Icom IC-7851 - Page 176

9-33
CTRL UNIT (CTRL-1)
22
R409
0
R86
0.1
C92
2.2K
R418
2.2K
R421
0.1
C26
0.1
C48
LMUN5211
Q7
MPZ1608S221A
EP402
4.7
R73
SN74AHCT1G08DCKR
IC5
1
2
3
4
5
MPZ1608S221A
EP401
T8V
RB501V
D5
22
R413
0
R10
47k
R2
330
R32
2.2K
R423
4.7
R71
2.2K
R430
MPZ2012S331A
EP5
LMUN5211
Q3
4.7
R76
470
R23
1k
R11
MPZ2012S331A
EP15
1 50V CE-LH
C20
330
R25
4.7R78
0.01
C6
22
R416
ANTI
0.1
C41
RB501V
D6
47P
C37
2.2K
R427
47k
R8
0.1
C435
100U
L52
62783G
IC402
1
I1
2
I2
3
I3
4
I4
5
I5
6
I6
7
I7
8
I8
9
VCC
10
GND
11
O8
12
O7
13
O6
14
O5
15
O4
16
O3
17
O2
18
O1
LMUN5211
Q2
MPZ2012S331A
EP14
0.1
C69
62783G
IC57
1
I1
2
I2
3
I3
4
I4
5
I5
6
I6
7
I7
8
I8
9
VCC
10
GND
11
O8
12
O7
13
O6
14
O5
15
O4
16
O3
17
O2
18
O1
1 50V CE-LH
C18
10k
R12
22
R401
LMUN5211
Q64
22
R84
LMUN5111
Q1
MPZ2012S331A
EP10
THRU1
IC1
R5F212A7SNFP(SX-3073B-2)
1
L10M
2
L14M
3
MODE
4
E2SCK
5
E2E2SDA
6
RESET
7
XOUT
8
VSS/AVSS
9
XIN
10
VCC/AVCC
11
NVHF
12
THRU
13
STOK
14
ANTI
15
SEND
16
RZ
17
RY
18
RX
19
RW
20
PZ
21
PY
22
PX
23
PW
24
TRAIO/INT1
25
CLK0
26
START
27
(KEY)
28
KEY
29
CO3
30
CO2
31
CO1
32
CI3
33
CI2
34
CI1
35
AUXCTL
36
PWRS
37
TXD1
38
RXD1
39
SETI
40
AUXR
41
AUXT
42
L5M
43
L3R5M
44
L24M
45
L7M
46
RxENB
47
STNG
48
MTN
49
WIDE
50
FOR
51
REF
52
R
53
P
54
BAND
55
RSV2
56
NEWNET
57
AN2/CLK1
58
DA0
59
VSS/AVSS
60
DA1
61
VREF
62
VCC/AVCC
63
VHF
64
L18M
1 50V CE-LH
C23
REFL
0.01
C11
THRU1_
10
R67
0.1
C15
62783G
IC401
1
I1
2
I2
3
I3
4
I4
5
I5
6
I6
7
I7
8
I8
9
VCC
10
GND
11
O8
12
O7
13
O6
14
O5
15
O4
16
O3
17
O2
18
O1
5.6k
R15
LMUN5211
Q22
22
R407
10
C66
MPZ2012S331AEP6
62783G
IC58
1
I1
2
I2
3
I3
4
I4
5
I5
6
I6
7
I7
8
I8
9
VCC
10
GND
11
O8
12
O7
13
O6
14
O5
15
O4
16
O3
17
O2
18
O1
1 50V CE-LH
C21
330
R29
22
R408
LMUN5211
Q11
SN74AHCT1G08DCKR
IC6
1
2
3
4
5
MPZ2012S331AEP7
THRU2
22
R85
1 50V CE-LH
C24
CR-520
X1
MPZ1608S221A
EP9
FOR
10
C418
10U
L1
BR24L32FV
IC2
1
A0
2
A1
3
A2
4
VSS
5
SDA
6
SCL
7
WP
8
VCC
1K
R40
62783G
IC403
1
I1
2
I2
3
I3
4
I4
5
I5
6
I6
7
I7
8
I8
9
VCC
10
GND
11
O8
12
O7
13
O6
14
O5
15
O4
16
O3
17
O2
18
O1
10
R69
18k
R16
0.01
C1
0.1 C51
1 50V CE-LH
C22
22
R411
22
R414
100U
L3
2.2K
R425
10KR345
FORL
0.1
C68
1 50V CE-LH
C17
LMUN5211
Q6
REF
10
C417
1.8k
R13
1M
R1
MPZ2012S331A
EP16
SN74AHC595PW
IC55
1
QB
2
QC
3
QD
4
QE
5
QF
6
QG
7
QH
8
GND
9
QH'
10
SCLR
11
SCK
12
RCK
13
G
14
SI
15
QA
16
VCC
2.2K
R424
0.01
C2
10
R68
22
R410
0.01
C25
22
R415
1 50V CE-LH
C19
MPZ2012S331AEP8
R
TC7S14FU
IC51
1
2
3
4
5
10
C72
330
R31
4.7k
R37
470
C46
LMUN5211
Q5
+5VL
CP3
0.1
