Icom IC-2800 Service Manual page 43

3 L IC17 TA78L05F
5.16
R26
50k R27 L9
1k 10 H O
I
G
C30
26
39p
60p
R25 C35 + +
C36 C127
27k
0.1 10 0.001
27
.1
C129
C149
R17
0.001 10
68k
L10
1.71 10 H
R20
5
1
R24
68k
4.7k
+
IC23 TA78L05F
3 5.13
—
2
R21
R22
C29 O
22k 47k R23 I
2.2k 0.1
G
F
1.72
+
C155
CP1 C28 C156
10
0.1 0.1
L16 4.88 R292
10 H 3.3
C194
D14 C193
220p
MA8047 M 220p
—14.7
Q11
2SC4081 R
L13
3.26 R108
5.6k + 10 H
C53
C52
10
C54 0.1
R106
4.7
560
R290 5.22
C55
1.5k
10 R164 R265
150
220k
R100 R110
150k
150
R107 R109 R266 R264
2.62
10k 220k 100k
680
1
ENA VDD
2
C146
A1 ENB
3
0.01
YB4 YA1
4
A2 B4
5
IC20
YB3 YA2
6
TC7S08FU
A3 B3
7
YB2 YA3
1 5 8
R270
A4 B2
2 1k 9
YB1 YA4
3 4 10
VSS B1
C145
IC21 TC74AC244F
3p
IC16
M52042FP : Other
M52045FP
: [EUR, ITA] R59
X1
560 : Other
1 24 CR-640 : Other
470 : [EUR], [ITA]
V IN VCC
CR-641: [EUR], [ITA]
2 23
SYNC IN VCXO OUT
3 22
ACC FIL
VCXO MON
4 21
SYNC OUT VCXO IN
5 20
C153
HD COLOR
6 19 18p : Other
PED CAP TINT
7 18 12p :[EUR], [ITA]
C TRAP KILLER FIL
8 17
Y OUT APC FIL R283
9 16
8.2k : Other
CONT S.W.
10 15 3.9k : [EUR], [ITA]
R OUT KILLER OUT
11 14
G OUT PIX CONT C45
12 13 C154
B OUT GND 180p : Other 0.01 : Other
100p : [EUR], [ITA] 0.068 : [EUR],
R167 R169
C44
56k 68k
4.7
C58
0.1
+ C132
R168 C131 R58 C59
C141
R51
0.01
47k 0.01 15k 470p
1
1M
C130 R170
C87
0.01 39k
0.01
R174
+
C102 3.3k
10
PA4
5.2
13.06
12.6
Q19 Q20
L18
DTC144EU 2SA1362 GR SLF6028T-101MR42
L19
678XN-1369
R294
2.7k
R165
8.2k
C122
R295
33P
4.7k
C121
12.39
0.033
IC15
+ TA79L15F
C123
12.6
33
C192
220p
O
—0.36 —0.36
Q14 Q15
G
2SC3647 S 2SC3647 S
+
C125
C124
47
0.001
D0
D1
D2
D3
D4
D5
D6
D7
R180 R181 R182 R183 R184 R185 R186 R187
220k 220k 220k 220k 220k 220k 220k 220k
R188 220k
20
19
R189 220k
18 CS
17
R190 220k
16 WR
15
R191 220k
14 RD
13
R192 220k
12
11 R193 220k
C147
0.01
R194 220k
R195 220k
21
VCC
A0 22
P10/A0
A1 23
P11/A1
A2 24
P12/A2
25
A3
P13/A3
A4 26
P14/A4
A5 27
P15/A5
A6 28
P16/A6
A7 29
P17/A7
30
VSS
A8 31
P20/A8
A9 32
P21/A9
A10 33
P22/A10
A11 34
P23/A11
A12 35
P24/A12
A13 36
P25/A13
A14 37
P26/A14
A15 38
P27/A15
A16 39
P50/A16
A17 40
[ITA]
P51/A17
R196
220k
R197
220k
R198
220k
R199
220k
R200
220k
R201
220k
R202
220k
R203
220k
R204
