Sony CFD-CD777S Service Manual ▷ View online
CFD-CD777S
– 21 –
– 22 –
6-1.
BLOCK DIAGRAM – TUNER Section –
18
20
16
13
19
24
22
FM
FRONT-END
FM IF/
DISCRI
DECORDER
AMP
SWITCH
1/2
COUNTER
1/2
COUNTER
AM IF/
DET
PD1
VCO
PD2
AM
FRONT-END
FINE TUNIG
CONTROL
Q1
MUTING
Q4, 5, 7, 8
FUNCTION
MUTE SWITCH
Q6
BAND
SELECTOR
Q2
14
FM RF
IN
IN
FM/AM
FE OUT
CF1, 2
CF4
T1
AM IF
FM
RF
RF
26
FM
DISCRI
DISCRI
FM
IF IN
IF IN
6
5
L-CH
OUT
R-CH
OUT
R-CH
TUNER L-CH
4
27
29
1
2
3
ST IND
AM
IF IN
IF IN
PILOT DET
LPF2
15
BAND
SELECT
PILOT DET
LPF2
PLL
LPF
PLL
LPF
VCO
RV2
AM OSC
CT4
L4
MW OSC
L3
MW FERRITE-ROD
ANTENNA
ANT1
FM/SW
TELESCOPIC
ANTENNA
L8
SW2 OSC
L6
SW1 OSC
CV4
D4
RV1
FM OSC
AM RF
IN
IN
L2
FM OSC
L1
FM RF
T2
FM DET
FM/AM FRONT-END,
FM/AM DET, MPX
IC1
CV3
CT7
L7
SW2
ANT
CT5
L5
SW1
ANT
CT3
CT1
CT8
CT6
S1 (3/8)
S1 (4/8)
S1 (2/8)
S1 (6/8)
S1 (8/8)
S1 (7/8)
CV1
CT2
CV2
FINE TUNING
S305 (2/2)
ISS, FM MODE
D328
FM STEREO
MW
SW2
SW1
FM
S1
BAND
+
FM VCO
L.P.F.
B.P.F.
FL1
+
D5
AU +7.5V
TUNER B+
TUNER B+
D6
D3
MONO (3)
ST (2)
ST (1)
S1 (1/8)
MW
SW2
SW1
FM
S1
BAND
MW
SW2
SW1
FM
S1
BAND
C
TUNER MUTE
D
(Page 28)
(Page 27)
• SIGNAL PATH
: FM
: MW
05
CFD-CD777S
– 24 –
– 25 –
– 26 –
6-2.
BLOCK DIAGRAM – CD Section –
OPTICAL PICK-UP
(KSS-213C/C2N)
DETECTOR
A
D
B
C
I-V
AMP
A
D
C
35
PD1
36
PD2
F
E
F
E
FOCUS BIAS
37
FE BIAS
RF AMP
RF AMP
RF AMP,
FOCUS/TRACKING/SLED SERVO
IC701
LASER DIODE
LD
38
F
05
39
E
40
EI
PD
AUTOMATIC
POWER CONTROL
Q701
33
LD
LASER ON SWITCH
Q703
LD
AMP
PD
AMP
34
PD
2-AXIS
DEVICE
(FOCUS)
(TRACKING)
TRK+
TRK–
FCS+
FCS–
7
T+
6
T–
28
F+
27
F–
TRACKING
COIL DRIVE
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC703
FOCUS
COIL DRIVE
SLED MOTOR
DRIVE
M
10
SL+
9
SL–
SPINDLE MOTOR
DRIVE
M
24
SPO
M902
(SLED)
M901
(SPINDLE)
SPINDLE
MOTOR
DRIVE
15
12
FOCUS
ERROR
AMP
1
FEO
RV701
E-F BALANCE
RV703
FOCUS GAIN
RV702
TRACKING
GAIN
MUTING
Q705, 706
MUTING
CONTROL SWITCH
Q702, 704
REMOTE CONTROL
RECEIVER
IC852
RV704
2
FEI
FOCUS PHASE
COMPENSATION
6
FEO
TRACKING
ERROR
AMP
E I-V
AMP
AMP
F I-V
AMP
AMP
42
TEO
44
TEI
TRACKING PHASE
COMPENSATION
13
14
TEO
SLED
AMP
16
SLO
SL+
RF
SUMMING
AMP
31
30
RFO
RFI
MIRR
AMP
DEFECT
AMP
FOCUS OK
COMPARATOR
FOCUS OK
AMP
25
FOK
TTL
IIL
I
2
L DATA REGISTER
TTL
IIL
IIL
TTL
21
19
20
22
DATA
CLK
XLT
XRST
56
59
57
DATO
CLKO
XLTO
1
FOK
SENS
C.OUT
24
23
54
55
SEIN
CNIN
50 XRST
7 12 9
8
FILTER
14
RF
ASYMMETRY
CORRECTION
CORRECTION
DIGITAL PLL
EFM
DEMODULATOR
FILO
CLTV
PCO
FILI
CLOCK
GENERATOR
35
34
XTAI
XTAO
EMPH
X701
16.9344MHz
INTERNAL BUS
D/A
INTER-
FACE
INPUT
INTER-
FACE
22
21
20
5
6
8
48
2
NOISE
SHAPER
ATTENUATION
COUNTER
TIMING
CONTROL
CLOCK
GENERATOR
D/A
CONVERTER
PWM
& L.P.F.
