Icom IC-756PRO III Service Manual - page 88
14
13
12
11
10
9
8
7
6
5
4
3
2
1
SS
MOSI
MISO
VSDD
NC
NC
NC
NC
NC
NC
VSSA
VSSA
AUDOUT
AMCAP
SCLK
VCCD
XCLK
INT
RAC
VSSA
NC
NC
NC
NC
VCCA
ANAIN+
ANAIN-
NC
15
16
17
18
19
20
21
22
23
24
25
26
27
28
C3008
4.7
C3001 1
W3001
W3014
R3004
47k
IC3001
ISD33120S
C3003
0.1
C3005
0.1
R3027
82k
R3025
10k
R3026
1.5M
C3013
0.1
IC3004B
NJM4558M
5
6
7
R3028
82k
R3037
10k
C3004
1
R3018 47k
D3001
D
A221
R3019
220
2
3
1
8
4
R3015
120k
R3014
8.2k
R3013
10k
R3042
2.2k
R3017 2.2k
R3024
100k
W3010
R3040
47k
R3041
47k
L3002 100uH
L3001 10uH
C3011
470
C3009
22
C3010
470
R3003
47k
XO
X1
Y0
Y1
Z0
Z1
INH
A
B
C
X
Y
Z
9
10
11
6
3
5
1
2
13
12
14
15
4
16
7 8
C3021
0.1
R3022
470
R3030
100k
R3023
470
C3032
0.1
C3025
10
C3012
0.047
R3021
220
R3032
100k
R3016
100k
C3015
10
7
16
4
8
14
13
15
12
1
2
5
11
6
3
10
9
Z
X
Y
C
B
A
INH
Z1
Z0
Y1
Y0
XO
X1
R3006
470
C3030
0.1
IC3004A
NJM4558M
IC3002
BU40538CFV
IC3005
BU4053BCFV
C3018
10
C3019
10
R3020
47k
R3034
1.2k
6
7
8
9
10
5
4
3
2
1
VCC
VCAOUT
CTL
VCAIN
NC
VCC2
IN+
IN-
OUT
GND
IC3003
M5282FP
C3020
10
R3035
1k
C3017
10
R3033
100k
R3012
270k
R3011
82k
R3036
100
R3010
22k
Q622
UMH11N
2
3
1
6
4
5
R622
1.5k
R621
47k
Q621
2SA1577
C611
0.47
D611
DA221
Q612
2SC4081
R612
1k
R613
10k
Q611
2SD1619
R611
4.7
R623
10k
C601
0.47
D601
DA221
Q602
2SC4081
R602
1k
R603
10k
Q601
2SD1619
R601
4.7
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
VOSL
MOSL
DTAF
VRAC
VINT
RECI
MCK
VCS
MDAT
VX2
3R3V
VX1
VDTI
M5V
RECO
MICI
AMPO
MICE
MISL
8V
VOGV
-5V
MICO
3R3V_d
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
90
91
92
93
94
95
96
89
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
128
127
126
125
124
123
122
121
120
119
118
117
116
115
114
113
112
111
110
109
108
107
106
105
104
103
102
101
100
99
98
97
R3556 15k
R3555 15k
R3554 15k
R3557 15k
1
2
3
4
5
6
7
8
9
10
13
14
15
16
17
18
19
20
21
22
44
43
42
41
40
39
38
37
36
35
32
31
30
29
28
27
26
25
24
23
C3557 0.01
C3558 100
C3555 0.01
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
19
20
18
17
16
15
14
13
12
11
2
1
3
4
5
6
7
8
9
10
19
20
18
17
16
15
14
13
12
11
2
1
3
4
5
6
7
8
9
10
19
20
18
17
16
15
14
13
12
11
2
1
3
4
5
6
7
8
9
10
R3503
47k
R3531 220k
R3532 220k
R3533 220k
R3534 220k
R3535 220k
R3536 220k
