Sony CFD-ZW750 - Cd Radio Cassette-corder User manual

– 1 –
CD Model Name Using Similar Mechanism PMC-D305
Section CD Mechanism Type KSM-213CDM
Optical Pick-up Name KSS-213C
TC Model Name Using Similar Mechanism NEW
Section Tape Transport Mechanism Type MF-ZW750-117
SERVICE MANUAL
CFD-ZW750/ZW770
CD RADIO CASSETTE-CORDER
MICROFILM
CD player section
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wave length: 780 nm
Emission duration: Continuous
Laser output: Less than 44.6 µW
(This output is the value measured at a distance of
about 200 mm from the objective lens surface on
the optical pick-up block with 7 mm aperture.)
Spindle speed
200 r/min (rpm) to 500 r/min (rpm) (CLV)
Number of channels
2
Frequency response
20 - 20,000 Hz +1/–2 dB
Wow and flutter
Below measurable limit
SPECIFICATIONS
– Continued on next page –
Radio section
Frequency range
FM: 87.6 - 108 MHz
AM: 530 - 1,710 kHz
Antennas
FM: Telescopic antenna
AM: Built-in ferrite bar antenna
Cassette-corder section
Recording system
4-track 2 channel stereo
Fast winding time
Approx. 120 s (sec.) with Sony cassette C-60
Frequency response
TYPE I (normal): 80 - 12,500 Hz
AUDIO POWER SPECIFICATIONS (US Model)
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION
CFD-ZW750:
With 3.2-ohm loads, both channels driven
from 150 - 8,000 Hz; rated 2 W per channel-
minimum RMS power, with no more than
10% total harmonic distortion in AC
operation.
CFD-ZW770:
With 6-ohm loads, both channels driven
from 150 - 8,000 Hz; rated 3.6 W per channel-
minimum RMS power, with no more than
10% total harmonic distortion in AC
operation.
Other Specifications
Photo : CFD-ZW770

CFD-ZW750/ZW770
– 17 – – 18 –
5-3. BLOCK DIAGRAM — CD SECTION —
M
38 33 35
18
11
10
12
13
14
79
23
20
21
22
26
25
24
• Signal path
• R-ch : same as L-ch.
: CD
27
PD1
RF AMP
FE AMP
39
36
37
PD2
LD
PD
E
F
VC
42
41
51
17
18 19
23
13
LD ON
SWITCH
Q701
LASER
DIODE
CONTROL
SERIAL/
PARALLEL
CONVERTER
DECODER
RF O
FOK
C. OUT
SENS1
SENS2
IIL
TTL
DATA
XLT
CLK
XRST
TTL
IIL
TRACKING
PHASE
FOCUS
PHASE
COMAND
6 16 7
574
5
617
15
21 8 9 62
65
67
TAO FEO
SLO
RF AMP & SYSTEM SERVO PROCESSOR
IC701
DIGITAL SIGNAL PROCESSOR
IC703
VREF
TRACKING
COIL
DRIVE
26
27 25
7
3
9
FOCUS
COIL
DRIVE
T+
F+
F-
T-
2
1
SLED
MOTOR
DRIVE
12
11
14
SPINDLE
MOTOR
DRIVE
SL+
SP+
SP-
SP0
SL-
TRACKING
COIL
FOCUS
COIL
A
C
B
D
E
F
LD
PD
OPTICAL PICK-UP
BLOCK
(KSS-213C)
TIN
FIN
MUTE
SLIN
SPIN
15
16
SPIN
VREF VREF
VREF VREF
-
+
OPTICAL PICK-UP
DRIVE
IC702
M702
SLED
MOTOR
M
M701
SPINDLE
MOTOR
9
C-RST
6
C-SEN2
5
C-SEN1
8
C-SQSO
7
C-SQCK
1
C-SOR/R-CNT
10
C-CLK
4
C-MUT
11
C-XLAT
12
C-DATA
RF
FOK
CNIN
SEIN
DATO
XLTO
CLKO
XRST
MDP SPOA XLON SENS SQSO SQCK SCOR DATA XLAT CLOK SYSM
XTAI XTAO
SERVO
AUT
SEQ.
EFM DEMODULATOR
SERIAL
INTERFACE
D/A
INTERFACE
SUB CODE
PROCESSOR
CPU INTERFACE
DIGITAL
CLV
S701
(LIMIT)
SYSTEM CONTROL
IC801 (1/2)
70•71
X701
16.9344MHz
DIGITAL
FILTER
&
D/A
CONVERTER
AOUT1
LOUT1
76
74
AOUT2
LOUT2
CD L-CH
R-CH
1
MAIN
SECTION
R-CNT/ST-MO
2
MAIN
SECTION
PWM
AMP
PWM
AMP
CD
04

