Main Unit - Icom iF110 Service Manual

11-2 MAIN UNIT

MAIN UNIT (1)
J1
SCK
R266 47k
OV12
SI
OV12 R267 27k
SO
DAST R268 10k
CIRQ
GND
CCS
OPT3
REM
OPT2
DISC
OPT1
DET
to
Optional SIGO
unit
RMUTE
NC
BEEPO
BUSY
AFONO
NC
MMUTE
MCIN
VCC
MCOT R271 100
5V MIC CP23
PTTO
GND
PTTI
CP24
PTTO
PTTI
550mVrms
(40mVrms at mic terminal)
FRONT UNIT
J2 J2
DIM
GND DIM
GND
DAST
TONE DAST
TONE
OPT3
TENC OPT3
J1 TENC
OPT2
8V NOIS OPT2
NOIS
CL0
OPT1
AFO EXOE OPT1
to EXOE
PTT
mic PTTO
MICE EXST PTTO
jack
EXST
MIC
PTTI
GND UNLK PTTI
UNLK
CLI
REM
PLST REM
PLST
SCK
CDEC SCK
CDEC
SI
SDEC SI
SDEC
SO
OV12 SO
OV12
CIRQ
RSSI CIRQ
J3 RSSI
CCS
CPU5V NC LVIN CCS
LVIN
MIC
P86 OPT2 TEMP MIC
TEMP
EPTT
P87 RES BATV EPTT
BATV
NC
OPT1 NMI NC NC
NC
BEEP
PWON GND NC BEEP
NC
PWON
GND GND 5V PWON
5V
8V
GND GND CPU5 8V
CPU5
GND
AFO GND
AFO
5.0V
R110
47
X2
R220 C161
SCK CR-740
47k 100p
REF
Q19
SI 2SC4215
R221 C200
OV12
47k 0.1
SO
DAST BAL
R210
CIRQ
100K
C163 R222
10 10k
CCS
OPT3
REM
OPT2
DISC
L29 15.3 MHz
OPT1
1.8µ 940mVp-p
DET
SIGO
RMUTE
R93 D37
1k MA2S111
BEEPO UNLK
BUSY
AFONO IC4
MB15A02PFV-1
MMUTE SCK 9 8
CLOCK FIN
SO 10 7
DATA LD
PLST 11 6
LE GND
12 5
FC DO
13 4
NC VCC
b 14 3
FOUT VP
15 2
P OSCOUT
16 1
B OSCIN
VCC
MEASUREMENT CONDITIONS
VOLTMETER
Amplitude(Oscilloscope) : 100 MHz
Frequency : 155 MHz
Transmission : 25 W
R145 1k TONE
R144 1k TENC
NOIS
CDEC
SDEC
R146 1k CCS
TEMP
LVIN
OV12
CP25
AFO
11 - 2
Q17
2SC4116
Q18
2SK880
6.9V
CP1
L28
3.3µ
L39
44n
R97 R95
1 220
W10
C300
10p
L27
C337 L32
3.3µ
0.001 33n
L38
67n
3.1V
C309
0.01
8
V+
IC5
NJM12904V
GND
4
C304
10p
R116
12k
Q34
IC16
C167 C168 C169 2SC4116
R330
NJM12902V
4.7k 0.047 0.047 0.047
DISC 12
+ 14
13
-
R120 10k
R333 Q38
DET
100k 2SC4213
AFSW
R123 R122
100k
8.2k
C181 IC5
NJM12904V R129
0.1
b 5 100
+
7
6
-
C182
0.0056
C184 680p
R126
R127
470
39k
MOD
IC14
BU4066BCFV
MMUT
1
I/O
2
O/I
3
BEEPO
O/I
4
I/O
MMUTE 5
AFON
CONT.B
6
CONT.C
7
IC17
VEE
BU4094BCFV
AFONO
EXST 1 16
STR VDD
SO 2 15 EXOE
D QE
SCK 3 14
CLK Q5
RXC 4 13 TMUT
Q1 Q6
5 12 HORNO
Q2 Q7
NWC 6 11 BUSY
Q3 Q8
RMUTE 7 10
Q4 QS
8 9
VSS QS
RMUT
R85 R79
3.9k 1.8k
C127 L26 C126
15p 92n 33p W4
Q14 C113
2SC4226
0.75p
TX: 4.3V
RX: 0V
R80
1k
R84 R83
3.9k 1.8k
Q15
C124 L25 C123 R328
XP1214
270p 67n 68p 4.7
4
Q13 C118
2SC4226
0.5p
5
R78
1k
TX: 0V
RX: 4.3V
C350 R291 C287
1 100k 0.0033
C297
22p
4.9V
R39
47
C306 C308
4p 3p
IC1
TA31136FN
1 16
OSCIN MIXIN
2 15
OSCOUT GND
C384 0.1 3 14
MIXOUT N-REC
FI2 4 13
VCC N-DET
ALFYM450F=K
C385 0.1 5 12
IFIN RSSI
6 11
I O
DEC IFOUT
7 10
FILOUT QUAD
8 9
FILIN AFOUT
R44
220k
R45
WIDE:1.1V
150k
NARROW:1.3V
VCC
14
VDD IC5
13
NJM12904V
CONT.A
R188 C359
12
CONT.D 2 560 1
11 - 1
I/O 3
+
10 R184
O/I
C283
33k
9
O/I 0.001
8 DET
I/O
TENC
DAST
SCK
SO
BAL
R324
100k
a
b
3
2
1
Q16
DTC144EU
c
RXC
R8V
TX: 0V
RX: 7.2V
MAIN
C61 UNIT
4.9V
100p
(2)
C62
82p
Q4
2SC4215
C65
0.001
C63
Q5
47p
DTC144EU
d
WIDE: 5.0V
NARROW: 0V
BUS LINE1
VCC
e
IC6
R231
M62363FP-650C
1
1 24
VIN1 VIN8
2 23
VOUT1 VOUT8
3 22
VOUT2 VOUT7
4 21
VIN2 VIN7
5 20
VDD GND
6 19
LD RESET
7 18
CLK VDAREF
8 17
DI DO
9 16
VIN3 VIN6
10 15
VOUT3 VOUT6
11 14
VOUT4 VOUT5
12 13
VIN4 VIN5
5V
CPU5V
8V
BUS LINE2