Diagrams; Block Diagram - Tuner Section - Sony CFD-CD777SMK2 Service Manual

6-1. BLOCK DIAGRAM – TUNER Section –
ANT1
FM/SW
TELESCOPIC
ANTENNA
S1 (7/8)
B.P.F.
FL1
S1
BAND L3
MW FERRITE-ROD
MW
ANTENNA S1 (8/8)
SW2
CT3
SW1
CT3, L3
MW TRACKING
FM
L5
S1 (6/8)
SW1
CT5, L5
ANT
SW1 TRACKING CT5
L7
SW2
CT7, L7
ANT
S1 (5/8)
SW2 TRACKING CT7
BAND
MW
SW2
SW1
SECTION 6

DIAGRAMS

L1
FM RF
CT1, L1
CV1 CT1
FM TRACKING
20
FM
RF
FM RF
IN FM
18
FRONT-END
AM RF
IN AM
19
FRONT-END
CT4, L4
MW FREQUENCY
TU REG
24
COVERAGE
B+
L4
MW OSC
S1 (2/8)
CT4
CT8, L8
SW2 FREQUENCY
COVERAGE
S1
L8
SW2 OSC BAND
MW
SW2
CV3
CT8
S1
L6
SW1
SW1 OSC
CT6, L6
FM
SW1 FREQUENCY
COVERAGE
CT6
S1 (4/8)
S1 (3/8)
FM
FM/AM
FM
OUT CF1, 2
IF IN
16 13
T1
AM IF
AM
CF4
IF IN
14
AM IF
22
PD1
VCC
REG
TU REG OUT
21 REGURATOR
PD2
B+
L2
CV2 CT2 FM OSC
CT2, L2
15
FM FREQUENCY
COVERAGE
BAND
SELECTOR
Q2
RV1
FINE TUNING
FINE TUNIG
CONTROL
Q1
CV4
19 19
CF3
26
FM
FM/AM FRONT-END,
DISCRI
FM/AM DET, MPX
IC1
FM IF/
DISCRI
L-CH
OUT
+ DECORDER
6
AMP
R-CH
AM IF/
OUT
DET SWITCH 5
MUTING
Q4, 5, 7, 8
1/2
COUNTER
1/2
COUNTER
ST IND
4
VCO
D328
3 2 1 29 27 FM STEREO
RV2
L.P.F.
FM VCO
S305 (2/2)
ISS, FM MODE
MONO (3)
ST (2)
ST (1)
CFD-CD777SMK2
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: FM
: AM
TUNER L-CH
C
(Page 21)
R-CH
TUNER MUTE
D
(Page 22)
S1
BAND
TUNER B+
MW
S1 (1/8) SW2
+
D6
SW1
FM
D3
FUNCTION
MUTING SWITCH
Q6