Yamaha HTR-5250 Service Manual Page 35

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RX-V596/HTR-5250/RX-V596RDS
BLOCK DIAGRAM (2/2)
38 39
AM IF COIL
CONTROL
DECODER
S.CURVE
LEVEL DET
FM DET
COIL
Q4
S.METER SD
ANT
COIL
VCO
STOP
OSC
COIL
AGC
PLL
MIX
OSC
MUTE
PROGRAMABLE
DIVIDER
UNIVERSAL
COUNTER
PHASE DETECTOR
CHARGE PUMP
DATA SHIFT
REGISTER LATCH
UNLOCK
DETECTOR
T5
L.P.F.
L
R
L.P.F.
T4
XL2
(456KHz)
FM ANT
GND
TUNER
CONTROL
AM ANT
AM COIL PACK PK2
RF AMP
LOCAL OSC
BUFFER
PK1
VT
OSC
STRQ
AM
OSC
FM OSC
VT
XL1
(7.2MHz)
STSG
MONO D1
D2
METER
VR1
SEPARATION
VR2
Q5
XL3
(4.332MHz)
+5
/FM
/ST
TCE
SDT
SCK
DO
/TMUTE
METER
/ST
IN
MIX
A,B,G,L
models
T3
U,C,R,T
models
J41
AM/FM IF DET.
IC1
LA1266
MPX
IC3
LA3401
FM IF POST AMP
AM IF AM DET
T2
AM RF
IF
/AM
AM IF
FM IF
IF
QUADRATURE
DET
T1
IF AMP
Q1,2
1
CERAMIC
FILTER
Fi 1
CERAMIC
FILTER
Fi 2
Fi 3
REFERENCE
DIVIDER
FM/AM
BAND CHANGE
FM/AM
MUTING
RDS
CONTROL
DEST/RDO
RCK
TUNER
CONTROL
B, G models only
IC4
LC72722
PLL
IC2
LC72131
RDS DECODER
RDS model
TUNER
RCE
5 8
7 1
0
A
H
J
K
M
N
BE
F
H
I
J
1
L
8
A
9
0
3
4
5
6
C
F
8
56
B
E
2
1
G
ST.IND
0 C
E
5
7
K
4
2
5
6
B C
J
K
M
Q3
7
C
RDT
L
• See page 66SCHEMATIC DIAGRAM [TUNER] U,C,R,T,A and L models
• See page 67SCHEMATIC DIAGRAM [TUNER] B and G models (RDS model)
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