Read Sony CFD-CD777SMK2 Service Manual online
CFD-CD777SMK2
25
25
6-7.
SCHEMATIC DIAGRAM – MAIN Section (1/5) –
•
See page 34 for IC Block Diagram.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
no mark : FM
(
) : MW
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S1
C8
C22
CNW1
R11
RV1
T1
C24
S1
Q1
R10
C2
D2
D1
D7
D8
RV2
R5
R23
CT2
CV2
CT1
CV1
S1
S1
S1
C12
R22
C20
CV4
C15
C13
C10
C35
FL1
Q6
C37
R26
D6
CF1
CF2
R21
D3
D5
R12
R15
R13
R16
C32
C31
R17
R19
R18
R20
Q4
Q5
Q8
Q7
C21
C25
C19
R8
R7
C16
R24
R4
C30
C28
C27
R3
C6
S1
L3
C5
C1
CV3
S1
S1
R9
L5
L7
C3
CT3
ANT1
C36
C41
CNP1
C9
CT8
L4
L8
L6
CT6
C23
C29
L1
L2
IC1
R14
C38
CT5
CT7
L9
C14
C18
R2
C7
CF4
C34
C26
C33
CT4
L10
Q2
C43
C11
CF3
(7/8)
5p
2.7p
3P
1k
100k
100p
(1/8)
KTC3198GR-AT
100k
220p
IN4148M-TP
IN4148M-TP
IN4148M-TP
IN4148M-TP
10k
220k
100
(3/8)
(4/8)
(2/8)
0.0015
47
15p
0.0047
5p
5p
100p
KTA1266Y-AT
2.2
50V
50V
330
IN4148M-TP
10k
IN4148M-TP
IN4148M-TP
1k
330
220
10k
0.47
50V
0.47
50V
1k
3.3k
1k
3.3k
KRC102M-AT
KRC102M-AT
KRC102M-AT
KRC102M-AT
0.01
100
10V
0.012
6.8k
6.8k
0.012
10k
220k
4.7
50V
1
50V
47
16V
100k
0.47
50V
(8/8)
0.01
0.01
(6/8)
(5/8)
TUNER B+
GND
MUTE
RA 7.5V
L CH
R CH
ST LED
ST DET
82
8.2p
0.01
100p
3P
360p
22p
22p
CXA1538S
2.2k
1
50V
10
50V
2.2
50V
50V
2.2k
4.7
50V
0.01
33
16V
4.7p
KRC102M-AT
100p
1
50V
BAND
GND
(MPX)
PLL LPF
MPX
REG
VCO
FM
DESCRI
MUTE
AM OSC
AFC
FM OSC
REG
OUT
FM RF
IN
AM RF
IN
FM RF
GND
(F.E)
FM/AM
OUT
BAND
SELECT
IN
AM IF
IN
FM IF
TUNEIND
GND
(IF.DET)
AFC AGC
AGC
AFC
RIPPLE
FILTER
B+
L-CH OUT
R-CH OUT
ST IND
DET LPF
PILOT
PLL LPF
FINE TUNING
FM
SW1
SW2
MW
FM
SW1
SW2
MW
FINE TUNING
CONTROL
FM/AM FRONT-END,
FM/AM DET,MPX
FM
SW1
SW2
MW
FM
SW1
SW2
MW
FUNCTION
SWITCH
MUTING
FM
SW1
SW2
MW
MW FERRITE-ROD
ANTENNA
FM
SW1
SW2
MW
FM
SW1
SW2
MW
FM
SW1
SW2
MW
ANTENNA
TELESCOPIC
FM/SW
1
2
3
(1/5)
MW OSC
SW2 OSC
SW1 OSC
FM
ANT
FM
OSC
AM IF
SW1 ANT
SW2 ANT
BAND SELECTOR
0.68µH
2.2µH
(Page 29)
(Page 28)
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