Panasonic SA-AK600GC User manual

ORDERNO. MD0205110C3
CD StereoSystem
SA-AK600GC/ SA-AK600GN
Colour
(S)... SilverType
TAPE SECTION:
SG2MECHANISMSERIES
CD SECTION:
RAE0152Z-3 TRAVERSE DECK SERIES
SPECIFICATIONS
Specifications
1

AMPLIFIERSECTION
Poweroutput
10%THD, both channelsdriven
75 Hz
Subwoofer 160 W
(Total effectiveimpedance:4
)
1kHz
Front 35 W perch (6 )
Center 70 W (8 )
Surround 40 W perch (8 )
Total powerin stereo mode (Frontand Subwoofer)230 W
Total powerin DOLBYDIGITAL mode 380 W
PMPOpoweroutput(forGC
only) 3200 W
Inputsensitivity
AUX1, AUX2 250 mV
Inputimpedance
AUX1, AUX2 13.3k
Digital input
Optical 1
Coaxial 1
FMTUNERSECTION
Frequencyrange 87.50 -108.00 MHz(50 kHz
steps)
Sensitivity 2.5V(IHF)
S/N26 dB 2.2V
Antennaterminals 75 (unbalanced)
AMTUNERSECTION
Frequencyrange 522 -1629 kHz(9kHzsteps)
520 -1630 kHz(10 kHzsteps)
Sensitivity
S/N20 dB(at999 kHz) 560 V/m
CASSETTEDECK SECTION
Track system 4track, 2channel
Heads
Record/playback Solid permalloyhead
Erasure Doublegap ferritehead
Motor DCservo motor
Recording system ACbias 100 kHz
Erasing system ACerase 100 kHz
Tapespeed 4.8cm/s(17/8ips)
Overall frequencyresponse (+3 dB, -6dBatDECK OUT)
NORMAL (TYPEI) 35 Hz-14 kHz
S/Nratio 50 dB(A_WTD)
Wowand flutter 0.18 %(WRMS)
Fastforward and rewind time Approx. 120 secondswith
C-60 cassettetape
2

DISCSECTION
Sampling frequency 44.1kHz
Decoding 16 bitlinear
Beam source/wavelength Semiconductorlaser/780 nm
Numberofchannels Stereo
Frequencyresponse 20 Hz-20 kHz(+1, -2dB)
Wowand flutter Belowmeasurablelimit
Digital filter 8fs
D/Aconverter MASH(1bitDAC)
GENERAL
Powersupply
ForGConly AC110 V/ 127V/ 220-230 V/ 240
V, 50/ 60Hz
ForGNonly AC230-240 V, 50Hz
Powerconsumption 170 W
Dimensions(W xHxD) 215.4x315 x350 mm
Mass Approx7.1kg
PowerConsumption in standbymode
ForGConly 0.85 W
ForGNonly) 0.49 W
SYSTEM
SC-AK600(GC) Musiccenter:SA-AK600(GC)
Frontspeaker:SB-AK600(GC)
Centrespeaker:SB-PC93(GC)
Surround speaker:SB-PS90(GC)
SC-AK600(GN) Musiccenter:SA-AK600(GN)
Frontspeaker:SB-AK600(GC)
Centrespeaker:SB-PC93(GC)
Surround speaker:SB-PS90(GC)
Notes:
1. Specificationsaresubjectto changewithout notice. Mass and
dimensionsareaproximate.
2. Total harmonicdistortion ismeasuredbythedigital spectrum
analyzer.
2002 Matsushita Electronics (S)Pte. Ltd. All rights reserved.
Unauthorizedcopying and distribution isaviolation oflaw.
1. BeforeUse
Besuretodisconnectthemainscord beforeadjusting thevoltageselector.
Use aminus(-) screwdrivertosetthevoltageselector (on therearpanel)tothevoltagesetting
for thearea inwhichtheunitwill beused. (Ifthepowersupplyinyour area is117V or 120V, setto
the“127V”position.)
3

