Icom IC-7800 Service Manual Addendum page 78

Dec. 2009
CTRL BOARD
C104 20p
C115 56p
J101
FOR
C102 2p
from FILTER CTIN C105 75p
unit J904
D101
HSM88AS
R103 R105
10k 220k
R118
ERJ3GE-JPW
R101 10
C119
L101
56p
LR-502
R102 10
D102
HSM88AS
R106
R119 R104
ERJ3GE-JPW 10k 220k
FOR
C116
75p
C106
C103
2p 75p
C151 C156 R157
0.0047
3p 100 R158
1
2
3
4
D151 5
HSM88AS
6
7
C155 R155
TC74AC04F
82p 100
L151
LR-502
D152
HSM88AS
D202
C202
HSM88AS
1p
L201
LR-502
D201 Q201
HSM88AS
2SK515
R252 R253 R254 R255
56 56 56 47
TRC
RL251
AE5349
J351
to BPF RX-ANTB
R256
unit J106
56
TRC
Q251
J251 DTC114EU
RL252
from/to NETWORK TUIN FTR-F1
board J2
THRU1
J51
GND
GND
3R5M
5M
7M
10M
14M
18M
24M
VHF
GND
to NETWORK
FANC
board J1
+15V
+15V
CO3
CO2
CO1
VHCO
VHCI
CI3
CI2
CI1
GND
RL253
GND
FTR-F1
THRU1
THRU2 THRU2
J252
from/to NETWORK TUOT
board J3 D301
HSM88AS
C301
1p
L301
R304
LR-502
10k
R305
220k
D302
HSM88AS
J301
from/to ANT-SW TX/RX-A
unit J1
R115 2.7M
FOR
R111 2.7M
CP101
R113
3
1k
1 AN1
2
IC101
NJM4558M
D103
1SS319
1 4
R112
1.2M
2 3
R114
5
1k
AN0
7
6
IC101
NJM4558M
L102
10μ
+5V
+5VL
8
V+
GND
4 IC101
L103
NJM4558M
100μ
-12VL
-12VL2
IC153 IC156
TC74ACT112F
TC7SZ32F
10k R160
1 5
R164
2 12 7
47 47 K Q
IC151 3 4 13
CK R170
14 11 9
47
J Q
13 C173 0.0047 IC155
12 TC7SZ32F
C180 0.1 1 5
11
2 R168
10
47
3 4
9
8
IC154
C175
TC7SZ32F
0.0047
1 5
R165 R171
2
R159 R161 47
47
47 3 4 2 6
10k
K Q
1
CK
C174 0.0047 3 5
J Q
C181 0.1
IC156
16 TC74ACT112F
IC156 V+
TC74ACT112F GND
8
R221 82k
8
IC201
V+
GND NJM4558M
R213 5.6k IC201 -15VL2
4
C211 NJM4558M
R214 5.6k
3
0.0047
1
2
R211 R225 R227
R215
10k
2.2k R223 10k
100k
R210 1.5M
1k
R222 100k
2.5V
R226 R228
R216 6.8k IC201
C212
NJM4558M 10k 10k
R217 6.8k 5
0.0047
7
6
R212 R218
D203
10k
100k
1SS319
R224
1.5M
+15VL +15VL
TRC
C418 10
C420 0.0047
10 9
R409 GND VCC
4.7 8
3R5M 11
O8 I8
R410 4.7 7
5M 12
O7 I7
4.7 6
7M R411 13
O6 I6
4.7
10M R412 14 5
O5 I5
14M R413 4.7 15 4
O4 I4
18M R414 4.7 16 3
O3 I3
24M R415 4.7 17 2
O2 I2
3R5M VHF R416 4.7 18 1
O1 I1
5M
7M IC402
TD62783AF
10M at selected: 13.4V
14M
