Icom IC-F29DR Service Manual page 22

SECTION 9. VOLTAGE DIAGRAM
• MAIN UNIT (1/3)
2SA1586
MAIN UNIT (2/3)
S5V Q3
DC_SW
4.9 V
HV
5V S5V
5V
Q2
R8
S5C
S5C
3.3V
3.3V 12k R17
LDTC114YE
TXC
RXC
100k
RXC
MOD
VCON
VCON
T1
T1
T2
T2
LVA
PLSW
R5
5V
TMUT
ADS
ADS 100 R13
LVSW 82k
LVIN
LVIN
UNLK
UNLK
NOIS
NOIS
LVA_SW
PLSO
PLSO
PLCK
PLCK
PLST
PLST R14
PRES R4
PRES
PPDN
330k 18k R22
PPDN
RSSI
100
RSSI
SQIN
SQIN
DISC
DISC
RFPC
RFPC
MAIN UNIT (3/3)
BFSR0
BFSR0
BCLKR0
BCLKR0
BDR0
BDR0
5V
3.3V
R68
42
10k
CPVDD
41
DVDD
40
ADVDD
UNLK R74 47 39
LD
NOIS R75 47 38
DETO/SDATAOUT
37
AGC_KEEP
PLSO 36
SDATAIN
35
PLCK
SCLK
34
PLST
CSN
33
BFSR0
AD_CSN
BCLKR0 32
AD_SCLK
BDR0 R76 220 31
AD_SDO
PRES 30
RSTN
PPDN 29
PDN
R378
0
RSSI
R60
180k
C116 R379
SQIN
C408 R69
0.001 0
120P 10k
Noise
Q46 Filter
ADS
LDTC114YE
Q8 2SC4116
S5V
Ripple
R29
VCOV Filter
0
MOD
R28
C27
100k
1
MMZ1005Y102CT
VCO_TX
R34 R44
6.8k 6.8k
Q5
L1 C44 C58 R41
1U 18P 10P 4.7
2SC4226
C80
MMZ1005A152ET
0.5P
LDTC114YE
Q9
R38
L3 470
TX 0. 0 V
MP1 3621
0.47U
RX 1.6 V
TX 2.1 V
L4
VCO_RX
RX 2.2 V R35 R45
0.47U
6.8k 6.8k
Q6
L2 C46 C59
15P
1U 9P
2SC4226 1P
C82
MMZ1005A152ET
Q7
LDTC114YE
R50
LoopFilter R5V
470
Q4
LDTC114YE
RXC
TX 1.6 V
RX 0. 0 V
Q20
5V R5V
2SA1586
Q19
R92
10k
LDTC114YE
DC_SW
R5V
C76
100P
1
RFIN
2
AVSS1
3
IFOUTP
4
IFOUTN
5
MIXVDD C42
6
IFIP
7
IC2 AVSS2 C52 0.01
8
LO2NDIN
9
TRIOUT
100P
10
REFIN
11
NC
12
NC
13
NC
14
NC
5V *3multi
MMZ1005Y102CT
EP1
15.3 MHz
3.3V
1.0 Vp-p
X1
0.001 GND VCONT
2 1
OUT VCC R386
3 4
C37
CR-996
220k
TCXO
15.3MHz
R46 220k
R48 1M
C75 0.001
9-1
5V
TX 4.9 V
TXC
S5V
DC_SW RX 0.0 V
VCOV KTA2015 T5V
Q15
4.2 V
Q14
LDTC114YE
R64
3.3k
EP4
3.9 V
TX 1.7 V
S5V
RX 0.0 V
R77 C123
0 5P C128
4.8 V
0.001
C114 T/R
SW
7P
Q16
C104
TX 1.0 V
Q11
5P RX 1.4 V
2SC5108
2SC5108
VCO
AMP
VCO S5V
BUFF
TX 0. 0 V
4.6 V
RX 2.1 V
LPF
C125 L17
100P 27N
TX 0. 0 V
RX 4.9 V
C92
R5V
Q13
7P C110
4P
PLL
2SC5108
BUFF
MCF
Analog
FI1 FL-487
R6
OUT GND R19
2 3
10 GND IN
4 1
0
R5V R5V
Ana 2.9 V
R10 R20
Dig 0.0 V
3.3k R1 3.3k
ADS
Q1
1k
LDTC114YE
C29
0.01
R9 R16
10k 10k
FI2 FL-486A
R7
OUT GND
R21
2 3
GND IN
ERJ2GE-JPW
4 1
0
VCON
MCF
Digital
HV
7.5 V
MMZ1005S800CT
EP5
PAV
TX 1.7 V
RX 0. 0 V
C134 L23 L25
C151
Q21 Q23
18P 2.8N 2.8N
56P
RD01MUS2B RD07MUS2B
Q18
2SC3356
DRIVER PA
Pre
DRIVER
T5V
C175
0.22
R113
TX(0.5 W) 1.45 V
C167 220k
TX(1 W) 1.30 V
RX 0.00 V 0.1
R106
APCV 4
560
TA75S01F
APC
R5V
TX 0.0 V
TX 0.0 V
RX 4.6 V
RX 4.6 V
R366
L39
120k 33N
BPF
C148
0.75
C135
Q45
6
3SK293
TX 0.0 V
RX 0.4 V
LNA
1st_MIX
TX 0.0 V
RX 0.7 V
R90
10K
*Refer to the PARTS LIST for the value and name of component.
T5V
ANT
LPF
C183 D18 C190 L29 L32 L34
10.3N
13.6N 13.6N
0.001 BAR88 0.001
C194 C202
2.5P 1P
L30
18N
TX 0.8 V
RX 0.0 V
IC3
R123
5 R116 R130
3
10k 0 1k
1
PWR
2
DET
R124
RFPC
100k
Q22
L24 C174 C186 C197
C207
22N 10P 2.5P 12P 0.001
3SK293
R111
1k