Block Diagrams Tuner Section - Sony HD-XB4K Service Manual

HCD-XB4K
QQ
3 7 63 1515 0
6-1. BLOCK DIAGRAMS
– TUNER SECTION –
ST +10V
Q5
TM1
ANTENNA
FM FRONT END
ANT IN
FM 75Ω
AM
TE
L 13942296513
10 15 19
www
http://www.xiaoyu163.com
FE1
CF1
10.7MHz
IF AMP
IF OUT
Q1,2
FE2
AM FRONTEND
7
B+
3 ANT IN
VT
14
PLL
IC1
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y
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http://www.xiaoyu163.com
8
24
AM / FM
CF2
10.7MHz
IF AMP
1 FM IN
Q3,4
FM / AM MPX
4 REG
F OUT 9 29 AM OSC
RF OUT 13 27 AM RF IN
30 14 15 11
Q Q
3 6 7
RV41
FM
TUNED
LEVEL
7 2 12 8
14
u163
– 40 –
2 9 9 4
AMP OUT L
22 MPX IN
OUT L 20 LPF 18 AMP IN L
RCH
OUT R 21
IC2
STEREO
ST LED 8
TUNED
TUNED 7
AM IF
AM MIX 2
5 AM IF
IFT41
AM
12
SD
RV42
AM
TUNED
LEVEL
9
DET
X42
10.7MHz
AM
13
SD
X43
450KHz
23
VCO
X41
456KHz
1 3 1 5 0 5 8 2 9
MUTE
X21
4.5MHz
1 24
ST-CE
CE 3
COM-DIN
DI 4
COM-CLK
CL 5
COM-DATA
6
DO
m
• R CH:Same as L CH
• SIGNAL PATH
co
.
2 8
9 9
16
A
MAIN SECTION
(page 43)
70
69
9 4 2 8 9 9
72
B
MAIN
SECTION
(page 44)
68
67
65
66
:FM
:AM