Tuner Section (Aep, Uk Model); Main Section - Sony STR-W777 Service Manual

5-2. BLOCK DIAGRAM – TUNER SECTION – (AEP, UK model)
ST +10V
Q5
TM1
FM FRONT END
ANTENNA
FM 75Ω
ANT IN
COAXIAL
AM
10 17 9
16
FE1
CF1
CF2
10.7MHz
IF AMP 10.7MHz
IF OUT
Q1, 2
FE2
MW/LW FRONTEND
6 12
5 13
14
3
15
16
2
17
26 25 24 23 22 21 20
Q14
LW SW
Q12
Q13
MW
MW
SW
SW
PLL
IC21
— 13 —
CF3
IF AMP 10.7MHz
1 FM IN
Q3, 4
FM/AM MPX
IC41
28 REG
LW SW
Q9
AM IF
AM MIX 2
IFT41
AM
29 AM OSC
12
SD
ADJ
RV41
26
FM AFC
AM
TUNED
27 AM RF IN
LEVEL
AM
10
SD
X42
Q11 30 14 15 13
450kHz
MW
SW
RV42
FM
TUNED D41
LEVEL
11 14 7 2 12 1 24
23 22 MPX IN
FM DET OUT
IC1751
5
AM
ST L
4 AM IF DET 24
OUT
RDS INT
X41
RDS DATA
10.7MHz
STEREO 7 STEREO
FM
9
DET
TUNED 6 TUNED
MUTE
X21
4.5MHz
3 ST-CE
CE
DI 4
COM-DIN
CL 5 COM-CLK
DO 6 COM-DATA
— 14 —
STR-W777
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
• R CH: Same as L ch
• SIGNAL PATH
: FM
: MW
A
MAIN
SECTION
(Page 17)