Block Diagram - Yamaha TX-497 Service Manual

A B
TX-497

BLOCK DIAGRAM

1
FM FRONT END
F R A M P
M X I
F M 5 7
Ω
G N D
A M
O C S
U B F F R E
2
3
P L L
I 1 C L : 7 C 1 2 0 3
1
E R R E F N E E C
D D I V I R E
4 2
S A W O L L C W U O T N
2 / 1
5 1
1 / 1 / 1 , 6 4 7 1 s t i b
b 2 1 P s t i O R R G M A
4 1
D D I V I R E
3
4
C B
2
DATA SHIFT REGISTER LATCH
F / I
5
4
6
P W O R E
6 1
N O
E R T E S
3 2
7 8 9 1 1
K Y E B O R A D
S W 5 1 0 ~ 5 9 1
5
18
6
C
P 1 K
2 L 2 Q 5 , 3 L 3 Q 4 , Q 0 1 4 L
R E
V 1 R 2 ,
Q 5 1
AM COIL PACK PK2
F R
A T N
C O L I
O C S
O
C O L I
C -
0 1
9 1
P A H E S T E D T C E R O
H C R A E G U P P M
0 2
8 1
R E N U O L K C
T E D T C E R O 7 1
1 2
5 Q 2 0
A M E L B
R S E T E
2 2
U V I N R E L A S
5 Q 1 0
2 1
C U O T N R E P O W R E
O N
B *
2
3 1
~
C O N R T L O & A D A T B S U
D E
7 L
F M D T E
A M F / M F I C I
C O L I
C I : 2 A L 2 1 6 6
Q 3 1
F M F I A M P
U Q D A A R U T E R
D T E
L V E L E D T E
F I
U B F F R E
F I
U B F F R E
9 L
E C A R M C I
I F T L R E
A M
5 L
D T E
A M P M X I R E
A G C
L D E
C S
S M . T E R E
D R V I R E
O M
C M O S
U T N N I G ~
&1 &2
C O N R T L O
~
&4 &6
L I S
I 5 C 1 0
L 8 C 6 6 2 4 A 0
8 i b C t U P
~
~
5 C 2 0
A B K C P U
5 D 2 0
P V
REMOTE
B *
5 U 1 0 CONTROL
RECEPTER 1 V 2
V 5
F
M X P C I
C I : 3 A L 4 3 1 0
Q 6 1 L 0 1
FM/AM
D C E D O R E
MUTING
P L L
C N O R T L O
T S N I . D
RDS
B, G, E models
IC401
LC72720
, ~
5 V 1 0
POWER SW
SW521
P O W R E
U S P P Y L
POWER SW
SW521
G H
L F P
L 2 1
L h c
M U E T
S W
Q 9 1 0 2 ,
Q 2 2 3 2 , R h c
D E - E P M A H S I S L 3 1
X 3 L
M U E T
J, U, C, T, A, B, G, E models
R, L models