18M
24M
C417 10
VHF
C419
FANC
0.0047
+15V
10 9
R401 GND VCC
CO3 4.7 11 8
O8 I8
CO2 R402 4.7 12 7
O7 I7
CO1 R403 4.7 13 6
O6 I6
VHCO R404 4.7 14 5
O5 I5
VHCI R405 4.7 15 4
O4 I4
CI3 R406 4.7 16 3
O3 I3
CI2 4.7 17 2
R407
O2 I2
CI1 4.7 18 1
R408
O1 I1
IC401
at selected: 13.4V TD62783AF
THRU1
THRU2
R309 220k
FOR
R310
2.2M
IC301
NJM2903M
2 FOR
1
3
R311
1k
R308 L302
2.2M 100μ
+5V
IC301
6 NJM2903M 8
7 V+ IC301
THRU1
5 GND NJM2903M
THRU2
4
+15VL
FOR
+ 5 V
AN1
AN0
AN3
AN2
AN1
AN0
+5V
+5VL
-12VL
+5V
-12VL2 R2 100k
R3 100k
R4 100k
R5 100k
R173
3.3k
R6 10k
C163
220p
D153
HSM88AS
CP1
D154
C164 HSM88AS
220p
L152
10μ
+5V
-12VL2
AN3
+5V + 5 V
AN2
Q59
DTC114EU
+15VL
TRC
-12VL
+3R3VL +3R3VL
FOR
REF
TOE
TOE
+3R3VL 16 1 CSTB
VCC STROBE 2
15 TDAT CSTB
OE DATA 3
14 TCK TDAT
Q4 CP 4
13 TCK
Q5 Q0 5
12
Q6 Q1 6
11
Q7 Q2 7
10
QS2 Q3 8
9
QS1 GND
IC51
CD74HC4094M
R51 1k
R52 1k
R53 1k R87 0 7M
R54 1k R88 0 10M
R55 1k R89 0 14M
R56 1k R90 0 18M
R57 1k R91 0 24M
R58 1k R92 0 VHF
R40 1k
R59 1k CO3
R60 1k CO2
R95 0 R61 1k CO1
R62 1k NVHF
R63 1k CI3
Explanatory notes
R64 1k CI2
R97 0 R65 1k CI1
4.6MOL
VOLTAGE LINE
+5V
IC52
R66 TX LINE
BU4066BCF 4.7k
RX LINE
COMMON LINE
Q53
DTC114EU
Q51 MESUREMENT CONDITIONS
voltage at RX(no instruction)
+5V DTC114EU
frequency: 14.1 MHz
mode: J3E(USB)
Q52 ANT(RX): no input
DTC114EU 4.6MOL (TX): no modulation
Digital tester
range: input impedance
FOR
200mV: 100MΩ
2V: 11MΩ
20V,200V,1000V: 10MΩ
+5V
THRU1
THRU2
L5
100μ
+15VL +15VL
L1
100μ
+ 5 V
C10
0.1
IC2
R1EX24016ATA00A
1 8
A0 VCC
2 7
A1 WP
AN3 3 6
A2 SCL
4 5
VSS SDA
C8 L2
100μ
0.1 Q3
DTC114EU
AN2
IC1
Q5
M38022M2
DTC114EU
Q7
DTC114EU
1 48
P62/AN2 P00/AD0
2 47
P61/AN1 P01/AD1
3 46
P60/AN0 P02/AD2 Q9
4 45
DTC114EU
P57/INT3 P03/AD3
5 44
P56/PWM P04/AD4
6 43
P55/CNTR1 P05/AD5
7 42
P54/CNTR0 P06/AD6
8 41
P53/SRDY2 P07/AD7
9 40 CI1
P52/SCLK2 P10/AD8
10 39 CI2
P51/SOUT2 P11/AD9
11 38 CI3
P50/SIN2 P12/AD10
12 37
P47/SRDY1 P13/AD11
13 36 CO1
P46/SCLK1 P14/AD12
14 35 CO2
P45/TXD P15/AD13
15 34 CO3
P44/RXD P16/AD14
16 33
P43/INT2 P17/AD15
THRU
163nsec
X1