– 19 – – 20 –
5-4. BLOCK DIAGRAM — MAIN SECTION —
CFD-ZW750/ZW770
M
23
78
6717 18 19 2021 68
2 4
31 32 29 30 66
38–41
76
12 3
CD L-CH
S301-1
REC
PB
R-CH
1
32
19
29
30
10 728
27
14
15
12
20
A-L
B-L
BIAS
BIAS
TR-C
BIAS
TR-B
TU-L
AGC-T
CD-L
REC EQ
BIAS
OSC LOGIC
MIC/HS A/B NOR/HI
FUNCTION
OUT-L
OUT-R
REC/PB
PRE AMP
IC301
RV301
TAPE
SPEED
Q306
M301
(CAPSTAN/REEL)
A
B
–+
ISS1
Q318
ISS3
Q319
Q316
Q307
Q304
T301
BIAS
OSC
Q317
MD
POWER
DETECTOR
Q340
R-CH
R-CH
R-CH
L-CH
HRP301
RECORD/
PLAYBACK
HEAD
(DECK B)
L-CH
R-CH
HP301
PLAYBACK
HEAD
(DECK A)
1
CD SECTION
R-CNT/ST-MO
2
CD SECTION
S304
(MD POWER)
DECK A
S307
(MD POWER)
DECK B
9V
9V
S301-3
REC
PB
REC
79 C-DOR
COM0 ROCK POP JAZZ CLUB MANUAL COM3
42–64
73•74
SEG0 SEG22 R-LATCH R-CLK
LCD801
LED
SWITCH
Q807
5 BAND
GRAPHIC
EQUALIZER
D806-809
TUNER TUNER
POWER AMP
IC304
Q101
Q323(ZW770)
Q332(ZW750)
17
2 1 22 21 20
13
4
GRAPHIC
EQUALIZER
CONTROLLER
VOLUME/SOUND CONTROL
IC302
IC803
5 BAND PROCESSOR
IN2
OUT2
100 400
1K 4K
10K
VOL
SP901
SPEAKER
(L-CH)
R-CH R-CH J301
PHONES
Q301
Q302
Q305
Q303
S306
(MD PLAY)
DECK B
S801
CD DOOR
OPEN/CLOSE
22
S305
(MD PLAY)
DECK A
16
DUB
14
RADIO
3
CD
69
V-DATA/R-DATA
71
V-CLOCK
70
V-LATCH
15
TAPE
TC2 TC1
TUNER
TAPE
CD
X802
32.768KHz
X801
4.19MHz
CLOCK
SHIFT
Q801
CLOCK
SHIFT
Q802
RESET
IC802
B/UP +5V REM +B
RST B-MUTE
2
SIRCS
RECEIVER
IC811
RMC
13
PCON
80
REGCK INT/SFT-CLK XTAL
24
KEY1
25
KEY2
26
KEY3
27
KEY4 EXTL
TXE
TX
BL-CONT
77
A-MUTE
LAMP ON
SWITCH
Q334, 335
CD 5V
SWITCH
Q313, 314
TUNER 6V
SWITCH
Q311, 312
PL801–803
CD 5V
CD
TUNER
6V
TUNER
CE
CK
19
12 13 21 20 8
5
7
1314 17
19
20
2124
22 4 6
16 15
11
12
10
2
LP-OUT
AM-IN FM-IN X-OUT ST-IND X-IN IF-IN MO/ST BAND
X1
75KHz
14 9
