Sony CFD-ZW700 / CFD-ZW705 / CFD-ZW750 / CFD-ZW770 Service Manual ▷ View online
– 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
US Model
Canadian Model
CFD-ZW750/ZW770
CD RADIO CASSETTE-CORDER
CD player section
System
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wave length: 780 nm
Emission duration: Continuous
Laser output: Less than 44.6
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.)
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
Frequency range
FM: 87.6 - 108 MHz
AM: 530 - 1,710 kHz
AM: 530 - 1,710 kHz
Antennas
FM: Telescopic antenna
AM: Built-in ferrite bar antenna
AM: Built-in ferrite bar antenna
Cassette-corder section
Recording system
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.
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
9-926-914-12
2005I04-1
© 2005.09
© 2005.09
Ver. 1.2 2005.09
Sony Corporation
Personal Audio Group
Published by Sony Engineering Corporation
Published by Sony Engineering Corporation
– 2 –
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
!
OR DOTTED LINE
WITH MARK
!
ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
General
Speaker
CFD-ZW750:
Full range: 10 cm (4 in.) dia.,
3.2 ohms, cone type (2)
CFD-ZW770:
Full range: 10 cm (4 in.) dia.,
6 ohms, cone type (2)
Full range: 10 cm (4 in.) dia.,
3.2 ohms, cone type (2)
CFD-ZW770:
Full range: 10 cm (4 in.) dia.,
6 ohms, cone type (2)
Outputs
Headphones jack (stereo minijack)
For 16 - 68 ohms impedance headphones
For 16 - 68 ohms impedance headphones
Power output (excluding US model)
CFD-ZW750:
2.3 W + 2.3 W (at 3.2 ohm, 10% harmonic
distortion in AC operation)
CFD-ZW770:
3.8 W + 3.8 W (at 6 ohm, 10% harmonic
distortion in AC operation)
2.3 W + 2.3 W (at 3.2 ohm, 10% harmonic
distortion in AC operation)
CFD-ZW770:
3.8 W + 3.8 W (at 6 ohm, 10% harmonic
distortion in AC operation)
Power requirements
For CD radio cassette-corder:
120 V AC, 60 Hz
9 V DC, 6 size D (R20) batteries
For memory back-up:
4.5 V DC, 3 size AA (R6) batteries
For remote controller:
3 V DC, 2 size AA (R6) batteries
120 V AC, 60 Hz
9 V DC, 6 size D (R20) batteries
For memory back-up:
4.5 V DC, 3 size AA (R6) batteries
For remote controller:
3 V DC, 2 size AA (R6) batteries
Power consumption
CFD-ZW750: AC 15 W
CFD-ZW770: AC 28 W
CFD-ZW770: AC 28 W
Battery life
For CD radio cassette-corder:
FM recording
CFD-ZW750
CFD-ZW770
Sony R20P:
approx. 7.5 h
approx. 3.5 h
Sony alkaline LR20: approx. 22 h
approx. 10 h
Tape playback
Sony R20P:
approx. 7 h
approx. 1.5 h
Sony alkaline LR20: approx. 20 h
approx. 5 h
CD playback
Sony R20P:
approx. 3 h
approx. 1.5 h
Sony alkaline LR20: approx. 10 h
approx. 4 h
For memory back-up: approx. 1 year
Dimensions
Approx. 630
×
268
×
256 mm (w/h/d)
(24
7/8
×
10
5/8
×
10
1/8
inches) (incl. projecting parts)
Mass
CFD-ZW750:
Approx. 6.7 kg (14 lb. 12 oz.) (incl. batteries)
CFD-ZW770:
Approx. 7.9 kg (17 lb. 7 oz.) (incl. batteries)
Approx. 6.7 kg (14 lb. 12 oz.) (incl. batteries)
CFD-ZW770:
Approx. 7.9 kg (17 lb. 7 oz.) (incl. batteries)
Supplied accessories
AC power-cord (1)
Remote controller (1) (RMT-CZW750A)
Remote controller (1) (RMT-CZW750A)
Design and specifications are subject to change without
notice.
notice.
