Sony CFD-CD777SMK2 Service Manual ▷ View 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
<
> : TAPE PLAY (DECK A)
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)
CFD-CD777SMK2
26
26
6-8.
SCHEMATIC DIAGRAM – MAIN Section (2/5) –
•
See page 34 for Waveforms.
•
See page 34 for IC Block Diagrams.
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD PLAY
no mark : CD PLAY
∗
: Impossible to measure
CN701
CNP701
R756
R757
R758
R759
R722
R723
C727
RV701
R727
RV703
R725
M902
M901
S702
RV704
CNP703
CN703
C722
R714
C721
R726
C726
R710
C717
R731
C731
R734
C777
C732
IC701
RV702
R700
R701
C704
C702
C706
R702
C707
C725
R717
D701
C796
R795
R774
R708
R780
R712
C708
R703
R704
R705
C709
C710
C736
C781
C785
R706
C711
R707
C729
C728
R715
D704
C733
C760
R746
C799
R716
R709
C713
C700
C878
C747
C715
C714
Q703
Q701
IC703
C705
C716
C718
C730
R720
C734
C723
C701
16P
VCC
16P
LD
PD
E
D
A
B
C
F
82k
68k
68k
68k
68k
82k
0.01
22k
10k
2.2k
47k
22k
6P
6P
0.022
150k
0.047
10k
1000p
10
47
10V
22k
0.0068
47k
100p
0.01
CXA1782BQ
22k
10k
82k
0.1
0.1
0.033
510k
0.018
10p
10k
IN4148M-TP
0.01
10k
1k
150k
1k
3.3k
10p
100k
150k
47k
3.3
50V
50V
0.068
100
10V
10V
100
10V
10V
0.01
75k
47p
18k
47
10V
0.1
12k
IN4148M-TP
0.01
220
16V
16V
47k
0.01
12k
20k
0.033
0.01
0.01
0.01
0.033
0.01
KRC110M-AT
KTA1266Y-AT
BA6898S
4.7
6.3V
0.01
10
50V
1000
16V
330k
0.0068
0.1
0.0022
A1
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A2
A13
A14
A15
A16
A17
FOCUS/TRACKING
SPINDLE/SLED
VC
VCC
E
D
A
B
C
F
GND
LD
VR
PD
F+
T+
T-
F-
VC
VCC
E
D
A
B
C
F
GND
LD
VR
PD
F+
T+
T-
F-
(SPINDLE)
(SLED)
(LIMIT)
SP+
SP-
SL+
SL-
LIMIT
GND
SP+
SP-
SL+
SL-
LIMIT
GND
CONTROL
SWITCH
LASER ON
POWER
AUTOMATIC
T
R
A
C
K
IN
G
FO
C
U
S
MOTOR DRIVE
COIL DRIVE,
RF AMP,
FOCUS/TRACKING/SLED SERVO
FE BIAS
F
E
EI
GND
LPFI
ATSC
TZC
TDFCT
VC
C
C
2
F
O
K
C
C1
C
B
C
P
R
FI
R
FO
R
F-
LD
P
D
P
D
1
P
D
2
TEO
SL+
SL-
ISET
VCC
CLK
XLT
DATA
XRST
C.OUT
SENS
SLO
FD
FC
T
FG
D
FL
B
FE
O
FE
-
S
R
C
H
TG
U
TG
2
FSE
T
T
E
-
G
N
D
V
C
C
FIN
F
+
F-
V
R
E
F
S
P
I
S
P
O
G
N
D
S
P
+
S
P
-
S
P
IN
G
N
D
N
C
G
N
D
M
U
T
E
C
O
M
5
V
R
E
G
R
S
T
S
LIN
S
L
+
S
L
-
G
N
D
T
+
T
-
TIN
V
R
E
F
V
C
C
(2/5)
TEO
TEI
FE
O
F
EI
(Page 27)
CFD-CD777SMK2
27
27
6-9.
SCHEMATIC DIAGRAM – MAIN Section (3/5) –
•
See page 34 for Waveforms.
