Icom IC-7800 Service Manual page 184

CI-V
RS-232C USB LAN
J907
GND
9 9
NC
8 8
NC
7 7
RX-
6 6
NC
5 5
NC
4 4
RX+
3 3
TX-
2 2
SCOPE UNIT
TX+
1 1
J908
GND
1 1
VBUS1
2 2
D-1
3 3
D+1
4 4
GND
5 5
W16
to LOGIC unit J803
W131, W132
W178-W185 to LOGIC unit J825 W129, W130
W127, W128
OPC-1341
8900013020
MAIN UNIT
W1
OPC-1330
8900012910
J825
MTXD1
1 1
MRXD1#
2 2
GND
3 3
CISEL
4 4
MTXD2
5 5
MRXD2#
6 6
GND
7 7
GND
8 8
W13 to SCOPE unit J909
W14 to SCOPE unit J908
W12 to SCOPE unit J907 J802
TX+
1 1
TX-
2 2
RX+
3 3
NC
4 4
NC
5 5
RX-
6 6
NC
7 7
NC
8 8
GND
9 9
J203
J805
GND GND
20 1
GND GND
19 2
LRXD LRXD
18 3
LTXD LTXD
17 4
NC NC
16 5
LG_PWR LG_PWR
15 6
NC NC
14 7
LG_RES LG_RES
13 8
+3R3V +3R3C
12 9
GND GND
11 10
GND GND
W8
10 11
C15V C15V
9 OPC-1428 12
C15V C15V
8 8900013730 13
C15V C15V
14
7
NC NC
6 15
8V +8V
5 16
MSND MSND
4 17
GND GND
3 18
NC NC
2 19
VDD5V VDD5V
1 20
OPC-1333
8900012980
(VR-A BOARD) FRONT UNIT
(DISPLAY BOARD)
to MAIN unit J440
MAIN ACC (1) MAIN ACC (2)
MAIN SUB
J1 J2
SP SP
OUT OUT
EXT MONITOR
J11
J808
W83, W84
SCPT SCPT
J340 J341
AGCDET_A 2 1 IFIN_A GND1A GND1A
J1 2 1 AGCDET_B
GND 4 3 GND GND1A MCLK
4 3
SCPA
AFOUT_A 6 5 AGCOUT_A DRES DSPCK
6 5
GND 8 7 GND RTDA 8 7 DSPR
J2 +A5VA 10 9 +A5VA NSQA 10 9 DFRA
GND 12 11 GND DULSA 12 11 VSQA
SCPB
-12V 14 13 -12V GND1A 14 13 DSPCK
GND 16 15 GND TNDA 16 15 DX1A
J3
+D5VA 18 17 +D5VA FRWT 18 17 DFXA
GND
GND 20 19 GND1A 20 19 GND1A
SAD
+15V
+15V 22 21 D3R3V 22 21 D3R3V
GND1A 24 23 GND1A
D1R2V_SENS_A D1R2V_A
26 25
D1R2V_A D1R2V_A
28 27
GND1A
GND1A 30 29
J921 J961
AGCDET_A 1 2 IFIN_A GND1A 1 2 GND1A AGCDET_B
GND
3 4 GND GND1A 3 4 MCLK
W15
AFOUT_A
5 6 AGCOUT_A DRES 5 6 DSPCK
GND
7 8 GND RTDA 7 8 DSPR
+A5VA +A5VA DFRA
9 10 NSQA 9 10
GND GND VSQA
11 12 DULSA 11 12
-12V -12V GND1A DSPCK
OPC-1344 13 14 13 14
8900013010 GND 15 16 GND TNDA 15 DX1A
16
+D5VA 17 18 +D5VA FRWT 17 18 DFXA
GND 19 20 GND GND1A 19 20 GND1A
+15V 21 22 +15V D3R3V 21 22 D3R3V
GND1A 23 24 GND1A
D1R2V_SENS_A 25 26 D1R2V_A
D1R2V_A 27 28 D1R2V_A
DSP-A BOARD
GND1A 29 30 GND1A
W17
OPC-911A
8900015150
to SCOPE unit J3
W85, W86
J1301
SCPA
J421
T1LO
J561
T2LO
W2
J681
OPC-1330 T3LO
RXPLL-A
8900012910
J10
UNIT
M10M
J1002
HF RF IN
J1201
6m RF IN
J604
10
9
8
7
6
5
4
3
2
1
W3
OPC-1338
8900012920
LOGIC UNIT
J602
10
W9 W10
OPC-1343
8900012990
(CF BOARD)
10 - 2
SUB ACC (1) SUB ACC (2)
