Technics SL-DV290EE User manual
ORDERNO.AD0305101C8
DVD/VideoCD/CD changer
SL-DV290EE / SL-DV290GN
Colour
(s)....................SilverType
System:SC-DV290
Because ofuniqueinterconnecting cables, whena
componentrequires service, send orbring intheentire
system.
Note:Refertotheservice manual forModel No.SA-
DV290EE/GN(ORDERNO.AD0305100C8) for
information on “ACCESSORIES”and “PACKAGING”.
SPECIFICATIONS
Specification
1
Discs played (8cm or12 cm)
DVD-Video/DVD-Audio
DVD-RAM/R(DVD-Video formatdiscs)
Video CD, CD(CD-DA)
MP3/WMA/JPEGformatdiscs)
Audio
No. ofchannels5.1channel (FL, FR, SL, SR, C, SW)
Video
Signal system PAL 625/50, PAL 525/60, NTSC
Outputlevel
Compositevideo 1Vp-p (75 )
S-video Y 1Vp-p (75 )
S-video C 0.300 Vp-p (75 )PAL
0.286 Vp-p (75 )NTSC
Pickup
Beam source Semiconductorlaser
Wavelength 658/790 nm
General
Dimensions(W×H×D) 293×89×288 mm
Mass 2.5kg
PowerSupply: DC10V
PowerConsumption: 12W
Nots 1.Design and specificationsaresubjectto
changewithoutnotice.
2.Dimensionsand weightareapproximate.
3.Total harmonicdistortion ismeasured bythe
digital spectrumanalyzer.
System/SC-DV290
Sound processor:SH-DV290, DVD/ Video CD/ CD
changer:SL-DV290, Tuner/ Amplifier:SA-DV290 ,
CassetteDeck:RS-DV290, Speakers:Front*(SB-
DV290),Center* (SB-PC95),Surround*(SB-PS95)
(*Madein MESA.)
1. BeforeRepair
Thisequipment(SL-DV290),whichisthecomponentofthissystem, issuppliedwithpowerfrom
thetuner/amplifier(SA-DV290)through thesound processor (SH-DV290). Whenrepairing this
equipmentor checking operation ofthesystem, besuretoconnectthetuner/amplifierand sound
2
processor withit.
Thisequipment, eveninthestateofitas asingleequipment, permitspowersupplyand operation
check. Whenoperating itas asingleequipmentwithoutthetuner/amplifierand sound processor,
refertotheparagraph of"Measurementsand Adjustments.
2. Precaution of LaserDiode
3. Operating Instructions
4. Handling Precautions forTraverse Deck
Thelaserdiodeinthetraverse deck (optical pickup)may break downduetopotential difference
causedbystaticelectricityofclothes or humanbody.So, becareful ofelectrostaticbreakdown
during repairofthetraverse deck (optical pickup).
4.1. Handling oftraverse deck (optical pickup)
1. Donotgiveconsiderableshock tothetraverse unit(optical
pickup)as ithas anextremelyhigh-precise structure.
2. Whenreplacing theoptical pickup, install theflexiblecableand cut
its shortland withanipper. See theoptical pickup replacement
procedureinthisTechnical Guide. Beforereplacing thetraverse
unit, removetheshortpinforpreventingstaticelectricityandinstall
3
anew unit. Connect theconnectoras shorttimeas possible.
3. Theflexiblecablemaybecutoff ifanexcessiveforce isappliedto
it. Use caution whenhandling thecable.
4. Thehalf-fixedresistorforlaserpoweradjustmentcannotbe
adjusted. Donotturntheresistor.
Fig. 1
4.2. Replacementprocedurefortheoptical pickup
1. Connect theFlexiblecabletotheconnectoron theterminal P.C.B..
2. Cuttheoptical unitFPCat thepointshownbelow. (Asshownin
Fig. 2.)
Fig. 2
4
4.3. Grounding forelectrostaticbreakdownprevention
1. Humanbodygrounding
Use theanti-staticwrist straptodischargethestaticelectricity
fromyourbody. (AsshowninFig. 3.)
2. Worktablegrounding
Putaconductivematerial (sheet) orsteel sheet on thearea where
theoptical pickup isplaced, and ground thesheet.
Caution:
Thestaticelectricityofyourclothes will notbegroundedthrough
thewrist strap. So, take carenottolet yourclothes touchthe
traverse deck (optical pickup).
Fig. 3
5. Operation Checks and Component Replacement
Procedures
-Thissection describes procedures forchecking theoperation of
themajorprintedcircuitboardsand replacing themain
components.
-Forreassemblyafteroperation checks orreplacement, reverse the
respectiveprocedures. Special reassemblyprocedures are
describedonlywhenrequired.
5
5.1. Checking fortheDVDmodule(1) P.C.B.
-Check theDVDmodule(1) P.C.B. (Aside) as shownbelow.
6
-Check theDVDmodule(1) P.C.B. (Bside) as shownbelow.
5.2. Checking fortheoperation P.C.B.
-Follow the(Step1) -(Step3) ofitem5.1.
7
8
-Check theoperation P.C.B. as shownbelow.
5.3. Checking forthemainP.C.B.
-Follow the(Step1) -(Step3) ofitem5.1.
-Follow the(Step1) -(Step5) ofitem5.2.
-Check themainP.C.B. as shownbelow.
9
5.4. Checking fortheDVDmodule(2) P.C.B.
-Follow the(Step1) -(Step3) ofitem5.1.
-Follow the(Step1) -(Step5) ofitem5.2.
-Check theDVDmodule(2) P.C.B. as shownbelow.
10
This manual suits for next models
1
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