Main Unit (2) - Icom IC-M802 Service Manual

11-2-2 MAIN UNIT (2)

MAIN UNIT(2)
BUS LINE1
a
L207 L208
LS-483A LS-540
b
c
TX: 7.2V
R8
R8
d
e
FOR
POCV
POCV
REF
L801
LS-495
Q801
3SK131
0.23V
R1206
470k
MAIN
D1201
R1202 R1203
13 MA2S728
UNIT 470k 470k - 14
12
+
(1)
IC1201
NJM3403AV
Q1204 R1228
2SA1586 1k
ICA
AFG
REF
S13V
-5V
5V
8V
T8
RXS
R1610
22k
IC1603
C1612
M5282FP
4.7
6 5
NC GND
7 4
VCAIN OUT
8 3
CTL IN-
9 2
f VCAOUT IN+
10 1
VCC VCC2
D2201
L2201 C2204 L2210 C2213
MA80WK
2.2 0.001 1.8 0.0012
L2213 18
g C2210 220p
R2201
100
DBPL
C2205 L2211 C2214
0.1 2.2 220p
L2214 3.3
C2211 220p
R2202
100
DBPM
HV13
BUS LINE2
1.39V
L210
LS-483A
R209 C217
22 0.001
Q203
L209
3SK131
LS-540
FI201
FL-345 6.14V
R1219
220k 4.76V
D1204
R1211
D1205 R1212
2 MA2S111
100k
MA2S111 330k - 1
3
+
R1222
D1207
22
IC1201
MA2S111
NJM3403AV
R1232
8.2M
8V R1220 7.2V
2.2M
R1216
0.46V
47k
ICA 6
- 7
5
+
D1202
IC1201
MA2S111
0.24V
NJM3403AV
R1221
7.2V
2.2M
R1213
D1203
100k
REF 9 MA2S111
- 8
10
8V
+
R1214 IC1201
560k NJM3403AV
C1206
Q1205 0.001
2SC4213
C1202
0.1 Q1203
R1223
2SA1586
W1227 2.2k
4
V+
IC1201
C1203
NJM3403AV
GND
0.1
11
S13V
-5V
5V
8V
T8
RXS
C1618 R1612
1 1k
IC1701
TC4W53FU
IC1702
1 8
TS522ID
C1617 R1702 R1705 C1706
10 10k 12k 4.7
2 7 7
R1615
3 6
10k 0V
4 5
DSPO2
D2203 D2202
L2216 C2222 L2225 C2234 L2235
MA80WK MA80WK
2.2 0.0012 1.2 0.1 4.7
L2219 22 C2235
0.1
C2228
C2219 100p 47p
R2207
3.3k
R2204
100
DBPN
L2217 C2223 C2236
2.2 180p W2226 0.1
L2205
1.8
L2221 8.2
C2220 180p
R2203
100
DBPH
11 - 3
D301 L301 L302
MA80WK LS-540 LS-540
L303
LR-317
FI301a FI301b
FL-315 FL-315
L307
LS-540
R8
C403
0.1
MAGC
C402
0.0047
6.13V
L402 L403 L404
LS-542 1.42V LS-450 LS-542
D401
MA77
Q401
3SK131
M3LOK T8
IC501
TA4107F C521
0.1
1 8
L01 L02
2 7
VCC GND
3 6
RF2 IF2
D901
4 5
RF1 IF1 MA80WK
C1051 C1713
10 10
8 8
V+ V+
IC1051 IC1702
C1052 C1714
TS522ID GND TS522ID GND
10 10
IC1703
4 4
TC4W53FU
5
R1715 8.2k
6
R1709 R1713
6
R1717 C1715
- 1k 1k 2
-
5 1 1k 0.1
+ 3 7
+
R1710
IC1702
1k
8
TS522ID
0V
D2204
C2239 L2238 C2245 L2240 C2248 C2252
MA80WK
27p 5.6 27p 5.6 27p W2243 0.1
L2239 L2241 L2245 C2301 L2302
0.68 1.0 100 0.1 LR-409
C2229 C2244 220p C2247 150p
15p
C2206 L2212 C2215 L2218 C2224 C2238
47p 1.8 47p 1.2 68p W2227 0.1
L2215 L2223
0.82 1.2
C2212 150p C2221 68p
1.48V
D302 D303
L304 R307 L305 L306
HSB88WS MA80WK
LR-395 1k 10 12
C309
0.1
L904
1m
L406 R414 D402
1000 1k MA77
L405
LS-542
D404
C407
Q501
0.0047 MA77 1.46V
3SK131
I O
C412
0.0047
FI402
CFWS455HT
IC1001
IC901
TC4W53FU
C906 TA4107F C909
0.1 0.1
1 8 1
L01 L02
2 7
VCC GND
3 6 2
RF2 IF2
4 5
RF1 IF1
3
4
C904
0.1
S13V
-5V
5V
8V
T8
RXS
R1011 1k
C1003
R1006 R1010
0.1 6
7 - 1k 1k W1011
5 1
+
IC1002
R1007 IC1002
4 TS522ID
1k TS522ID
3
2
R1053 R1055
6
-
7 1k 1k 2
5 1 -
+
1 3
IC1051 +
R1054 IC1051
TS522ID
R1723
1k TSS522ID
1k
S13V
1.14V 13.09V
L2306
D2301
Q2301 L2304 LS-543 FI231a
HSB88WS
2SK2171 LR-409 FL-231
Q2302
2SK2171
8V
DAGC
C2409
0.0047
Q2401 Q2501
3SK131 3SK131
1.50V
6.72V 6.70V
HV13
BUS LINE1
MAGC
L401
FI401
LS-542
CFWM455H
I O
RXS
R8
T8
7.46V
MAGC
C508
0.1
C1010 R1008
10 100
8
V+ IC1002
C1011
GND TS522ID
10
4
R1009
MAIN
100
UNIT
T8
(3)
8
R1017
1k
7
6
R1018
5
100
S13V
5V
8V
C1101 R1109
10 100
R1015
2
-
56k 8
3
+
V+ IC1001
C1102
GND NJM4558M
0.1
4
R1110
100
R1059 R1057
1k 1k
R1058
1k
S13V
L2307
LS-409
FI231b C2710 R2709
FL-231 10 100
8V
8
V+
IC2702
C2711
TS522ID
GND
10
4
R2710
100
8V
DAGC
h
MESUREMENT CONDITIONS
frequency: 12.29 MHz
mode: J3E(USB)
*ANT(RX): no input
(TX): no modulation
Digital tester
unit: V
range: 20V
input impedance: 10M
no specification: voltage at RX
HV13
BUS LINE2