R3537 220k
R3538 220k
R3539 220k
R3540 220k
R3545 220k
R3547 220k
R3548 220k
R3549 220k
R3514 220k
R3513 220k
R3512 220k
R3511 220k
R3515 220k
R3516 220k
R3517 220k
R3518 220k
R3519 220k
R3520 220k
R3521 220k
R3522 220k
R3523 220k
R3524 220k
R3525 220k
R3526 220k
R3541 220k
R3542 220k
R3543 220k
R3546 220k
R3544 220k
OUT
VDD
VSS
CD
NC
2
1
3
IC3502
S-80942ANMP-DD6
5
4
R3507
47k
C3506
0.0047
R3506
4.7k
C3507
0.01
SI
SCK
HOLD
VCC
VSS
WP
SO
CS
8
7
6
5
3
4
3
2
1
IC3503
X25320SI-2.7
C3508
0.1
R3783
47k
R3508
47k
GND
TPOUT
WR
SOUT
SIN
CS1
SCK
CS0
L1
L5
L2
L4
L3
VDD
IC3504
RTC-4553A
7
6
5
4
3
2
1
8
9
10
11
12
13
14
Q3504
2SA1162
R3509
4.7k
Q3505
DTC144EE
R3510
10k
D3505
MA2S111
D3506
MA2S111
C3510
10
D3504
MA2S111
BT3501
CR2032
C3509
0.01
X3501
CR-520
C3501
12p
C3502
12p
C3511
0.01
8
7
6
5
1
2
3
4
R3551
1M
X3551
CSTCV26.00MXJ040
IC3552
TC7WU04FU
C3771 0.1
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
C3772 0.1
C3773 0.1
R3759
47k
C3751 0.0047
C3752 0.0047
C3753 0.0047
C3754 0.0047
C3755 0.0047
C3756 0.0047
C3757 0.0047
C3758 0.0047
R3758 1k
R3757 1k
R3756 1k
R3755 1k
R3754 1k
R3753 1k
R3752 1k
R3751 1k
C3761 0.0047
C3762 0.0047
C3763 0.0047
C3764 0.0047
C3765 0.0047
C3766 0.0047
C3767 0.0047
C3768 0.0047
R3768 1k
R3767 1k
R3766 1k
R3765 1k
R3764 100
R3763 1k
R3762 1k
R3761 100
C3657
0.01
ENA
A1
YB4
A2
YB3
A3
YB2
A4
YB1
VSS
VDD
ENB
YA1
B4
YA2
B3
YA3
B2
YA4
B1
VCC
G
B1
B2
B3
B4
B5
B6
B7
B8
VCC
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
CLK
VCC
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
CLK
DIR1
A1
A2
A3
A4
A5
A6
A7
A8
GND
OUT EN
D0
D1
D2
D3
D4
D5
D6
D7
GND
Q2
Q1
Q0
VCC
CLK
Q7
Q6
Q5
Q4
Q3
OUT EN
D0
D1
D2
D3
D4
D5
D6
D7
GND
OUT EN
D0
D1
D2
D3
D4
D5
D6
D7
GND
OUT EN
D0
D1
D2
D3
D4
D5
D6
D7
GND
R3651
100k
R3658 220k
R3657 220k
R3652 220k
R3653 220k
C3651
0.01
IC3651
TC74AC244FT
IC3655
TC74AC08FS
R3654
1k
C3655
2p
IC3656
TC74AC32FT
C3654
0.01
C3656
0.01
C3652
0.01
C3653
0.01
IC3653
TC74AC574FT
IC3654
TC74AC574FT
R3786
100k
IC3652
TC74AC245FT
C3556 0.01
7
8
6
5
2
1
3
4
IC3771
TC7W04FU
Q3771
2SA1576
R3775
6.8k
R3776
33k
D3771
DAN222
Q3772
2SC4081
R3778
47k
C3770
0.0047
R3772 47k
R3773 47k
R3774 47k
C3775 470
C3513 470
R3769 47k
R3770 47k
R3771 47k
J3502
7
5
3
1
8
6
4
2
R3728
47k
C3724
0.0047
C3774
