Icom IC-F2000 Service Manual page 42

• MAIN-B unit (for #23~#25, #38, #40, and #48~#50: 1/3)
HV
HV
T5V
+3 _ 3V
S5V
HV
+5V
S5V
R5V
T5V
R5C
SO
SCK
PLST
NWC
+5V
8
V+
IC14
TC7W66FU
MOD GND
4
VCON
SQIN GP01
7
LVA
LVIN
T1
T2
R147
LVIN
100k
RSTN
Q24
RSSI LDTC144EE
DISC
NOIS
UNLK
FSIO
FSCK
FSCN
EP5
PLL
MMZ1005Y102CT
TMUT +5V
5V
1
CPVDD
2
TEST3
R153 3
TEST1
IC15
PLST 4
LE AK1542A
SO 5
DATA
SCK 6
CLK
UNLK
1k
S5V
GP01
GP02
+3 _ 3V
C180
0.01
VCON X3
C445
4 3
VCC OUT
1 2
VCONT GND 0.001
CR-978
HV
5.0 V
T5V
4.2 V
S5V
Q23
2SC4116
VCOV
L3 RX VCO
R167 R168
0.47U
6.8k 6.8k
D10
C187
18P
1SV323
C188 C202
Q25
9P 15P 2SC4226
C224
0.75P
TX VCO
R166
C186 R169
18P 6.8k 6.8k
C193 C206
Q27
5P 10P
2SC4226
C227
0.5P
R159
EP9
MMZ1005A152ET
100k
R178
MP3 3621
560
TX: 0 V
RX: 1.6 V
R160
220k
IC14
TC7W66FU
6 5
R254
0
18
PVDD C390
17 100P
RFINP
16 TX: 0 V
RFINN
15
VREF RX: 3.1 V
14
C199
DVSS
13 0.22 C217
GPO2
100P
C215
6P
Q26
2SC4116
C198
10P
24
DETO
23
SDATA
22
TX: 0 V SCLK
×3 MULTI
21
IC16
CSN
RX: 0.6 V
20 SC-1451A
RSTN
19
PDN
18
AVSS2
17
IFOUT
15.3 MHz
R173
1.1 V p-p
1k
HV
7.5 V
TX: 1.0 V
RX: 1.3 V
0.8 V 0.8 V
D16
C253 R337 C264
10P 0 5P
R349 C250 BAR88
470 5P
Q30 Q31 TX: 1.7 V
2SC5108 2SC5108
RX: 0 V
Q29
LDTC114EE
TX: 0.6 V
R5V
RX: 0 V
TX: 1.6 V
RX: 0 V
Q28
LDTC114EE
R5C
0.8 V
Q32
2SC5108
C257
C441
5P
4P
TX: 0 V
RX: 2.0 V
R5C
R5V
IF IC
C258
1
IFIP
2 FI1
NC 100P
FL-335A
3
NC
4 4
NC C274 R205 GND IN
5 Q33 2
NC OUT GND
2SC4215
6
VREFA 0.01
150
7
AVSS
8
AVDD
IF AMP
Explanatory notes
8-4
HV
HV
T5V
TX: 5.0 V
RX: 0 V
EP10
MPZ2012S331A
HV
EP15
MMZ1005S800CT
L23
2.8N
C281 C282
Q36 Q38
RD01MUS2B RD07MUS2B
0.001 18P
C306
36P
MP5
Q35
3621
2SC3356
APCV
TX at 4 W: 1.3 V
at 1 W: 1.1 V
RX: 0 V
R222
PRF18
L20 C293
47N 47P
R213 R406
120k 10k
TX: 0 V
RX: 0.6 V
R407 C299 C323
Q37
3SK293 0 10P 0.5P
1
3
TX: 0 V
RX: 0.6 V
MIX RF AMP
VOLTAGE LINE
TX LINE
RX LINE
T5V
MP15
3620
TX: 1.6 V
RX: 0 V LPF
D19
BAR88 C348
C349
3P
2P
MP4
R245 R246 OG-503040
1k 1k
T5V
APC
C334
0.1
TMUT
R232
180k
R234
5 3
4
47k
R235
1
2
IC17
100k
TA75S01F
T1
TX: 2.4 V
RX: 2.5 V
R5V
AGC
C338
Q43
0.47
2SK1829
R249
RSSI
R237
220k
18k
TX: 0.8 V
RX: 0 V
Q39
3SK293
C346 C362 C364
L35 4P 8P 22P
22N
TX: 0 V
RX: 1.8 V