Technics SL-EH760 User manual

AD0002035C2
Compact Disc Player
SL-EH760
Traverse Deck:RAE0152Z-1 Mechanismseries
Colour
(S)..........SilverType
Area
(E)..........Europe.
SPECIFICATIONS

1. Note
Refertotheservice manual for Model No. SA-EH760 (OrderNo. AD0002037C2)for information on
Packaging.
2. Handling Precautions forTraverse Deck
Thelaserdiodeinthetraverse deck (optical pickup)may break downduetopotential difference
causedbystaticelectricityofclothes or humanbody.
Sobecareful ofelectrostaticbreakdownduring repairofthetraverse deck (optical pickup).
2.1. Handling oftraverse deck (optical pickup)
1. Donotsubject thetraverse deck (optical pickup)tostatic
electricityas itisextremelysensitivetoelectrical shock.
2. To protect thelaserdiodeagainst electrostaticbreakdown, short
theflexibleboard(FFCboard)withacliporsimilarobject. Referto
Fig.2-1.
3. Take carenottoapplyexcessivestress totheflexibleboard(FFC
board).
4. Donotturnthevariableresistor(laserpoweradjustment). Ithas
alreadybeenadjusted. Referto Fig.2-1.
Fig.2-1.
2.2. Grounding forelectrostaticbreakdownprevention
2.2.1. Humanbodygrounding
Use theanti-staticwriststraptodischargethestaticelectricityfrom your body. Referto Fig.2-2.
Fig.2-2.
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2.2.2. Worktablegrounding
Putaconductive material (sheet) or steel sheeton thearea wherethetraverse deck (optical
pickup)isplaced, and ground thesheet. Referto Fig.2-3.
Fig.2-3.
Caution:
Thestaticelectricityofyourclothes will notbegroundedthrough
thewrist strap.
Sotake carenottolet yourclothes tough thetraverse deck (optical
pickup).
3. Precaution of LaserDiode
CAUTION:
Thisproduct utilizes alaserdiodewiththeunitturnedon, invisible
laserradiation isemittedfromthepickup lens.
Wavelength:780 nm
Maximumoutputradiation powerfrompickup:100 W/VDE
Laserradiation frompickup unitissafetylevel, butbesurethe
followings:
1. Donotdisassemblethepickup unit, since radiation fromexposed
laserdiodeisdangerous.
2. Donotadjust thevariableresistoron thepickup unit. Itwas
alreadyadjusted.
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3. Donotlookat thefocuslensusing optical instruments.
4. Recommend nottolookat thepickup lensforalong time.
4. Location of Controls
5. Operation Checks and Component Replacement
Procedures
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5.1. Checking forthemainP.C.B.
-Check themainP.C.B. as shownbelow.
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5.2. Checking fortheoperation P.C.B.
-Follow the(Step1) -(Step3) ofitem5.1.
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-Check theoperation P.C.B. as shownbelow.
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5.3. Checking fortheCD servoP.C.B.
-Follow the(Step1) -(Step3) ofitem5.1.
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-Check theCD servoP.C.B. as shownbelow.
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5.4. Replacementforthetraverse deck ass’y
-Follow the(Step1) -(Step3) ofitem5.1.
-Follow the(Step1) -(Step4) ofitem5.2.
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5.5. Replacementforthedisc tray
-Follow the(Step1) -(Step3) ofitem5.1.
-Follow the(Step1) -(Step4) ofitem5.2.
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5.6. Disassemblyand reassemblyformechanismbase driveunit
-Follow the(Step1) -(Step3) ofitem5.1.
-Follow the(Step1) -(Step4) ofitem5.2.
-Follow the(Step1) -(Step10) ofitem5.4.
-Follow the(Step1) -(Step12) ofitem5.5.
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