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Jul. 2008
80
VOLTAGE LINE
Explanatory notes
RX LINE
BPF UNIT (2)
VHDWA
R907 100
R906 100
R101 100
R102 100
R103 100
R104 100
R105 100
R106 100
R107 100
R108 100
VPR2A
B0A
B1A
B2A
B3A
B4A
B5A
B6A
B7A
B8A
B9A
B10A
B10WA
HF50A
ATT12A
ATT6A
ATT3A
R117 100
R118 100
R119 100
R120 100
R121 100
R122 100
R123 100
R124 100
VHDWIA
VPR2IA
BI0A
BI1A
BI2A
BI3A
BI4A
BI5A
BI6A
BI7A
BI8A
BI9A
BI10A
BI10WA
HF50IA
AT12IA
AT6IA
AT3IA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
VSS
NC
DATA
CLOCK
LCK
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
Q9
Q10
Q11
SO
OE
VDD
IC101
BU2099FV
C399
0.1
BPDAT
BPCKA
BPSTA
BI0A
BI1A
BI2A
BI3A
BI4A
BI10WA
BI10A
BI9A
BI8A
BI7A
BI6A
BI5A
11
1
2
3
4
5
6
7
8
9
10
12
13
14
15
16
17
18
19
20
VSS
NC
DATA
CLOCK
LCK
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
Q9
Q10
Q11
SO
OE
VDD
IC102
BU2099FV
C398
0.1
AT12IA
HF50IA
BPSTA
BPCKA
AT3IA
AT6IA
DW
S
P
A
DW
S
P
A
VHDWIA
VPR2IA
RSELA
TRVS
RMUTA
DWSPA
R133
10k
R134 100
R957 100
VHDWB
R956 100
R451 100
R468 100
R452 100
R453 100
R454 100
R467 100
R455 100
R456 100
R457 100
R458 100
VHDWIB
VPR2B
B0B
B1B
B2B
B3B
B4B
B5B
B6B
B7B
B8B
B9B
B10B
B10WB
HF50B
ATT12B
ATT6B
ATT3B
R469 100
R470 100
R471 100
R472 100
R473 100
R474 100
VPR2IB
BI0B
BI1B
BI2B
BI3B
BI4B
BI5B
BI6B
BI7B
BI8B
BI9B
BI10B
BI10WB
HF50IB
AT12IB
AT6IB
AT3IB
11
1
2
3
4
5
6
7
8
9
10
12
13
14
15
16
17
18
19
20
VSS
NC
DATA
CLOCK
LCK
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
Q9
Q10
Q11
SO
OE
VDD
IC401
BU2099FV
C499
0.1
BI1B
BI0B
BPSTB
BPCKA
BI3B
BI4B
BPDAT
BI2B
BI10WB
BI10B
BI9B
BI8B
BI7B
BI6B
BI5B
11
1
2
3
4
5
6
7
8
9
10
12
13
14
15
16
17
18
19
20
VSS
NC
DATA
CLOCK
LCK
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
Q9
Q10
Q11
SO
OE
VDD
IC402
BU2099FV
C498
0.1
AT12IB
HF50IB
BPSTB
BPCKA
AT3IB
AT6IB
VHDWIB
VPR2IB
R481
10k
R475
100
RMUTB
DWSPB
J1
to LOGIC
unit J812
L901 HF50ACC322513
L902 HF50ACC322513
R141 220
R142 220
R143 220
R441 220
R442 220
BPCKA
BPSTA
BPDAT
BPSTB
BPOE
BPOE
BPOE
BPOE
C902 47
C901 0.047
C903 0.047
C904 47
L903 10
L904 10
to MAIN
unit J802
J107
TRV-TX
J103
R388
2P-50
R387
10k
R386
2.2k
D391
1SV307
C389
1
C388
0.0047
D373
MA2S111
Q381
DTC114EU
Q387
DTC114EU
TR
VS
RL381
SIP-1A
R382
220
R381
4.7k
Q383
DTC114EU
Q384
DTC114EU
R383
100k
R385
680
R393
680
L391
330
C390
0.1
Q386
DTC144EU
Q385
DTC114EU
R390
10k
R391
R395
680
R396
680
100k
C391
0.1
D392
1SV307
D393
1SV307
R389
680
R394
680
L392
330
L393
82
C392
D954 MA2S111
0.1
C974 0.0047
a
J104
C402
CP107
CP507
CP106
CP506
1
RX_ANT
INA(BNC)
RL401
W506,W507
SIP-1A
C401
0.0047
D401
MA2S111
R401
220
Q403
DTA114EU
Q402
2SC4081
Q401
2SC4116
R402
100k
C405
330p
R404
0
R403
2.2k
D402
MA742
C403
2p
C404
22p
Q404
DTC144EU
C881
1
C876
0.0047
RL871
SIP-1A
D871
MA2S111
R871
220
Q872
2SC4081
Q871
DTA114EU
Q873
2SC4116
R872
100k
R874
0
C878
330p
R873
2.2k
D872
MA742
C880
2p
C879
22p
Q874
DTC144EU
J504
RX_ANT
INB(BNC)
+
-
D851
MA2S111
RL851
FTR-B4CA012Z
C854
0.0047
C853
0.0047
C855
0.0047
+
-
D852
MA2S111
C858
0.0047
C856
0.0047
RL852
FTR-B4CA012Z
C857
0.0047
R852
68
R851
150
C859
0.0047
RL853
FTR-B4CA012Z
C860
0.0047
C861
0.0047
D853
MA2S111
-
+
RL954
FTR-B4CA012Z
-
+
R855
100
R854
47
ATT6B
ATT6B
A
