Sanyo DC-DA370 Laser Beam Safety Precaution, CD PICK-UP Maintenance, CD Player Adjustments

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LASER BEAM SAFETY PRECAUTION

Pick-up that emits a laser beam is used in this CD player section.

CAUTION :

USE OF CONTROLS OR ADJUSTMENTS

OR PERFORMANCE OF PROCEDURES

OTHER THAN THOSE SPECIFIED HEREIN

MAY RESULT IN HAZARDOUS RADIATION

EXPOSURE

LASER OUTPUT

0.6 mW Max. (CW)

WAVELENGTH

790 nm

CAUTION – INVISIBLE LASER RADIATION WHEN OPEN AND

INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM.

ADVARSEL – USYNLIG LASER STRÅLING VED ÅBNING, NÅR

SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION, UNDGÅ UDS ÆTTELSE

FOR STRÅLING.

VARNING – OSYNLIG LASER STRÅLNING NÄR DENNA DEL ÄR ÖPPNAD

OCH SPÄRR ÄR URKOPPLAD. STRÅLEN ÄR FARLIG.

VORSICHT – UNSICHTBARE LASERSTRAHLUNG TRITT AUS, WENN DECKEL GEÖFFNET UND WENN SICHERHEITSVERRIEGELUNG ÜBERBRÜCKT IST. NICHT, DEM STRAHL AUSSETZEN.

VARO – AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA

NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.

CD PICK-UP MAINTENANCE

About pick-up (Optical lens) Cleaning

Clean a lens with swab of the cotton which moistened it with alcohol, cleaning paper or cleaning disc appointed. Specified cleaning disc : LC-1 (Part code : 645 026 1961 ..... manufactured by SANYO.)

Show a clean procedure in the following in reference by swab of cotton.

1.Cotton swab is wrapped with Cleaning paper.

2.Add the isopropyl alcohol.

3.Gently move the tip of cotton swab just like a draw a whirlpool from inside to outside on the surface of lens.

CD PLAYER ADJUSTMENTS

1.ADJUSTMENTS

(1)Confirm the tracking balance

1.Turn on the POWER switch.

2.Connect an Oscilloscope to TP2 (TE) and TP4 (VC).

3.Set the test disc.

4.Press "PLAY" button to turn into the "PLAY" mode.

5.Keep holding "SKIP" button down so as to be "SERCH" mode, then confirm that the oscilloscope waveform is symmetrical on the top and bottom in relation to 0V (VC).

200mV/div.

5ms/div.

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Contents File no DC-DA370 UKSystem Connections SpecificationsAdjustments Laser Beam Safety PrecautionCD PICK-UP Maintenance CD Player AdjustmentsOscilloscope Tape AdjustmentsAzimuth Adjustment Tape Speed AdjustmentTuning Tuner AdjustmentsWhen Assembling the Rack Gear and CD LID When Replacing LED D6310What to do if Exploded View Cabinet & Chassis Fixing Parts Parts ListPacking & Accessories Cabinet & ChassisFront P.W.BOARD Assy CD P.W.BOARD AssyIC LA1844ML Tuner & Amplifier P.W.BOARD AssyPower Transformer Primary P.W.BOARD Assy Power Transformer Secondary P.W.BOARD AssyCD LID Switch P.W.BOARD Assy IC104 TA7291S Bridge Driver Parts Listtape MechanismIC Block Diagram & Description Tape MechanismIC231 LA1844ML Tuner System IC440 AN7348K Play/Rec Pre Amp IC443 BA7755A Head SwitchFunction IC102 LC78622NE Digital Signal ProcessorIC241 LC72121M-D Pll Synthesizer IC601 LC867240A-5V46 Micro ProcessorLCD60 LCD Display DescriptionProduct Safety Notice Schematic Diagram CDSchematic Diagram Front Schematic Diagram Amplifier Schematic Diagram Tuner Page Voltage Table Transostor Osaka, Japan Wiring ConnectionWiring Diagram CD & Front CD P.W.BOARD Front P.W.BOARD