0.1
R3727 1k
R3701
47k
R3702
47k
R3703
47k
R3704
47k
R3705
47k
D3702
D
AP222
D3701
D
AN222
R3706
1k
R3707
1k
Q3701
DTC114EE
C3711
0.01
C3712
0.01
C3702 0.0047
C3704 0.0047
C3706 0.0047
C3707 0.0047
C3708 0.0047
C3709 0.0047
R3712 1k
R3711 1k
R3710 1k
R3709 1k
C3721
0.0047
C3722
0.0047
R3725
47k
C3723
0.0047
R3726
1k
R3724 1k
R3723 15k
R3721
47k
R3722
47k
7
3
5
2
4
1
6
7
3
5
8
2
4
1
6
L664 100uH
L663 HF50ACC322513-B
L666 HF50ACC322513-B
L670 100uH
L668 100uH
L669 HF50ACC322513-B
L667 100uH
L661 100uH
L662 100uH
L665 100uH
C664
0.0047
14V
R634
4.7k
R631
4.7k
R635
4.7k
R638
4.7k
R632
33k
R633
15k
C631
0.0047
C632
0.0047
R636
33k
R637
15k
D632
MA2S111
D631
MA2S111
Q631
2SC4081
Q632
2SC4081
R651
330
Q652
2SD1619
Q651
DTA114EE
R652
10k
C651
0.0047
Q653
DTC114EE
R653
8.2k
D691
D
AN222
C691
0.0047
Q691
DTC114EE
RL691
OMR-109F
C692
0.0047
L642 220uH
L641 220uH
L644
HF70A
CC635050-T
L643
HF70A
CC635050-T
C642 0.0047
C641 0.0047
C701
100p
W701
C681
0.0047
L681
100uH
TR
VI
PAT
8
TXS
+
-
R3592 39k
R3593 20k
R3594 10k
R3595 10k
R3596 10k
FPDAT9
FPDAT2
FPDAT1
FPDAT0
R3583 20k
R3582 39k
R3584 10k
R3585 10k
R3586 10k
FPDAT4
FPDAT11
FPDAT3
FPDAT5
R3573 20k
R3572 39k
R3574 10k
R3575 10k
R3576 10k
FPDAT7
FPDAT14
FPDAT6
FPDAT8
R3571
680
R3581
680
B
3R3V_d
G
HV
R
HSYNC
VSYNC
RTKI
R3646
47k
C3642
0.0047
C3643
0.0047
SKYS
R3645
47k
D3507
D
A221
R3643
1k
R3644
1k
SKYS
RTKI
M5V_
PWRK
R3647
1k
PWRK
C3641
0.0047
R3501
47k
H5V_
ICK
IDTO
ECS
IDTI
CCS
CWR
C3614 0.0047
TRAS
FZMD
SENI
C3615
0.0047
R3621
47k
PSEL
PSTB
CON2
CON1
CON0
H5V
L3601
HF50ACC322513-B
L3602 HF50ACC322513-B
L3603 RCR-875D-472K
FZVP
UNLC
D3601 MA2S111
R3601 1k
R3602 47k
C3606
220p
R3785
47k
C3504
0.01
SCPL
VOXL
AVXL
ASO0_
ASO1_
ASO2_
STON_
BEEP_
CCS
CWR
ECS
IDTI
IDTO
ICK
SENI
FZMD
TRAS
CS3
CS2
TMD
LRXO
LTXO
LRES
BSON
W
AIT
LW
R
HWR
RD
FA
I
FZRS
FZVP
CON0
CON1
CON2
PSEL
PSTB
UNLC_
IST
A_
TXS_
RXS_
IKEY_
TR
VI_
DRES_
IC3501
HD64F2357F20
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
SKYS_
R
TKI_
DPGI_
DSDR
CBSY
DSKY_
PWRK_
L3501
HF50A
CC322513-B
C3561
0.0047
C3560
0.01
H5V_
M5V_
IC3553
LH61665AS-60A
MD0
MD2
MD3
MD4
MD5
MD6
MD7
MD1
UCAS
WE
RAS
MA0
MA1
MA2
MA3
MA4
MD15
MD14
MD13
MD12
MD11
MD10
MD9
MD8
LCAS
MA7
MA6
MA5
C3601
0.1
C3512
0.01
