Icom IC-A210 Service Manual page 136

(Amended page)
August 2015
SECTION 8 BLOCK DIAGRAM
I F I
8 C
Q 2 1
A M I F I F I F
D E T A M P A M P A M P
Q 2 4 Q 2 5 Q 2 6
D 3 3 D 3 5
A G C 3
F I L 1
D E T
D 2 9
5 C
A N L
I C 3 2
I C 3 7 , I C 3 8
I C 7 0
A M / F M
L P F
A N L S W
A N L S W
8 C 5
A M / F M
I C 1 3 I C 2 2
M I C 1
A L C A F
E - V O L
A M P A M P
M I C 2
I C 2
I 2 D A T
I 2 C L K
8 C 1 0 C
I C 3 D 1 6 , D 1 7
M I 1 L
V O X M I 2 L
A M P D E T
H P
I C
1 0 C Q 5 8 , Q 5 9
Q 6 0 , Q 6 1
R L 1 , Q 9 , D 1 8
S P
M M M U T E
S P O U T
S W
C T R L
Q 1 5
Q 1 6
S P _ C N T L A F
M O D V L P F P O W E R
A M P
D A T A , C L K
I C 8
D S 1 - 1 0 Q 1 , Q 2 , Q 3 I C 1 3 I C 1 1 , I C 1 2 , I C 1 4
L E D D A T A
L E D
D R I V E C L K
D R I V E R
C T R L C T R L
3 . 3 C C L K _ I C 1 2 , D A T A _ I C 1 1 , C D C
I C 9
I C 1 5
L I G H T P H O T O
S E N S O R
S 2
R C L
S 3 C P U
M E M
S 4
D U A L
S 5
I C 1
E C
S 6
S W A P
I 2 C L K
I 2 D A T A
S 1 A , B
2
A
3
B
1
C O M
X 1
5 Q 4
A 1 6 M H Z
6
B
4 C L K
C O M
S H I F T
7 8
2
O E L C O N T R O L
1
R 1
3
4
J 1 J 3
V R V R
5
M O N I M O N I S
6
7 3 . 3 V 3 . 3 C
P O N P O N
V O L U M E - B U N I T
D 1 , D 2
2 n d _ L o
R S S I L 5 C
2 n d I F = 4 5 0 k H z
N O I S E L
F I 5 I C 4 3
I C 4 5
D 5 2
R F C E R A M I C R F
2 n d I F P R O T E
S W B P F S W
I C C T I O N
I C 3 9
F I 6
X 1
C E R A M I C
F M
B P F
D E T
I C 9 0
1 0 C + 8
3 . 3 C R E G
I C 9
I 2 D A T
I 2 C L K
Programmable
OSC
C L K
I C 8 I C 8
I C 2 6 I C 7 I C 1 4
M O D / A F
L P F B P F B U F F
S W
C
8 T 1 8 T 2
I C 6 7
I C 6 8 C
+ 8 S W
R E G I C N T L
I C 7 6
A F
A M P
T 4
I M P I C 4 I C 8 9
H P
C O N V A M P
+ 9 1 0 C
R E G
F I 2
I C 1 6
1 0 C
E M I F I L
T R I A N G L E
4 0 C W A V E
O S C
5 C
I C 1 7 I C 7 1 , I C 8 0
D 2 3 I C 2 5 I C 9 1
F E T P W M I C 9 2
D A C B U F F
D R I V E R M O D
D A T A
C L K
R E G _ C 2 R 8
Q 3
3 . 3 C
X 2
3 8 . 4 0 0 M H z
I C 1 0
T C X O
R S 2 3 2
R X D
D R I V E R T X D
I C 4
V O L T A G E
1 0 C
D E T
I C 3
R E S E T
R E S E T 5 C
R S S I
N O I S E
B P O U T
I N C S
R E M L
M I 1 L
M I 2 L
P T T 1 _ O
5 C
3 . 3 C
V R
C
I C 7 I C 6
D S 1 1
+ 5
+ 3 . 3
R E G R E G
O E L D I S P L A Y I C 5
+ 3 . 3
1 6 V
R E G
F R O N T - B U N I T
26
1 s t I F = 3 8 . 8 5 M H z
8 C
1 s t M I X
D 2 7 F I 3 D 1 9
Q 2 0 I C 6 8
I F R F X T A L R F
A M P S W B P F S W
R 8
D 2 8 F I 4 D 2 0
A G C 2 Q 4 5
R F X T A L R F
L O
S W B P F S W
A M P
A U X 1
E - V O L
5 C
D 3 6
Q 3 5
B U F F
1 1 8 . 0 - 1 3 6 . 9 7 5 M H z ( C h S p a c i n g 2 5 k H z )
T X V C O =
1 1 8 . 0 - 1 3 6 . 9 9 2 M H z ( C h S p a c i n g 8 . 3 3 k H z )
1 5 6 . 8 5 - 1 7 5 . 8 2 5 M H z ( C h S p a c i n g 2 5 k H z )
R X V C O =
1 5 6 . 8 5 - 1 7 5 . 8 4 2 M H z ( C h S p a c i n g 8 . 3 3 k H z )
Q 4 2
8 C R I P P L E
F I L
Q 5
Q 3 3
D 5 4 , D 5 5
T X _ V C O B U F F
Q 2
V C O
S W
L O O P
F I L
V C O 1
Q 6
D 5 6 , D 5 7
R X V C O
Q 3
V C O
S W
3 . 3 C
5 C
U L
Q 0
Q 3 8 V C O 2
Q 6 2
P L L
