Panasonic SAAK58 - MINI HES W/CD Manuale utente

ORDERNo.MD0005087C3

CD Stereo System

SA-AK58

Colour

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

Areas

(GN)............... Oceania.

TAPE SECTION:AR2MECHANISM SERIES

CD SECTION:RAE0152Z-M TRAVERSE DECK SERIES

SYSTEM :SC-AK58

SPECIFICATIONS

Specifications

AMPLIFIER SECTION

RMS power output

THD 10%, bothchannelsdriven

Front (Low) 110Wper channel (6 )

Front (High) 40Wper channel (6 )

Total Bi-amppower 150Wper channel (6 )

Power output in

DolbyProLogicmode

RMS power output

THD 10%, bothchannelsdriven

Front (Low) 110Wper channel (6 )

Front (High) 40Wper channel (6 )

Center 1kHz 30W(8 )

Surround 1kHz 15Wper channel (4 )

Total power output 360W

/ Input sensitivity

AUX 250mV

Input impedance

AUX 13.9k

FM TUNER SECTION

Frequencyrange 87.5- 108.00MHz / (50kHz

steps)

Sensitivity 2.5 V (IHF)

S/N 26dB 2.2 V

Antennaterminal (s) 75 (unbalanced)

AM TUNER SECTION

Frequencyrange 522 - 1629kHz (9kHz steps)

Sensitivity

S/N 20dB 560 V/m

CASSETTE DECK SECTION

Track system 4 track, 2channel

Heads

Record/playback Soildpermalloyhead

Erasure Doublegapferritehead

Motor DC servomotor

Recording system AC bias 100kHz

Erasing system AC erase 100kHz

Tapespeed 4.8cm/s

Over frequencyresponse (+3, -6dB at DECK OUT)

NORMAL(TYPE I) 35Hz - 14kHz

HIGH (TYPE II) 35Hz - 14kHz

S/N 50dB (Aweight)

Wowand flutter 0.18%(WRMS)

Fast forwardand rewind times Approx. 120 secondswith

C-60 cassettetape

CD SECTION

Sampling frequency 44.1kHz

Decoding 16 bit linear

Beam source/wavelength Semiconductorlaser/ /

780nm

Frequencyresponse 20Hz - 20kHz (+1, -2dB)

Wowand flutter Belowmeasurablelimit

Digital filter 8fs

D/Aconverter MASH (1bit DAC)

GENERAL

Power supply AC230 - 240V, 50Hz

Power consumption 185W

Standby

Normal mode 18W

Ecomode 0.4W

Dimensions(WxHxD) 270x331x338mm

Weight 8.4kg

Power consumption instandbymode

Ecomodeon 0.25W

Ecomodeoff 18W

Notes:

1. Specificationsare subject tochangewithout notice. / Weight

and dimensionsare approximate.

2. Total harmonicdistortion ismeasuredbythedigital spectrum

analyzer.

*1 Manufacturedunder license fromDolbyLaboratories

Locensing Corporation. “Dolby”, thedouble-D symbol and

“PRO LOGIC” are trademarks of DolbyLaboratories

Licensing Corporation.

SYSTEM

SC-AK58 : / Mainunit : SA-AK58

/ Front speakers : SB-AK58 /

Surround speakers : SB-PS55 /

Center Speakers : SB-PC55

Unauthorized copying and distribution isaviolation of law.

1. Accessories

2. Before Repair

1. Turn off the power supply. Using a10 , 10W resistor, connect

both ends of power supplycapacitors (C571 -574, 558) inorder to

discharge the voltage.

2. Before turning the power supplyon, after completion of repair,

slowlyapplythe primaryvoltage byusing apower supplyvoltage

controller to make sure that the consumed current at 50HzinNO

SIGNALmode shouldbe shownbelow with respect to supply

voltage 230/230-240V.

Powersupply

voltage AC230 - 240V,

50Hz

Consumed

current Less than

350mA

3. Protection Circuitry

The protection circuitrymayhave operatedif eitherof the following conditions are noticed:

-Nosound isheard when the power isswitched ON.

-Sound stops during aperformance.

The function of this circuitryis toprevent circuitrydamage if, forexample, the positive and

negative speakerconnection wires are “shorted”, orif speakersystems withanimpedance less

thanthe indicatedratedimpedance of the amplifierare used. / If this occurs, followthe

procedure outlines below:

1. Switch OFF the power.

2. Determine the cause of the problem and correct it.

3. Switch ONthe power once again.

Note:

When the protection circuitryfunctions, the unitwill not operate

unless the power isfirst switched OFF and ONagain.

4. Handling Precautions for Traverse Deck

The laserdiodes inthe traverse deck (optical pickup) maybreak downdue topotential

difference causedbystatic electricityof clothes orhumanbody. / So, be careful of electrostatic

breakdownduring repairof the traverse deck (optical pickup).

4.1. Handling the traverse deck / (optical pickup)

1. The traverse deck (optical pickup) isan extremelyhigh-precision

construction and must not be subjected to impact, excessive

vibration, or other types of rough handling.

2. Inorder to prevent staticelectricitydamage to the laser diode, use

ashort pinor similar tool to short the optical pickup’sflexible

circuitboards after theyhave been disconnected from the main

circuitboard.

3. Handlethe flexiblecircuitboards with care; excessive force could

cause them to be broken.

4. Donot turn the pre-set variableresistor (for adjustment of the

laser power); ithas been adjusted at the factory. / (as shownin

Fig.1)

Fig.1

4.2. Grounding for electrostaticbreakdownprevention

1. Human bodygrounding / Use the anti-ataticwrist strap to

discharge the staticelectricityfrom your body.

2. Work tablegrounding / Put aconductive material (sheet) or steel

sheet on the area where the optical pickup isplaced, and ground

the sheet. (sa shownin Fig.2)

Fig.2

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 pickup)

4.3. Caution when Replacing the Traverse Deck

The traverse deck has a short point shortedwithsolderprotect the laserdiode against

electrostatic breakbown. Be sure toremove the solderfromthe short point before making

connections.

CAUTION:

THISPRODUCTUNTILIZES ALASER. USE OFCONTROLS OR

ADJUSTMENTS ORPERFORMANCEOFPROCEDURES OTHER

THAN THOSE SPECIFIEDHEREINMAYRESULT INHAZARDOUS

RADIATIONEXPOSURE.

5. Precaution of Laser Diode

6. Location of Controls

7. Location of Controls for Remote Control

Transmitter

8. 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

described onlywhen required.

8.1. Checking for the mainP.C.B.

Indice

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