Panasonic SL-SW947P User manual

Order No.AD0504042CE

PortableCD Player

SL-SW947P / SL-SW947PC

Colour

(A)..........Blue Type (SL-SW947PConly)

(S)..........Silver Type (SL-SW947P only)

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SPECIFICATIONS

Specification

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Audio(CD-DA)

Sampling frequency: 44.1kHz

No. of channels: 2 (left and right, stereo)

Headphoneoutput level: RMS max. 8mW+8mW/ 16 /

(adjustable)

Frequencyresponse: 20 to20,000 Hz / (+0.5dB ~ -

7dB)

MP3

Supportedbit-rates / (Supports

variablebit rates): 32kbpsto320kbps/ (128kbps

isrecommended)

Supportedsampling frequency: 48kHz/44.1kHz/32kHz

Maximumnumber oritems /

(total no. of albums and tracks): 999

Maximumalbumlevels: 100

Pickup

Light source: Semiconductorlaser

Wavelength: 780 nm

GENERAL

Power supply:

DC input (RP-AC46, not included)

;DC 4.5V

Operational temperature range: 0 °C—40 °C (32 °F—104 °F)

Rechargeabletemperature range: 5 °C—40 °C (41 °F—104 °F)

Playtime:

Using on aflat stablesurface at 25°C (77°F), EQ isoff, Holdison,

Anti-skipison POS 1(CD-DA), recommendedbit rate(MP3: 128

kbps), and theDigital Re-master isoff (MP3).Playtime are in

hours and approximate.

Batteries used:

2alkalinebatteries (LR6); MP3disc....110h/ CD-DA

disc....60h

2optional rechargeable

batteries (P-3GAVA/2B); MP3disc....44h/ CD-DA

disc....25h

Recharging time: About 3to4.5hours

-Theplaytimemaybeless depending on theoperating conditions.

-Playtimewill beconsiderablyreduced when playing CD-RW.

Dimensions(WxHxD): 140mmx32.7mmx141mm / (517/

32”×15/16”×59/16”)

Mass: 295.5g(10.43oz.) (with

batteries)

249.1g(8.79oz.) (without

batteries)

Note:

Specificationsare subject tochangewithout notice.

Mss and dimensionsare approximate.

Noteon CD-R and CD-RW:

ForCD-DAformat, use amusicdisc and finalize*it after

recording. Theunit maynot beabletoplaysome discs dueto

thecondition of therecording. / *Aprocess performedafter

recording that enables CD-R/CD-RWplayers toplayaudioCD-R

and CD-RW.

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Unauthorized copying and distribution isaviolation of law.

1. Accessories

-1Pairof stereo headphones: L0BAD0000174

-1Hand strap: RGQT0006-K1

2. Precaution of Laser Diode

Caution:

Thisproduct utilizes aclass 1laser. Invisiblelaser radiation is

emitted from the optical pick-up lens when the unitisturned on:

1. Donot look directlyinto the pick-up lens.

2. Donot use optical instruments to look at the pick-up lens.

3. Donot adjust the preset variableresister on the optical pick-up.

4. Donot disassemblethe optical pick-up unit.

5. Ifthe optical pick-up isreplaced, use the manufacture’sspecified

replacement pick-up only.

6. Use of control or adjustments or performance of procedures other

than those specified hereinmayresultinhazardous radiation

exposure.

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3. Handling Precautions for Traverse Deck

The laserdiode inthe traverse deck (optical pick-up) maybreak downdue topotential

difference causedbystatic electricityof clothes orhumanbody.

So, be careful of electrostatic breakdownduring repairof the traverse deck (optical pick-up).

3.1. Handling of traverse deck (optical pick-up)

1. Donot subject the optical pick-up to staticelectricityas itis

extremelysensitive to electrical shock.

2. To protect the laser diode against electrostaticbreakdown, be

sure that the short land of the flexibleboard (FFCboard) should

be short-circuitbysolder before pulling out the FFC. Then

inserting ashort pinor similar object into the tipoftheflexible

board. / (Refer to Fig. 3-1. )

3. Take care not to applyexcessive stress to the flexibleboard (FFC

board).

4. Donot turn the variableresistor (laser power adjustment). Ithas

alreadybeen adjusted. (Refer to Fig. 3-1. )

Fig. 3-1.

3.2. Caution when replacing traverse deck

The newtraverse deck short-circuits bythe short pin, the foil (B) and short lands toprotect the

laserdiode against electrostatic breakdown. Be sure toreplace tonewone following

procedures.

1. Remove the short pinfrom the FFC, and then connect itto the

connector.

2. Cut the foil (B). (Refer to Fig. 3-1. )(Take care not to make contact

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with cutting point each other.)

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

3.3. Grounding for electrostaticbreakdownprevention

3.3.1. Human bodygrounding

Use the anti-static wrist straptodischarge the static electricityfromyourbody. (RefertoFig. 3-2.

)

Fig. 3-2.

3.3.2. Worktablegrounding

Put a conductive material (sheet) orsteel sheet on the area where the traverse deck (optical pick

-up) is placed, and ground the sheet. (Referto Fig. 3-3. )

Fig. 3-3.

Caution:

The staticelectricityof your clothes will not be grounded through

the wrist strap.

So take care not to let your clothes touch the traverse deck (optical

pick-up).

4. Operation Checks and Component Replacement /

Procedures

-Thissection describes procedures for checking the operation of

the major printed circuitboards and replacing the main

components.

-For reassemblyafter operation checks or replacement, reverse the

respective procedures. Special reassemblyprocedures are

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described onlywhen required.

4.1. Checking for the P.C.B. ass’y

4.1.1. Checking forthe P.C.B. ass’y(A side)

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-Check the P.C.B. ass’y(Aside) as shownbelow.

4.1.2. Checking forthe P.C.B. ass’y(B side)

-Follow the (Step 1) -(Step 4) of item 4.1.1.

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-Check the P.C.B. ass’y(Bside) as shownbelow.

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