Icom IC R8500 Service Manual Addendum page 207

CONV-B UNIT
L60
LW-25
J4
52610-1071
1
C2
R104 R103 C6 2P
3P
C8
0 0
3P
R77
D1
1SS355 100K
C1
C150
470P
R4
47K
MP 1
1768
HK3-S- T
CP2
Q2
10K
X P1213
R54
Q4
D TC144EU
R57
2.2K
Q6
D TC144EU
1 5
Q5
RN2427
2
34
Q14
RN2427
1ATN
1ATF
2ATN
2ATF
10K 10K
R64 R65
J1
C155
GND
1
+24 8 8 1 1
2
7 7 2 2
+8
3
OE 6 6 3 3
4
STBE 5 5 4 4
5
STBB
6 22P
M dat
7
C156
Mck
8
+5 8 8 1 1
9
GND 7 7 2 2
10
3 3
6 6
52610-1071 5 5 4 4
22P
IC1
3P R106 C11
34
C130
0 100P C14 R61 5P C21
2 5
1 6
18 10P 10P
2P 470P
10P
MAALSS0038
6
IC3
1
L5
23 5
UPC2708TB
L6 L11
1U 1U
Q3
RN2427
R53
10K
Q10
DTA114EU
J2
TMP-J01X-V6
L57
0.39U
IC10
1 16
STR V+
2 15
D OE
3 14
CLK Q5
4 13
Q1 Q6
5 12
Q2 Q7
6 11
Q3 Q8
7 10
Q4 Q' S
8 9
GND QS
BU4094BCF
L12
R107
3.9N
0
C27
R108
C24 R12 12 C170 3P
4 RL2
D6
100P 2P
1SS355
MP 2
1768
33N
R67
150
L45 L44
18N 18N
R51
C169
6.8
0.5P
150
L50 L49 L48
47N 8.2N 8.2N
R68
C125
C168
0.5P 0.5P
L25
0.047
C54
1U
IC4
C56 0.047
1
FLO VP
2
CPO VCC2
3
GND PO/LD
4
GND LE
5
FIN DATA
6
FIN CLOCK
D19 7
VCC1 CE
R34
8
OSCI N GND
1SS355 10K C175 C176
22P LMX2316TM
0.001
0.1 0.001
C61
R31
1ATF
1ATN
2ATF
2ATN
C43
0.001
0.001
C131
100P
C40 Q11
C49
100P 1.0U 2SC4835
C41
D9
0.001 D7 0.001 0.001
D8
MA77 MA77
C34 MA77 C44
C38
D16
0.001
D15 0.001 1SV271 D17
C39
1SV271 R16 1SV271
470
0.001 0.001
R18
C36 180 C37
L43 C142
12N
5P
C143
2P
IC9
470P 6.8 R71
VCC IN
D13 6 1
GND GND C144
5 2
OU T GND
4 3
C103
UPC2709TB
470P
1SV237
L47
6.8N
C145
0.001
R73 R74 1K
4.7K
16
15
47P
14 C67
C148
0.1 SVA
13 1 SVA
L29
12
11
8.2N
R100
10
R43 C75
C79 C77 L30
9
10K
0.001 47 10N 470P
0.5P
0.1
C60
1 SVSP
0.1
R40
18
1SV237
C81
470P
D11
10P
C173
23
4.7K
R30
0.001
C132
0.001
0.001
C50
1.0U
L21
MA7 7
D1 0
C53
D1 8 0.001
1SV271
C4 5 56 0.001
R2 6 C46
0.001
J3
TBP-P01X-A1
P1
TMP-K01X-A1
1SV237
470P
C100
D1 2
D2 2
MA728
R3 8
10K
CP1
HK3-S- T Q13
2SC4081
IC7
4 3
OU T GND
5 2
GND GND C7 4
6 1
VCC IN
470P
UPC2708TB
MVE101 7
6 1
OUT VCC
5 2
GND GND
4 3
NC VT
IC6
IC8
1 8
VCC NC C87
2 7
IN OU T
3 6
IN NC 470P
4 5
GND GND
UPB1508GV