Icom IC-2730A Service Manual page 46

• MAIN UNIT (1/8)
13.64V
HV
8V 2SA1362
8.02V
Q28
FANHV
Q27
LDTC114YE
R132
VTX_C
1k
D50
V_LOOUT
1SV308
8.02V
Q34
2SA1362
LDTC114YE
Q32
R140
UTX_C
1k
C229
U_LOOUT
0.001
T:1.77V
13.64V
EP1
MPZ1608S221A
FAN
FAST :12.75V
MID :10.71V
SLOW : 8.92V
MMZ1005Y102CT
EP2
Q29
2SC4738
T:4.09V
T:0.69V
R168
C226 R147 C233 L53
68
Q40
0.001 39 0.001 18N
MT3S20P
T:0.47V
T:6.23V
T:4.76V
T:5.97V
R156 C243 C251 C257 R175
Q37
15 10P 2SC5108 3P 3P 22
2SC5108 Q38
T:1.04V
T:0.67V
CHASSIS unit
J1
1 1
2 2
MPZ1608S221A
T:7.51V
TX Hipower
12.71V(#01)
13.16V(#21)
C267 R179 R186 L67
33P 10 10 AS080647
C304
0.001
T:0.99V
H:4.19V
M:3.61V
L:3.36V
H:4.13V
M:3.00V
L:2.62V
C281
T:0.61V
6P R195
Q41
18
MT3S20P
T:7.96V
R: 0V
JDP2S12CR
L68 C360 D66 C372
AS080647 0.001 0.001
C338
0.001
R218 R230
330 100
NJM2904CV
IC2
1
L80
AS080647
T:7.96V
R: 0V
TX Hipower
12.56V(#01)
13.20V(#21)
JDP2S12CR
C370
0.001 JDP2S12CR
D67
C325 C365
0.001 0.001
LRB706F
R215
680k
NJM2904CV
IC2 6
7
5 Q46
R203 LDTA144EE
0
R234
PRF18
*: Refer to the PARTS LIST for the value and name of component.
10-2
J2
1
AS100340
L87 L90
AS080447
R251 R256
2 TX_MUTE
33k 330k
Q48
3
LDTA144EE
PCON_V
L85
57.2N
4P
C395
D84
D68 L86 L92
AS080340 12.1N
8V
8
V+
GND
4
R242
330k