•
See page 34 for IC Block Diagram.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD PLAY
no mark : CD PLAY
∗
: Impossible to measure
R791
R790
C755
PGND
C797
R753
R754
R792
C765
R799
C782
L712
L713
C783
C788
L710
L711
L701
C789
Q706
C861
R767
Q705
C830
Q702
R768
R778
R897
R769
C753
C752
X701
R752
L714
C773
C750
R764
R777
R776
C764
R765
C763
IC702
C759
C794
C745
C746
C790
R745
R744
R740
R743
C744
R741
C742
R742
C756
R730
C751
C798
C712
C793
C792
L704
R775
R781
R749
R763
CNP710
C774
IC704
C780
C795
Q704
L720
L709
C743
L702
L703
C786
R766
470
22k
47
10V
DGND
REC
COM 5V
RCH
AGND
LCH
CD7.5V
1000p
1k
1k
10k
1000p
1k
0.01
1K
1K
220
16V
16V
0.01
10K
1K
0.01
KRC110M-AT
0.47
50V
10k
KRC110M-AT
0.01
KRC109M-AT
22k
22k
1k
10k
10p
10p
16.9344MHz
1k
1K
1000p
0.01
1k
10k
1k
4.7
50V
50V
1k
1000p
CXD2507AQ
0.1
100p
0.47
0.01
0.01
10k
100k
3.3k
1M
220p
1k
0.47
10k
0.01
33k
1000p
1000p
0.1
100p
100p
1k
1k
1k
1k
14P
4.7
50V
50V
SM5877AM
1000p
1000p
KRA107M-AT
10K
470p
1000p
1k
A1
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A2
A13
A14
A15
A16
A17
X
I
XI
L
R
C
K
LRCK
P
C
M
D
PCMD
B
C
K
BCK
EMPH
EMPH
CLV SERVO
D/A CONVERTER
MUTING
SWITCH
MUTING
CONTROL
MUTING
SWITCH
CONTROL
MUTING
DIGITAL FILTER,
DIGITAL SIGNAL PROCESSOR,
X
L
A
T
C
L
O
K
S
E
IN
C
N
IN
D
A
T
O
X
L
T
O
V
D
D
C
L
K
O
S
P
O
A
S
P
O
B
S
P
O
C
S
PO
D
L
D
O
N
MNT0
XTAI
XTAO
XTSL
FSTT
C4M
DOUT
EMPH
WFCK
VSS
SCOR
SBSO
EXCK
SQSO
SQCK
MUTE
SENS
XRST
DATA
L
R
C
K
P
C
M
D
B
C
K
G
T
O
P
X
U
G
F
X
P
C
K
V
D
D
G
FS
R
FC
K
C
2
P
O
X
R
O
F
M
N
T
3
M
N
T
1
FOK
MON
MDP
MDS
LOCK
TEST
FILO
FILI
PCO
VSS
AVSS
CLTV
AVDD
RF
BIAS
ASYI
ASYO
ASYE
WDCK
A
G
N
D
R
O
A
V
D
D
T
O
2
X
V
D
D
X
O
X
I
X
G
N
D
H
IS
P
R
S
T
IN
M
O
D
E
A
T
A
C
K
M
U
T
E
E
M
P
H
C
K
O
D
G
N
D
B
C
K
D
A
T
A
D
V
D
D
L
R
C
K
T
ES
T
TO
1
A
V
D
D
LO
(3/5)
5V
GND
SENS
REC
SCOR
SQSO
SQCK
CLK
XLAT
DATA
XRST
MUTE
RST
LDON
2.2µH
2.2µH
4.7µH
(Page 26)
(Page 31)
(Page 28)
(Page 29)
CFD-CD777SMK2
28
28
6-10. SCHEMATIC DIAGRAM – MAIN Section (4/5) –
•
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
〈〈
〉〉
: TAPE REC (DECK B)
<
> : TAPE PLAY (DECK A)
[
] : CD PLAY
C101
R102
C201
R202
R342
R101
R201
C202
C102
C333
C320
R338
C311
C319
C203
C103
C204
C104
C150
C250
C105
C205
R343
C329
C323
C324
C331
R339
R203
R103
C351
R386
R392
C354
Q335
Q330
S305
S305
C321
R341
R371
C322
C339
C326
R372
R205
R204
R105
R104
C108
C208
C109
C209
C110
C210
C327
R369
C107
C206
C207
C106
C335
R340
HP601
CNP302
CNW312
CNP312
CNW303
CNP303
HRP601
HE601
C340
C317
R370
R381
C126
C226
C111
C211
C325
R391
S303
R349
R350
R352
R354
R384
Q308
R356
RV302
Q307
CNP304
S605
S604
S601
S603
M601
R351
C399
R353
R357
R107
R207
C350
T301
IC101
R403
CNP301
REC
L CH
R CH
820p
7.5k
820p
7.5k
1k
1k
1k
560p
560p
0.001
0.0033
22k
0.01
100
10V
10V
0.1
0.1
22
25V
22
25V
1000p
1000p
1000p
1000p
470k
33
16V
1000p
220
10V
10V
220
10V
10V
270
220
220
0.1
47k
47k
0.1
KRC110M
KRC110M
(1/2)
(2/2)
0.01
1k
10k
0.01
220p
0.1
820
100
220
100
220
0.012
0.012
1
50V
1
50V
1
50V
1
50V
0.039
1k
22
25V
560p
22
25V
560p
180p
10k
4P
5P
5P
6P
6P
100p
1
50V
3.3k
220
220p
220p
1
50V
1
50V
10
50V
47k
10k
22k
22k
8.2k
8.2k
KTC3198GR-AT
100k
2.2k
2SK105ATP-40
12P
(DACK A PLAY)
(DACK A FF/REW)
(DACK B PLAY)
(DACK B FF/REW)
(CAPSTAN/RELL)
4.7k
470
16V
16V
10k
6.8k
22k
22k
390p
BA3426AS
47k
5P
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
ST DET
RA 7.5V
L CH
R CH
GND
B-DECK-L
B-DECK-R
FUNCTION
REC-EQ-L
REC-EQ-R
R
EC-NF-L
REC-NF-R
LPF-L
LPF-R
AGC-T
VREF
GND
VCC
BIAS-IN
L
INE-OUT-R
LINE-OUT-L
CD-IN-R
CD-IN-L
RA-IN-R
M
IC-IN
RA-IN-L
MIC-NF
M
IC/HS
TAPE-OUT-R
TAPE-NF-R
A-D
ECK-R
TAPE-OUT-L
TAPE-NF-L
A-DECK-L
A/B NS/HS
SWITCHING
SWITCHING
S304
(REC/PB)
-1
-2
-4
-3
OFF
ON
HIGH SPEED
DUBBING
NORMAL/HIGH
Q307,308
S
A
B
B+
GND
(4/5)
BIAS OSC
REC/PB EQ AMP,
REC BIAS OSC
FUNCTION SWITCH,AGC,
TR-B
TR-C
TV
-IN-L
TV-IN-R
TV-IN-R
TV
-IN-L
SPEED CONTROL
(Page 25)
(Page 27)
(Page 29)
Click on the first or last page to see other CFD-CD777SMK2 service manuals if exist.