Icom IC-E208 Service Manual page 50

MAIN UNIT (4)
o
BUS LINE1
HV_I
5VS_W
5VS_W
u
D7 Q515 Q516
DAN222 UNR9114J UNR9213J
UR5
U_RXLO
D530 D529
HVC136 HVC136
R115
47
v
C105
0.001
w
Q18
2SC4226 C111 R126
0.01 270
e
MAIN
UNIT
(3)
C597
27p
IC12
µPC2757TB
4
PS
D10 L64
5
HVC136 0.33µ VCC
6
IFO
C135
0.001
D12
DAN222
f
D19
MA2S728
W505
g
D18 C167
HVC136 0.001 W506
Q37
2SC5008
BUS LINE3
BUS LINE2
5VS_W
V_RXLO
R147 RX: 3.9V
100 TX: 0V
C133
0.001 W514
C176 C181
W523 2p 1p
Q32
RX: 1.1V 3SK299
TX: 0V
R181
220k
W515
TUNE_V2
TUNE_V3
FI3
R132 C122
FL-344
5
270 10p
4 1
GND IN
R168 R169
2 3
OUT GND 2.2k 100
6
R149
W525 2.2k
D9 C134
W524 HVC136 0.001
W518
Q35
3SK299
C147 W519
0.001
D21
MA2S728
R163 R620
4.7k 47
D17 C166
HVC136 10p
3
LO
C149 C182
2
GND 0.01 4p
1 Q36
RFI
2SC5006
R190 D24
10k MA2S077
HV_I
R641
220
R192 C188 C223 R207 C243
C206
22 4p 100p 47 5p
1p
Q41
2SC5624
5VS_W
RX: 4.3V
TX: 0V
R199
10
L32
W544 W545 C2012C-68NG
Q38
C198 C204 C214
3SK299
1p 2p 0.001
R195
220k
R189
220k RX: 0.8V
TX: 0V
TUNE_V1
R201
10
C248
18p
FI4
EFCH445MWNP1 [USA]
EFCH435MWNP1 except [USA]
2 1
C187 C215
8 7 6 5 4 3
2p 1.5p
Q39
3SK299
W520
C205 C242 C261
1.5p 22p 10p
Q40
R194 D38
2SC5008
100k MA2S077
R197
100k
TUNE_U TUNE_U
HV_I
630-999.990MHz
C260 C269 D44 C298 C302 C304
4p 100p 1SV308 1.5p 0.75p 1.5p
EP520
FAN_CT
R240
1k
W529 W531 W533 W535 W537 W539 W541 W543
W530 W532 W534 W536 W538 W540 W542
W521
W522
118-174MHz
L40 C280 L53 L57
C2012C-R18G 6p 54n 68n
C247
5p
R239
220k
TUNE_V1
230-630MHz
D42 C281 L54 L59
1SV308 0.001 15n 22n
L41
C2012C-56NG
4.8V
5VS_W
Q44 R259
2SC4081 150
R257 R627
10k 10k
D43
1SV308
Q43
R243
UNR9115J
10k
J1
EP1
EP2
Q15
2SC4116
Q17
2SC4116
CHASSIS
J2
W2
W3
11 - 5
TUNE_V1
TUNE_V2
TUNE_V3
ATT
BSHIFT
TUNE_U
CHASSIS
MF1
+
M
-
ANT