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MICROFILM

AEP Model

UK Model

Model Name Using

CD Section

CFD-S23

Similar Mechanism

Tape Section

Optical Pick-up Type

KSM-213CDM

Tape Transport Mechanism Type

MF-V10-117

System

Compact disc digital audio system

Laser diode properties

Material: GaAlAs
Wave length: 780 nm
Emission duration : Continuous
Laser output : Less than 44.6 

µ

W

(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

Frequency range

FM

87.6 – 107 MHz

(EXCEPT Italian  Model)

87.5 – 108 MHz (Italian Model)

AM

531 – 1,602 kHz

IF

FM : 10.7 MHz
AM : 450 kHz

Aerials

FM: Telescopic aerial
AM : Built-in ferrite bar aerial

Recording system

4-track 2 channel stereo

Fast winding time

Approx. 120 s (sec.) with Sony cassette C-60

Frequency response

TYPE I (normal): 70 – l0,000 Hz

Speaker

Full range: 10 cm (4 in.) dia.,
2.8 ohms, cone type (2)

Outputs

Headphones jack (stereo minijack)
For 16 – 68 ohms impedance headphones

Maximum power output

2.5 W + 2.5 W

Power requirements

For CD radio cassette-corder
230V AC, 50Hz
9V DC, 6 R20 (size D) batteries

Power consumption

AC 20 W

Battery life

For CD radio cassette-corder

FM recording

Sony R20P : approx. 13.5 h

Sony alkaline LR20 : approx. 20 h

Tape playback

Sony R20P : approx. 7.5 h

Sony alkaline LR20 : approx. 15 h

CD playback

Sony R20P : approx. 2.5 h

Sony alkaline LR20 : approx. 7 h

Dimensions

Approx. 425 x 160 x 245 mm (w/h/d)
(16 

3

/

4

 x 6 

3

/

16

 x 9 

3

/

4

 inches) (incl.

projecting parts)

Mass

Approx. 4.0 kg (8 lb. 13 oz) (incl. batteries)

Supplied accessories

AC power cord (1 )

Design and specifications are subject to change
without notice.

– 2 –

Specifications ...........................................................................  1

.................................................... 3

Location of Controls .......................................................... 4

3-1. Front Cabinet, SW Board Removal ............................ 5
3-2. BATT Board, Tuner Board, AC Inlet Board,
        Power Board Removal ............................................... 5
3-3. Upper Cabinet Removal ............................................. 6
3-4. Optical pick-up Section, Mechanism deck,
        Main Board, CD Motor Board,
        REC SW Board Removal ........................................... 6

4-1. Mechanical Adjustments ............................................ 7
4-2. Electrical Adjustments ................................................ 7

5-1. Explanation of IC Terminals ..................................... 13
5-2. Block Diagram .......................................................... 15
5-3. Printed Wiring Boards .............................................. 19
5-4. Schematic Diagram – Main Section (1/2) – ............. 23
5-5. Schematic Diagram – Main Section (2/2) – ............. 29

6-1. Front Cabinet Section ............................................... 35
6-2. Upper Cabinet Section .............................................. 36
6-3. Rear Cabinet Section ................................................ 37
6-4. Mechanism Deck Section (1) (MF-V10-117) ........... 38
6-5. Mechanism Deck Section (2) (MF-V10-117) ........... 39
6-6. Optical Pick-up Section (KSM-213CDM) ............... 40

.................................... 41

!

!

This Compact Disc player is
classified as a CLASS 1
LASER product.
The CLASS 1 LASER
PRODUCT label is located
on the bottom exterior.

Use of controls or adjustments or performance
of procedures other than those specified herein
may result in hazardous radiation exposure.

Laser component in this product is capable of emitting
radiation exceeding the limit for Class 1.

A moulded plug complying with BS 1363 is fitted to this
equipment for your safety and convenience.

Should the fuse in the plug supplied need to be replaced, same
rating fuse approved by ASTA or BS1 to BS 1362, (i.e. marked
with 

2 ora @ mark) must be used.

– 3 –

The laser diode in the optical pick-up block may suffer electro-
static 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.

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.

On repairing CD section, playing a disc without the CD lid, use
Chuck Plate Jig.

r

 Code number of Chuck Plate Jig : X-4918-255-1

                 

1. Press CD open knob.
2. Open the lid for CD.
3. Push on SWITCH (S871) as following figure.
4. 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 
SWITCH (S871)

– 4 –

1 OPR/BATT indicator
2 POWER (or OPERATE) button
3 Tape operating buttons
4 Information display
5 SLEEP button
6 SOUND button
7 MEGA BASS button
8 VOL +/– buttons
9 OPEN/CLOSE button
!º DISPLAY/ENT/MEN button
!¡ PLAY MODE/MONO/ST/ISS button

!™ ± button
!£ ≠ button
!¢ π button
!∞ BAND PRESET +/– buttons
!§ fl button
!¶ WAKE UP button
!• FUNCTION button
!ª HEADPHONE jack
@º STANDBY button
@¡ CLOCK button

This section is extracted from
instruction manual.

3

1 2

4

6

5

7 8

9 !º

!¡

!™

!¢ !£

!§

!•

@º

!¶

!∞

!ª

@¡