Icom ID-800H Service Manual page 55

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
C111 R126
2SC4226
0.01 470
e
MAIN
UNIT
(3)
C597
10p
IC12
µPC2757TB
4
PS
D10 R775
5
HVC136 VCC
47
6
IFO
C135
0.001
D12
DAN222
f
R705
MCR10-JPW
g
Explanatory notes
D18 C167
VOLTAGE LINE
HVC136 0.001
RX LINE
COMMON LINE
BUS LINE2
BUS LINE3
11 - 4
5VS_W
R147 RX: 4.3V
TX: 0V
100
C133 R714
0.001 ERJ3GE-JPW
C176
R723
2p
ERJ3GE-JPW
Q32
RX: 1.1V
3SK299
TX: 0V
R181
220k
R715
MCR10-JPW
FI3
R132 C122
FL-344 5
270 22p
4 1
GND IN
R168 R169
2 3
OUT GND 2.2k 100
6
R149
R724
2.2k
ERJ3GE-JPW
D9 C134 R170
HVC136 0.001
ERJ3GE-JPW
R725
ERJ3GE-JPW
R718
MCR10-JPW
Q35
3SK299
C147
0.001
R719
MCR10-JPW
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
D19
MA2S728
R641
220
R706 R192 C188 C206 C223 R207
22 4p 100p 47
MCR10-JPW 1p
Q37
2SC5006
5VS_W
RX: 4.3V
TX: 0V
R199
10
L32
R744 R745
ERJ3GE-JPW MCR10-JPW C2012C-68NG
Q38
C181 C198 C204 C214
3SK299
1p 1p 2p 0.001
R195
220k
R189
RX: 0.8V
220k
TX: 0V
R201
10
C248
18p
FI4
EFCH445MWNP1[USA]
EFCH435MWNP1[EXP]
2 1
C187 C215
8 7 6 5 4 3 1.5p
2p
Q39
3SK299
R720
ERJ3GE-JPW
C205 C242 C261
1.5p 22p 10p
Q40
R194 D38
2SC5006
100k MA2S077
R197
100k
(630-999.990MHz)
C243 C260 C269 D44 C298 C302 C304
5p 4p 100p 1SV308 1.5p 0.75p 1.5p
Q41
2SC5624
R240
1k
ATT MIN: 10mV
MAX: 3.8V
R729-R743
ERJ3GE-JPW
R729 R731 R733 R735 R737 R739 R741 R743
R730 R732 R734 R736 R738 R740 R742
R721
ERJ3GE-JPW
R722
ERJ3GE-JPW
(118-174MHz)
L40 C280 L53 L57
C2012C-R18G 6p 54n 68n
C247
5p
R239
220k
(230-630MHz)
D42 C281 L54 L59
1SV308 0.001 15n 22n
L41
C2012C-56NG
C: 4.8V
Q44 R259
2SC4081 150
R257 R627
10k 10k
D43
1SV308
Q43
R243
UNR9115J
10k
HV_I
EP1
EP2
Q15
2SC4116
Q17
2SC4116
EP520 ON: 1.0V
FAN_CT
OFF: 13.7V
W2
W3
TUNE_V1
TUNE_V2
TUNE_V3
ATT
BSHIFT
TUNE_U
J1 +
FAN+
FAN- M MF1
-
J2
CHASSIS UNIT