3/CS3/RAS3/CAS
111
AVCC
112
VREF
113
P40/AN0
114
P41/AN1
115
P42/AN2
116
P43/AN3
117
P44/AN4
118
P45/AN5
119
P46/AN6/DA0
120
P47/AN7/DA1
DX1A 121
P90/AN8
DX1B 122
P91/AN9
DX1T 123
P92/AN10
DX1S 124
P93/AN11
125
P94/AN12/DA2
126
IC604
P95/AN13/DA3
IKEY 127 HD64F2377VFQ33V
P96/AN14/DA4
SKYS 128
P97/AN15/DA5
129
AVSS
JPG4 130
PG4/BREQO
JPG5 131
PG5/BACK
JPG6 132
PG6/BREQ
133
P50/TXD2/IRQ0
134
P51/RXD2/IRQ1
DSKY 135
P52/SCK2/IRQ2
JP53 136
P53/ADTRG/IRQ3
137
P35/SCK1/SCL0/(OE)/(CKE)
METCK 138
P34/SCK0/SCK4/SDA0
139
H8_RXD1
P33/RXD1/SCL1
METLR 140
P32/RXD0/IRRXD/SDA1
FZTX 141
P31/TXD1
METDT 142
P30/TXD0/IRTXD
143
MD0
144
MD1
8 VDD3R3
VCC
7 METCK
BCLK
METDT
6
5 METLR
LRCLK
VDD3R3
D867 MA742
8
VCC
7
WP
6
SCL
5
SDA
VDD3R3 VDD3R3
1 75
I/O GND
2 74 DULSA
NC I/O
3 73
I/O/GTS1 NC
4 72 TNDA
I/O/GTS2 I/O
5 71 RTDA
VCCINT3.3V I/O
6 70 VSQA
I/O I/O
7 69
NC GND
8 68 DFXA
I/O I/O
9 67 DFRA
I/O I/O
10 66 ASTB2
I/O I/O
11 65 ASTB1
I/O I/O
12 64 MSTB2
IC605
I/O I/O
13 XC9572XL 63 MSTB1
I/O I/O
14 62
I/O GND
15 61 DSTBB
I/O I/O
16 60 DSAPB
I/O I/O
17 59 DSONB
I/O I/O
18 58 DSTBA
I/O I/O
19 57
NC VCCINT3.3V
20 56 DSAPA
I/O I/O
21 55 DSONA
GND I/O
22 54 RSTBB
I/O/GCK1 I/O
23 53 RSTBA
I/O/GCK2 I/O
24 52 OCS
NC I/O
25 51
I/O VCCIO2.5V/3.3V
VDD3R3
VDD5A VDD5A
VDD5 VDD5
VDD3R3A VDD3R3A
11 - 7
VDD3R3
VDD3R3
VDD1R5
VDD1R5
BUS LINE1
RES#
R608
4.7k
VDD3R3
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
LOGIC
PE2/D2
64 H8_D1
PE1/D1
UNIT
63 H8_D0
PE0/D0
62 (4)
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)
55 CRXD/CBSY
P24/PO4/TIOCA4/RXD4/(IRQ12)
54 CTXD
P23/PO3/TIOCD3/TXD4/(IRQ11)
53
P22/PO2/TIOCC3/(IRQ10)
52 MDAT
P21/PO1/TIOCB3/(IRQ9)
51 MCK
P20/PO0/TIOCA3/(IRQ8)
50
VSS
49 PSTB
P17/PO15/TIOCB2/TCLKD/EDRAK3
48 PSLB
P16/PO14/TIOCA2/EDRAK2
47 PSTA
P15/PO13/TIOCB1/TCLKC
46 PSLA
P14/PO12/TIOCA1
45 CON2
P13/PO11/TIOCD0/TCLKB
44
P12/PO10/TIOCC0/TCLKA
43 PDAT/CON1
P11/PO9/TIOCB0
42
PCK/CON0
P10/PO8/TIOCA0
PH3/CS7/(IRQ7)/(OE)/CKE 41
VCC
40
NMI
39 WDTOVF
WDTOVF
38 H8_CS7#
37 H8_CS6#
PH2/CS6/(IRQ6)
R645
4.7k
BUS LINE6
MESUREMENT CONDITIONS
voltage at RX(no instruction)
frequency: 14.1 MHz
mode: J3E(USB)
ANT(RX): no input
Explanatory notes
(TX): no modulation
SCOPE ATT: 0dB
VOLTAGE LINE
Digital tester
range: input impedance
200mV: 100MΩ
2V: 11MΩ
20V,200V,1000V: 10M Ω
C602 0.1
VDD3R3
IC601 3.18V
TC7SH04FU
1 5
2
3 4 CRXD/CBSY
VDD3R3
VDD5
3.18V
IC602
TC7SET04FU
5 1
2 CTXD
4 3
R603
6.8k
VDD5
D601 R601
1SS355 33k
CI_V
Q602
2SA1576
4.75V
Q601
2SC4081
VDD5A
VDD5A
VDD5
VDD5
VDD3R3A
VDD3R3A
BUS LINE3