Block Diagram - Tuner Section (East European, Cis Models Only) - Sony HCD-GRX9000 Service Manual

7-1. BLOCK DIAGRAM – TUNER Section (East European, CIS models only) –
ST +10V
Q5
B+ SWITCH
FM CIRCUIT B+
TM1
5
ANTENNA
+B
FM 75Ω
8 ANT IN IF OUT 1
COAXIAL FE1
FM FRONT-END
4
AM
6
5
3
2
26 25 24 23
Q14
Q13 LW SWITCH
MW
SWITCH
10 17 9
05
CF1 CF3
10.7MHz 10.7MHz
FM IF AMP
1 FM-IN
Q1 – 4
FE2
MW/LW FRONT-END
REG
12 28
13
Q9
LW SWITCH
14
15
16
AM-MIX
17 29 AM-OSC
22 21 20
27 AM-RF IN
Q12 Q11
30 14 15 13
MW MW
SWITCH SWITCH
RV42
FM TUNED
LEVEL
11 14 7 2 12 8
FM/AM PLL
IC21
– 21 –
MPX
OUT L
FM DET-OUT 23 22
IN
OUT R
FM/AM IF AMP, CT1701, L1701, TP1701
AM RF AMP/MIX/OSC,
SUB CARRIER
FM/AM DET, MPX
PEAK
IC41
TP1701
AM
AM IF AM
2 4 DET 24
RV1701
IFT41 IF
OUT
SUB CARRIER
LEVEL
AM-SD
12
ADJ
RV41
STEREO
AM TUNED
STEREO 7
LEVEL
TUNED
TUNED 6
AM
10 9 FM DET
SD
X42 X41
450kHz 10.7MHz
D41
MUTE
D42 D43
X21
4.5MHz
1
24 13
ST-CE
CE 3
ST-DOUT
4
DI
ST-CLK
CL
5
ST-DIN
DO
6
• SIGNAL PATH
: FM
: AM (MW/LW)
LPF41 AMP AMP
21 19 17
L.P.F. IN L OUT L
20
POLAR /PILOT SWITCH
IC1702
POLAR DECODER
IC1701
12
14
2 IN L OUT 7 13
5
4 R-CH
6 3
R OUT
3 SUB IN
C A
9 11
20 SUB IN
SWITCHING
VCO STOP 9
Q1701
ST IND 10
18 17
D1701 D1702
RV1702
SWITCHING SWITCHING
TP1702
Q1702 Q1703
TP1702, RV1702 D1703
VCO
D1704
STEREO, TUNED, ST-MUTE,
ST-CE, ST-DOUT, ST-CLK, ST-DIN
– 22 –
HCD-GRX9000/RX900
ST-L
A
(Page 27)
B
(Page 27)