CR-569
4.5V
IC3
R15 TC4S69F
1k
R20 D1
4 3
12k RD5.1M
2
5 1
C40 0.1
C25
0.1
IC6
TC7S08F
4 3
2
5 1 TRC + 5 V
5.0V
IC4
TA7805F NQ
+ 5 V +5V 2 1
O I
G
TRC T8V
TX: 4.9V Q1 Q2
RX: 0.0V DTA114EU DTC114EU
+15VL
TRC
TX: 8.1V
3.3V
RX: 0.0V
-12VL -12VL
+3R3VL +3R3VL
T 8 V T 8 V
FOR FOR
REF REF
TOE TOE
FSTB
CSTB CSTB
TDAT TDAT
TCK TCK
IKEYB K I E Y B
L51
100μ
TOE
LPF8
LPF2
FSTB R67 10 STB 1 16
STROBE VCC
TDAT R68 10 2 15
DATA OE
TCK R69 10 3 14 LPF3
CP Q4
4 13 LPF6
Q0 Q5
5 12 LPF9
Q1 Q6
6 11
Q2 Q7
7 10
Q3 QS2
8 9 LPF5
R86
Q54 GND QS1
10k 2SK3018
OE
IC55
CD74HC4094M
LPF7
TOE
+15V +15V
STB
IC56
1 16
STROBE VCC
2 15
DATA OE
CK 3 14
CP Q4
LPF1 4 13
Q0 Q5
ANT4R 5 12
Q1 Q6
6 11
Q2 Q7
7 10 DATA
Q3 QS2
8 9
GND QS1
CD74HC4094M
ANT4R
LPF1
L52
100μ
+15VL +15V +15V
THRU THRU
OE OE
CK CK
THRU1 THRU1
THRU2 THRU2
77
T15V
T15V T15V
15.0V
J2
T15V
P W P W PW
PX
Q4
PY
DTC114EU
P X P X PZ
to TUNER
T15V
unit MF1,MF2
AW
AX
P Y P Y
AY
Q6
AZ
DTC114EU
P Z P Z
A W A W
Q8
DTC114EU
AX AX
AY AY
Q10
DTC114EU
AZ
EP1
W1
15.0V
R22
1.2k
+15VL
IC5
TC74HCT7007AF
+5V
+ 5 V
+ 5 V + 5 V
L4
J1
EXC-ELDR25C
+15VL +15V +15V
+15V
+15V
-11.8V
GND
GND
GND
L6 EXCCL3225U -12V -12V
L7 EXCCL3225U +3R3V +3R3V
L8 EXCCL3225U T8V T8V
R23 10k FORV FORV
R24 1k REFV REFV
to LOGIC
GND
unit J811
TOE TOE
FSTB FSTB
CSTB CSTB
TDAT TDAT
TCK TCK
GND
TDRS
L9 GNDL
IKEYB K I E Y B ISTA
IKEY
THRI
GND
R345
10k
L9
Q11
HF50ACC322513
DTC114EU
at selected: 12.7V
IC57
TD62783AF J52
LPF2 1 18 R70 4.7 50M
I1 O1
LPF8 2 17 R71 4.7 7M
I2 O2
LPF4 3 16 R72 4.7 10M
I3 O3
LPF7 4 15 R73 4.7 24M
I4 O4
LPF3 5 14 R74 4.7 14M
I5 O5 to FILTER
LPF6 6 13 R75 4.7 18M
I6 O6 unit J902
LPF9 7 12 R76 4.7 5M
I7 O7
LPF5 8 11 R77 4.7 3R5M
I8 O8
9 10 2M
+15V
VCC GND
GND
C70 0.1
Q55
J53
DTC114EU
C72 10 14.5V +15V
ANT4R
OE
STB DATA
to FILTER
CK
R78 unit J905
LPF1 1 18 STB
I1 O1
ANT4R 2 17 +15V GND
4.7
I2 O2
3 16 ANT4R GND
I3 O3
4 15 OE
I4 O4
5 14 at selected: 12.7V DATA
I5 O5
6 13 CK
I6 O6
7 12 R84 4.7 THRU2
I7 O7
8 11 R85 4.7 THRU1
I8 O8
9 10
VCC GND
IC58
TD62783AF
C71
0.1
+15V
DATA
OE
CK
THRU1
THRU2