FILTER/
ATTENUATION
PROCESS
A
PCMD
BCK
LRCK
DATA
BCK
LRCK
EMPH
LO
RO
R-CH
CD L-CH
1
MUTE
18
XI
19
XO
3
12
CKO
22
RSTN
MUTE
16k
RAM
ERROR
CORRECTOR
SERVO AUTO
SEQUENCER
DIGITAL
CLV
SUB-CODE
PROCESSOR
CPU
INTERFACE
3
2
4
MON
MDP
MDS
46 47 49 51 53 52 43 44
SQSO
SQCK
SENS
DATA
CLOK
XLAT
SCOR
SBSO
SPOA
60
8
5
3 11 9 10 4
27
40
GFS
DIGITAL SIGNAL
PROCESSOR, CLV SERVO
IC702
DIGITAL FILTER,
D/A CONVERTER
IC704
SYSTEM CONTROLLER, LCD DRIVER
IC801
X702
4.19MHz
12
34 LDON
XRST
62
61
EXTAL
60
19
XTAL
COM0 – COM3
SEG0 – SEG13
S801 – S806
MODE
20
DISP
21
K-PLAY
22
K-STOP
23
K-FR
24
K-FF
S702
(LIMIT)
ON: When the optical pick-up is
inner position.
B
5
TIN
29
FIN
11
SLIN
25
SPIN
MUTE
D704
20
22
21
SPIN
SP+
SP–
+
RST
(Page 27)
B
REC
(Page 27)
• SIGNAL PATH
: CD PLAY
SQSO
SQCKO
SENS
DATA
CLOK
XLAT
SCOR
28
C-MUTE
14
REC
RST
DOOR
15
S701
(CD LID OPEN/CLOSE DET)
(ON: When the CD lid is closed.)
PWM
& L.P.F.
14
54 – 51
50 – 37
LCD801
LIQUID CRYSTAL DISPLAY
64
RMC-S
CFD-CD777S
– 27 –
– 28 –
– 29 –
– 30 –
6-3.
