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72
Feb 2009
VOLTAGE LINE
Explanatory notes
RX LINE
3p
C105
220
R57
0.0047
C64
10k
R104
FTR-B4CA012Z
RL63
47
R213
220
R50
1p
C129
FTR-B4CA012Z
DIGISEL UNIT (A)
RL2
220
R37
18p
C114
150p
C109
2p
C130
FTR-B4CA012Z
RL73
C110
2p
J1
18p
C115
100k
R216
L1
R58
180
R202
18p
C121
0.0047
C75
56p
C142
0.1
C201
220
R51
FTR-B4CA012Z
RL62
FTR-B4CA012Z
RL60
220
R38
100p
C104
0.0047
C59
FTR-B4CA012Z
RL52
10k
R207
0.0047
C212
C125 2.5p
0.0047
C71
1k
R6
220
R46
9p
C122
0.0047
C57
0.1
C4
270
R211
68p
C135
BU2099FV
IC5
1
VSS
2
NC
3
DATA
4
CLOCK
5
LCK
6
Q0
7
Q1
8
Q2
9
Q3
10
Q4
11
Q5
12
Q6
13
Q7
14
Q8
15
Q9
16
Q10
17
Q11
18
SO
19
OE
20
VDD
BU2099FV
IC4
1
VSS
2
NC
3
DATA
4
CLOCK
5
LCK
6
Q0
7
Q1
8
Q2
9
Q3
10
Q4
11
Q5
12
Q6
13
Q7
14
Q8
15
Q9
16
Q10
17
Q11
18
SO
19
OE
20
VDD
0.0047
C53
0.0047
C60
220
R52
FTR-B4CA012Z
RL51
J2
2p
C124
220
R42
Q201
2SC5551A-F-E
47p
C118
0.0047
C67
1k
R5
FTR-B4CA012Z
RL55
220
R47
150p
C106
270
R206
33
R208
0.0047
C63
0.1
C5
0.1
C206
CAT24C256XI
IC1
1
A0
2
A1
3
NC
4
VSS
5
SDA
6
SCL
7
WP
8
VCC
8p
C132
470p
C101
220
R53
0.1
C203
0.22
C211
220
R43
FTR-B4CA012Z
RL69
LR-493
L203
1k
R201
0.0047
C74
0.0047
C58
FTR-B4CA012Z
RL61
0.0047
C54
0.01
C202
220
R48
270
R210
0.0047
C35
100p
C138
150p
C108
0.0047
C207
10p
C208
0.01
C210
10k
R105
270p
C102
220
R40
FTR-B4CA012Z
RL54
150p
C107
0.1
C205
0.0047
C72
220
R45
FTR-B4CA012Z
RL56
0.0047
C209
0.0047
C70
0.0047
C51
1k
R4
18p
C119
100k
R1
220
R44
0.1
C204
0.0047
C213
36p
C134
FTR-B4CA012Z
RL66
0.0047
C21
0.1
C2
10k
R2
FTR-B4CA012Z
RL70
220
R41
FTR-B4CA012Z
RL72
0.0047
C62
0.5p
C128
120p
C136
FTR-B4CA012Z
RL64
220
R54
FTR-B4CA012Z
RL67
FTR-B4CA012Z
RL59
1k
R8
FTR-B4CA012Z
RL74
47
R203
18p
C116
0.0047
C52
FTR-B4CA012Z
RL21
XB15A204
D201
0.0047
C214
0.0047
C56
10k
R3
18p
C133
220
R39
180
R205
XB15A204
D202
220
R55
1k
R7
18p
C120
120p
C137
0.0047
C66
FTR-B4CA012Z
RL57
0.0047
C55
0.0047
C61
0.0047
C69
100p
C126
4p
C131
220
220
R35
1.5k
R215
0.1
C1
FTR-B4CA012Z
RL71
FTR-B4CA012Z
