Sony CFD-503 / CFD-505 Service Manual ▷ View online
MICROFILM
CFD-503/505
CD RADIO CASSETTE-CORDER
US Model
Canadian Model
CFD-503/505
AEP Model
Australian Model
CFD-505
SERVICE MANUAL
Model Name Using
CD Section
CFD-550
Similar Mechanism
Tape Section
CFS-208
CD Mechanism Type
KSM-213BAN
Optical Pick-Up Type
KSS-213B
Tape Transport Mechanism Type
MF-311
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 sur-
face on the optical pick-up block with 7 mm
aperture.)
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 sur-
face 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
Radio section
Frequency range
FM: 87.6-108 MHz (US, Canadian, Australian)
87.6-107 MHz (AEP)
65-108 MHz (East European)
65-108 MHz (East European)
AM: 530-1,710 kHz (US, Canadian)
531-1,602 kHz (AEP, East European)
530-1,605 kHz (Australian)
530-1,605 kHz (Australian)
Aerials
FM: Telescopic aerial
AM: Built-in ferrite bar aerial
AM: Built-in ferrite bar aerial
Cassette-corder section
Recording system
4-track 2 channel stereo
Fast winding time
Approx. 115 s (sec.) with Sony cassette C-60
Frequency response
TYPE I (normal): 70-10,000 Hz
General
Speaker
Full range: 10 cm dia., 3.2 ohms, cone type (2)
Tweeter: 2 cm (2)
Tweeter: 2 cm (2)
Outputs
Headphones jack (stereo minijack)
For 16-68 ohms impedance headphones
For 16-68 ohms impedance headphones
Maximum power output
2.3 W + 2.3 W
Power requirements
120 V AC, 60 Hz (US, Canadian)
220-230 V AC, 50 Hz (AEP, East European)
230-240 V AC, 50 Hz (Australian)
9 V DC, 6 R20 (size D) batteries
220-230 V AC, 50 Hz (AEP, East European)
230-240 V AC, 50 Hz (Australian)
9 V DC, 6 R20 (size D) batteries
Power consumption
AC 20 W
Battery life
FM recording
Sony R20P: approx. 13.5 h
Sony alkaline LR20: approx. 19 h
Tape playback
Sony R20P: approx. 7.5 h
Sony alkaline LR20: approx. 12 h
CD playback
Sony R20P: approx. 2.5 h
Sony alkaline LR20: approx. 4.5 h
Dimensions
Approx. 520
×
253
×
256 mm (w/h/d)
(20
1
/
2
×
10
×
10
1
/
8
inches) (incl. projecting parts)
Mass
Approx. 5.8 kg (12 lb. 13 oz) (incl. batteries)
Supplied accessory
AC power cord (1)
Design and specifications are subject to change
without notice.
without notice.
SPECIFICATIONS
Photo: CFD-503
– 2 –
TABLE OF CONTENTS
1.
SERVICING NOTE
..................................................
3
2.
GENERAL
...................................................................
4
3.
DISASSEMBLY
......................................................... 13
4.
ADJUSTMENTS
4-1.
Mechanical Adjustments ................................................ 18
4-2.
Electrical Adjustments .................................................... 18
5.
DIAGRAMS
5-1.
Printed Wiring Boards (CD Section) .............................. 27
5-2.
Schematic Diagram (CD Section) .................................. 29
5-3.
Schematic Diagram (Audio Section) ............................. 34
5-4.
Printed Wiring Boards (Audio Section) ......................... 37
5-5.
IC Pin Function Description ........................................... 40
6.
EXPLODED VIEWS
................................................ 42
7.
ELECTRICAL PARTS LIST
............................... 50
SAFETY CHECK-OUT
After correcting the original service problem, perform the follow-
ing safety checks 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.
ing safety checks 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 microampers.). Leak-
age current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microampers.). Leak-
age 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 pas-
sive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2 V 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 pas-
sive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2 V AC range are suitable. (See Fig. A)
1.5 k
Ω
0.15
µ
F
AC
Voltmeter
(0.75 V)
Voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
CAUTION
Use of controls or adjustments or performance of pro-
cedures other than those specified herein may result in
hazardous radiation exposure.
cedures other than those specified herein may result in
hazardous radiation exposure.
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 PUB-
LISHED BY SONY.
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
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 COM-
POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
This Compact Disc player is classified as a
CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT label is
located on the rear exterior.
CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT label is
located on the rear exterior.
Fig. A.
Using an AC voltmeter to check AC leakage.
– 3 –
SECTION 1
SERVICING NOTE
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
CHECK
1. Turn POWER switch on with no disc inserted and make Func-
tion switch to CD position.
2. Open the lid for CD.
3. Turn on S807 as following figure.
4. Press
3. Turn on S807 as following figure.
4. Press
· key.
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 the focus
search.
Optical Pick-up is broken.
Objective lens moves up and down three times for the focus
search.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
BLOCK 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, ob-
serve 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, ob-
serve from more than 30 cm away from the objective lens.
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
S807
– 4 –
SECTION 2
GENERAL
This section is e
xtr
acted from
acted from
instruction man
ual.