Sony DFJ-61, DFJ-65 Service manual

D-FJ61/FJ65

SERVICE MANUAL

Ver 1.0 2000. 05

Photo : D-FJ61

SPECIFICATIONS

CD player

System

Compact disc digital audio system

Laser diode properties

Material: GaAlAs Wavelength: λ = 780 nm Emission duration: Continuous Laser output: Less than 44.6 µW (This output is the value measured at a distance of 200 mm from the objective lens surface on the optical pick-up block with 7 mm aperture.)

D-A conversion

1-bit quartz time-axis control

Frequency response

20 - 20 000 Hz

307)

Output (at 4.5 V input level)

Line output (stereo minijack)

Output level 0.7 V rms at 47 kΩ Recommended load impedance over 10 kΩ

Headphones (stereo minijack)

Approx.5 mW + Approx. 5 mW at 16 Ω (Approx. 1 mW + Approx. 1 mW at 16 Ω)* *For the customers in France

Radio

Frequency range (STEP switch)

9 kHz step:

FM: 87.5 - 108.0 MHz AM: 531 - 1 710 kHz

10 kHz step:

FM: 87.5 - 108.0 MHz AM: 530 - 1 710 kHz

+1–2

dB (measured by EIAJ CP-

Antenna

FM: Headphones/earphones cord antenna AM: Built-in ferrite bar antenna

General

Power requirements

For the area code of the model you purchased, check the upper left side of the bar code on the package.

• Two Sony NC-WMAA rechargeable batteries: 2.4 V DC

• Sony NH-WM2AA rechargeable batteries:

2.4 V DC

• Two LR6 (size AA) batteries: 3 V DC

• AC power adaptor (DC IN 4.5 V jack): US, CND, E92 model: 120 V, 60 Hz AEP, G, EE, E13, KR, FR model: 220 - 230 V, 50/60 Hz UK model: 230 - 240 V, 50 Hz EA model: 100 - 240 V, 50/60 Hz AUS model: 240 V, 50 Hz JE, E33 model: 100 - 240 V, 50/60 Hz HK model: 220 V, 50/60 Hz AR, CH model: 220 V, 50 Hz

• Sony DCC-E345 car battery cord for use on car battery: 4.5 V DC

US Model

AEP Model

UK Model

E Model

Australian Model

Chinese Model

D-FJ61/FJ65

Canadian Model

D-FJ61

Tourist Model

D-FJ65

Model Name Using Similar Mechanism D-E770/EJ711/EJ715 CD Mechanism Type CDM-3123EBA Optical Pick-up Type DAX-23E

Battery life* (approx. hours)

(When you use the CD player on a flat and stable surface.) Playing time varies depending on how the CD player is used.

When using G-PROTECTION RADIO

on off on

Two NC-WMAA 8 7 17 (charged for about 3 hours**)

NH-WM2AA 18 15 38 (charged for about 4 hours**)

Two Sony alkaline 32 28 66 batteries LR6SG

* Measured value by the standard of EIAJ

(Electronic Industries Association of Japan).

** Charging time varies depending on how the

rechargeable battery is used.

• Abbreviation CND : Canadian model AUS : Australian model JE : Tourist model FR : French model HK : Hong Kong model KR : Korean model AR : Argentina model. CH : Chinese model. G : German model. EE : East European model. EA : Saudi Arabia model. E13 : AC 220-230V area model E33 : AC 100-240V area model E92 : AC 120V area model

— Continued on next page —

FM/AM PORTABLE CD PLAYER

Operating temperature

5°C - 35°C (41°F - 95°F)

Dimensions (w/h/d) (excluding projecting parts and controls)

Approx. 131 × 30 × 136 mm

⁄4 × 1 3⁄16 × 5 3⁄8 in.)

Mass (excluding accessories)

Approx. 200 g (7.1 oz.)

Supplied accessories

For the area code of the location in which you purchased the CD player, check the upper left side of the bar code on the package.

D-FJ65

D-FJ61

AC power adaptor (1) Headphones/earphones with

remote control (1) Headphones/earphones (1) Rechargeable batteries (2) Battery carrying case (1) Strap (1) US model only

For US customers

The AC power adaptor supplied is not intended to be serviced. Should the AC power adaptor cease to function in its intended manner, during the warranty period, the adaptor should be returned to your nearest Sony Service Center or Sony Authorized Repair Center for replacement, or after warranty period, it should be discarded.