220k
R205
220k
R262
C105
220k
0.01 JP3
A18
C120
WAIT
0.01
R297
680
12.08
12.46
6.56
Q21
2SB798 DK
R296
R28 12.5
2.2k 1 8
CS CD 1
2 7
ES SI
13.01
3 6
CT V+
4 5
GND INVIN
—16.0 R301
0.6 8.2
IC3 M5291FP
C37
0.001
—15.8
Q16
I R29 C201 R302
—16.9
33k 2.2 8.2 2SA1362 GR
D3
+
SB10-05PCP +
C126
R30 C39
C38 R282
L11
0.001 470k 8.2
47 2.7k
SLF7032T-681MR16-2
R281 4.7k
R263
47k
LRES
80
PA7/TP7/TIOCB2
79
PA6/TP6/TIOCA2
78
PA5/TP5/TIOCB1
77
PA4/TP4/TIOCA1
76
PA3/TP3/TIOCB0
75
PA2/TP2/TIOCA0
74
PA1/TP1/TCLKB
73
PA0/TP0/TCLKA
IC10
72
P83/IRQ3
HD6433032SK21F
71
P82/IRQ2
70
P81/IRQ1
69
P80/IRQ0
68
AVCC
67
VREF
66
P77/AN7
65
P76/AN6
64
P75/AN5
63
P74/AN4
62
P73/AN3
61
P72/AN2
R272
5.22 5.21
10k
R267
R300 R299
220k
1.5k 1k
IC11 S-80945ANMP-DD9
1 5
X2
OUT CD
2
CR-566
VDD
3 4
R179
VSS NC C119
47k
0.01 C143 C144
12p
12p
0.15
W13
5.22
Q18
2SB1132 R
IC14 TA78L05F
R293
4.7
O I
C112
R158 C113 G
0.001 +
10k 0.001 C116
C114 0.001
10
Q12
12.94
2SC4081 R
Q17
R160
DTC144EU
R159 C165
4.7k
12.34
4.7k 220p
P73
P72
PB7
R123
47k
R134
1k
PA2
PA3
C172
220p
R157
R162
100k
4.7k
R161 P74
Q13
15k
2SA1576 R
C98
R298 0.0047
10k
R177 47k
R116
R127 1k PA7
6.8k
R128 470 PA6
R129 10k PA5
R130 1k PA4
R131 1k PA3
P75
R132 1k PA2
R133 1k PA1
R136 1k PA0
C195
220p
C197
R137 1k P80
220p
R135 1k P77
R120
R140 1k P75 6.8k
R141 1k P74
R142 1k P73
R143 1k P72
P80
R176 1k P71
R175 1k P70 R122
47k
R268 47k
P77
R269 47k
P71
P70
R126
47k
PA0
PA1
J4
EXT V
VIDEO
E IN
CFL
J3
DS2 HMBS 3 A1W 83N/AZ Assy
CFL+
1 1
NC
2 2
NC
3 3
4 4
CFL—
C164
C169
5.11
220p
220p
J2
HV
6
TDATA
5
RDATA TO
+
C115
4 MAIN UNIT
GND
10
J3
3
R163
SP
10k 2
SPE
1
SP1
VS-57-0814
J5
C117
47p SP
1 1
SPE
2 2
C160 C166
C118
220p
47p 0.1
C168
C167
220p
220p
UVOL
R146 R145
C97 10k
47k
0.0047
USQL
R149 R148
C175 C96
47k 10k
220p 0.0047
R124
47k S11
S11
EVQ-VENF01
A 1
B 2
NC 3
COM 4
C94 C95 C174
47p 47p 220p
UDIAL
ENCODER
S1
F-1
R113
2.2k
S2
F-2
R114
4.7k
S3
F-3
R115
15k
S4
F-4
S5
F-5
R117
C99
2.2k
0.0047 S6
F-6
R118
4.7k
S7
F-7
R119
15k
S8
R121 F-8
47k
S9
POWER
C173
220p
S10
CHANGE
W8
VVOL
R152
C108
47k R151
0.0047
10k
VSQL
R155
C109 47k R154
0.0047 10k
R125
47k
S12
S12
EVQ-VENF01
1
A
2
B
3
NC
C111 4
C110
COM
47p 47p
VDIAL
ENCODER
COMPLETE VIEW