CFD-6 - Sony Audio Service Manual (repair manual)

MICROFILM

AEP Model

UK Model

E Model

Model Name Using

CD Section

CFD-9

Similar Mechanism

Tape Section

CFD-9

Optical Pick-up Type

KSS-213B/K

Tape Transport Mechanism Type

MF-D8/2

Cassette-corder section

Recording system

4-track 2 channel stereo

Frequency response

TYPE I (normal) cassette : 70–10,000Hz

General

Speaker

Full range : 10 cm dia., 3.2 ohms, cone type

Outputs

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

Maximum power output 2.3W + 2.3W
Power requirements

AEP, Italian, East European model

220-230V AC,50HZz

UK model

230-240V AC,50HZz

Central&South America model

120V AC,60HZz

E model

100V-120V,
220V-240V AC,50/60Hz
selectable

DC 9V,6 R20 (size D) batteries

Power consumption

20 W

Battery life

Sony R20P

approx. 13.5 h

approx. 7.5 h

approx. 2.5 h

Sony Alkaline LR20 approx. 19 h

approx. 12 h

approx. 4.5 h

Dimensions

Approx. 500 x 156 x 243 mm (w/h/d)
incl. projecting parts

Mass

4.1 kg (incl. batteries)

Supplied accessories

Mains lead (1)

Design and specifications are subject to change without notice.

POWER OUTPUT AND TOTAL HARMONIC DISTORTION
With 3.2-ohm loads, both channel driven from 150–10,000 Hz; rated 2.0 W
per channel-minimum RMS power, with no more then 10% total harmonic
distortion in AC operation.

CD player section

System

Compact disc digital audio system

Laser diode properties

Material : GaAlAs
Wave length : 780nm
Emission duration : Continuous
Laser output : Less than 44.6mW
(This output is the value measured at a distance of
about 200 mm from the objective lens surface on
the optical Pick-up block )

Spindle speed

200 r / min (rpm) to 500 r / min (rpm) (CLV)

Error correction

Sony Simple Error Correction

Number of channels

2

Frequency response

20 – 20,000 Hz +1.0 / –2.5 dB

Wow and flutter

Below measurable limit

Radio section

Frequency range

AEP, UK model

 87.6–107MHz

531–1,602kHz

Italian model

87.5-108MHz

526.5–1,606.5kHz

Central&South America model

87.6-108MHz

530–1,710kHz

E model

87.6-108MHz

526.5–1,605kHz

East European model

65-108MHz

531–1,602kHz

 IF

FM : 10.7MHz
AM : 455kHz

Aerials

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

– 2 –

• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.

Specification .............................................................................. 1

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

Location and Function of Controls ..................................... 4

3-1. Cabinet (Front) Removal ............................................. 5
3-2. Tuner Dial, Tuner Board Removal ............................... 5
3-3. Mechanism Deck, Main Board Removal ..................... 6
3-4. CD Cabinet, Cabinet (Rear) Removal ......................... 6
3-5. Magnet, Chucking Plate Removal ............................... 7

............................ 7

5-1. Mechanical Adjustment ............................................... 8
5-2. Electrical Adjustment ................................................... 8

6-1. Circuit Boards Location ............................................... 14
6-2. Printed Wiring Boards ................................................. 15
6-3. Schematic Diagram (Tuner/Tape/Power Section) ........ 19
6-4. Schematic Diagram (CD Section) ................................ 23

7-1. Cabinet (Front) Section ................................................ 27
7-2. Cabinet (Rear) Section ................................................. 28
7-3. Mechanism Deck Section -1 ........................................ 29
7-4. Mechanism Deck Section -2 ........................................ 30
7-5. CD Chassis Section ...................................................... 31
7-6. Optical Pick-up  Section .............................................. 32

...................................... 33

!

!

Invisible laser radiation whin open and interlock failed or defeated.
Avoid direct exposure to beam.

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

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

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

– 3 –

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.

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 more than 30 cm away from the  objective lens.

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

                      

1. Press CD open knob.
2. Open the lid for CD.
3. Push on LEAF SWITCH (S801) 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.

Laser diode

Insert a precision 
screwdriver and push
LEAF SWITCH (S801)

– 4 –

CD operation buttons

=

(FR)

+

(FF)

^

(PLAY/PAUSE)

π

(STOP)

TUNING knob

AMS/SEARCH

CD OPEN button

TAPE operation buttons

P

PAUSE 

p6

STOP/EJECT

0

FF

)

REW

(

PLAY

r

 REC

TELESCOPIC antenna

FUNCTION switch

OPR/BATT indicator

TONE control

VOLUME control

2

 jack

AC IN jack

VOLTAGE 
SELECTOR knob

Information display

Cassette holder

MONO/STEREO switch
(AEP, UK, IT, EE model)