Read Sony HCD-G101 / MHC-G101 Service Manual online
— 15 —
— 16 —
5-2. BLOCK DIAGRAMS
— TUNER SECTION —
HCD-G101
FM
75 OHM
JK101
FM ANTENNA
L101
1
6
3
8
RF IN
IF
FRONT
END
IC101
MIX IN
OSC
T101
TC101,L102
TC101
L102
FM TRACKING
D103
D101
D104
FM OSC
AMP
Q102
L103
FM TUNING
VOLTAGE
TP1
(1/2)
(1/2)
VT
G
AM TUNING
VOLTAGE
FM TUNING
VOLTAGE
TP1 (1/2)
TC102
L104
MW
BAR ANTENNA
L.P.F
Q105,106
21
1
24
X101
7.2MHz
17
Q103
B+
B+
19
L103
FM IF
AMP
Q101
1
FM IF
CF102
10.7MHz
CF101
10.7MHz
AM TUNING
VOLTAGE
L105
L105
23
24
21
22
18
FM
TUNED
LEVEL
SFR101
6 10
7 15 16
12 13
20 11 12 13
14
2 3 4
8
CF104
10.7MHz
17
CF105
19kHz
19kHz
16
18
IF
G
TP1
(2/2)
(2/2)
7
2
T102
4
DI
CLK
CE
TU MUTE
TUNED
DO 1
ST/IN
14
15
AM IF
L OUT
R OUT
TU L
REC OUT
R CH
FM DET
MPX VCO
MPX IN
AF DET
ST IND
AM MIX
PL DET
PH DET
PH DET
SMET
AM/FM
TU LED
OSC
AFC
AM RF
OSC/FMSD
A
MAIN
SECTION
CE
DI
CLK
DO
FM ST
AM/FM
SD SPEED
L CTR
H CTR
SD/IN
AM IN
FM IN
FM B+
X OUT
X IN
PD 1
09
FM/AM MPX
IC102
• R CH is omitted
• Signal path
: FM
: AM
• Signal path
: FM
: AM
5
PLL
IC103
(Page 21)
TC102, L104
AM TRACKING
TUNED
SWITCH
Q107
REC MUTE
Q108,109
CF103
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