Notethatthisunitwill beseriouslydamagedifthissetting isnotmadecorrectly. (Thereisno
voltageselector for somecountries, thecorrectvoltageisalreadyset.)
2. BeforeRepairand Adjustment
DisconnectACpower, dischargePowerSupplyCapacitorsC571-C574 and C581 through a10 ,
5Wresistor toground.
DONOTSHORT-CIRCUITDIRECTLY(withascrewdriverblade, for instance), as thismay destroy
solidstatedevices.
Afterrepairsarecompleted, restorepowergraduallyusing avariac, toavoidovercurrent.
Currentconsumption atAC240 V, 50 HzinNOSIGNALmodeshouldbe~800mA.
3. Protection Circuitry
Theprotection circuitrymay have operatedifeitherofthefollowing conditionsarenoticed:
-Nosound isheardwhenthepoweristurnedon.
-Sound stopsduring aperformance.
Thefunction ofthiscircuitryistopreventcircuitrydamageif, for example, thepositive and
negative speakerconnection wires are
“shorted”, or ifspeakersystemswithanimpedance less thantheindicatedratedimpedance of
theamplifierareused.
Ifthisoccurs, followtheprocedureoutlines below:
1. Turnoff thepower.
2. Determinethecause oftheproblemand correct it.
3. Turnon thepoweronce againafteroneminute.
Note:
Whentheprotection circuitryfunctions, theunitwill notoperateunless thepowerisfirstturned
off and thenon again.
4. Accessories RemoteControl Transmitter
FMindoor antenna
ACmainslead(for GConly)
4

ACmainslead(For GNonly)
AMLoop antenna
Powerplug adaptor (for GConly)
5. Handling Precautions ForTraverse Deck
Thelaserdiodeinthetraverse deck (optical pickup)may break downduetopotential difference
causedbystaticelectricityofclothes or humanbody.
So, becareful ofelectrostaticbreakdownduring repairofthetraverse deck (optical pickup).
-Handling oftraverse deck (optical pickup)
1. Donotsubject thetraverse deck (optical pickup)tostatic
electricityas itisextremelysensitivetoelectrical shock.
2. Theshortland betweentheNo.4(LD)and No.5(GND)pinson the
flexibleboard(FFC)isshortedwithasolderbuild-up toprevent
damagetothelaserdiode.To connect tothePCboard, besureto
openbyremoving thesolderbuild-up, and finishtheworkquickly.
3. Take carenottoapplyexcessivestress totheflexibleboard(FFC).
4. Donotturnthevariableresistor(laserpoweradjustment). Ithas
alreadybeenadjusted.
5

-Grounding forelectrostaticbreakdownprevention
1. Humanbodygrounding
Use theanti-staticwrist straptodischargethestaticelectricity
fromyourbody.
2. Worktablegrounding
Putaconductivematerial (sheet) orsteel sheet on thearea where
thetraverse deck (optical pickup)isplaced, and ground thesheet.
Caution :
Thestaticelectricityofyourclothes will notbegroundedthrough
thewrist strap. So, take carenottolet yourclothes touchthe
traverse deck (optical pickup).
Caution whenReplacing theTraverse Deck :
Thetraverse deck has ashortpointshortedwithsoldertoprotect
thelaerdiodeagainst electroststics breakdown. Besuretoremove
thesolderfromtheshortpointbeforemaking connections.
6

6. Precaution of LaserDiode
Caution :
Thisproduct utilizes alaserdiodewiththeunitturned"ON",
invisiblelaserradiation isemittedfromthepick up lens. /
Wavelength:780 nm/ Maximumoutputradiation powerfrompick
up :100 W/VDE/ Laserradiation frompick up unitissafetylevel,
butbesurethefollowings:
1. Donotdisassembletheoptical pick up unit, since radiation from
exposedlaserdiodeisdangerous.
2. Donotadjust thevariableresistoron thepick up unit. Itwas
alreadyadjusted.
3. Donotlookat thefocuslensusing optical instruments.
4. Recommend nottolookat pick up lensforalong time.
ACHTUNG:
Dieses Produkt enthälteineLaserdiode. ImeingeschaltetenZustand
wirdunsichtbareLaserstrahlung von derLasereinheitabgestrahlt. /
7

