Icom IC-7851 Servise Manual page 173

ANT-SW UNIT
L2
[TX/RX-A]
TO CTRL J301 J1
LA-253
C1 8P
W2
[RX-SUB]
TO CONNECT J102
J2
14.6
J4
10
9
EP2
+15V
8
R14
ANT4R MPZ2012S331A
7
TO FILTER J903 6
OE
5
DATA
4
CK
3
1
STB
2 3.3
2
1
3
R15
C11
R16
0.1
IC11
1 20
VSS VDD
2 19
DATA QE
3 18
R27
CLK Q11
4 17 Q11
LCK Q10
5 16 R17
Q0 Q9
6 15
Q1 Q8
LDTA114YE
7 14
Q2 Q7
8 13
Q3 NC
9 12
Q4 NC
10 11 R18
Q5 Q6
BU2092FV R19
R28
Q12
R20
LDTA114YE
R21
R22
R29
Q13
R23
LDTA114YE
R24
R25
R30
Q14
R26
LDTA114YE
CONDITION
ANT*A Selected in the MAIN band
ANT*B Selected in the SUB band
ANT*G Not selected
ANT*R RX-ONLY (Only ANT4)
[RX-ONLY]
TO CONNECT J105
J3
ANT1G
RL51
FTR-F1
ANT1A
RL53
RL52
FTR-MYAA012D
FTR-MYAA012D
ANT1B
ANT2G
L61 AS080447-33N
RL61
FTR-F1
ANT2A
ANT4R RL63
100
IC12
5
GND NC RL62
FTR-MYAA012D
FTR-MYAA012D
VIN
4
VOUT NC
S-812C33AMC
ANT2B
100 ANT1G
ANT3G
L71 AS080547-47N
100 ANT1B
RL71
FTR-F1
180
10.7
180 ANT1A
ANT3A
1.5
RL73
100 ANT2G
1.5
100 ANT2B
RL72
FTR-MYAA012D
FTR-MYAA012D
180
10.7
180 ANT2A
100 ANT3G
ANT3B
100 ANT3B
ANT4G
L81 AS080440-22N
1.5
180
RL81
FTR-F1
180 ANT3A
10.7
100 ANT4G
ANT4A
100 ANT4B
1.5
RL83
180
1.5
180 ANT4A
RL82
FTR-MYAA012D
FTR-MYAA012D
10.7
ANT4B
RL84
FTR-MYAA012D
ANT4R
NETWORK UNIT
J51
[ANT1]
D53
RL10 RL20
C53
0.01
VS-12MBU VS-12MBU
L1SS400
J61
[ANT2]
RL11 RL21
VS-12MBU VS-12MBU
D63
C63
0.01
L1SS400
J71
[ANT3]
D73
C73
0.01
L1SS400
J81
[ANT4]
D83
L1SS400
C83
0.01
J2
[TUIN]
TO CTRL J251
RL40
VS-12MBU
RL30
VS-12MBU
L50 L60 L70 L80
LA-598 LA-593 LA-492 LA-492
RL50 RL60 RL70 RL80
VS-12MBU VS-12MBU VS-12MBU
RL31
FTR-F1
VS-12MBU
RL41
VS-12MBU
J3
[TUOT]
TO CTRL J252
TO MF3
TUNER:ON,TX 8.1 V
*: Refer to the PARTS LIST for the value and name of component.
9-30
L90 L100 L110 L120 L130 L131
LA-493 LA-494 LA-594 LR-504 LR-505 LR-505
RL90 RL100 RL110
RL120
VS-12MBU VS-12MBU VS-12MBU
VS-12MBU
VHFT EP259
24T EP258 MMZ1608B301CT
18T EP257 MMZ1608B301CT TO CTRL J51
14T EP256 MMZ1608B301CT
MPZ2012S331A
10T EP255 MMZ1608B301CT J1
EP4
7T EP254 MMZ1608B301CT
24
5T EP253 MMZ1608B301CT
23
35T EP252 MMZ1608B301CT T3R5M
22
MMZ1608B301CT
T5M
21
T7M
20
T10M
19
T14M
18
T18M
17
T24M
16
VHF
15
EP3
14
MPZ2012S331A FANC
13
+15V
12
+15V
11
CO3
10
CO2
9
CO1
8
VHCO
7
VHCI
6
CI1 EP209 CI1 CI3
5
CI2 EP208 MMZ1608B301CT CI2 CI2
4
CI3 EP207 MMZ1608B301CT CI3 CI1
3
VHCI EP206 MMZ1608B301CT VHCI
2
VHCO EP205 MMZ1608B301CT VHCO
1
EP2
CO1 EP204 MMZ1608B301CT CO1
CO2 EP203 MMZ1608B301CT CO2 MPZ2012S331A
CO3 EP202 MMZ1608B301CT CO3
MMZ1608B301CT
J4
R303 Q302
TFAN
1
120
2 14.9
3
GND
4
Q301
LMUN5211
R301
RSQ035P03TR 100k EP300
MMZ1608B301CT
TUNER:ON,TX 4.7 V