RL65
220
R56
FTR-B4CA012Z
RL53
220
R49
0.0047
C68
L107
LA-595
33p
C117
FTR-B4CA012Z
RL58
FTR-B4CA012Z
RL76
0.0047
C65
9p
C113
0.0047
C73
56p
C141
FTR-B4CA012Z
RL75
22
R209
220
R36
2.5p
C111
270p
C103
FTR-B4CA012Z
RL201
0.0047
C215
+3R3V
DCK
+15V
J10
to LOGIC
unit J813
DSCLB
DSDAB
DSTBB
DSONB
DSAPB
DIGISEL
UNIT (B)
HF50A
CC322513
L2
220
R204
220
R9
220
R10
DDAT
L3
L4
1k
R59
OE
CP1
CP3
CP2
CP4
L201
1.5k
R214
L101
LR-476
L102
LR-477
L103
LR-478
L104
LR-479
L105
LR-480
L106
LR-481
D53
1SS355
D63
1SS355
D75
1SS355
1SS355
D203
D52
1SS355
D56
1SS355
D21
1SS355
D66
1SS355
D68
1SS355
D69
1SS355
D67
1SS355
D57
1SS355
D61
1SS355
D58
1SS355
D71
1SS355
D65
1SS355
D62
1SS355
D74
1SS355
D51
1SS355
D72
1SS355
1SS355
D204
1SS355
D205
D54
1SS355
D55
1SS355
D70
1SS355
D59
1SS355
D73
1SS355
D64
1SS355
D60
1SS355
0
R100
180p
C139
180p
C140
LP2A
LP1A
CPX1A
CPX2A
CS1A
CS2A
CS3A
CS4A
CP1A
CP2A
CP3A
CP4A
CP5A
CP6A
CP7A
CP8A
CP9A
CP10A
CP11A
LP1A
LP2A
LP3A
LP4A
LP5A
LP6A
LP7A
X1A
X2A
S1A
S2A
S3A
X1A
X2A
S1A
S2A
S3A
C7A
C8A
C9A
C10A
C11A
C7A
C8A
C9A
C10A
C11A
C6A
C5A
C4A
C3A
C2A
C1A
S4A
L7A
L6A
L5A
L4A
L3A
L2A
L1A
X1A
X2A
S1A
S2A
S3A
S4A
C1A
C2A
C3A
C4A
C5A
C6A
C7A
C8A
C9A
C10A
C11A
L1A
L2A
L3A
L4A
L5A
L6A
L7A
CPX1A
CPX1A
LP7A
CPX2A
LP6A
LP4A
LP3A
LP2A
LP1A
CP11A
CP2A
CP3A
CP4A
CP5A
CP6A
CP7A
CP8A
CS4A
CS3A
CS2A
CS1A
CP1A
LP5A
CP10A
LP3A
DCK
DCK
DSCLA
DSDAA
CP9A
DSTBA
DDAT
DDAT
DSCLB
DSDAB
DSTBB
DSONB
DSAPB
DSCLB
DSDAB
DSTBB
DSONB
DSAPB
DSAPA
+3R3V
+3R3V
+3R3V
DSONA
DSAPA
47p
C143
DRES
OE
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
+15V
LP7A
to RXPLL-A
unit J1002
from BPF
unit J101
RF OUT
RF OUT
RF OUT
RF OUT
RF OUT
RF OUT
RF IN-A
+15V
DSCLB
DSDAB
DSTBB
DSONB
DSAPB
+15V
GND
NC
+15V
3R3V
NC
GND
+3R3V
+3R3V
+3R3V
+3R3V
+3R3V
+3R3V
DSONA
DSAPA
NETWORK ON: 14.97V
OFF: 3.20V
14.5V
15.0V
6.45V
7.18V
range: input impedance
MESUREMENT CONDITIONS
voltage at RX
frequency: 14.1 MHz
mode: J3E(USB)
Digital tester
ANT(RX): no input
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 ...