B U F F L P F
I C
I C 4 7
D A T A
C L K
Q 3 2
2 n d _ L o
D 7 6
8 T 2 8 T 2 8 C
S W
J 1 J 1 3
M I 1 L M I 1 L
S E N D
R E M L R E M L
1 6 V 1 6 C Q 2 9
B P O U T B P O U T R 8 R 8
S W
M I 2 L M I 2 L
I N C S I N C S
R X
P T T 1 _ O
P T T 1 _ O
Q 3 0
R S S I R S S I L
8 T 1 8 T 1
T X D _ O T X D _ O
S W
R X D _ O R X D _ O R E G _ C 2
1 0 C
N O I S E N O I S E L
T X
1 0 C 1 0 C
I C 8 4
A , B , T X D , R X D A , B , T X D , R X D 3 . 3 C + 3 . 3 5 C
D A T A , C L K , P O N D A T A , C L K , P O N R E G
Q 6 4
I 2 D A T A , I 2 C L K I 2 D A T , I 2 C L K
5 C
M A I N - B U N I T
R 8
D 6 2 , D 6 3 , D 6 4 , D 6 5 D 5 8 , D 5 9 , D 6 0 , D 6 1
D 7 0 , D 7 1 , D 7 2 , D 7 3 I C 6 9 D 6 6 , D 6 7 , D 6 8 , D 6 9 D 1 , D 2 , D 3
Band
R F
B P F B P F A T T
Rejection
A M P
Filter
A G C 1
I C 5 4
+ 2 4
R E G
I C 5 2
T U N E 1
A M P
Q 4 8
A M / F M
A M / F M
S W
J 1 J 5 0 0
M O D V M O D
8 T 1
1 0 C
Q 4 1
Q 5 0 0 Q 5 0 1
T X _ O U T J 8 J 5 0 1
T X / R X P R E P R E P R E
D R I V E D R I V E
S W A M P
J 2 J 5 0 2
8 T 1 8 T 1
U L O 8 T 2
1 0 C
I C 5 0 1
1 0 C 1 0 C Q 5 0 2 , Q 5 0 3
P C O N P C O N S E N D
S W
I D _ A D J P R O T E C T
8 T 1
D 7 4 , D 7 5
8 C
I C 8 1 8 C
D 5 3
A G C 1 A , B
Q 5 0
D E T A G C
A G C 2
D E T
B U F F A G C O U T
Q 5 5
A M / F M A M / F M A G C 3
S W
I N C O M _ I I N C S
R E M _ I R E M L
1 0 C
P T T 1 _ I P T T 1 _ O
Q 5 3 , D 8 2
5 C U L U L O
S W
E S D
P R O T E C T
B U F F
D 4 , D 5 , D 6
3 . 3 C 3 . 3 C
T X , R X , R E G _ C 2
V C O 1 , V C O 2 , S E N D
F I L 1 , F I L 2 S P _ C N T L , T U N E 1
A M / F M , M M I C 4 8 I C 7 8 R E F A D J , P C O N
I C N T L , A N L D A T A , C L K
S e r i /
D / A
P a r a
C O N V
D R I V E R
I C 9 4
B U F F
Q 2
D A T A , C L K
I C 7 5 I C 5
D 5 0 D 2 6 Q 1 1
1 6 C + 1 6 4 0 C + 4 0 P O W E R
D C - D C D C - D C S W
Q 6 7
S W
Q 6 6
I C 9 3
3 . 3 C
4 0 C
S u r g e
S t o p p e r
I C 3 1
I C 4 4 I C 4 2 D 3 2
+ 5 8 C + 8 1 0 C + 1 0
R E G R E G D C - D C
P O N
8 C 1 0 C
T X & R X = 1 1 8 . 0 - 1 3 6 . 9 7 5 M H z ( C h S p a c i n g 2 5 k H z )
T X & R X = 1 1 8 . 0 - 1 3 6 . 9 9 2 M H z ( C h S p a c i n g 8 . 3 3 k H z )
P A - B U N I T
J 3
D 5 0 2 , D 5 0 3 , D 5 0 4
J 5 0 4
A N T
L P F
S W
4 0 C
8 T 1
Q 5 0 4 D 5 0 0 , D 5 0 1
P W R P W R
A M P D E T
8 T 2
1 0 C
A N T
I C 5 0 0
D 5 0 7
A P C
A M P
P C O N
J 5 0 3
3 . 3 C J 6
Q 0
I C 4 9
Q 2
L P F
B C D / D e c i Q 3
D E C O D E R
J 8
1
J 9 J 4 1 4
2
R X D _ I
1 5
T X D _ I 3
P T T
1 6
P T T 1 _ I I N C O M
4
M I C 1
1 7
I N C O M _ I
M I C 2
5
M I C 1 A U X I N
1 8
R E M
M I C 2 6
L I G H T
3 . 3 C 1 9
A U X 1 A G C
7
H P
R E M _ I 2 0
S P
8
L I G H T
2 1
A G C O U T 9
R X D 2 2
H P
T X D 1 0
S P 2 3
1 1
D 6 2 4
1 2
D 7 , D 1 0
2 5
1 3
J 1 0 J 3
+ B D C I N
D 5
J 7
R X D
T X D
V D D _ A D J
Q 6 8 , D 7 7
I D _ A D J
S W
D - C O N N E C T / - A U N I T
S E N D
F I 1
+ B
E M I F I L
C O N T R O L L I N E
R X L I N E
T X L I N E
C O M M O N L I N E
D A T A B U S L I N E