18
11
AM
OSC
FM
OSC
AM
MIX
FM
MIX
AM
RF-IN
AM
OSC
MIX
OUT
FM OSC
FM
RF-IN
FM RF- OUT
IF
BUFFER
LPF1/
MO/ST
LPF2/BAND
AM
DET
7FM
DET
AF
BUFFER
FM
MPX MUTE
R-CH
QUAD
R-OUT
MPX-
IN
DET-
OUT
L-OUT
CF2
CF1
CFT1
AM IFT
AM
IF-IN
FM
IF-IN
D1 D2
D10
CT1
L1
FM-RF L2
FM-OSC
CT2
L3
AM
FERRITE-ROD
ANTENNA
FL1
04
BPF
ANT1
FM
TELESCOPIC
ANTENNA
D3
L4
AM-OSC
FM/AM FRONT-END,
IF DET, FM STEREO
DEMODULATOR
IC1
SYSTEM CONTROL
IC801 (2/2)
PLL
IC2
S301-4
HIGH
NORMAL
3
1
OSC-
OUT
• Signal path
: FM
: AM
: PLAY (DECK A)
: PLAY (DECK B)
: REC (DECK B)
: CD
• R-ch : same as L-ch.
1
3
S301
ISS
3 2 1
9V
TUNER
6V
TUNER
6V
TUNER
6V TUNER
6V
TUNER
6V
TUNER
6V
TUNER
6V
TUNER
6V
IF-OUT
ST-IND
BAND
3
DI
DO
Q1
LED
SWITCH
Q808-810
ZW770
DUBBING
SWITCH
Q308-310
1KHz BAND
DETECTOR
Q315
5 BAND GRAPHIC EQUALIZER
RV401-405
MEGA BASS
DETECTOR
Q321, 322
S303
HIGH-SPEED
DUBBING
D906
D907
D908
D321
BACK UP
SWITCH
Q320, 324, 325,
327-329
POWER
SWITCH
Q338, 339
6V REG
(FOR AUDIO)
Q331
6.2V REG
(FOR CD)
Q333
REG. CHECK &
REM+B SWITCH
Q336, 337
J901
~ AC IN
D814
OPR/BATT
D810
MANUAL
T901
POWER
TRANSFORMER
23
IC305
BACK UP 5V IC
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION R6)
3PCS, 4.5V
(BACK UP)
DRY BATTERY SIZE "D"
(IEC DESIGNATION R20)
6PCS, 9V (POWER)
REM+B
B/UP
+5V
9V
VT 9V
CD 6.2V
R367
9V
9V6V
6V
6V REG
(FOR AUDIO)
Q331
7.5V REG
(FOR B/L)
Q332
RECT
D905, 909-911
RECT
D901-904
5V REG
(FOR CD/TUNER)
Q330
TUNER 5V
5V REG
(FOR CD/TUNER)
Q330
TUNER
5V
9V
R901
F901
Q811–813
ZW770
ZW770
6V
S824-827 S816-823 S808-815 S803-807
12
11
10
9
6
4
3
2
5
A06/10KHz
DATA
CLK
LAT
A05/4KHz
A04/1KHz
A03/400Hz
A02/100Hz
A01/VR
EQ10K
EQ4K EQ1K
EQ400 EQ100
6V
6V
ZW770
ZW750
ZW770
ZW770
ZW750
ZW770

