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ORDER NO.AD0603006CE

Colour
(S)............Silver Type

PAGE

PAGE

1 Safety Precaution ------------------------------------------------ 2

1.1. Precaution of Laser Diode------------------------------- 2
1.2. Handling Precautions for Traverse Deck ------------ 3

2 Service Navigation ----------------------------------------------- 4

2.1. About Lead Free Solder (PbF) ------------------------- 4

3 Specifications ----------------------------------------------------- 4

3.1. Accessories ------------------------------------------------- 4
3.2. Specifications ----------------------------------------------- 4

4 Service Mode ------------------------------------------------------ 5

4.1. Display of Self-Diagnostic Function------------------- 5

5 Troubleshooting Guide ----------------------------------------- 6

5.1. Checking the Operation Problems on the

Traverse Deck (Optical Pickup) ------------------------ 6

6 Disassembly and Assembly Instructions ---------------- 7

6.1. Operation Checks and Component

Replacement Procedures ------------------------------- 7

7 Measurements and Adjustments---------------------------12

7.1. Automatic Adjustment Results Display

Function (Self-check Function)------------------------12

2

This unit utilizes a class 1 laser. Invisible laser radiation is emitted from the pickup lens when the unit is turned on:

1. Do not look directly into the pickup lens.
2. Do not use optical instruments to look at the pickup lens.
3. Do not adjust the preset variable resistor on the optical pickup.
4. Do not disassemble the optical pickup unit.
5. If the optical pickup is replaced, use the manufactures specified replacement pickup only.
6. Use of control or adjustments or performance of procedures other than those specified herin may result in hazardous radiation

exposure.

This product utilizes a liser diode with the unit turned “on”, invisible laser radiation is emitted from the pickup lens.
Wave length: 780nm
Maximum output wadiation power from pickup: 100 

μW/VDE

Laserradiationfromthepickup lens is safety level, but be sure the followings:

1. Do not disassemble the optical pickup unit, since radiation from exposed laser diode is dangerous.
2. Do not adjust the variable resistor on the pickup unit. It was already adjusted.
3. Do not look at the focus lens using optical instruments.
4. Recommend not to look at pickup lens for a long time.

Dieses Produkt enthalt eine Laserdiode. Im eingeschalteten Zustand Wird unsichtbare Leserstrahlung von der Lasereinheit
abgestrahlt.
Wellenlage: 780nm
Maximale Strahlungsleistung der Lasereinheit: 100 

μW/VDE

Die StrahlungasderLasereinheitist ungefahrlich, wenn folgende Punkte beachtet werden:

1. Die Lasereinheit nicht zeriegen, de die Strahlung an der freigelegten Laserdiode gefahrlich ist.
2. Denwerkseitig Justierten Einstellregler der Lasereinhit nicht verstellen.
3. Nicht mit optischen Instrumenten in die Fokussierlines blicken.
4. Nicht uber langere Zeit in die Fokussierlines blicken.

3

The laser diode in the traverse deck (optical pickup) may break
down due to potential difference caused by static electricity of
clothes or human body.
So, be careful of electrostatic breakdown during repair of the
traverse deck (optical pickup).

1. The traverse deck (optical pickup) is an extremely high-

precision construction and must not be subjected to
impact, excessive vibration, or other types of rough han-
dling.

2. To protect the laser diode against electrostatic break-

down, be sure that the short land A and B of the flexible
board (FFC board) should be short-circuit by solder
before pulling out the FFC. Then inserting a short pin or
similar object intothetip of the flexible board.
(Refer to Fig.1)

3. Handle the flexible circuit boards with care; excessive

force could cause them to be broken.

4. Do not turn the pre-set variable resistor (for adjustment of

the laser power); it has been adjusted at the factory.
(as shown in Fig.1)

Fig.1

The new traverse deck short-circuits by the short pin, the foil
(C) and short lands to protect the laser diode against electro-
static breakdown. Be sure to replace to new one following pro-
cedures.

1. Remove the short pin from the FFC, and then connect it

to the connector.

2. Cut the foil (C). (Refer to Fig.1) (Take care not to make

contact with cutting point each other.)

3. Unsolder the short lands. (Refer to Fig.1)

1. Human body grounding

Use the anti-static wrist strap to discharge the static elec-
tricity from your body. (as shown in Fig.2)

2. Work table grounding

Put a conductive material (sheet) or steel sheet on the
area where the optical pickup is placed, and fround the
sheet. (as shown in Fig.3  )

The static electricity of your clothes will not be grounded
through the wrist strap.
So, take care not to let your clothes touch the traverse deck
(optical pickup).

Fig.2

Fig.3

4

PCBs (manufactured) using lead free solder will have a PbF stamp on the PCB.

• Pb free solder has a higher melting point than standard solder, Typically the melting point is 30-40

°C higher.

Please use a high temperature soldering iron. In case of soldering iron with temperature control, please set it to 370±10

°C.

• Pb free solder will tend to splash when heated too high (about 600

°C).

When soldering or unsoldering, please completely remove all of the solder on the pins or solder area, and be sure to heat the sol-
dering points with the Pb free solder until it melts enough.

• SL-SX475

- Stereo Earphones (L0BAB0000182).......................1pc.

• SL-SX480

- Stereo Earphones (L0BAB0000182).......................1pc.
- AC Adaptor (RFEA431E-2S)......................................1pc.

• SL-SX482

- Stereo Earphones (L0BAB0000183).......................1pc.
- AC Adaptor (RFEA431E-2S)......................................1pc.
- Wired Remote Control (N2QCBD000010).............1pc.

Note:
Specifications are subject to change without notice.
Mass and dimensions are approximate.

lRecharging time:

About 3 to 4 hours

lAudio (CD-DA)
Sampling frequency:

44.1kHz

No. of channels:

2 (left and right, stereo)

Frequency response:

20Hz to 20,000Hz

(+0dB to -3.6dB)

Headphone output level:

RMS max. 8mW+8mW/16

Ω

(adjustable)

lPickup
Light source:

Semiconductor laser

Wavelenghth:

795 nm

lMP3
Supported bit rates
(Supports variable bit rates):

32kbps to 320 kbps

(128kbps is recommended)

Supported sampling frequency:

48kHz/44.1kHz/32kHz

Maximum number of items:
  (total no. of albums and tracks);

999

  (total no. of albums);

500

Maximum album levels:

100

lGeneral
SL-SX475
Power supply:
  DC input
  (AC adaptor, not included);

DC4.5V

SL-SX480/SX482
Power supply:
  DC input
  (AC adaptor, included);

DC4.5V

AC adaptor input:

AC 220 to 230V 50/60Hz

Power consumption:
  Using AC adaptor (MP3/CD-DA); 

1.4W/1.2W

  Recharging; 

3.6W

Dimensions (W

×H×D):

138.6mm

×24.4mm×138.6mm

Mass:
  with batteries;

209g

  without batteries;

162g

Operational temperature range:

0

°C to 40°C

Rechargeable temperature range:

5

°C to 40°C

lPlay time
Using on a flat stable surface at 25

°C, EQ is off, Hold is on, Anti-skip is

on POS1 (CD-DA), recommended bit rate (MP3: 128kbps), and the
Digital Re-master is off (MP3). Play times are in hours and approxi-
mate.
*The play time may be less depending on the operating conditions.
*Play time will be considerably reduced when playing CD-RW.

Batteries used

MP3

CD-DA

2 alkaline batteries (LR6)

75

33

2 optional rechargeable batteries*
(P-3GAVE/2B)

33

15