CAUTION
Use of controls or adjustments or performance of proce-
dures other than those specified herein may result in haz-
ardous radiation exposure.
dures other than those specified herein may result in haz-
ardous radiation exposure.
Flexible Circuit Board Repairing
•
Keep the temperature of the soldering iron around 270˚C during
repairing.
repairing.
•
Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
circuit board (within 3 times).
•
Be careful not to apply force on the conductor when soldering
or unsoldering.
or unsoldering.
Notes on Chip Component Replacement
•
Never reuse a disconnected chip component.
•
Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
aged by heat.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also use
the procedure in the printed matter which is included in the repair
parts.
The flexible board is easily damaged and should be handled with
care.
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also use
the procedure in the printed matter which is included in the repair
parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE
!
SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
– 3 –
To Exposed Metal
Parts on Set
Parts on Set
0.15
µ
F
1.5k
Ω
AC
voltmeter
(0.75V)
voltmeter
(0.75V)
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage. Check leakage as
described below.
safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage. Check leakage as
described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a VOM
or battery-operated AC voltmeter. The “limit” indication is 0.75
V, so analog meters must have an accurate low-voltage scale. The
Simpson 250 and Sanwa SH-63Trd are examples of a passive
VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are suitable. (See Fig. A)
V, so analog meters must have an accurate low-voltage scale. The
Simpson 250 and Sanwa SH-63Trd are examples of a passive
VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are suitable. (See Fig. A)
CHUCK PLATE JIG ON REPAIRING
On repairing CD section, playing a disc without the CD lid, use
Chuck Plate Jig.
• Code number of Chuck Plate Jig: X-4918-255-1
Chuck Plate Jig.
• Code number of Chuck Plate Jig: X-4918-255-1
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
CHECK
1. Turn on POWER button and press CD button to CD position.
2. Open the CD lid.
3. Turn on S801 as following figure.
4. Press the
2. Open the CD lid.
3. Turn on S801 as following figure.
4. Press the
( P (CD) button.
5. Confirm the laser diode emission while observing the objecting
lens. When there is no emission, Auto Power Control circuit or
Optical Pick-up is broken.
Objective lens moves up and down three times for focus search.
Optical Pick-up is broken.
Objective lens moves up and down three times for focus search.
S801
SERVICING NOTES
– 4 –
TABLE OF CONTENTS
1. GENERAL
Playing a CD ........................................................................... 5
Listening to the radio ............................................................... 5
Playing a tape .......................................................................... 6
Recording on a tape ................................................................. 6
Listening to the radio ............................................................... 5
Playing a tape .......................................................................... 6
Recording on a tape ................................................................. 6
2. DISASSEMBLY
2-1. Cabinet Assy, Rear .............................................................. 7
2-2. Power Board ........................................................................ 7
2-3. CD Block Assy .................................................................... 8
2-4. MD Block Assy, REC Board ............................................... 8
2-5. Main Board ......................................................................... 9
2-6. CD Board ............................................................................ 9
2-7. Optical Pick-up Section .................................................... 10
2-8. Control Board .................................................................... 10
2-9. Key Board, Lamp Board ................................................... 11
2-2. Power Board ........................................................................ 7
2-3. CD Block Assy .................................................................... 8
2-4. MD Block Assy, REC Board ............................................... 8
2-5. Main Board ......................................................................... 9
2-6. CD Board ............................................................................ 9
2-7. Optical Pick-up Section .................................................... 10
2-8. Control Board .................................................................... 10
2-9. Key Board, Lamp Board ................................................... 11
3. MECHANICAL ADJUSTMENTS
............................... 12
4. ELECTRICAL ADJUSTMENTS
Tape Section .......................................................................... 12
Tuner Section ......................................................................... 13
CD Section ............................................................................ 14
Tuner Section ......................................................................... 13