BLOCK DIAGRAM – MAIN Section –
+
–
+
–
–
+
–
+
–
–
1
9
10
12
32
2
29
30
3
27
28
14
15
R-CH
S304 (1/4)
REC/PB
S304 (3/4)
REC/PB
REC BIAS OSC
IC301 (2/2)
AU +7.5V
Q330
Q330, 335
SWITCHING
Q335
AU +7.5V
AU +7.5V
REC MUTE
Q305
TR-C
TR-B
SWITCH
CONTROL
R-CH
R-CH
T301
BIAS OSC
DECK B
HE601
(ERASE)
R-CH
L-CH
R-CH
L-CH
DECK A
HRP601
(REC/PB)
HP601
(PB)
A-DECK-L
RA-IN-L
TV-IN-L
CD-IN-L
MIC-IN
7
MIC/HS
B-DECK-L
TAPE
NF-L
TAPE
OUT-L
FUNCTION
A/B
NS/HS
R-CH
J303
R-CH
R-CH
R-CH
IN
OUT
LEVEL METER
LED DRIVE
IC104
D101 – 105
(L-CH LEVEL METER)
D322
D301 – 305
D329 – 332
COM +5V
D329
D337
POWER ON
MUTE DRIVER
Q350
COM +5V
CD +5V
TUNER B+
AU +7.5V
DC +12V
POWER AMP
(IC103) B+
DRY BATTERY
SIZE ‘‘D’’
(IEC DESIGNATION
R20)
8PCS. 12V
D330
D331
D332
D306 – 320
MUTING
SWITCH
SWITCH
Q304
SWITCHING
Q313
LINE
OUT-L
L-IN
L-OUT
R-OUT
+IN
L-CH
L-CH
POWER AMP
IC103
GRAPHIC EQUALIZER AMP
IC102
REC/PB EQ AMP,
FUNCTION SWITCH, AGC
IC101 (1/2)
L-CH
+OUT
L-CH
–OUT
R-CH
+OUT
R-CH
–OUT
–IN
–IN
+IN
R-CH
R-CH
–IN
–IN
SW
VOL
R-IN
LINE1
LINE2
15dB
15dB
29dB
29dB
LINE
OUT-R
17
6
15
8
8
4
10
9
13
REC
PB
S304 (4/4)
REC/PB
S601
(DECK B PLAY)
S605
(DECK A PLAY)
RV303
REC
PB
OFF
ON
REC PB
EQ
AMP
INPUT
SELECT
SWITCH
REC
EQ AMP
N.F.
AGC
Q312
BUFFER
Q302, 303
B+ SWITCH
Q317, 331
DSS
SWITCHING
Q301
NORMAL/HIGH
SPEED SWITCH
Q307, 308
MUTING
Q101, 110,
Q201, 210
MUTING
CONTROL SWITCH
Q314
AGC
CIRCUIT
MIC
AMP
PRE
DRIVER
POWER
AMP
GRAPHIC
EQUALIZER
CONTROL
7
8
10
3
20
22
17
14
PRE
DRIVER
POWER
AMP
PRE
DRIVER
POWER
AMP
PRE
DRIVER
POWER
AMP
+5V
REGULATOR
Q319
+7.5V
REGULATOR
Q309
+7.5V
REGULATOR
Q311
MOTOR B+
CD +7.5V
5
4
LOGIC
CIRCUIT
TUNER L-CH
C
TUNER MUTE
D
(Page 22)
(Page 22)
CD L-CH
A
(Page 26)
REC
05
B
(Page 26)
L
TV/LINE IN
MIC301
MIC
J302
MIX MIC
R
+
S305 (1/2)
ISS, FM MODE
S303
HIGH SPEED
DUBBING
5BAND GRAPHIC
EQUALIZER
1 (ST)
2 (ST)
3 (MONO)
S301 (1/2)
PRESET MODE
S301 (2/2)
PRESET MODE
MANUAL
DISCO
PARTY
LIVE
MANUAL
DISCO
PARTY
LIVE
S302 (2/4)
FUNCTION
BALANCE
LIVE
PARTY
DISCO
MANUAL
RV301
VOLUME
RV302
TAPE SEPPED
(NORMAL)
CD
TV/LINE IN
RADIO
DUBBING
TAPE
(CD/RADIO OFF)
S302 (3/4)
FUNCTION
S302 (1/4)
FUNCTION
D327
OPR/BATT
CD
TV/LINE IN
RADIO
DUBBING
TAPE
(CD/RADIO OFF)
S604
(DECK A FF/REW)
F902
T901
POWER
TRANSFORMER
F901
S603
(DECK B FF/REW)
DECK B
1 – 3, 20 – 22
1 – 4, 6
+
SP901
(WOOFER)
J301
PHONES
J304
SPEAKER
INPEDANCE 4
Ω
L-CH
R-CH
SP902
(TWEETER)
SP904
(TWEETER)
SP903
(WOOFER)
M
A
MOTOR B+
M601
(CAPSTAN/REEL)
B
D340
D350
D323
RECT
D901 – 904
+10V
REGULATOR
Q310
VOLTAGE
SELECTOR
S901
D321
J901
~ AC IN
• SIGNAL PATH
: TUNER
: CD
: TAPE PLAY (DECK A)
: TAPE PLAY (DECK B)
: TAPE REC (DECK B)
: MIC INPUT
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