Safety Instructions, Warnings, Notes, and Service HintsDVD728-731 /0X12.EN 3
2. Safety Instructions, Warnings, Notes, and Service Hints
2.1Safety Instructions2.2Warnings
2.1.1 General Safety2.2.1 General
Safety regulations require that during a repair:?All ICs and many other semiconductors are susceptible to
?Connect the unit to the mains via an isolation transformer.electrostatic discharges (ESD, w ). Careless handling
?Replace safety components, indicated by the symbol h , during repair can reduce life drastically. Make sure that,
only by components identical to the original ones. Any during repair, you are at the same potential as the mass of
other component substitution (other than original type) may the set by a wristband with resistance. Keep components
increase risk of fire or electrical shock hazard.and tools at this same potential. Available ESD protection
equipment:
Safety regulations require that after a repair, you must return - Complete kit ESD3 (small tablemat, wristband,
the unit in its original condition. Pay, in particular, attention to connection box, extension cable and earth cable) 4822
the following points:310 10671.
?Route the wires/cables correctly, and fix them with the - Wristband tester 4822 344 13999.
mounted cable clamps.?Be careful during measurements in the live voltage section.
?Check the insulation of the mains lead for external The primary side of the power supply (pos. 1005), including
damage.the heatsink, carries live mains voltage when you connect
?Check the electrical DC resistance between the mains plug the player to the mains (even when the player is 'off'!). It is
and the secondary side:possible to touch copper tracks and/or components in this
1. Unplug the mains cord, and connect a wire between unshielded primary area, when you service the player.
the two pins of the mains plug.Service personnel must take precautions to prevent
2. Set the mains switch to the 'on' position (keep the touching this area or components in this area. A 'lightning
mains cord unplugged!).stroke' and a stripe-marked printing on the printed wiring
3. Measure the resistance value between the mains plug board, indicate the primary side of the power supply.
and the front panel, controls, and chassis bottom. ?Never replace modules, or components, while the unit is
4. Repair or correct unit when the resistance ?on?.
measurement is less than 1 M&.
5. Verify this, before you return the unit to the customer/2.2.2 Laser
user (ref. UL-standard no. 1492).
6. Switch the unit ?off?, and remove the wire between the
?The use of optical instruments with this product, will
two pins of the mains plug.
increase eye hazard.
?Only qualified service personnel may remove the cover or
2.1.2 Laser Safetyattempt to service this device, due to possible eye injury.
?Repair handling should take place as much as possible
This unit employs a laser. Only qualified service personnel may with a disc loaded inside the player.
remove the cover, or attempt to service this device (due to ?Text below is placed inside the unit, on the laser cover
possible eye injury).shield:
CA UTION VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN AVOID EXPOSURE TO BEAM
Laser Device UnitAD VARSEL SYNLIG OG USYNLIG LASERSTRALING VED ABNING UNDGA UDSATTELSE FOR STRALING
AD VARSEL SYNLIG OG USYNLIG LASERSTRALING NAR DEKSEL! APNES UNNGA EKSPONERING FOR STRALEN
Type: Semiconductor laser V ARNING SYNLIG OCH OSYNLIG LASERSTRALNING N�R DENNA DEL �R �PPNAD BETRAKTA EJ STRALEN
V ARO! AVATTAESSA OLET ALTTIINA N�KYV�LLE JA N�KYM�TT�M�LLE LASER S�TEILYLLE. �L� KATSO S�TEESEEN
GaAlAsV ORSICHT SICHTBARE UND UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GE�FFNET NICHT DEM STRAHL AUSSETSEN
D ANGER VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN AVOID DIRECT EXPOSURE TO BEAM
Wavelength: 650 nm (DVD)A TTENTION RAYONNEMENT LASER VISIBLE ET INVISIBLE EN CAS D'OUVERTURE EXPOSITION DANGEREUSE AU FAISCEAU
: 780 nm (VCD/CD)
Output Power: 20 mW (DVD+RW
Figure 2-2
writing)
: 0.8 mW (DVD
2.2.3 Notes
reading)
: 0.3 mW (VCD/CD
reading)Dolby
Beam divergence: 60 degreeManufactered under licence from Dolby Laboratories. ?Dolby?,
?Pro Logic? and the double-D symbol are trademarks of Dolby
Laboratories. Confidential Unpublished Works. ?1992-1997
Dolby Laboratories, Inc. All rights reserved.
Figure 2-3
Figure 2-1
Trusurround
TRUSURROUND, SRS and symbol (fig 2-4) are trademarks of
SRS Labs, Inc. TRUSURROUND technology is manufactured
Note: Use of controls or adjustments or performance of
under licence frm SRS labs, Inc.
procedure other than those specified herein, may result in
hazardous radiation exposure. Avoid direct exposure to beam.
Figure 2-4 |
ACEC
