Sony HCD-GR3 - Tuner Section

— 17 —
— 18 —
6-2. BLOCK DIAGRAMS
— TUNER SECTION — (RX30: AEP, UK, G, EE MODEL)
HCD-GR3/RX30
TM1
AM
ANTENNA
FM 75Ω
COAXIAL
ANT IN
ST +10V
Q5
F OUT
VT
FE1
FM FRONT END
IF OUT
CF1
10.7MHz
IF AMP
Q1, 2
CF2
10.7MHz
IF AMP
Q3, 4
CF3
10.7MHz
1 FM IN
REG
FM/AM MPX
IC41
191510
09
PLL
IC21
11
FM
TUNED
LEVEL
15
11
30 14
RV42
2
1214
7
8
13
X42
450kHz
FM SD
AM/FM
VCO STOP
IF BUFF
MUTE
AM
SD
AM
TUNED
LEVEL
12
RV41
2
AM IF
IFT1
5
9
23
AM IF
DET
VCO
ST LED
TU LED
8
7
X43
456kHz
X41
10.7MHz
MUTE
STEREO
TUNED
24 22
AM/FM
MPX IN
20
21
OUT L
OUT R
LPF
RCH
18
AMP IN L
L16
ST L
4
5
3 ST-CE
COM-DIN
COM-CLK
COM-DATA
A
MAIN
SECTION
CE
DI
CL
DO
1 24
X21
4.5MHz
AM MIX
AM
SD
6
4
5
3
2
G
MODEL
15
17
16
14
12
13
29
26 25 24 23 22 21
20
9
G MODEL
LW SW
Q9
27
FE2
MW/LW FRONTEND
AEP, UK, EE MODEL
Q11
MW
SW
Q12
MW
SW
Q14
LW SW
Q13
MW
SW
AM OSC
AM RF IN
• R CH: Same as L ch
• SIGNAL PATH
: FM
: MW
: LW
• Abbreviation
G: German model.
EE : East European model.
RDS SIG
(Page 23)
AEP, UK, EE MODEL
6
FM
FM OSC
PD1
MW
MW
AM OSC
FM
VCO STOP
FM/AM IF
IF REQ
X IN
X OUT