J3 J4
ALC SEND METER MEMO KEY
RELAY OUT KEY
MAIN UNIT
J360 J361 J381
J380
GND1B GND1B GND1T GND1T
2 1 IFIN_B 2 1 AFIN 2 1 ANVOX 2 1
GND GND GND1B MCLK GND1T MCLK
4 3 4 3 GND 4 3 GND 4 3
DRES DSPCK DRES DSPCK
AFOUT_B 6 5 AGCOUT_B 6 5 TX36K 6 5 GND 6 5
RTDB 7 DSPR DSKY 7 DSPR
GND 8 7 GND 8 GND 8 7 GND 8
NSQB 10 9 DFRB CTFL 10 9 DFRT
+A5VB 10 9 +A5VB +A5VT 10 9 +A5VT
GND GND DULSB 12 11 VSQB DAVOX 12 11 DSPCK
12 11 GND 12 11 GND
-12V -12V GND1B 14 13 DSPCK -12V -12V DVOX 14 13 DX1T
14 13 14 13
GND GND TNDB 16 15 DX1B GND FRWT 16 15 DFXT
16 15 GND 16 15
+D5VB +D5VB FRWT 18 17 DFXB +D5VT +D5VT GND1T 18 17 GND1T
18 17 18 17
GND 20 19 GND GND1B 20 19 GND1B GND GND D3R3V 20 19 D3R3V
20 19
+15V 22 21 +15V D3R3V 22 21 D3R3V +15V +15V GND1T 22 21 GND1T
22 21
D1R2V_T
GND1B 24 23 GND1B 24 23 D1R2V_T
D1R2V_SENS_B 26 25 D1R2V_B D1R2V_SENS_T 26 25 D1R2C_T
D1R2V_B GND1T GND1T
28 27 D1R2V_B 28 27
GND1B GND1T GND1T
GND1B 30 29 30 29
J921 J961 J921 J961
ANVOX GND1T
1 2 IFIN_B GND1B 1 2 GND1B AFIN 1 2 1 2 GND1T
GND GND GND1B GND GND MCLK
3 4 3 4 MCLK 3 4 GND1T 3 4
AFOUT_B AGCOUT_B DRES DSPCK TX36K GND DRES DSPCK
5 6 5 6 5 6 5 6
GND GND RTDB GND GND DSPR
7 8 7 8 DSPR 7 8 DSKY 7 8
+A5VB +A5VB NSQB DFRB +A5VT +A5VT CTFL DFRT
9 10 9 10 9 10 9 10
GND GND DULSB VSQB GND GND DAVOX DSPCK
11 12 11 12 11 12 11 12
-12V -12V GND1B DSPCK -12V -12V DVOX DX1T
13 14 13 14 13 14 13 14
GND 15 16 GND TNDB 15 DX1B GND 15 16 GND FRWT 15 DFXT
16 16
+D5VB 17 18 +D5VB FRWT 17 18 DFXB +D5VT 17 18 +D5VT GND1T 17 18 GND1T
GND 19 20 GND GND1B 19 20 GND1B GND 19 20 GND D3R3V 19 20 D3R3V
+15V +15V
+15V 21 22 D3R3V 21 22 D3R3V 21 22 +15V GND1T 21 22 GND1T
GND1B 23 24 GND1B D1R2V_T 23 24 D1R2V_T
D1R2V_SENS_B 25 26 D1R2V_B D1R2V_SENS_T 25 26 D1R2C_T
D1R2V_B 27 28 D1R2V_B GND1T 27 28 GND1T
DSP-B BOARD DSP-TX BOARD
GND1B 29 30 GND1B GND1T 29 30 GND1T
to SCOPE unit J2
W18
OPC-911A
8900015150
to DC-DC unit J2
J1501 P70
DIFB
1 1
GND
2 2
J681
DACK
RXPLL-B
UNIT
J10
W147, W148
S10M
J1002
HF RF IN
OSC
J1201
6m RF IN UNIT
W4
W11
OPC-1339 OPC-1335
8900012930 8900013000
9
8
7
6
J1 J2
5
4
J51
+3R3V 1 30 +3R3V +3R3V 1 40 +3R3V
3
2 VCC TCK +3R3V 2 29 A22 CE01 2 39 +3R3V
1 2
1 TDO TDI A21 3 28 A20 CE00 3 38 CE11
3 4
TMS GND A19 4 27 A18 CE02 4 37 CE10
5 6
A17 5 26 A16 CE21 5 36 CE12
A15 6 25 A14 CE20 6 35 CE31
A13 7 24 A12 CE22 7 34 CE30