Design and specifications are subject to change without notice.

–

1. SERVICING NOTES ······················································· 3

2. GENERAL·································································· 4

3. DISASSEMBLY

3-1. Cabinet (Rear) Sub ASSY,

Cabinet (Front), Main Board ··············································· 6 3-2. MD ASSY············································································6 3-3. Motor ASSY, Turn Table (Spindle) (M901) ························7 3-4. “Motor ASSY (Sled) (M902)”,

Optical Pick-up (DAX-23E) ················································7 3-5. “Lid, Upper”, Switch Unit ···················································7

4. ELECTRICAL ADJUSTMENS····································8

5. DIAGRAMS

5-1. BLOCK DIAGRAM – CD SECTION – ··························· 11

– TUNER SECTION – ······················································ 13

5-4. SCHEMATIC DIAGRAM – TUNER SECTION – ·········· 15 5-5. SCHEMATIC DIAGRAM – CD SECTION – ·················· 17 5-2. PRINTED WIRING BOARD············································ 20 5-6. EXPLANATION OF IC TERMINALS····························· 23 5-7. IC BLOCK DIAGRAMS ·················································· 27

6. EXPLODED VIEWS

6-1. CABINET SECTION ························································ 30 6-2. OPTICAL PICK-UP SECTION

(CDM-3123EBA) ····························································· 31

7. ELECTRICAL PARTS LIST········································· 32

DANGER

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

CAUTION

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.

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

Flexible Circuit Board Repairing

• Keep the temperature of the soldering iron around 270°C during repairing.

• 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 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.

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 IDENTIFIÉS P AR 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 PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

— 2 —

S801

SECTION 1

SERVICING NOTES

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 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 objectiv e lens in the optical pick-up block. Therefore, when checking the laser diode emission, observe from more than 30cm away from the objective lens.

Before Replacing the Optical pick-up Block

Please be sure to check thoroughly the parameters as per the “Optical pickup Block Checking Procedure” (Part No. : 9-960-027-11) issued separately before replacing the optical Pick-up block. Note and specifications required to check are given below.

• FOK output : IC601 eg pin When checking FOK, remove the lead wire to disc motor.

• RF signal P-to-P value : 0.4 to 0.5Vp-p

Laser Diode Checking Methods

During normal operation of the equipment, emission of the laser diode is prohibited unless the upper panel is closed while turning ON the S801 (push switch type). The following two checking methods for the laser diode are operable.

Method : Emission of the laser diode is visually checked.

1. Open the upper lid.

2. Push the S801 as shown in Fig. 1 .

3. Check the object lens for confirming normal emission of the laser diode. If not emitting, there is a trouble in the automatic power control circuit or the optical pick-up. During normal operation, the laser diode is turned ON about 2.5 seconds for focus searching.

Fig.1 Method to push S801

— 3 —

LOCA TING THE CONTROLS

CD player (front)

SECTION 2

GENERAL

This section is extracted from instruction manual.

1 Display

(pages 8, 10 - 14, 16, 17)

2 PLAY MODE•

TUNING – button (pages 9 - 12)

3 ./>

(AMS/search) • PRESET –/+ buttons (pages 8, 10, 11, 15)

4 LINE OUT

jack (page 19)

8 u (play/pause)

button (pages 7, 8, 11)

9 DC IN 4.5 V (external

power input) jack (pages 7, 21)

q; Strap holes

(pages 6)

qa x (stop)/CHG (charge)•

RADIO OFF button (pages 8, 12, 18, 21)

qs REPEAT/ENTER•

TUNING + button (pages 9 - 12)

qd SOUND button

(page 16)

5 HOLD switch

(page 17)

6 VOLUME control

(page 7)

7 RADIO ON•B

button (pages 12, 15)

AND

qf i/REMOTE jack

(page 7)

qg OPEN switch

(page 7)

qh 1 - 5 buttons

(page 14)

— 4 —

CD player (inside)

CD player (rear)

qj STEP switch

(page 15)

qk G-PROTECTION

switch (page 16)

ql LOCAL/DX switch

(page 13)

Remote control

ws VOL (volume)

control (page 7)

w; AVLS switch

(page 17)

wa Battery compartment

(page 21)

(D-FJ65 only)

wg N(play)•>

(AMS/search)• PRESET + button (pages 7, 8, 10, 11, 15)

wd .(AMS/

search)•PRESET – button (pages 8, 10, 11, 15)

wf x (stop)•RADIO ON/

BAND•RADIO OFF* button (pages 12, 15)

* To turn off the radio, hold down until

the frequency indication disappears from the display.

wh HOLD switch

(page 17)

Note

Use only the supplied remote control. operate this CD player with the remote control supplied with other CD players.