C71
J52
1
2
3
4
5
6
7
8
9
10
11 12
0.01
C5
4.7
R70
22
R402
4.7
R75
22k
R17
RR264M
D1
100k
R63
0.1
C40
LMUN5211
Q4
P
100U
L5
22
R403
J1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
2526
SN74AHC595PW
IC56
1
QB
2
QC
3
QD
4
QE
5
QF
6
QG
7
QH
8
GND
9
QH'
10
SCLR
11
SCK
12
RCK
13
G
14
SI
15
QA
16
VCC
2.2K
R417
LMUN5211
Q55
RB501V
D7
CP1
HK3-S-T
2.2K
R420
100 25V CE-LL
C16
TRC
2.2K
R428
12P
C12
2.2K
R426
J2
1
2
3
4
5
6
7
8
9
10
1112
100U
L51
0.01
C4
1K
R24
470
C13
0.1
C10
330
R28
22
R406
100K
R14
330
R26
J53
1
2
3
4
5
6
7
8
9 10
100k
R64
2.2KR422
4.7
R77
VHF
4.7k
R22
0.01
C43
10K
R66
39k
R346
22
R404
LMUN5211
Q10
4.7
R72
2.2K
R431
47P
C36
2590
MP1
1 2 3 4
0.1
C7
RB501V
D8
0.1
C70
0
R36
RB501V
D2
12P
C9
+15VL
RB501V
D9
MPZ1608S221A
EP403
1K
R145
0.1
C419
22
R412
0.1
C436
2.2K
R419
0
R19
LMUN5211
Q8
4.7
R74
330
R27
RB501V
D3
S-80851CNMC
IC3
1
OUT
2
VDD
3
VSS
4
NC
5
CD
100U
L2
VDD1R5
0.1
C8
22
R405
0.1
C14
2.2K
R432
2.2K
R429
0.1
C420
100k
R62
LMUN5211
Q9
0
R43
J51
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
2526
CP2
NJM7805DL1A
IC4
IO
G
10K
R18
TCALV
-12VL
0
R9
0.1
C73
2427
MP2
330
R30
RB501V
D4
0.1
C91
T8VT8V
ISTAB
ISTAB
CI1
CI2
14M
10M
IKEY
IKEY
18M VHF
RZ
+5VL
+5VL
+5VL
IKEYB
RY
RX
RW
PZ
PY
PX
PW
VHF
VHF
P
R
REF
FOR
CI1
CI2
P
CI3
R
NVHF
REF
CO1
CO2
FOR
CO3
24M
18M
14M
10M
7M
5M
3R5M
ANTI
ANTI
SETI
SETI
-12VL
NVHF
VDD1R5VDD1R5
TCK
TDAT
FSTB
+3R3VL
CI3 CO1 CO2
FORL
CO3
REFL
THRU
THRUTHRU
RY RX
TRC
TRC
TRC
RW PZ PY PX PW
5M
3R5M
+15VL
+15VL+15VL
PWRS
7M
24M
RZ
DRESH
TCALV
MODE
RESET
F2M
RW
F5M
T14M
LPF5
LPF8
LPF3
FANC
GND
GND
CI3
F3R5M
LPF1
CI1
REFV
LPF6
+15V
CO1
LPF8
T5M
PW
SETI
CI2
LPF9
VHCO
RX
VHCI
-12V
CO2
LPF6
T18M
GND
T10M
THRI
T3R5M
-
T7M
FORV
LPF7
PX
F14M
F24M
+15V
F18M
PY
GND
F50M
-
VHF
GND
+15V
CO3
OE
DRESH
T24M
RY
LPF3
T8V
GND
CK
TCK
+15V
TDAT
TCALV
FSTB
IKEY
PZ
STB
LPF5
+3R3V
LPF4
F7M
LPF2
ISTA
GND
DATA
LPF7
T15V
+15V
F10M
LPF9
RZ
ANT4R
LPF4
ANT4R
LPF1
T15V
+15V
LPF2
VDD1R5
TO NETWORK J1
TO MF1/MF2
TO LOGIC J1401
TO FILTER J902
TO FILTER J905
CTRL-2
CTRL-2
3.5 Vp-p
2.6 V
v
t
19.69 MHz (50.8 ns)
5.0
0.0
5.1
8.1
0.0
TUNER:OFF 15.0 V
ANT4R ANT4:RX-ONRY 0.0 V
CONDITION VOLTAGE
THRU1 TUNER:ON 12.4 V
THRU2 TUNER:ON 12.4 V
1.5
0.03-2M LPF1 12.7V
2-4M LPF2 12.7V
4-5.8M LPF3 12.7V
8-12M LPF5 12.7V
12-15M LPF6 12.7V
15-22M LPF7 12.7V
22-30M LPF8 12.7V
30-60M LPF9 12.5V
FREQUENCY
VOLTAGE
5.8-8M LPF4 12.7V
CONTROL
SIGNAL
15.0
-11.6
3.3
Selected 13.6 V
*: Refer to the PARTS LIST for the value and name of component.