Panasonic SA-AK88 Manuale utente

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Service Manual

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ORDERNO.MD0007118C3

CDStereoSystem

lSA-AK88

Colour

(S)...SilverType

Area

(GC)... Asia,LatinAmerica, Africaand MiddleNearEast

TAPESECTION

AR2 MECHANISM SERIES

CDSECTION

RAE0152Z-3 TRAVERSEDECKSERIES

Specification

AmplifierSection

Frontspeakerpoweroutput

Poweroutput

PMPO2400W

RMS poweroutput

THD 10%,bothchannels

driven

Total140 Wperchannel(6 )

LOW100 Wperchannel(6 )

HIGH40Wperchannel (6 )

PoweroutputinDolby Pro Logicmode

PMPOTotal2800W

RMS poweroutput

THD 10%

Total360 W

FrontLOW100 Wperchannel(6 )

FrontHIGH40Wperchannel (6 )

Center40W(8 )

Surround 20Wperchannel (8 )

Inputsensitivity

AUX250 mV

MIC0.7mV

Inputimpedance

AUX13.9k

MIC680

FM TunerSection

Frequencyrange87.50-108.00MHz(50 kHzstep)

Sensitivity2.5μV(IHF)

S/N26 dB2.2μV

Antennaterminal(s)75 unbalanced

AM TunerSection

Frequencyrange522-1629kHz(9kHzstep)

520-1630kHz(10kHzstep)

Sensitivity

S/N20 dB560μV/m

Cassette DeckSection

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8.2HowtoentertheSelf-DiagnosticFunction

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1.Turntheunit on with no cassetteinthedeck. (Selectthetapefunction)

2.Pressand holdthe“STOP/TUNEMODE”button foratleast2seconds.

3.Whilepressingthe“STOP/TUNEMODE”button, press“FF/MEMORY”button foratleast2

seconds.

4.“T”willappearon theFLdisplay. (unit isin theSelf-DianosticFunction)

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8.3CassetteMechanism Test(Forerrorcode

H01,H02,H03,F01,F02)

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1.Press“TAPE,DECK1/2”toselectDeck 2.

2.Loadacassettetapewiththeerasureprevention tab,removefromleftsideonlyand closethe

cassetteholder.

3.Press“FASTFORWARDMEMORY/NEXT”(Tapewill bestop after2seconds)

4.Loadacassettetapewiththeerasureprevention tab,removefromrightsideonlyand closethe

cassetteholder.

5.Press“REVERSEFMMODE/BP/PREV”(Tapewill bestop after2seconds)

6.Loadapre-recordedtapewithbothsiderecordtabsintactand closethecassetteholder.

7.Press“PLAY TUNE/TIMEADJSELECT”(AfterTPSfunction,tapewillstop automatically)

8.Press“REC/STOP”(Tapewill notmove)

9.Press“STOPTUNEMODE”toindicateErrorcode.

¡Ifseveralproblemexist,errorcodewillchangeeachtimewhen“TUNE

MODE/PBC”ispressed.

(e.g. H01 H03 F01 .....etc.)

10.Press“TAPE,DECK1/2”toselectDeck 1.

11.Repeatstep2to9 totestDeck1.(TapeDeck1will notcheck H02 becauseofno recording

function)

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8.4CD Mechanism Test(F15,F26,F16,F17,

F27,F28,F29,H15,F75)

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1.Press“CD”.

2.Press“CDMANAGER”.

3.Press“TUNEMODE”toindicateErrorCode.

¡Ifseveralproblemexist,errorcodewillchangeeachtimewhen “STOPTUNE

MODE”ispressed. (e.g. F15 F26 F16 .....etc.)

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8.5Toclearall Errorcode

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1.Press“STOPTUNEMODE/PBC”button for5seconds.

2.FLindicatorshows“CLEAR”for1second and changeto“T”.

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8.7PowerAmplifierFailure(F61)

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1.Whenpoweramplifierfail,F61 willindicateautomatically.

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9.1ErrordetectionforCassette Mechanism

block

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No.

ErrorErrorDisplay

Problemcondition

1MODESWdetection errorH01 Faultyoperation of cassette mechanism.Faultycontact or short-circuit ofmechanismmodeswitch(S951,

S971).

2RECINHSWdetection

error H02 Recording notpossible.Faultycontactor short-circuit ofRECINH switch(S974,S975).

3HALFSWdetectionerror H03 Playbackcannotperform.Faultycontactorshort-circuit ofHALFsiwtch(S952,S972).

4ReelPulsedetection errorF01 Thetapeadvancesslightlyandthenstops.Faultyreel pulse,faultyholedetectIC (IC951,IC971).

5TPSabnormal F02 Cassette deckwillnotperformTPSfunction.FaultyplaybackEQ/recording amplifierIC(IC101).

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9.2ErrordetectionforCD/Changerblock

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No.ErrorErrorDisplayProblemcondition

1RESTSWdetection errorF15 CDdoesnotfunction.Thiserror occurswhentheOptical PickUpRESTSW(S701)isnot

detectedwithinthespecifiedtime(about8seconds)

2CDtrayopensautomaticallyF16 CLAMP switch(S4)NG(Check&Replace)

3Doesnotstartup when[PLAY]buttonis

pressed F17 BOTTOM switch(S5) NG (Check&Replace)

4Transmissionerror betweenCDservoLSI

andmicon F26 CDdoesnotfunction.Thiserror occurswhenthePOWERisON for theCDblockandan

erroris

detectedafterthetransmissionhasstarted.

5StartupfailsevenwhenyouinsertCDor

theselecteddisctray

doesnotopen

F27 Tray1detect switchor Tray2detect switchNG (Check&Replace)

6CannotinsertCDF28 Tray1detect switchNG (Check&Replace)

7CannotejectCDF29 Checkifdiscisstuck. Tray2detect switchNG (Confirm&Replace)

8CDpowererrorF75 CDdoesnotfunction.CheckifCDRSTisHfor SELECTORat CD.IfitisnotHafter1

second,itshallbememorisedasanerror.(IC702)

9TheCDtrayclosesH15 CDdisctraydetectswitchNG (S3)(Check&Replace)

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9.3PowerSupply relatederrordetection

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No.ErrorErrorDisplayProblemcondition

1POWERAMPoutput

abnormal F61 WhenPOWERisswitchedon,powerbecomeoffautomatically.During normal operation,ifDCDET

becomeL,PCNTshall become

Landtheerror displayon theleftshall bedisplayed. (IC501)

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10 CD TestModeFunction

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ThisCDtestmodeisprovidedtocheck CDunit withoutconnectingto changerloadingmechanism.

Thismodeshall operateCDPLAYwithCDunitbeingconnectedonlyand CDAutomatic

Alignmentresult isshownon FLdisplay.

10.1HowtoentertheSelf-DiagnosticFunction

10.2CDAutomaticallyAdjustmentresult indication

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