Icom IC-703 Service Manual page 77

PA UNIT(3)
IT8V
IT3V
PLD moving: 3.0V
un-moving: 0V
IT3V_
1
I/057
CRR 2
I/058
CRS 3
I/059
4
NC
5
R611 1k I/060
TOE 6
I/061
MCK_ 7
I/062
MDT_ 8
I/063
9
NC
10
C602 0.1 Y0
11
RESET
12
VCC
13
R601 10k G0E1
14
GND
R606 1k 15
BSCAN
16
TDI/IN0
L9R 17
R607 1k I/00
L9S 18
I/01
L8R 19
I/02
L8S 20
I/03
21
NC
L7R 22
I/04
L7S 23
I/05
L6R 24
I/06
25
NC
IT3V_ IT3V_
TUNE: 2.5V
UN-TUNE: 0V
W641
TDTS
D641 W642
1SS355
C644
0.0047
R680 10k
PA Q640
2SK3018
UNIT(2)
RL640
AHY107
PO
b
R655 220
44V
R657 220
71nS
R658 220
(ANT terminal:50 )
D640 D642
RB876W DA221
14V
71nS
C642 (ANT terminal:50 )
D643
330p L640
HSB88WS
LR-317
C680
120p
C672
0.1
R682
D644 MA2S111
IC640 IC640
27k
TA75393F TA75393F
2 5
TPHK 1 - 7 +
3 6
+ -
R642 10k
R648
W647
10k
TPZS
MDT_
MCK_
IT3V
8
RX: 3.2V
V+
IC601
IC640
TC7W08F
TA75393F
GND
Q602 4 1
IT3V_ 2SA1162 2
3
4
Q603
2SK3018
R617
1k
BUS LINE1
IT8V
ANT
75
NC
74 C9R
I/038
73 C8S
I/037
72 C8R
I/036
71
NC
70 C7S
I/035
69 C7R
I/034
68 C6S
I/033
67 C6R
I/032
66
NC
65
Y1
64
NC C609 0.1
63
IC600
VCC
ISPLSI2064VE-100LT100
62
G0E0
61
GND
60
Y2 R612 1k
59
TCK/IN3
58 C5S
I/031
57 C5R
I/030
56 C4S
I/029
55 C4R
I/028
54
NC
53 C3S
I/027
52 C3R
I/026
51 C2S
I/025
L644
10
D647 L645
W643 1SS355 W644 10
C661
0.0047
R678 10k
Q642
2SK3018
6.8V RL641
AHY107
71nS
C673
(ANT terminal:50 )
10p
L642
R664 56 W645
IT8V
LR-436
R662
56
Q644
R673 47
DTA114EU
R671 560k
R665 56
Q641 Q645
2SK882 2SK3018 R685
C655 10p 1k
R669
1k
L641
LR-317
W640
R684 560k
1.6V
71nS
Q643
2SK882
C652 C656
330p 330p
Q811
C681 C682
2SC4405
120p 120p
C653 C657
0.1 0.1
IC641
IT3V TC4W53F
R661 R667
1 8
47k 47k
2 7
R696
3 6
100k
4 5
8
7
6
5
Q646
2SK3018
R694
1k
TPZL
chassis
J1
ANT
CP642
J642
J641
J640
11 - 11