Panasonic SA-AK88 User manual

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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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