Wellenlänge:780nm/ MaximaleStrahlungsleistung der
Lasereinheit:100 W/VDE/ DieStrahlung anderLasereinheitist
ungefährlich, wenn folgendePunkte beachtet werden:
1. DieLasereinheitnichtzerlegen, dadieStrahlung ander
freigelegtenLaserdiodegefährlichist.
2. DenwerkseitigjustiertenEinstellreglerderLasereinhitnicht
verstellen.
3. NichtmitoptischenInstrumentenindieFokussierlinse blicken.
4. NichtüberlängereZeitindieFokussierlinse blicken.
ADVARSEL:Idetteaapparatanvendes laser.
CAUTION!
THIS PRODUCTUTILIZES ALASER.
USE OFCONTROLS ORADJUSTMENTS ORPERFORMANCE OFPROCEDURES OTHERTHAN
THOSE
SPECIFIEDHEREINMAYRESULTINHAZARDOUS RADIATIONEXPOSURE.
Use ofCaution Labels
8

7. Operation Procedures
9

10

8. Disassemblyand MainComponent Replacement
Procedures
“ATTENTIONSERVICER”
Somechassiscomponentsmay have sharp edges.
Becareful whendisassembling and servicing.
11

1. Thissection describes procedures forchecking theoperation of
themajorprintedcircuitboardsand replacing themain
components.
2. Forreassemblyafteroperation checks orreplacement, reverse the
respectiveprocedures.
Special reassemblyprocedures aredescribedonlywhenrequired.
3. Select itemsfromthefollowing index whenchecks orreplacement
arerequired.
Contents
-DisassemblyProcedureforeachmajorP.C.B.
1. Checking oftheMain, Panel, Sub-Transformer, Deck P.C.B.
2. Checking ofPowerP.C.B.
-MainComponentReplacementProcedures
1. ReplacementoftheTraverse Deck.
2. ReplacementofthePowerAmplifierIC.
-Disassemblyand assemblyoftheTraverse Unit
-Disassemblyand assemblyoftheDisc Tray
Warning:
Thisproductuses alaserdiode. Refertocaution statement“Precaution ofLaserDiode.
8.1. DisassemblyProcedureforeachmajorP.C.B.
8.1.1. Checking oftheMain, Panel, Deck , Transformerand PowerP.C.B.
Step1Remove 3screwseachsideand 5screwsatrearpanel.
12

Step2Remove theTop Cabinet.
Step3Pushtheleverinthedirection ofthearrow.
13

Step4Pull outtheCD tray as shownand remove theCD lid. Pushback theCD tray aftertheCD
lidhas beenremoved.
14

Step5Release the2cathches, disconnectCN309 and CN310 and remove theCD changerbase
togetherwiththeCD changer.
Step6Remove 15 screws.
-Checking forMain, Panel , Sub-Transformerand Deck P.C.B
15

-Checking forPowerP.C.B.
16

8.2. MainComponentReplacementProcedures
8.2.1. ReplacementoftheTraverse Deck
Step1Followtheprocedures in‘DisassemblyoftheTraverse Unit’ (Step1-Step4).
Step3Desolderthe4legsofthe2motorsand pull outtheServoP.C.B.
Step4Widenthe3bosses withaflatscrewdriverand pull outthe3pins. Thenremove the
Traverse Deck.
17

Step5Remove theflexiblecableCN701.
-Removal oftheflexiblecable. Pushthetop oftheconnectorinthe
direction ofthearrow 1, and thenpull outtheflexiblecableinthe
direction ofthearrow 2.
Note:
Insertashortpinintotheflexiblecablefor traverse unit.
-Installation oftheCD servoP.C.B. afterreplacement
Step1ConnecttheFFCboard.
Step2Install theCD servoP.C.B. inthetraverse deck assembly.
Note:
18

Beforeinstalling theCD servoP.C.B., move theoptical pickup towardstheouteredgefrom the
marking (black triangle).
[Otherwise, theresetdetectswitch(S701)mountedon theCD servoP.C.B. may bedamaged.]
8.2.2. ReplacementofthePowerAmplifierIC
Step1Followtheprocedures in‘Checking Procedurefor eachmajor P.C.B.’ (Step1-Step4).
Step2Remove thewires atCN302, CN303 and CN304 and pull outtheMainPCB.
19

Step3Remove the2screwsfixedtothePowerAmplifierIC.
Step4UnsoldertheterminalsofPowerAmpICand replace therespective component.
8.3. Disassemblyand assemblyoftheTraverse Unit
Step1Pushtheleverfrom position AtoB.
Step2Pull thestopper(black)inthedirection ofarrow1and pushtheleverinthedirection of
arrow2.
Step3Pushthestopper(black)downuntil thewhiteleverejectout.
20