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
CTXD
FZTX
CRXD
FZRX
MCK
MDAT
FRMD
R3781
47k
R3782
47k
C3503
0.01
TXS
R3618 1k
C3611
0.0047
R3617 1k
RXS
C3612
0.0047
R3615
22k
R3616
22k
8
7
6
5
4
3
2
1
10
9
11
12
13
14
15
16
Y1
Y0
Z1
Z
Z0
INH
VEE
VSS
VDD
Y
X
X1
X0
A
B
C
C3631
0.0047
R3649 4.7k
IC3631
BU4053BCFV
D3508 1SS372
R3642 1k
R3641 1k
R3640 1k
R3639 1k
R3638 1k
R3637 1k
R3631 47k
R3632 47k
R3633 47k
R3634 47k
R3635 47k
R3636 47k
C3632 0.0047
C3633 0.0047
C3634 0.0047
C3635 0.0047
C3636 0.0047
C3637 0.0047
R3620
47k
R3656
47k
R3655
47k
M5V_
ASL
ASO2_
ASO1_
ASO0
AVXL
VOXL
SCPL
R3648
47k
TRVI
R3613
47k
C3610
0.01
R3612 1k
IKEY
C3608
0.01
R3609 1k
C3609
0.01
ISTA
R3608 1k
R3611
47k
TMD
R3603 2.2k
LFMD
R3604 1k
LMFD
R3605 1k
C3607
0.001
Q3002
DTA114EE
BEEP
R3625 1k
C3626
0.0047
R3628
1M
C324
0.001
C323
0.001
R323
120k
R322
120k
R324
120k
C321
0.0047
C322
0.0047
C3625
0.0047
R3627
1M
R3626
1k
C326
0.1
C325
0.1
-5V
STON
8V
IC321A
NJM4558M
1
3
2
4
8
-
+
TMD
LRXD
LTXD
ISTA
IKEY_
TRVI_
RXS_
TXS_
STON_
BEEP_
ALCL
SML
FMTL
REFL
NSQ0
FORL
SCPL
VOXL
AVXL
J3503
J3504
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
RESET
BYTE
VCC
VCC
A18
A17
A16
A15
A14
A13
A12
A11
A10
D13
D14
D15
D12
D11
D10
D9
D8
CS3
CS0
RD
D2
D0
D1
D3
D4
D5
D7
D6
HWR
IC3751
M62352GP
MDAT
MCK
ASTB
SATV
VOGV
BANV
DRIV
POCV
MIGV
AFGV
MONV
BLBV
BLAV
16
15
3
2
1
8
5
4
6
7
14
13
12
11
9
10
IC3752
BU4094BCFV
16
3
15
2
1
4
8
5
6
7
14
13
12
11
9
10
IC3753
BU4094BCFV
NBS
NBLS
MSL1
MSL2
MISL
MOSL
VOSL
AGRS
AMS
PHFS
P50S
MODS
FMNS
ACKS
CALS
DSRS
MDAT
MR
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
W
AIT
RESET
RD_
HWR_
L
WR_
A17
CSL
A0
A1
A2
H5V_
M5V_
R3552 100k
R3553 100k
MA3
MA4
MA2
MA5
MA1
MA6
MA0
MA7
RAS
WE
UCAS
LCAS
MD7
MD8
MD6
MD9
MD5
MD10
MD4
MD11
MD3
MD12
MD2
MD13
MD1
C3552
0.01
MD14
MD0
MD15
VSYNC
HSYNC
FPD
A
T
0
FPD
A
T
1
FPD
A
T
2
FPD
A
T
3
FPD
A
T
4
FPD
A
T
5
FPD
A
T
6
FPD
A
T
7
FPD
A
T
8
FPD
A
T
9
FPD
A
T11
FPD
A
T14
H5V_
3R3V
M5V_
C3553
0.01
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
FAI_
C3562 100
MSTB
CIV
CIVE
C3769
0.0047
R3779
100k
R3780
1k
DSDR
DSKY
DPGI
DSFR
DSFW
CTFL
RTDT
SBSY
M5V_
TCON
EKEY
MCK
MDAT
SSTB
ESTA
8
9
10
11
12
13
14
7
6
5
4
3
2
1
CSL
CS2
HWR_
M5V_
9
8
10
11
12
13
14
6
7
5
4
3
2
1
HWR_
LWR_
RD
M5V_
HWR_
BSON
LWR_
