Panasonic SAAK300 - MINI HES W/CD PLAYER User manual

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Service Manual
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ORDERNO.MD0110223C1
A6
CDStereoSystem
lSA-AK300
Colour
(K)... BlackType
(S)...SilverType
Area
(P)... U.S.A.
(PC)...Canada
TAPESECTION :
SG-2WMECHANISMSERIES
CDSECTION:
RAE0152Z-3TRAVERSEDECKSERIES
Specifications
AMPLIFIERSECTION
Poweroutput
10%Totalharmonicdistortion
3kHz-16 kHz,bothchannelsdriven
(HIGH)45 Wperchannel(6 )
60 Hz-3kHz,bothchannelsdriven
(LOW)45 Wperchannel(6 )
TotalBi-Amppower90 Wperchannel
Poweroutput
10%Totalharmonicdistortion
10 kHz,bothchannelsdriven
(HIGH)48 Wperchannel(6 )
1kHz,both channelsdriven
(LOW)52 Wperchannel(6 )
TotalBi-Amppower100 Wperchannel
Inputsensitivity
AUX250 mV
InputImpedance
AUX13.3 k
FMTUNERSECTION
Frequencyrange87.9-107.9MHz(200kHzsteps)
87.5-108.0MHz(100kHzsteps)
Sensitivity2.5μV(IHF)
S/N26 dB2.2μV
Antennaterminal(s)75 (unbalanced)
AMTUNERSECTION
Frequencyrange520 -1710 kHz(10kHzsteps)
Sensitivity
S/N20 dB(at1000 kHz)560μV/m
CASSETTEDECKSECTION
Tracksystem4track, 2channel
Heads
Record/playbackSolidpermalloyhead

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©2001 MatsushitaElectronics(S)Pte.Ltd.Allrightsreserved. Unauthorizedcopyinganddistribution isaviolation oflaw.
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ErasureDoublegapferritehead
MotorDCservo motor
Recording systemACbias100 kHz
Erasing systemACerase100 kHz
Tapespeed4.8 cm/s
Frequencyresponse(+3dB,-6dBatDECKOUT)
NORMAL(TYPEI)35 Hz-14 kHz
S/N50 dB(Aweighted)
Wowand flutter0.18%(WRMS)
Fastforwardand rewindtimeApprox.120 secondswith
C-60 cassettetape
CDSECTION
Sampling frequency44.1 kHz
Decoding16 bitlinear
Beamsource/wavelengthSemiconductorlaser/780 nm
NumberofchannelsStereo
Frequencyresponse20 Hz-20 kHz(+1, -2dB)
Wowand flutterBelowmeasurablelimit
Digitalfilter8fs
D/AconverterMASH(1 bit DAC)
GENERAL
PowersupplyAC120 V,60Hz
Powerconsumption 165W
Powerconsumptioninstandbymode
0.34 W
Dimensions(Wx HxD)250 x315 x 345 mm
(927/32”x12 13/32”x13 19/32”)
Mass7.4 kg(16.3 lb)
SYSTEM
SC-AK300(P)MusicCenter:SA-AK300(P)
Speaker:SB-AK300(P)
SC-AK300(PC)MusicCenter:SA-AK300(PC)
Speaker:SB-AK300(P)
Notes:
1.Specificationsaresubjecttochangewithoutnotice.Mass and dimensionsareaproximate.
2.Totalharmonicdistortion ismeasuredby thedigitalspectrumanalyzer.
3.Thelabels“HIGH”and“LOW”on therearofthespeakersreferto High frequency andLowfrequency.

