Icom IC-F29DR Service Manual page 21

SECTION 8. BLOCK DIAGRAM
MAIN UNIT
CHASSIS UNIT
3 . 3 V
Q 4 1 , 4 2
R L E D
L E D
C T R L T L E D
D S 5
Y G
H R
D I S C
5 V
A F O
Q 2 8 , 2 9
D 2 6
D C _ S W
V C O N
E X T V
J 2
M O D
E X T _ M I C
5 V
M C 1
M I C I
I N T _ M I C
Q 2 7
M I C S W A T X
5 V
Q 3 0
P T T D E T
V C C
J 4
P W R
C L
C T R L
E X T _ S P
J 3 I C 6
I N T _ S P
5 V
I C 1
L V I N S W
L V S W
I C 2 IF IC
3 . 3 V
X 1
V C O N
1 5 . 3 MHz
D I S C
S Q I N
Q 4 6
A D S A D S _ S W
A F C U S T O M I C
S Q I N 3 . 3 V 5 V
I C 5
S Q L
B U F F
A F V O L
B E E P
B U F F
R E F
B U F F
B A L
M O D
D M O
L P F
L I N E A R
C O D E C
A L C
M O D
A M P T X / R X
L I N E
S W
C T R L
M I C
L I M I T
A M P H P F
A M P
B U F F
V C O M O 2
2
A M P
X P T T D 3 1 , 3 2
V O X
V O X V
D E T
5 V
Q 3 1 , 3 2
Q 3 5 , 3 6 D 3 5
A F
A F O N
M U T E
5 V
A F I C 8
A M P A F V O
A M P A F O
8-1
Q 8 , D 1 1
S 5 V
R I P P L E
V C O V
F I L
D 8 Q 5 ,
D 6 , 9
F M Q 1 1
M O D
M O D
T X _ V C O
B U F F
A M P
Q 4 , Q 9 5 V
V C O
Q 6 , S W
5 V R X C
D 7 , 1 0
I C 1
R X V C O
L V A L V A _ S W
Q 7
P L S W
V C O
R 5 V
S W
S 5 V
L O O P
F I L
Q 1 3
B U F F
C P
N O I S R S S I B F S R O ,
B C K R O , B D R O
C P U V
I C 1 2
E E P R O M
S 1
C H
C B I 0 - 3
S E L E C T
L I G T 1
R L E D
T L E D
L V A B E E P
T 1
V O X V
T 2 X P T T
C P U
A T X
I C 1 0
A F O N
C P U V
Q 3 9 , D 3 4
C L D O
L E V E L
C L
C O N V
C L D I ,
M D E T
D A S T , R O R E S , D A S O , D A C K
A S C L ,
3 . 3 V
A S D A ,
A I N T
I C 9
M O T I O N C P U V C P U V
S E N S I C 1 1 Q 4 3 , D 3 6
V C O M O 1
D S C K , D S S ,
S H I F T
R E S E T
D S I R Q ,
S W
D M O S I , D M I S O , C S F T
B C L K X 1 , B F S X 1 , B D X 1 , B D R 1
D P D N , D R E S
M C L K
V C O M O 1
3 . 3 V _ V D D 5 V
D S P
Q 4 4
I C 1 4 I C 1 5
S H I F T
B U F F M C L K
S W
X 3
1 2 . 2 8 8 MHz
D C S F T
S 5 V T 5 V R 5 V T 5 V H V H V
D 1 2 , 1 3
Q 1 6 Q 1 8 Q 2 1 Q 2 3
R F T X / R X P R E P W R
D R I V E
D R I V E
S W A M P A M P
4 4 6 . 0 0 6 2 5 0 - 4 4 6 . 1 9 6 8 7 5 MHz
I C 3
L P F
3 9 9 . 6 5 6 2 5 0 - 3 9 9 . 8 4 6 8 7 5 MHz
3 . 3 V 5 V
D V D D C P V D D , P V D D ,
A D V D D , A V D D
D 1 4 , 1 5 , 4 2 , 4 3
Q 4 5
4 6 . 3 5 MHz
B P F
1 s t _ M I X
R 5 V
T 2
F I 1
R 5 V R 5 V
Q 1 ,
X T A L
D 1 , 2 D 3 , 4
B P F
A / D _ S W F I 2 A / D _ S W
X T A L
B P F
V C C
B A T T
B A T V
M O N I
P W O N
5 V
Q 2 , 3
S 5 C
T X C D C _ S W
S 5 V
S 5 V
R X C
B A T V
S 5 C
P O S W H
Q 1 4 , 1 5
A F V I
D C _ S W
S 8 T 5 V
T 5 V
E M E R
S 9
T X C
I P T T
S 6 Q 1 9 , 2 0
S I D E 1
S 7 D C _ S W
R 5 V
R 5 V
S I D E 2
R X C
3 . 3 V C P U V
Q 3 7 , 3 8
T E M P T E M P 3 . 3 V D C _ S W
3 . 3 V _ V D D
X 2
3 . 3 V _ D P W O N
3 . 3 V _ A
I C 1 3
1 . 6 V _ D D C - D C
1 4 . 7 4 5 6 MHz
1 . 6 V
3 . 3 V
B F S R O ,
B C K R O , B D R O
3 . 3 V _ D
D 3 7 , 3 8 , 3 9
D R E S / X F /
C L K O U T , X F ,
C L K O U T
D R E S
3 . 3 V _ V D D
I C 1 6
F L A S H
B D R 0 , B D X 0 ,
F C S , B C L K X 0
4 4 6 . 0 0 6 2 5 0 -
4 4 6 . 1 9 6 8 7 5 MHz
A N T
T 5 V
D 1 8 , 2 3
A N T
L P F
S W
T 5 V
D 2 4 , 2 5
P W R
A P C D E T
A M P
R F P C
R 5 V
D 1 7 , 1 9 , 2 1 , 2 2
Q 2 2
L N A B P F
T 1
H V
Q 3 3 , 2 6 ,
D 2 9
P O S W H
F 1
B A T T E R Y
D C _ S W
2 1
P W O N
I C 4
+ 5
R E G
P W O N P W R S W
3 . 3 V
A F V I
R 1 4 1
A F V O L
I C 7 , D 3 3
D C - D C
3 . 3 V