RD_
CS0
FAI_
CS3
CS1
CS2
HWR_
LWR_
RD
FAI
CS3
CS0
CS2
CS1
D15
D14
D13
D12
D11
D10
D9
D8
SBSY
VRAC
VINT
VDTI
TCON
EKEY
RTDT
CTFL
D0
D1
D2
D3
D4
D5
D6
D7
AFMS
MSTB
ASTB
FSTB
ANTS
BSTB
RANS
SQLS
LRES
SQLS
AFMS
SQLS
AFMS
D8
D9
D10
D11
D12
D13
D14
D15
DSFW
DSFR
ESTA
VCS
SSTB
SPS
SQSS
LRES
SPS
VRAC
VINT
VDTI
VCS
VDTI
VINT
SPS
VRAC
VCS
DSFW
DSDR
DSFR
DSKY
CTFL
RTDT
DPGI
START
KEY
SPCH
SKYS
CIVE
CIV
3LO
AMOD
AAFO
SQSS
BANV
EALC
MSND
TRV
TRAS
SENI
ACC(2)
ACC(1)
J211
J701
J681
(CI-V)
(KEY)
MAIN UNIT
R
TKI
START
KEY
J691
ETST
ETKY
ET14
ETE
DSPF
J641
to EXT TUNER
(SEND(RL))
(ALC(EXT))
IC3551
SED1354F0A
AVCC
VREF
P40/AN0
P41/AN1
P42/AN2
P43/AN3
P44/AN4
P45/AN5
P46/AN6/DA0
P47/AN7/DA1
AVSS
VSS
P17/PO15/TIOCB2
P16/PO14/TIOCA2
P15/PO13/TIOCB1
P14/PO12/TIOCA1
P13/PO11/TIOCD0
P12/PO10/TIOCC0
P11/PO9/TIOCB0
P10/PO8/TIOCA0
MD0
MD1
MD2
PG0/CAS
PG1/CS3
PG2/CS2
PG3/CS1
PG4/CS0
VSS
NC
VCC
PC0/A0
PC1/A1
PC2/A2
PC3/A3
VSS
PC4/A4
PC5/A5
PC6/A6
PC7/A7
PB0/A8
PB1/A9
PB2/A10
PB3/A11
VSS
PB4/A12
PB5/A13
PB6/A14
PB7/A15
P
A0/A16
P
A1/A17
P
A2/A18
P
A3/A19
VSS
P
A4/A20/IRQ4
P
A5/A21/IRQ5
P
A6/A22/IRQ6
P
A7/A23/IRQ7
P67/CS7/IRQ3
P66/CS6/IRQ2
VSS
VSS
P65/IRQ1
P64/IRQ0
P53/ADTRG
P52/SCK2
VSS
VSS
P51/RXD2
P50/TXD2
PF0/BREQ
PF1/BA
CK
PF2/LCAS/W
AIT
PF3/L
WR
PF4/HWR
PF5/RD
PF6/AS
VCC
PF7/F
AI
VSS
EXT
AL
XT
AL
VCC
STBY
NMI
RES
WDT
O
VF FWE
P20/PO0/TIOCA3
P21/PO1/TIOCB3
P22/PO2/TIOCC3
P23/PO3/TIOCD3
P24/PO4/TIOCA4
P25/PO5/TIOCB4
P26/PO6/TIOCA5
P27/PO7/TIOCB5
P63/TEND1
P62/DREQ1
P61/TEND0/CS5
VSS
VSS
P60/DREQ0/CS4
VSS
P35/SCK1
P34/SCK0
P33/RXD1
P32/RXD0
P31/TXD1
P30/TXD0
VCC
PD7/D15
PD6/D14
PD5/D13
PD4/D12
VSS
PD3/D11
PD2/D10
PD1/D9
PD0/D8
PE7/D7
PE6/D6
PE5/D5
PE4/D4
VSS
PE3/D3
PE2/D2
PE1/D1
PE0/D0
VCC
VSS
I/O16
I/O15
I/O14
I/O13
I/O12
I/O11
I/O10
I/O9
NC
VSS
CAS
OE
NC
NC
NC
A7
A6
A5
VSS
VCC
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
I/O8
NC
VCC
OW
LW
RAS
A0
A1
A2
A3
A4
VCC
COREVDD
MA3
MA4
MA2
MA5
MA1
MA6
MA0
MA7
MA10
MA8
MA11
MA9
IOVDD
RAS
WE
UCAS
LCAS
VSS
MD7
MD8
MD6
MD9
MD5
MD10
MD4
MD11
MD3
MD12
MD2
MD13
MD1
MD14
MD0
MD15
VSS
FPFRAME
FPLINE
LCDPWR
DRD
Y
FPSHIFT
VSS
FPD
A
T
0
FPD
A
T
1
FPD
A
T
2
FPD
A
T
3
FPD
A
T
4
FPD
A
T
5
FPD
A
T
6
FPD
A
T
7
IO
VDD
D
A
CRD
BLANK
D
A
CCLK
VSS
FPD
A
T
8
FPD
A
T
9
FPD
A
T10
FPD
A
T11
FPD
A
T12
FPD
A
