Icom IC-7600 Service Manual page 132

PREAMP BOARD
D4102 C4102
1SV307 1
KRA302E
L4101
Q4102
150U
KRC402
Q4101
14VC
100U
L4207
PR1S
Q4203
KRA302E
L4205
LR-440
C4221 Q4201
1P
2SC5551A-F-E
1
D4202 L4210 LR-439
C4215
2 PR1S_
3
0.12U 1
1SV307
4 RX-RF
5
L4208
L4206
14VC LR-440
R8V_
C4222 Q4202
1P
2SC5551A-F-E
D4203
KDS4148U
Q4205
Q4204
KRA302E
PR1S
KRA302E
D4302 C4306
1SV307 1 L4303
Q4302
2SC5551A-F-E
LR-489 R4304 L4302
100U
8.2
L4304
LR-500
1
R8V_
2 14VC
3 PR2S
4 Q4304
PR1S
KRA302E
5
Q4305
KRC402
D4303
KDS4148U
Q4303 Q4301
KRA302E KRA302E
PA UNIT
D4101
TX-RF
1SV307
POFFS
0.001
C41
PAI
1
R2 L14 C1
PAI
2
To RF UNIT
3
0.1
18
4
5
LR-360
D4201
C4201
1 J1
1SV307
TMP-J01X-V6
LR-439
L4202
5.1
0.0
1 C1608 16V X7R D4301
C4302 1SV307
MF+
To clooing fan (CHASSIS)
MF-
J101
B2B-PH-SM4-TB
10 - 25
3.3
180
R17
0.0
Q2
R9
RD15HVF1
330
L1
Q1
LR-361
RD06HVF1
Q3
RD15HVF1
R18
180
13.4
13.8
R5
2.2K
FAN OFF Low Mid High
VOL 0.4 7.0 8.5 10.2
R105
Q101
MF+
1
GND 1 2SB1201 8
2
V+
IC101
GND
LM2904PWR
4
R110 R111
22K 22K
6
IC101
10K
7
R112
5
R109
10K
LM2904PWR
D101
MAZ8047GM
18
R76
C131
C57
0.0068
R77
0.0068
18
R83
5.6
C133
R69
Q4
0.001
C135
RD100HHF1C
5.6
100P W1 4
L4 23/06
J10
LR-143 RT01T-1.0B
R70
C136
5.6 Q5
C134
RD100HHF1C
100P R84
0.001
5.6
18
R75
C58
C132
0.0068
13.3
0.0068
R74
13.8
18
4.3
0.0
0
R87
R45
RL1
0
Q9
KRC402
AJS1311F
0.2
IC1
BA033FP
I O
G
3.3
IC2
KIA7805API
3.9
I O
R44 COM
IC3
KIA7808API
I O
COM
FAN OFF Low Mid High
VOL 0.0 1.5 2.25 3.0
PAO
L6 L21
PAO
LA-262
LR-393
J2
TMP-J01X-V6
13.4
13.8
R31
1K
R29
1K
EP4
F4053A
1
PHV
2
PHV
3
4
GND 1
2
3 PGND
4
EP5
F4053A
3.3
PAT8
30
8V
29
28
27
PWRS
26
H3R3V
25
5V
24
23
22
IDL
21
IDH
20
14V
19
18
17
16
15
14
13
12
11
H14V
10
5.0
9
FANV
8
THM L
7
6
GND
5
4
3
2
1
J3
30FMN-BMTTR-A-TBT
8.0