5-6. SCHEMATIC DIAGRAM — CD SECTION — (for CFD-ZW750/ZW770) • Refer to page 22 for Note on Schematic Diagram.
• Refer to page 51 for IC Block Diagrams.
– 23 – – 24 –
CFD-ZW750/ZW770
Approx. 100mVp-p
IC701 $¶ (TEI)
•Waveforms (MODE:PLAY)
1
2
3
4
5
2.5V
1.3±0.5Vp-p
Approx. 200mVp-p
IC701 1(FEO)
2.5V
IC703 @¡ (MDP)
2Vp-p
7.6µsec
16.9344MHz
IC703 &¡ (XTAO)
2.2Vp-p
IC701 #£ (RFO)
(Page 33, 43)
(Page 27)

5-8. SCHEMATIC DIAGRAM — CONTROL SECTION — (for CFD-ZW750/ZW770) • Refer to page 25 for Note on Schematic Diagram.
• Refer to page 53 for IC Block Diagrams.
– 27 – – 28 –
CFD-ZW750/ZW770
(Page 50)
(Page 24)
(Page 33, 43)

– 31 – – 32 – – 33 –
CFD-ZW750/ZW770
5-10. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) — (for CFD-ZW750) • Refer to page 53 for IC Block Diagrams.
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
•C: panel designation.
•U: B+ Line.
•H: adjustment for repair.
• Power voltage is dc 9V and fed with regulated dc power
supply from battery terminal.
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
( ) : PB (TAPE)
< > : REC (TAPE)
[ ] : CD STOP
(( )) : DUBBING
<< >> : HIGH-SPEED DUBBING
• Voltagesaretaken with aVOM(Input impedance10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F: FM
E: PB (DECK A)
d: PB (DECK B)
a: REC (DECK B)
J: CD
IC1 H-11
IC2 H-10
IC301 G-6
IC302 D-7
IC304 C-7
IC305 H-4
Q1 F-10
Q101 C-6
Q201 C-6
Q301 F-6
Q302 F-6
Q303 F-6
Q304 F-7
Q305 F-4
Q306 G-4
Q307 G-4
Q308 F-4
Q309 F-4
Q310 F-4
Q311 F-9
Q312 F-9
Q313 E-9
Q314 E-9
Q315 H-7
Q316 F-8
Q317 F-8
Q318 F-8
Q319 F-8
Q320 C-11
Q321 E-7
Q322 E-8
Q324 C-11
Q325 C-11
Q327 D-11
Q328 D-11
Q329 D-11
Q330 D-9
Q331 B-9
Q332 E-8
Q333 B-9
Q336 I-5
Q337 I-5
Q338 D-8
Q339 D-9
Q340 G-4
D1 F-12
D2 F-12
D3 F-11
D4 C-12
D5 B-12
D6 H-12
D8 C-12
D9 C-12
D10 H-12
D301 E-7
D302 H-5
D303 I-5
D304 F-4
D305 F-4
D306 H-9
D307 H-9
D308 H-9
D309 H-8
D310 H-8
D311 E-8
D312 E-8
D313 C-11
D314 C-11
D315 C-10
D316 D-10
D317 D-10
D318 D-11
D319 C-11
D320 C-11
D321 D-10
D322 D-10
D323 D-9
D324 E-10
D325 B-8
D326 B-10
D328 D-10
D330 G-4
D331 B-9
D332 G-5
D333 D-6
D334 H-4
D335 H-5
D336 H-8
D337 I-8
D338 H-8
D339 H-8
D340 H-8
D341 H-5
• Semiconductor Location
Ref.No. Location Ref.No. Location
(Page 50)
(Page 24)
(Page 27)
(Page 37)

– 37 – – 38 –
5-12. SCHEMATIC DIAGRAM — POWER SUPPLY SECTION — (for CFD-ZW750)
CFD-ZW750/ZW770
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ωand 1/4W or less unless otherwise
specified.
•1: fusible resistor.
•C: panel designation.
•U: B+ Line.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
• VoltagesaretakenwithaVOM(Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
Note:
The components identi-
fied by mark !or dotted
linewith mark !are criti-
cal for safety.
Replace only with part
number specified.
Note:
Lescomposants identifiés par
une marque !sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
(Page 33)