A11 8 23 A10 VPEN 8 33 CE32
9 22 9 32
A9 A8 RP# WE#
10 21 10 31
A7 A6 OE# STS
11 20 11 30
A5 A4 D15 D7
12 19 12 29
A3 A2 D14 D6
13 18 13 28
A1 A0 D13 D5
14 17 14 27
A23 GND D12 D4
15 16 D11 15 26 D3
GND GND
D10 16 25 D2
D9 17 24 D1
D8 18 23 D0
GND 19 22 BYTE#
GND 20 21 GND
MEMORY BOARD
to PA unit MF1
SP1
DC REF X-VERTER RXANT RXANT RXANT RXANT
OUT I/O INA OUTA INB OUTB
W2 W2
ACC UNIT
J505
J490 J103 J104 J105 J504 J108
J492
RX-ONLY
1 1
DFAN
J506
GND 2 2
RX-B
J107
J802
W99, W100
TRV-TX TRV-TX
J440
MICI
1 1
MICE
2 2
PHOS
3 3
PHE
4 4
PHOM
5 5
PHE 6 6 J106
AFO 7 7 BPF RX-ANT
AFE 8 8
UNIT
J451
5 5
RXMREC
1 1 4 4
RXMRECE
2 2 3 3
RXSREC
3 3 2 2
RXSRECE
4 4 1 1
MPLAY
5 5
MPLAYE P2
6 6
SPLAY
7 7
SPLAYE
8 8
MICREC
9 9
MICRECE
10 10
MICPLAY
11 11
MICPLAYE
12 12
GND
13 13
J142
J2
SPO
1 1 TUIN
SPE
2 2
J3
TUOT
to PA 200W unit J1 W106, W107
to PA 200W unit J2
W101-W105
W108-W118
J252
TUOT
J251
TUIN
J351
RX-ANT
P51 J2
J501 T15V
1 1
PW
RF OUT-B 2 2
DIGISEL PX
3 3
PY
4 4
UNIT PZ
5 5
T15V
6 6
AW
7 7
AX
8 8
J1 AY
9 9
AZ
RF OUT-A
10 10
to MAIN unit J142
W5
W6
OPC-1337 OPC-1334
8900012940 8900012950
LOGIC UNIT
J2
W1
GND
11 11
W22
VDD5 H8V
10 10 10
GND H8V
9 9 9
+3R3V GND
8 8 8
+3R3V GND
7 7 7
+3R3V GND
6 6 6
DC-DC UNIT
+5V GND
5 5 5
+8V C15V
4 4 4
+15V C15V
3 3 3
-12V LG_PWR
2 2 2
6 LG_PWR
GND GND
1 1 1
to MAIN unit J450
J3
W176, W177
RX-ONLY
J2
W143, W144
RX-B
MF3
ANT1
J51
TUNER UNIT
J61 ANT2
5 5
4 4
3 3
2 2
1 1 ANT-SW
P53
MF2 MF1 UNIT
J4
J71 ANT3
TFAN 1 1
2 2
3 3
GND 4 4
NETWORK
BOARD
J1 J81 ANT4
TX/RX-A
W26
OPC-683A
8900014730
J301
TX/RX-A
J53 W27 J905
GND GND
1 1 1 1
GND GND
2 2 2 2
STB STB
3 3 3 3
CK CK
4 4 4 4
DATA DATA
5 5 5 5
OE OE
6 6 6 6
ANT4R ANT4R
7 7 7 7
+15V +15V
8 8 8 8
W161-W170 J902
J52
CTRL
GND GND
1 1 1 1
2M 2M
BOARD 2 2 2 2
3R5M 3R5M
3 3 3 3
5M 5M
4 4 4 4
18M 18M
5 5 5 5
14M 14M
6 6 6 6
24M 24M
7 7 7 7
10M 10M
8 8 8 8
7M 7M
9 9 9 9
50M 50M
10 10 10 10
FILTER
J101
J904
W24
CTIN CTIN
UNIT
to MAIN unit J801
W7
OPC-1340
8900012960
PA200W
BOARD
J2
THML
1 1
IDH
2 2
IDL
3 3
PAT8
4 4
GND
5 5
J5
+15V
1 1
+15V
2 2
to MAIN unit J451
GND
3 3
GND
4 4
W171-W174
+48V W1 EP501
1 1 +48V
+48V
2 2
1 NC 1 NC GND
3 3
7 NC 7 NC GND GND
4 4
2 H8V 2 H8V EP502
8 GND 8 GND
3 H8V 3 H8V
9 GND 9 GND
4 C15V 4 C15V
10 GND 10 GND
REG
5 C15V 5 C15V
11 GND 11 GND
UNIT
6 LG_PWR
12 GND 12 GND
PA
UNIT
to LOGIC unit J824
MF1