Icom IC R8500 Service Manual Addendum page 100

Sep. 2010
SECTION 9 BOARD LAYOUTS
• RF-C UNIT (TOP VIEW)
L55
L54
Q10
C147
Q11
R68
CP1
D15
C131 C97
C87
L83 L75
L58 C89
C123 C130
R64
R77 C98 C99
R77
L82 R60
L59
D4
Q7
C106
D11 C39
R97
Q6
L62
L60
MP1
L63
C51
FI1
C126
MP1 L34
L65
C59
R83
C67
Q8
L39
C113
R94
C117 L44
L72
C114 R86
R92
C75
C142
L70
R90
L66 L49
R91 R89
• CONV-B UNIT (TOP VIEW)
C109
MP5
C47
R25
GND
C48
R24
+5
R26
C46
Mck
Mdat
D18 C45 D17
STBB
STBE D10
D9
OE Q12
C51
+8
C108
+24 C52
GND
R30
R47
R71 C144
C93
IC9
C94 C100
IC8
L40
L32
R45
C102
L42 L41
L31 C173 C80
R46 C81
C84
C82 C63 R58 C103
C83
L25
C142
C176 D13
C175
C79 R43
C61
C54 C122 C115
C60
R67
C78
C121
C120
IC4
C55
L24
L46
C76
C165 L50
C174
L30
C166 C163 R100 C75 R42 R52
D14
R34
R51 C129
L52
R41
R40
C113
C114
C146
C66
C67
R37
IC6
J2 C148
L59
CP1
R38
D22
MP5
IC10
R54
R55
C111
CP2 R55
CP2
C16
D5 Q15
L8 L7
Q16
C24
C23
L11 L10 R19
C25
R63
R62
CP1
Q3
R67
L53
R61 C32
L1
C37
L19
D7
L17
C6
C8
L3
L24 L23
C7
C49
L27 R5
L25
C53
L30
L32
L38 L36
R1
L35
C65 C63
C61
B6559A
C69
L40
L42
L47
L45
B6561A
L17
MP5
L21
R23
L20 C38 R15
R17
C39
C44 R16
R18 L16
C37
D16 C36 D15 C34
R108 R107
D8 D7
C42
C43
MP2
RL2
R31
C29
L12
R79
R1
R76
C24 R12 C170
L11
C18
D1 C136
C1
C6 R104 C2
C11
R103
R77
C152
L4
C139 C137 C14
D5
R61
C16
R4
C9
C17
R2
C154
MP6
21
• MIX-A UNIT (TOP VIEW)
J2
MP3
R14
C28
IC2
D5
C29 R10
C60
D2 R8
L3
C34
C53
C35
C23
L12
L19
C37
C54
C47
C48
L16
C50 L18
C52
C33
L11
C55
Q1
EP68
EP67
C66
EP66
J4
C65
EP65
EP64 C64
EP63
C63
EP62
C62 Q3
EP61
IC3
Q2
C2
C3
R1
L2
R17
B6558B
H135 H130 H125 H120 H115 H110 H105 H100 H95 H90 H85 H80
L7
D4
C7
C16
R20
C11
C12
C13
R5
D3
J3
L6
L1
MP5
D1
t=1.6,(2)
• RF-D UNIT
H75 H70 H65 H60 H55 H50 H45 H40 H35 H30 H25 H20
The combination of top side and bottom side of this
(TOP VIEW)
H15 H10 H5 H0