T13
FPD
A
T14
FPD
A
T15
VSS
VSS
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
DB8
DB9
DB10
DB11
DB12
DB13
DB14
DB15
VSS
IO
VDD
W
AIT
GPIOO
RESET
RD/WR
WE1
WE0
RD
BS
M/R
CS
AB0
AB1
AB2
AB3
AB4
AB5
AB6
AB7
AB8
AB9
AB10
AB11
AB12
AB13
AB14
AB15
AB16
AB17
AB18
AB19
AB20
IOVDD
VSS
BUSCLK
TESTEN
SUSPEND
CLKI
VSS
VRTC
HRTC
DACRS1
DACRS0
DACWR
DACPO
COREVDD
VCC
AO11
AO12
DO
LD
CLK
DI
AO1
AO2
GND
VDD
AO10
AO9
AO8
AO7
AO6
AO5
AO4
AO3
VSS
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
QS
QS
STR
D
CLK
OE
Q2
Q1
Q3
Q4
Q5
Q6
Q7
Q8
QS
QS
D
STR
CLK
OE
D3751
D3752
D3753
D3754
D3755
D3757
D3758
D3762
D3759
D3760
D3763
RXS
H5V
8V
T8V
14V
HV
R8V
-5V
14V
14V
14V
M5V
C3006
0.1
R3005
1K
C3031
0.1
R3007
470
C3016
10
C3638 0.1
R3650 4.7k
ALCL
SML
D3509
1SS372
D3602
1SS372
CS1
CS0
C3505
0.01
PWRS_
ASL
8V_
8V
C3602
100
C3603
0.1
FZRS
M5V
UNLC_
R3606
47k
R3607
47k
R3610
47k
C3605
0.1
C3604
470
PWRS
R3622 1k
C3624 0.0047
R3623 47k
R3502
47k
MR
L3604
RCR-875D-472K
W3504
R3505
33k
HSYNC
VSYNC
R3591
680
W
AIT
DRES_
8V
8V
R3741 270
R3740
150
MCK
ASTB
R3784
100k
C3554
0.01
R3558
1k
Q3551
DTA114EE
CRXD
CTXD
DRES_
CBSY
R3777
15k
LRES
UNSB
RANS
BSTB
ANTS
FSTB
UNSB
SQSS
DRES
R3732
47k
CP3008
CP3006
CP3004
CP3002
CP3007
CP3005
CP3001
CP3003
R691
10
3LO
from PLL
unit J701
M5V
M5V
M5V
J203
C210
0.1
CP641
CP642
CP644
CP643
CP671
CP664
CP666
CP670
CP663
CP668
CP669
CP665
CP661
CP662
CP681
CP682
CP701
CP702
CP693
CP691
CP692
J351
(EXT SP)
SPE
SSP
J352
SPE
W354
CP354
CP351
CP352
CP353
14V
RXS
H5V
8V
M5V
-5V
HV
HV
H5V
M5V_
RXS
8V
FZRS
H5V_
DRES
F
AI_
M5V_
RDP
M5V_
RXS
8V
M5V_
SSP
C643
0.0047
C663
0.0047
C666
0.0047
C667
0.0047
C668
0.0047
C669
0.0047
C670
0.0047
C661
0.0047
C662
0.0047
C665
0.0047
CP667
3R3V_d
H5V
8V
T8V
14V
HV
R8V
-5V
3R3V
Z1
M5V
BUS LINE
MAIN(1)
M5V
RXS
8V
H5V
M5V_
C3725
0.1
C217
0.1
C216
10
D215
MA2S111
D216
MA2S111
C215
10
I
O
G
IC215
AN78L08M
to DSP
board MF1
to DISPLAY
board J451
to MEMORY
board J1
to MEMORY board J2
TRV ON 0V
TRV OFF 4.8V
7.8V
RX 0V
TX 8.0V
TRV OFF TX 8.0V
EXCEPT 0V
RX 0V
TX 4.4V
RX 0V
TX 4.4V
0V
800mV
2.45mS
CW KEY DOWN
SIDE TONE LIMIT:OFF
230mV
38nS
25mV
0V
RX 0V
TX 4.4V
RX 6.5V
TX 0V
MEASUREMENTCONDITIONS
VOLTMETER
:50k
Ω
/VDC
OSCILLOSCOPE :20MHz
DISPLAY
:14.1MHz USB
10-5 MAIN UNIT (2)
10 - 5