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5
10
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25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
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115
120
125
130
135
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155
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185
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235
240
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260
0
Horizontal
5
10
15
0
25
30
35
20
45
50
55
40
65
70
75
60
80
90
95
100
85
105
110
115
125
130
120
V
er
tical
to the SCOPE unit J11
SCPT
from the RXPLL-A unit J561
from/to the OSC unit J71
S/P DIF
OUT
from the RXPLL-A unit J681
to the BPF unit J107
to the PA200W board J1
from the RXPLL-B unit J681
from the RXPLL-A unit J421
S/P DIF
IN
REF
I/O
EXT
KEYPAD
EXT-SP
SUB
EXT-SP
MAIN
DC OUT
METER
KEY
RELAY
ALC
SUB ACC (2)
SUB ACC (1)
MAIN ACC (2)
MAIN ACC (1)
1
1
4
8
5
1
4
8
5
4
8 5
1
4
8
5
1
4
8
5
1
9
18
10
1
1
8
16
9
1
8
1
8
16
9
1
1
1
5
8
4
1
1
7
14
8
5
8
4
1
1
1
5
8
4
1
1
1
1
1
1
1
4
8
5
1
4
8
5
7
14
8
4
8
5
7
14
8
4
5
8
1
1
4
8
5
4
8
5
4
8
5
7
14
8
4
8
5
7
14
8
8
14
7
1
5
8
4
1
4
8
5
1
10
20
11
1
10
20
11
1
9
18
10
1
9
18
10
8
16
9
16
9
9
18
10
T2LO
REF IO
T3LO
TR
V
-TX
PAI
DACK
T1LO
GND
4
1
to the LOGIC
unit J826
J901
SPDI
GND
SPDO
CIVE
1
9
to the SCOPE
unit J906
2
10
J411
CIVE
CIVE
CV15V
LED1
CIV
VDD5
NC
LED0
GND
GND
5
1
to the PA200W
board J2
J430
PAT8
IDL
IDH
THML
DGND
1
29
to the SCOPE
unit J4
2
30
J410
DSPCK
DFXS
DXIS
SYNCIO
SDAT
SST1
SST2
+3R3V
-12V
+5V
AGND
+8V
SATT
SSA
DRES
SDR1
DFRS
FRWT
DGND
SCK
SPSO
AGND
+3R3V
+3R3V
AGND
T8V
SMUT
SSB
AGND
GND
1
to the RXPLL-B unit J1701
15
2
16
J403
MD
AT
GND
+8V
A
GCOB
NC
NC
+15V
MSTBB
MCK
GND
A
GCIB
+3R3V
-
12V
+15V
GND
2
to the LOGIC unit J808
40
1
39
J940
GND
METS
METM
SYNCIO
TNDB
R
TDB
VSQB
NSQB
DFXB
DX1B
DFRB
TND
A
RT
D
A
VSQA
NSQA
DX1A
DFXA
DFRA
DSPR
DSPCK
MUTEI
EP
AD
CTFL
DSKY
DA
VO
X
DV
O
X
DFTX
DXIT
DFR
T
FR
WT
DRES
RXIS
DFRS
DFXS
GND
SST2
SPSO
SST1
SD
AT
SCK
40
39
2
to the LOGIC unit J809
1
J900
CIVE
V
O
XAFE
MADT
MCK
MSTB1
MSTB2
ASTB1
ASTB2
RSTBA
RSTBB
SR8V
MR8V
T8V
ASND
SEND
SENI
R
TKI
TR
VI
EXRL2
EXRL1
CIV
V
O
XAF
LED0
LED1
GND
KEY
DULSB
DULSA
GND
SQLS
SQLM
SQLAS
SQLAM
THML
ALCL
VDL
IDL
FANV
REFV
FOR
V
8
to the VR-A board J2
1
J440
AFE
AFO
PHE
PHOM
PHE
PHOS
MICE
MICI
13
to the LOGIC unit J810
1
J451
GND
MICPLA
YE
MICPLA
Y
MICRECE
MICREC
SPLA
YE
SPLA
Y
MPLA
YE
MPLA
Y
RXSRECE
RXSREC
RXMRECE
RXMREC
2
to the CHASSIS
unit MF1
1
J492
DF
AN
GND
1
to the DSP-B board J961
29
2
30
J361
GND1B
MCLK
DSPCK
DSPR
DFRB
VSQB
DSPCK
DX1B
DFXB
GND1B
D3R3V
GND1B
D1R2V_B
D1R2V_B
GND1B
GND1B
GND1B
DRES
R
TDB
NSQB
DULSB
GND1B
TNDB
FR
WT
GND1B
D3R3V
GND1B
D1R2V_SENS_B
D1R2V_B
GND1B
30
2
to the DSP-TX
board J961
29
1
J381
GND1T
GND1T
D1R2V_SENS_T
D1R2V_T
GND1T
D3R3V
GND1T
FRWT
DVOX
DAVOX
CTFL
DSKY
DRES
GND1T
GND1T
GND1T
GND1T
D1R2C_T
D1R2V_T
GND1T
D3R3V
GND1T
DFXT
DX1T
DSPCK
DFRT
DSPR
DSPCK
MCLK
GND1T
1
to the DSP-A board J961
29
2
30
J341
GND1A
MCLK
DSPCK
DSPR
DFRA
VSQA
DSPCK
DX1A
DFXA
GND1A
D3R3V
GND1A
D1R2V_A
D1R2V_A
GND1A
GND1A
GND1A
DRES
RT
D
A
NSQL
DULSA
GND1A
TND
A
FR
WT
GND1A
D3R3V
GND1A
D1R2V_SENS_A
D1R2V_A
GND1A
1
12
to the DC-DC
unit J2
J450
GND
VDD5
GND
+3R3V
+3R3V
+3R3V
+5V
+8V
+15V
+8V
-12V
GND
1
2
to the LOGIC
unit J822
J142
SPE
SPO
to the RXPLL-B
unit J1501
1
3
J404
DIFB
NC
GND
GND
1
to the RXPLL-A
unit J1701
15
2
16
J400
MD
AT
GND
+8V
A
GCO
A
NC
NC
+15V
RSTBA
MCK
GND
A
GCIA
+3R3V
-
12V
+15V
GND
1
21
to the DSP-A board J960
2
22
J340
IFIN_A
GND
AGCOUT_A
GND
+A5V
A
GND
-
12V
GND
+D5V
A
GND
+15V
AGCDET_A
GND
AFOUT_A
GND
+A5V
A
GND
-
12V
GND
+D5V
A
GND
+15V
1
to the DSP-B board J960
21
2
22
J360
IFIN_B
GND
AGCOUT_B
GND
+A5VB
GND
-
12V
GND
+D5VB
GND
+15V
AGCDET_B
GND
AFOUT_B
GND
+A5VB
GND
-
12V
GND
+D5VB
GND
+15V
8-18 MAIN UNIT
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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 ...