Block Diagrams; Tuner Section (Aep, Uk Model) - Sony STR-W555 Service Manual

5-2. BLOCK DIAGRAMS

– TUNER SECTION – (AEP, UK model)
ST +10V
Q5
FE1
TM1
FM FRONT END
ANTENNA
FM 75Ω
ANT IN IF OUT
COAXIAL
AM
6
5
3
2
Q14
LW SW
Q13
MW
SW
10 17 9
09
CF1
CF2 CF3
10.7MHz
10.7MHz 10.7MHz
IF AMP IF AMP
Q1, 2 Q3, 4
FE2
MW/LW FRONTEND
12
28 REG
LW SW
Q9
13
14
15
16
17 29
AM OSC
26 25 24 23 22 21 20
26
FM AFC
27 AM RF IN
Q11 30 14
Q12
MW
MW
SW
RV42
SW
FM
TUNED
LEVEL
11 14 7
PLL
IC21
– 13 –
1 FM IN 23 22 MPX IN
FM DET OUT
FM/AM MPX
IC1751
IC41
5
AM
AM IF
24
AM MIX 2 4 AM IF DET
IFT41
OUT
X41
AM
10.7MHz
12
SD
STEREO 7
FM
ADJ
9
RV41
DET
TUNED 6
AM
TUNED
LEVEL
AM
10
SD
X42
15 13
450kHz
D41
X21
4.5MHz
2 12 1 24
3
CE
DI 4
CL 5
DO 6
AMP
OUT L 21 LPF 19 AMP IN L
17
OUT
L
OUT R 20 RCH
RDS DECODER
IC1752
4 2
7
16
13 14
X1751
4.332MHz
ST L
• R CH: Same as L ch
RDS INT
RDS DATA
• SIGNAL PATH
STEREO
: FM
TUNED
: MW
A
MUTE
MAIN
SECTION
(Page 17)
ST-CE
COM-DIN
COM-CLK
COM-DATA
– 14 –
STR-W555