CD RADIO CASSETTE-CORDER
Personal Audio Group
Published by Sony Engineering Corporation
Ver. 1.5 2005.09
Model Name Using
CD Mechanism Type
Optical Pick-up Type
Tape Transport Mechanism Type
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL
With 3.2-ohm loads, both channels driven
from 1 000 - 10 000 Hz; rated 3 W per
channel-minimum RMS power, with no
more than 10 % total harmonic distortion
in AC operation.
Woofer with 4-ohm loads, driven at
50 - 150 Hz; rated 6 W minimum RMS
power, with no more 10 % total harmonic
distortion in AC operation.
CD player section
Compact disc digital audio system
Laser diode properties
Wave length: 780 nm
Emission duration: Continuous
Laser output: Less than 44.6
(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
200 r/min (rpm) to 500 r/min (rpm)
Number of channels
20 - 20 000 Hz +1/2 dB
Wow and flutter
Below measurable limit
FM: Telescopic antenna
AM: Built-in ferrite bar antenna
FM : 10.7 MHz
AM: 450 kHz
4-track 2 channel stereo
Fast winding time
Approx. 115 s (sec.) with Sony cassette C-60
TYPE I (normal): 70 - 13 000 Hz
Full range: 10 cm (4 in.) dia., 3.2
, cone type
Woofer: 8 cm (3 1/4 in.) dia., 4
, cone type (1)
Headphones jack (stereo minijack)
For 16 - 68
4 W + 4 W (at 3.2
, 10% harmonic distortion
in DC operation)
12 W (at 4
, 10 % harmonic distortion in DC
For CD radio cassette-corder:
120V AC, 60 Hz (Other models)
110-127V, 220-240V AC
Selectable, 60Hz (EA model)
230V AC, 50Hz (MY, SP models)
12 V DC, 8 size D (R20) batteries
For remote control:
3 V DC, 2 size AA (R6) batteries
AC 30 W
For CD radio cassette-corder:
Sony R20P: approx. 6 h
Sony alkaline LR20: approx. 18 h
Sony R20P: approx. 1.5 h
Sony alkaline LR20: approx. 6 h
Sony R20P: approx. 1 h
Sony alkaline LR20: approx. 4 h
× 195 × 330 mm (w/h/d)
× 7 3/4 × 13 inches) (incl. projecting parts)
Approx. 6.8 kg (14 lb. 16 oz) (incl. batteries)
AC power cord (1)
Remote control (1)
Design and specifications are subject to change
FM : 87.5 - 108 MHz
EA : Saudi Arabia model.
MY : Malaysia model.
: Singapore model.
AM: 530 - 1 710 kHz (Other models)
: 531 - 1 611 kHz (9 kHz Step)
530 - 1 610 kHz (10 kHz Step)
(MY, SP, EA models)
Notes on chip component replacement
·Never reuse a disconnected chip component.
· Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
·Keep the temperature of soldering iron around 270°C
· Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
· Be careful not to apply force on the conductor when soldering
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH
MARK 0 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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
TABLE OF CONTENTS
1. SERVICING NOTES ······················································ 3
2. GENERAL ·········································································· 4
3. DISASSEMBLY ································································ 5
3-1. Cabinet (Front) Assy- 1 ················································· 5
3-2. Cabinet (Front) Assy- 2 ················································· 6
3-3. CONTROL (POWER), CONTROL (CD),
HEADPHONE Board ··················································· 6
3-4. Panel Assy ····································································· 7
3-5. LCD Board, Panel (Upper) ··········································· 7
3-6. Panel (Upper) Assy- 1 ··················································· 8
3-7. Panel (Upper) Assy- 2 ··················································· 8
3-8. POWER, TRANS, VOL SEL Board ····························· 9
3-9. TUNER Board, Duct (Upper, Lower) ··························· 9
3-10. BATT COM, BATT Board ·········································· 10
3-11. MAIN Board- 1 ··························································· 10
3-12. MAIN Board- 2 ··························································· 11
3-13. Mechanism Deck Section (MF-V5-117) ···················· 11
3-14. CD Block Section (KSM-213RDP) ···························· 12
3-15. PDW, L-R/REG Board ················································ 12
4. ADJUSTMENTS ···························································· 13
4-1. Mechanical Adjustments ············································· 13
4-2. Electrical Adjustments ················································ 13
5. DIAGRAMS ······································································ 17
5-1. Circuit Boards Location ·············································· 17
5-2. Block Diagrams ·························································· 18
MAIN Section ····························································· 18
TUNER/CD Section ··················································· 19
5-3. Printed Wiring Board TUNER Section ················ 20
5-4. Schematic Diagram TUNER Section ··················· 21
5-5. Printed Wiring Board CD Section ························ 22
5-6. Schematic Diagram CD Section ··························· 23
5-7. Printed Wiring Board TC Section ························· 24
5-8. Schematic Diagram TC Section ···························· 24
5-9. Printed Wiring Board MAIN Section ··················· 25
5-10. Schematic Diagram MAIN Section (1/2) ············· 26
5-11. Schematic Diagram MAIN Section (2/2) ············· 27
5-12. Printed Wiring Board AMP Section ······················ 28
5-13. Schematic Diagram AMP Section ························ 29
5-14. Printed Wiring Board CONTROL Section ··········· 30
5-15. Schematic Diagram CONTROL Section ·············· 31
5-16. Printed Wiring Board POWER Section ················ 32
5-17. Schematic Diagram POWER Section ··················· 33
5-18. IC Pin Function Description ······································· 36
6. EXPLODED VIEWS ······················································ 38
6-1. Cabinet (Front) Section ··············································· 38
6-2. Cabinet (Rear) Section ················································ 39
6-3. Cabinet (Upper) Section ············································· 40
6-4. Mechanism Deck Section- 1 (MF-V5-117) ················ 41
6-5. Mechanism Deck Section- 2 (MF-V5-117) ················ 42
6-6. CD Mechanism Section (KSM-213RDP) ··················· 43
7. ELECTRICAL PARTS LIST ······································· 44
Ver 1.1 2002.05
After correcting the original service problem, perform the
following 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
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.
A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers' instructions to use these
A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
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
To Exposed Metal
Parts on Set
Fig. A. Using an AC voltmeter to check AC leakage.
NOTES ON HANDLING THE OPTICAL PICK-UP
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
The flexible board is easily damaged and should be handled with
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 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
LASER DIODE AND FOCUS SEARCH OPERATION
Press CD open knob.
Open the lid for CD.
Push on SWITCH (S801) as following figure.
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 once for the focus search.
Insert a precision
screw driver and push
This section is extracted
from instruction manual.
Location of controls
VOLUME , +*
TUNE , +
Loading a CD
With the labeled side up
Inserting a cassette
With the side you want to
play facing upward
Total track number
Total playing time
*The button has a tactile dot.
PRESET , +
This player can play CD-Rs/CD-RWs
recorded in the CD-DA format*, but
playback capability may vary depending on
the quality of the disc and the condition of
the recording device.
* CD-DA is the abbreviation for Compact
Disc Digital Audio. It is a recording
standard used for Audio CDs.
· The equipment can be removed using the following procedure.
3-1. Cabinet (Front) Assy- 1
Note : Follow the disassembly procedure in the numerical order given.
CABINET (FRONT) ASSY-1
CABINET (FRONT) ASSY-2
LCD BOARD, PANEL (UPPER)
CONTROL (POWER), CONTROL (CD), HEADPHONE BOARD
PANEL (UPPER) ASSY-1
PANEL (UPPER) ASSY-2
POWER, TRANS, VOL SEL BOARD
TUNER BOARD, DUCT (UPPER, LOWER)
BATT COM, BATT BOARD
PDW, L-R/REG BOARD
MECHANISM DECK SECTION (MF-V5-117)
CD BLOCK SECTION (KSM-213RDP)
2 two screws
3 eight screws
4 Open the CD lid in the
direction of the arrow.
1 Remove the battery case lid
in the direction of the arrow.
Ver 1.1 2002.05