Voltage Diagram - Icom IC-F2000 Service Manual

SECTION 8

VOLTAGE DIAGRAM

• MAIN unit (for #11~#19, #21, #35~#37, and #42~#44: 1/3)
HV
HV
T5V
+3 _ 3V
S5V
Q23
2SC4116
HV
+5V
S5V
R5V
T5V
R146
R5C
2.2k
SO
SCK
TX: 2.2 V
PLST
RX: 1.9 V
NWC
R142
+5V
8
100
V+ IC14
TC7W66FU
MOD GND
4
VCON
SQIN GP01 7
LVA
LVIN
T1
T2
R147
LVIN
120k
RSTN
Q24
LDTC144EE
RSSI
DISC
NOIS
UNLK
FSIO
FSCK
FSCN
EP5
PLL
MMZ1005Y102CT
TMUT +5V
5V
1
CPVDD
2
TEST3
R153 3
TEST1
PLST 4
AK1542A
LE
SO 5
DATA
6
SCK
CLK
UNLK
1k
S5V
GP01
GP02
+3 _ 3V EP4 MMZ1005Y102CT C180
0.01
VCON X3
EP20 C445
4 3
VCC OUT
1 2
0.001
VCONT GND
MMZ1005D241C
CR-978
15.3 MHz
HV
HV
5.0 V
T5V
4.2 V
S5V
VCOV
EP7
RX VCO
L3 MMZ1005Y102CT
R167 R168
0.47U
6.8k 6.8k
C187 D10
39P 1SV323
L2 C188 C202
Q25
1U
9P 15P
2SC4226
L4
TX VCO
0.47U
D11
C186 R166 R169
68P 6.8k 6.8k
1SV323
L5 C193
C206
R170
1U Q27
12P 15P
2SC4226
4.7
C227
0.5P
R159
EP9
MMZ1005A152ET
100k
R178
MP3 3621
470
TX: 0 V
RX: 1.6 V
R160
220k
IC14
TC7W66FU
6 5
R162
22k
R254
0
18
PVDD C390
17 100P
RFINP
16
RFINN
IC15 TX: 0 V
15
VREF
14 RX: 3.1 V
DVSS C199
13 C217
0.22
GPO2
100P
C215
6P
Q26
2SC4116
C198
10P
24
DETO
23
SDATA
TX: 0 V
22
SCLK
×3 MULTI
RX: 0.6 V 21
CSN
IC16
20
RSTN
SC-1451A
19
PDN
18
AVSS2
17
IFOUT
R173
1.1 V p-p
1k
TX: 1.7 V
RX: 0 V
C224
0.8 V
D16
1P 0.8 V BAR88
C253 R337 C264
10P 0 5
R349 C250
470 5P
Q31
Q30 TX: 1.0 V
2SC5108
2SC5108
RX: 1.3 V
Q29
LDTC114EE
R5V
TX: 1.6 V
RX: 0 V
Q28
LDTC114EE
R5C
Q32
0.8 V
2SC5108
C257
C441
6P
10P
TX: 0 V
RX: 2.0 V
C455
5P
R5C
R5V
IF IC
C258
1
IFIP
2
FI1
NC 100P
3 DSF753SBF
NC
4 4
NC GND IN
C274 R409 R205
5 Q33 2
NC OUT GND
2SC4215
6
0.01 0 150
VREFA
7
AVSS
8
AVDD
IF AMP
R182
180k
Explanatory notes
VOLTAGE LINE
TX LINE
RX LINE
C246
82P
8-1
HV
HV
T5V
7.5 V
TX: 5.0 V
RX: 0 V
EP10
MPZ2012S331A
HV
EP15
MMZ1005S800CT
L23
2.8N
C281 C282
Q36 Q38
RD01MUS2B RD07MUS2B
18P
C306
Q35
2SC3356
47P
MP5
3621
APCV
TX at 4 W: 1.3 V
at 1 W: 1.2 V
RX: 0 V
R222
PRF18
L20 C293
56N
47P
R213 R406
120k 10k
L48 C299 C323
Q37
3SK293 6.8N 9P 0.5P
1
3
MIX RF AMP
TX: 0 V
RX: 0.6 V
T5V
MP15
3620
TX: 1.6 V
RX: 0 V
L29
L26 D19 10.3N L30 L31
C331 C332
2.8N 0.001 0.001 13.6N 13.6N
BAR88
C348
C349
3P
1.5P
MP4
OG-503040
R245 R246
1k 1k
L34
D20
22N
L1SS400
T5V
APC
C334
0.22 R338
TMUT
33k
R232 Q40
LDTA144EE
470k
R234
5 3
4 47K
R235
1
IC17 2
100k
TA75S01F
T1
TX: 2.4 V
RX: 2.5 V
R5V
TX: 0.8 V
RX: 0 V
AGC
C338
0.1 Q43
2SK1829
R249
RSSI
R237
220K
10k
Q39
3SK293
C343 C346 C362 C364
L35 7P 2P 8P 22P
22N
R241 R250
10k 10k
TX: 0 V
RX: 1.8 V