TT12B
HF50B
RMUTA
RMUTB
+
-
D854
MA2S111
C864
0.0047
C863
0.0047
RL854
FTR-B4CA012Z
C862
0.0047
R858
180
R857
22
+
-
D855 MA2S111
C865 0.0047
RL855
FTR-B4CA012Z
ATT3B
ATT3B
b
b
Q855
DTA114EU
DWSPB
R860
100
C905
0.0047
C906
0.0047
D873
MA2S111
-
+
RL402
FTR-B4CA012Z
J106
RX-ANT
from CTRL
board J351
J105
RX_ANT
OUTA(BNC)
J108
RX-ONLY
from ANT-SW
unit J3
RSELA
RSELA
BUS LINE1
+15V
BPF
UNIT
(1)
A
B
R384
680
R392
680
C393
0.015
C395
0.015
C394
1
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
T8V
T8V
T8V
T8V
T8V
T8V
T8V
T8V
T8V
T8V
T8V
T8V
T8V
T8V
MR8V
MR8V
RSELB
MR8V
MR8V
MR8V
MR8V
GND
BPCKA
BPSTA
BPDAT
BPOE
BPSTB
NC
+15V
+3R3V
BPOE
+15V
BPOE
BPOE
BPOE
BPOE
T8V
MR8V
GND
RMUTA
RMUTA
X-
VERTER
J505
RX_ANT
OUTB(BNC)
J506
RX-B
from ANT-SW
unit J2
+15V
+15V
+15V
+15V
+15V
A
CCESSORIES W2
A
CCESSORIES W2
L395
330
L394
330
C397
10
C396
0.1
3.25V
14.9V
display of TX frequency (MHz)
port
B0
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
range: input impedance
200mV: 100M
2V: 11M
20V,200V,1000V: 10M
MESUREMENT CONDITIONS
voltage at RX
frequency: 14.1 MHz
mode: J3E(USB)
Digital tester
ANT(RX): no input
(TX): no modulation
0.030000
1.599999
1.600000
1.999999
2.000000
2.999999
3.000000
3.999999
4.000000
5.999999
6.000000
7.999999
8.000000
10.999999
11.000000
14.999999
15.000000
21.999999
22.000000
29.999999
30.000000
60.000000
ATT
OFF
3dB
6dB
9dB
12dB
15dB
18dB
21dB
AT3A
L
H
L
H
L
H
L
H
AT12
L: 2.0V H: 15.0V
L
L
L
L
H
H
H
H
AT6
L
L
H
H
L
L
H
H
NETWORK BOARD
VOLTAGE LINE
Explanatory notes
TX LINE
NETWORK BOARD
RL40
VS-12MBU
C40
39p
C42
39p
C41
39p
C43
39p
J2
TUIN
TUIN
from/to CTRL
board J251
RL30
VS-12MBU
C30
82p
C32
82p
C31
82p
C33
82p
CI1
CI1
CI2
CI3
CO1
CO2
CO3
RL20
VS-12MBU
C22
150p
C20
150p
CI2
C21
150p
C23
150p
RL10
VS-12MBU
C5
200p
C3
200p
CI3
C4
200p
C6
200p
C34
82p
C36
82p
C37
82p
C35
82p
RL31
VS-12MBU
CP1
CP3
C1
150p
C2
150p
CP2
CP4
C24
150p
C26
150p
C27
150p
C25
150p
RL21
VS-12MBU
C7
200p
C9
200p
C10
200p
C8
200p
RL11
VS-12MBU
CO2
CO3
VHCI
RL41
VS-12MBU
C47
39p
C45
39p
J3
C46
39p
C44
39p
TUOT
TUOT
from/to CTRL
board J252
CO1
VHCO
VHCO
L50
LA-598
RL50
FTR-F1
C50
0.0047
RL60
VS-12MBU
C60
0.0047
C70
0.0047
RL70
VS-12MBU
RL80
VS-12MBU
C80
0.0047
L60
LA-593
L70
LA-492
L80
LA-492
L90
LA-493
VHFT
VHFT
VHFT
24T
24T
18T
18T
14T
14T
10T
10T
C90
0.0047
RL90
VS-12MBU
7T
7T
L100
LA-494
RL100
VS-12MBU
C100
0.0047
5T
5T
L110
LA-594
RL110
VS-12MBU
C110
0.0047
L120
LR-504
RL120
VS-12MBU
C120
0.0047
35T
35T
35T
L130
LR-505
L131
LR-505
J1
GND
GND
3R5M
5M
7M
10M
14M
18M
24M
VHF
GND
FANC
FANC
FANC
+15V
+15V
CO3
CO2
CO1
VHC0
VHCI NVHF
CI3
CI2
CI1
GND
GND
C259
0.0047
C258
0.0047
C257
0.0047
C256
0.0047
C255
0.0047
C254
0.0047
C253
0.0047
C252
0.0047
C209
0.0047
C208
0.0047
C207
0.0047
C206
0.0047
C205
0.0047
C204
0.0047
C203
0.0047
C202
0.0047
VHFT
24T
18T
14T
10T
7T
5T
35T
CI1
CI2
CI3
VHCI
VHCO
CO1
CO2
CO3
C300
0.0047
L300
R303
120
R302
2.2k
Q300
2SB1123
R301
2.2k
R300
2.2k
C301
0.0047
Q301
DTC114EU
J4
+15V
+15V
+15V
to CTRL
board J51
to
FAN
TFAN
GND
range: input impedance
MESUREMENT CONDITIONS
voltage at RX
frequency: 14.1 MHz
mode: J3E(USB)
Digital tester
TUNER ON
(TX): no modulation
7.5V
7.5V
6.7V
4.5V
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 ...