You cannot

— 5 —

DISASSEMBLY

The equipment can be removed using the following procedure.

Cabinet (rear) sub ASSY, Main board MD ASSY

Set

SECTION 3

“Motor ASSY, Turn table (Spindle) (M901)”, Optical pick-up (DAX-23E), Motor ASSY (Sled) (M902)

Cabinet (front)

“Lid, Upper”, Switch unit

Note : Follow the disassembly procedure in the numerical order given.

3-1. CABINET (REAR) SUB ASSY, CABINET (FRONT), MAIN BOARD

Lid, Upper

Screws (B2)

OPEN

MD ASSY

Claws

Cabinet (Front)

Flexible board (CN801)

Main board

3-2. MD ASSY

Cabinet (Rear) sub ASSY

Claws

CN503 (White)

CN502 (Green)

Claws

Optical pick-up flexible board

Screw (B2)

MD ASSY

Main board

Claws

— 6 —

3-3. MOTOR ASSY, TURN TABLE (SPINDLE) (M901)

Screws

(B1.7x5)

3-4. OPTICAL PICK-UP (DAX-23E),

MOTOR ASSY (SLED) (M902)

Screw (B 1.7x5)

Cover, Gear

Chassis

3-5. “LID, UPPER”, SWITCH UNIT

Motor ASSY, Turn tabl (Spindle) (M901)

Screw (feed) assy

Chassis

Gear B

Motor ASSY (Sled) (M902)

Screw

(P 1.4x3.5)

Bracket (Shaft)

Optical pick-up (DAX-23E)

Button (Operate)

Button (Sound)

Switch unit

Cover ASSY, Lid

Window (LCD)

Claws

OPEN

Claws

Lid, Upper

Spring (Full open)

Cabinet (Front)

Screws

— 7 —

SECTION 4

)

ELECTRICAL ADJUSTMENTS

CD SECTION

The CD section adjustments are done automatically in this set.

Precautions for Check

1. Perform check in the order given.

2. Use YEDS-18 disc (Part No.: 3-702-101-01) unless otherwise indicated.

3. Power supply voltage requirement : DC4.5 V in DC IN jack.

(J401) VOLUME button : Minimum AVLS switch : NORM HOLD switch : OFF

Focus bias Check

Condition:

• Hold the set in horizontal state.

• Terminate TAP802 (open) by solder.

Connection:

Oscilloscope

(AC range)

2 K Ω

TP635 (GND)

[MAIN BOARD] (Side B)

TP629 (RF)

Procedure:

1. Connect the oscilloscope to the test points TP629 (RF) and TP635 (GND) on the MAIN board.

2. Set a disc. (YEDS-18)

3. Press the u button.

4. Check the oscilloscope waveform is as shown below. A good eye pattern means that the diamond shape (◊) in the center of the waveform can be clearly distinguished.

RF Signal reference Waveform (Eye Pattern)

VOLT/DIV : 100 mV (With the 10 : 1 probe in use TIME/DIV : 500ns

RF level

0.4 to 0.5 Vp-p

To watch the eye pattern, set the oscilloscope to AC range and increase the vertical sensitivity of the oscilloscope for easy watch-ing.

5. Stop revolving of the disc motor by pressing the x button.

— 8 —

SECTION 5

DIAGRAMS

TUNER SECTION

• Switch Location

VOLUME : MAX MEGA BASS : OFF AVLS : NORMAL

[AM]

BAND: AM Signal generator

AM RF signal generator

30% amplitude modulation by 400Hz signal. Output level : as low as possible

[FM]

BAND : FM Signal generator

FM RF signal generator

75kHz(100%) amplitude modulation by 1kHz signal. Output level: as low as possible

set

J301 (LINE OUT)

Put the lead-wire antenna close to the set.

0.01µF

level mete

16 Ω

0 dB = 1 µV

FM I point

• Repeat the procedures in each adjustment several times for the maximum level meter indication.

• The frequency coverage and tracking adjustments should be finally done by the trimmer capacitors.

AM IF ADJUSTMENT