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9Self-DiagnosticFunction
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9.1Self-diagnosticdisplay
9.2HowtoentertheSelf-DiagnosticFunction
9.3CassetteMechanismTest(ForerrorcodeH01,H02, H03,F01, F02)
9.4CDMechanismTest(F15, F26,F16, F17,F27, F28,F29, H15)
9.5Toclearall Errorcode
9.6Howtogetoutfrom Self-Diagnosticfunction
9.7PowerAmplifierFailure(F61)
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9.1Self-diagnosticdisplay
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This unit isequippedwithaself-diagnosticdisplayfunction which,ifaproblemoccurs, will display
anerrorcodecorrespondingtotheproblem.
Usethisfunction whenperformingmaintenanceon theunit.
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9.2Howtoenter theSelf-DiagnosticFunction
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9.3CassetteMechanismTest(Forerror code
H01,H02,H03,F01,F02)
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1.Press“TAPE, DECK1/2”toselectDeck2.
2.Loadacassettetapewiththeerasureprevention tab,removefrom leftsideonlyand closethe
cassetteholder.
3.Press“FASTFORWARDMEMORY”(Tapewill bestopafter2seconds)
4.Loadacassettetapewiththeerasureprevention tab, removefrom rightsideonlyand closethe
cassetteholder.
5.Press“REVERSEFMMODE/BP”(Tapewill bestopafter2seconds)
6.Loadapre-recordedtapewithbothsiderecordtabsintactand closethecassetteholder.
7.Press“PLAY/TUNE/TIMEADJUP”(AfterTPS function, tapewillstopautomatically)
8.Press“REC/STOP”(Tapewill notmove)
9.Press“STOP/TUNEMODE”toindicateErrorcode.
¡Ifseveralproblemexist,errorcodewillchangeeachtimewhen“/TUNEMODE”is
pressed.
(e.g.H01 H03 F01 .....etc.)
10.Press“TAPE, DECK1/2”toselectDeck1.
11.Repeatstep2to9totestDeck1. (TapeDeck1will notcheckH02 becauseofno recording
function)
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9.4CD MechanismTest(F15,F26,F16,F17,
F27,F28,F29,H15)
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1.Press“CD”.
2.Press“OPEN/CLOSE(1)”and placeaCD.
3.Press“OPEN/CLOSE(1)”toclosethetray.
4.Press“OPEN/CLOSE(5)”and waituntil thetrayis open.
5.Press“OPEN/CLOSE(1)”and removetheCD.
6.Press“OPEN/CLOSE(1)”toclosethetray.
7.Press“/TUNEMODE”toindicateErrorCode.
¡Ifseveralproblemexist,errorcodewillchangeeachtimewhen“/TUNEMODE”is
pressed. (e.g. F15 F26 F16 ....etc).
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9.5Toclearall Errorcode
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1.Press“STOP/TUNEMODE”button for5seconds.
2.FLindicatorshows “CLEAR”for1second and changeto“T”.
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9.6Howtogetoutfrom Self-Diagnostic
function
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1.Press“Power”button OFF.
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9.7PowerAmplifierFailure(F61)
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1.Whenpoweramplifierfail,F61 willindicateautomatically.
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10 DescriptionofErrorCode
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10.1Errordetection forCassetteMechanismblock
10.2Errordetection forCD/Changerblock
10.3PowerSupplyrelatederrordetection
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10.1ErrordetectionforCassetteMechanism
block
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No.
Error ErrorDisplay
Problemcondition
1 MODESWdetectionerror H01 Faultyoperation ofcassettemechanism.Faultycontactorshort-circuit ofmechanismmodeswitch(S951,
S971).
2 RECINHSWdetection
error H02 Recording notpossible.Faultycontactorshort-circuit ofRECINH switch(S974, S975).
3 HALFSWdetectionerror H03 Playbackcannotperform.Faultycontactorshort-circuit ofHALFsiwtch(S952, S972).
4 ReelPulsedetection error F01 Thetapeadvancesslightlyandthenstops.Faultyreelpulse,faultyholedetectIC(IC951, IC971).
5 TPSabnormal F02 CassettedeckwillnotperformTPSfunction.FaultyplaybackEQ/recordingamplifierIC(IC101).

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10.2Error detection forCD/Changerblock
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No.
Error ErrorDisplay
Problemcondition
1 RESTSWdetection error F15 CDdoesnotfunction.ThiserroroccurswhentheOpticalPickUpRESTSW(S701)isnot
detectedwithin thespecifiedtime(about8seconds)
2 CDtray opensautomatically F16 CLAMPswitch (S4)NG(Check&Replace)
3 Doesnotstartup when [PLAY]buttonispressed F17 BOTTOMswitch(S5)NG (Check&Replace)
4 Transmission errorbetweenCDservoLSIandmicon F26 CDdoesnotfunction.Thiserroroccurswhen thePOWERisON fortheCDblock andanerroris
detectedafterthetransmissionhasstarted.
5 Startupfailseven when youinsertCDortheselecteddisctray
doesnotopen F27 Tray 1detectswitchorTray 2detectswitchNG (Check&Replace)
6 CannotinsertCD F28 Tray1detectswitchNG (Check &Replace)
7 CannotejectCD F29 Checkifdiscisstuck. Tray 2detectswitchNG (Confirm&Replace)
8 TheCDtray closes H15 CDdisctray detectswitchNG (S3)(Check&Replace)

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10.3PowerSupply relatederror detection
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No.
Error ErrorDisplay
Problemcondition
1 POWERAMPoutputabnormal
F61 When POWERisswitchedon,powerbecomeoffautomatically.During normaloperation,ifDCDETbecomeL,PCNTshall become
Land theerrordisplay ontheleftshall bedisplayed. (IC501)

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11 CD Test ModeFunction
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ThisCDtestmode isprovidedtocheckCDunit withoutconnectingtochangerloadingmechanism.Thismodeshall operateCDPLAYwithCDunit
beingconnectedonlyandCDAutomaticAlignmentresult isshownon FLdisplay.
11.1HowtosetCDtestmode
11.2CDAutomaticallyAdjustmentresult indication
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11.1HowtosetCDtestmode
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11.2CD AutomaticallyAdjustmentresult
indication
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UnderCDtestmode, pressingthenumerickey‘0’on theremotecontrollerwill displaytheauto
adjustmentresult. FLOCK, TLOCKand CLVSstatusshall beshownasbelow:
Duringtheabovedisplay, executingCDPLAY will displayautoadjustmentresult forCDPLAY
mode.
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15 BlockDiagram
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16 SchematicDiagram
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(All schematicdiagramsmaybemodifiedatany timewiththedevelopmentofthenewtechnology)
Note:
lS701
:Resetswitch
lS600
:Powerswitch
lS601
:Displayswitch
lS602
:Disc1switch
lS603
:Disc2switch
lS604
:Disc3switch
lS605
:Disc4switch
lS606
:Disc5switch
lS607
:CDopen/Closeswitch
lS910
:CDPlayswitch
lS911
:TapePlayswitch

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lS912
:Tuner/Band switch
lS913
:AUX switch
lS914
:SuperSound EQswitch
lS920
:Deck2Openswitch
lS921
:FF switch
lS922
:Stopswitch
lS923
:REWswitch
lS924
:Deck1openswitch
lS925
:Deck1/2switch
lS926
:Rec/Stopswitch
lS928
:PresetSetswitch/Subwooferswitch
lS951
:Modeswitch
lS952
:Halfswitch
lS953