– 41 – – 42 – – 43 –
CFD-ZW750/ZW770
5-14. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) — (for CFD-ZW770) • Refer to page 53 for IC Block Diagrams.
IC1 H-11
IC2 H-10
IC301 G-6
IC302 D-7
IC303 B-6
IC304 B-8
IC305 H-4
Q1 F-10
Q101 C-7
Q201 C-6
Q301 F-6
Q302 F-6
Q303 F-6
Q304 F-7
Q305 F-4
Q306 G-4
Q307 G-4
Q308 F-4
Q309 F-4
Q310 F-4
Q311 F-9
Q312 F-9
Q313 E-9
Q314 E-9
Q315 H-7
Q316 H-8
Q317 H-8
Q318 F-8
Q319 F-8
Q320 C-11
Q321 E-7
Q322 E-8
Q323 E-8
Q324 C-11
Q325 C-11
Q327 D-11
Q328 D-11
Q329 D-11
Q330 D-9
Q331 B-9
Q332 H-4
Q333 B-9
Q334 I-4
Q335 I-4
Q336 I-5
Q337 I-5
Q338 D-8
Q339 D-9
Q340 G-4
D1 F-12
D2 F-12
D3 F-11
D4 B-12
D5 B-12
D6 H-12
D8 C-12
D9 C-12
D10 H-12
D301 E-7
D302 H-5
D303 I-5
D304 F-4
D305 F-4
D306 H-9
D307 H-9
D308 H-9
D309 H-8
D310 H-8
D311 E-8
D312 E-8
D313 C-11
D314 C-11
D315 C-10
D316 D-10
D317 D-10
D318 D-10
D319 C-11
D320 C-11
D321 D-10
D322 D-10
D323 D-9
D324 E-10
D325 B-8
D326 B-9
D327 C-11
D328 D-10
D329 H-4
D331 B-9
D333 D-10
D334 H-4
D335 H-5
D336 I-8
D337 I-8
D338 H-8
D339 H-8
D340 H-8
D341 G-4
D342 G-4
D343 G-3
• Semiconductor Location
Ref.No. Location Ref.No. Location
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ωand 1/4W or less unless otherwise
specified.
•C: panel designation.
•U: B+ Line.
•H: adjustment for repair.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
( ) : PB (TAPE)
< > : REC (TAPE)
[ ] : CD STOP
(( )) : DUBBING
<< >> : HIGH-SPEED DUBBING
• Voltagesare takenwith aVOM(Inputimpedance 10MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F: FM
E: PB (DECK A)
d: PB (DECK B)
a: REC (DECK B)
J: CD
(Page 50) (Page 24)
(Page 27)
(Page 47)

– 47 – – 48 –
5-16. SCHEMATIC DIAGRAM — POWER SUPPLY SECTION — (for CFD-ZW770)
CFD-ZW750/ZW770
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ωand 1/4W or less unless otherwise
specified.
•1: fusible resistor.
•C: panel designation.
•U: B+ Line.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
• VoltagesaretakenwithaVOM(Inputimpedance10MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
Note:
The components identi-
fied by mark !or dotted
line with mark !arecriti-
cal for safety.
Replace only with part
number specified.
Note:
Lescomposants identifiés par
une marque !sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
(Page
43)

5-17. SCHEMATIC DIAGRAM — MAIN SECTION (2/2) — (for CFD-ZW750/ZW770) • Refer to page 54 for IC Block Diagrams.
CFD-ZW750/ZW770
– 49 – – 50 –
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ωand 1/4W or less unless otherwise
specified.
•¢: internal component.
•U: B+ Line.
• Power voltage is dc 9 V and fed with regulated dc power
supply from battery terminal.
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
( ) : AM
• VoltagesaretakenwithaVOM(Inputimpedance10MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F: FM
f: AM
(Page 27)
(Page 31, 41)