Icom ic-r20 Service Manual page 40

Aug. 2009
• 1STAVCO BOARD
(TOP VIEW)
L8
R54
C17
D4
L5
C9
D3
D2
D1
• 1STBVCO BOARD
(TOP VIEW)
D5
C26
L8
C17
L5
C9
D3
L1 D2
D1
L10
Q3
C23
C22
R15
C56
R13
B6080D
L7 D8
C13
Q2 C14
R10
R8
R5
Q1
C54
L2
C7
C6
C4
C27
C45
Q5
R16
C57
L13
L14
R17
L10
Q3
R38
C23
R15
R13
C56
L7
D8
Q2
C13
C14
R10
R8
R5
C54
Q1
C7
L2
C6
C4
20
• 2NDCVCO BOARD
(TOP VIEW)
to RF UNIT HJ5
J1
C31 C30 C10
C9
1 5 R4
C6
C32
C5
C4
R2
Q3
C23
C33
R17
to RF UNIT HJ4 C1
R16
J2
1
6
• 2NDDVCO BOARD
(TOP VIEW)
to RF UNIT HJ9
J1
C31 C30 C10
C9
1 5 R4
C6
C32
C5
C4
R2
Q3
C23
R17
to RF UNIT "HJ8" C1
R16
J2
6 1
• DOWNCONV BOARD
R3
D1
(TOP VIEW)
C2
L3
R12 C10
C12
R26
C36
R21
C28
Q4
D5
C31
L9
C2
L2
C4
R5
R4 R1
R3
D1
C2
The combination of this page and next page shows
the top side and bottom side of actual P.C. board.
L4
Q1
D3
L6
C22
C37
R28
C38
R22 D8
C30
D7
C32
R23
L10
C6
IC2
C5 C1 C56