Sony HCD-GRX8 Service Manual page 22

– TUNER SECTION – (East European, CIS model)
ST +10V
Q5
FE1
TM1
FM FRONT END
ANTENNA CF1
10.7MHz
FM 75Ω
ANT IN
IF OUT
COAXIAL
AM
MW/LW FRONTEND
6
5
3
2
26 25 24 23
Q14
LW SW
Q12
Q13
MW
MW
SW
SW
10 17 9
09
CF3
IF AMP 10.7MHz
1 FM IN
Q1-4
FM/AM MPX
IC41
FE2
12
28 REG
LW SW
Q9
13
14
15
16
AM MIX 2
AM
17 29 AM OSC
12
SD
ADJ
22 21 20
26 FM AFC
27 AM RF IN
AM
10
SD
Q11 30 14 15 13
450kHz
MW
SW
RV42
FM D41
TUNED
LEVEL
11 14 7 2 12 8
PLL
IC21
– 23 –
23 22 MPX IN
FM DET OUT
SUB CARRIER
PEAK
CT1701 L1701
TP1701
2
3
AM
AM IF 20
4 AM IF DET 24
IFT41
OUT
X41
RV1701
10.7MHz
STEREO 7 SUB CARRIER
FM
9
RV41
DET TUNED 6 LEVEL
AM
TUNED
LEVEL
X42
D42 D43
X21
4.5MHz
1 24
13
3
CE
DI 4
CL 5
DO 6
HCD-GRX8/R800/RX88/RX99
OUT R RCH
20
OUT L
21 LPF
POLAR/PILOT
SWITCH
IC1702
POLAR
DECODER
12
L IN
IC1701
14
L OUT
POLA
7
IN L OUT 13
L IN
POUT 6 R CH
R OUT
R OUT 4 R CH
C A
9 11
SUB IN
18 17
10 9
SWITCH
Q1701
D1701
TP1702
RV1702
D1702
VCO
SWITCH SWITCH
Q1702 Q1703
D1703
D1704
– 24 –
AMP
AMP
19 IN
17
OUT
L
L
• R CH: Same as L ch
• SIGNAL PATH
: FM
: MW
ST-L
STEREO
TUNED
MUTE
A
MAIN
SECTION
ST-CE
(Page 29)
COM-DIN
COM-CLK
COM-DATA