Icom iF110 Service Manual page 34

MAIN UNIT (2)
a
6.0V
6.4V
C102
10p
b
Q11
2SC5107
Q10
4.9V 2SC5107
Q12
2SC5107
c
R8V
Lo level
1~3dBm
C49 R28
TX: 0V
18p 12
RX: 7.2V
MAIN
UNIT
Q3
(1)
3SK299
C40
FI1
1.5p
FL-335
d C41
22p
TX: 0V
RX: 0.7V
BUS LINE1
R8V
VCC
VCC
C379 C245
0.01 0.01
e
R243
2
82k - 1 SDEC
3
+
R240 R242 IC16
C315
0.022 100k 39k NJM12902V
C321
0.1
IC16
R247 R248 R249 IC16
NJM12902V
NJM12902V
22k 22k 22k
R252
5
+
7 10 470
6 + 8 CDEC
- 9
-
C324
R250
470p
100k
R251
470k
4
V+ IC16
GND NJM12902V
11
5V
CPU5V
8V
BUS LINE2
T8V
IC3
TX: 6.9V
RX: 0V S-AV33 [25W]
S-AV32 [50W]
5
1 2 3 4
TX: 2.9V
C100 C92 L43 L18 C510
RX: 0V
10p 15p 47n 47n 15p
Q8
D14 C93
2SC3356
MA77 15p
TX: 2.2V
RX: 2.0V
TX: 0V
RX: 2.7V
FI4 FI3
NFM60R- NFM60R-
20T152 20T152
D50
MA2S111
R319
TX: 0V
18k
RX: 6.4V
C363 TX: 0.2V
Q1
0.1 RX: 2.1V
2SK1829
R320
470k
C343
0.01
C30 C22
Q2
22p 1.5p
3SK293
TX: 0V
TX: 0V
RX: 3.7V
RX: 5.6V
R22 R14
10k 10k
TX: 7.9V
Q25
RX: 0V
2SD1664
R304
22k
D23
DA221
Q29
DTC114TU
TMUT
7.9V IC9
Q26
TA7808F
2SA1577
O I
G
TX: 0V
RX: 7.8V
Q30
R204 R205
DTC144EU
4.7k 10k
RXC
5.0V IC10
Q27
AN78L05M
2SA1577
O I
G
5.0V
6 5 4 Q24
DTC144EU
Q28
XP6501
R156
1 2 3
4.7k
POWER ON: 4.9V
OFF: 0V
T8V
D3
6
XB15A407[50W]
D2
L16 UM9401F C14 L3 L2
AS080547-47N [25W] 0.001 AS080547-47N AS080547-47N
FI5
NFM60R-
20T152
[50W]
HV
T8V
R214
1.5k
R10 TX: 6.0V
C511 R9 RX: 0.2V
270k
0.3p 10k
D12
1SS375
C79
TX: 5.7V [50W] only 0.22
RX: 0.2V
R56
150k
R58
2
100 3
4
1
5
IC2
TA75S01F
C25 C19 L6
6p 0.001 39n
Q20
2SC4116
[50W] only
T8V
VCC
R287
10k
R194
2.2k
C249
0.0022
R193
470k
13.2V
1 5
4
3
Q23
2
2SJ377
IC15
TA75S01F
VCC
R200
HV
10k
R238
100k
MEASUREMENT CONDITIONS
VOLTMETER
Amplitude(Oscilloscope) : 100 MHz
Frequency : 155 MHz
Transmission : 25 W
R3
47
L1
AS080547-47N
R5
R6
10k[25W]
33k[25W]
27k[50W] 27k[50W]
TX: 2.9V
RX: 1.8V
TX: 0.1V
RX: 4.8V
D28 R55
MA2S728 4.7k
R57
10k
AF ON: 4.5V
OFF: 0V
AFON
Q36
DTC144EU
Q35
DTC363EK
R197 C252
10k 0.1
AFO
R195 C251 C253
C256
1k 0.1 0.022
1 5 470
4
2
3
IC8
C246
LA4425A
0.1
Q33
DTC144EU
Q37
DTC144EU
R336 C295 Q31 R225 C288
E 68k D 10 2SJ144 10k 0.1
R230
68k F
R224 C289
47 0.1
R226 D26 R223
100k MA2S111 1k
4.4V
11 - 3
J1
W1
J4
J7 P1
+
-
CHASSIS
SP1
EP4
HV
EP5 W2
J6
VCC
GND
DIM
HORN
GND
AFO
GND
to
OPC-617
DISC
GND
IN
GND
PTT
GND