Diagrams; Block Diagrams; Tuner Section - Sony HCD-N455KW Service Manual

HCD-N455KW
QQ
3 7 6 3 1 5 1 5 0

6-1. BLOCK DIAGRAMS

—TUNER SECTION—

ST +10V
Q5
TM1
ANT IN
ANTENNA
FM 75Ω
AM
T E
L 1 3 9 4 2 2 9 6 5 1 3
10 15 19
www
09
SECTION 6

DIAGRAMS

FE1
FM FRONT END
CF1
10.7MHz
IF AMP
IF OUT
Q1, 2
FE2
AM FRONT END
7
B+
F OUT
ANT IN
3
RF OUT
VT
14
PLL
IC1
x a o
. i
— 15 —
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CF2
IF AMP 10.7MHz
1 FM IN
Q3, 4
FM/AM MPX
IC2
4 REG
Q Q
3 7 6
9 29 AM OSC
AM IF
AM MIX 2
IFT41
13 27 AM RF IN
AM
12
SD
RV42
AM
TUNED
LEVEL
AM
13
SD
X43
30 14 15 11
450kHz
RV41
FM
TUNED
LEVEL
X21
4.5MHz
14 7 12 8 1 24
2
u 1 6 3
y
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2 4
8 9 9
AM/FM 24 22 MPX IN
20
OUT L
OUT R 21
3 1 5 1 5 0 8 9
5 AM IF
ST L
X42
10.7MHz
ST LED 8 STEREO
9 DET
TU LED 7 TUNED
23 VCO
X41
456kHz
MUTE
CE 3 ST CE
DI 4
COM DIN
CL 5 COM CLK
m
DO 6 COM DATA
c o
.
— 16 —
2
8 9 9
18 AMP IN L L 16
R-CH
2 4 9 8 2 9 9
• R-CH: Same as L-CH
• SIGNAL PATH
: FM
: AM
A
MAIN
SECTION
(Page 21)