CD Section ............................................................................ 14
5. DIAGRAMS
5-1. IC Pin Description ............................................................. 15
5-2. Circuit Boards Location .................................................... 16
5-3. Block Diagram –CD Section– ........................................... 17
5-4. Block Diagram –Main Section– ........................................ 19
5-5. Printed Wiring Boards –CD Section–
(for CFD-ZW750/ZW770) ............................................... 21
5-6. Schematic Diagram –CD Section–
(for CFD-ZW750/ZW770) ............................................... 23
5-7. Printed Wiring Boards –Control Section–
(for CFD-ZW750/ZW770) ............................................... 25
5-8. Schematic Diagram –Control Section–
(for CFD-ZW750/ZW770) ............................................... 27
5-9. Printed Wiring Board –Main Section–
(for CFD-ZW750) ............................................................ 29
5-10. Schematic Diagram –Main Section (1/2)–
(for CFD-ZW750) ............................................................ 31
5-11. Printed Wiring Boards –Power Supply Section–
(for CFD-ZW750) ............................................................ 35
5-12. Schematic Diagram –Power Supply Section–
(for CFD-ZW750) ............................................................ 37
5-13. Printed Wiring Board –Main Section–
(for CFD-ZW770) ............................................................ 39
5-14. Schematic Diagram –Main Section (1/2)–
(for CFD-ZW770) ............................................................ 41
5-15. Printed Wiring Boards –Power Supply Section–
(for CFD-ZW770) ............................................................ 44
5-16. Schematic Diagram –Power Supply Section–
(for CFD-ZW770) ............................................................ 47
5-17. Schematic Diagram –Main Section (2/2)–
(for CFD-ZW750/ZW770) ............................................... 49
5-2. Circuit Boards Location .................................................... 16
5-3. Block Diagram –CD Section– ........................................... 17
5-4. Block Diagram –Main Section– ........................................ 19
5-5. Printed Wiring Boards –CD Section–
(for CFD-ZW750/ZW770) ............................................... 21
5-6. Schematic Diagram –CD Section–
(for CFD-ZW750/ZW770) ............................................... 23
5-7. Printed Wiring Boards –Control Section–
(for CFD-ZW750/ZW770) ............................................... 25
5-8. Schematic Diagram –Control Section–
(for CFD-ZW750/ZW770) ............................................... 27
5-9. Printed Wiring Board –Main Section–
(for CFD-ZW750) ............................................................ 29
5-10. Schematic Diagram –Main Section (1/2)–
(for CFD-ZW750) ............................................................ 31
5-11. Printed Wiring Boards –Power Supply Section–
(for CFD-ZW750) ............................................................ 35
5-12. Schematic Diagram –Power Supply Section–
(for CFD-ZW750) ............................................................ 37
5-13. Printed Wiring Board –Main Section–
(for CFD-ZW770) ............................................................ 39
5-14. Schematic Diagram –Main Section (1/2)–
(for CFD-ZW770) ............................................................ 41
5-15. Printed Wiring Boards –Power Supply Section–
(for CFD-ZW770) ............................................................ 44
5-16. Schematic Diagram –Power Supply Section–
(for CFD-ZW770) ............................................................ 47
5-17. Schematic Diagram –Main Section (2/2)–
(for CFD-ZW750/ZW770) ............................................... 49
6. EXPLODED VIEWS
6-1. Rear Cabinet Section ......................................................... 55
6-2. Front Cabinet Section ........................................................ 56
6-3. CD Section ........................................................................ 57
6-4. Tape Mechanism Section-1 ............................................... 58
6-5. Tape Mechanism Section-2 (Deck A) ............................... 59
6-6. Tape Mechanism Section-3 (Deck A) ............................... 60
6-7. Tape Mechanism Section-4 (Deck B) ............................... 61
6-8. Tape Mechanism Section-5 (Deck B) ............................... 62
6-9. Optical Pick-up Section .................................................... 63
6-10. Speaker Section ................................................................. 64
6-2. Front Cabinet Section ........................................................ 56
6-3. CD Section ........................................................................ 57
6-4. Tape Mechanism Section-1 ............................................... 58
6-5. Tape Mechanism Section-2 (Deck A) ............................... 59
6-6. Tape Mechanism Section-3 (Deck A) ............................... 60
6-7. Tape Mechanism Section-4 (Deck B) ............................... 61
6-8. Tape Mechanism Section-5 (Deck B) ............................... 62
6-9. Optical Pick-up Section .................................................... 63
6-10. Speaker Section ................................................................. 64
7. ELECTRICAL PARTS LIST
......................................... 65
