Yamaha DVD-S559 Service Manual page 3

WARNING: Laser Safety
This product contains a laser beam component. This component may emit invisible, as well as visible radia-tion, which may cause eye
damage. To protect your eyes and skin from laser radiation, the following pre-cautions must be used during servicing of the unit.
1) When testing and/or repairing any component within the product, keep your eyes and skin more than 30 cm away from the laser pick-up
unit at all times. Do not stare at the laser beam at any time.
2) Do not attempt to readjust, disassemble or repair the laser pick-up, unless noted elsewhere in this manual.
3) CAUTION : Use of controls, adjustments or perform-ance of procedures other than those specified herein may result in hazardous
radiation exposure.
Laser Emitting Conditions:
1
) When the Top Cover is removed, and the STANDBY/ ON SW is turned to the "ON" position, the laser compo-nent will emit a beam for
several seconds to detect if a disc is present. During this time (5–10 sec.) the laser may radiate through the lens of the laser pick-up unit.
Do not attempt any servicing during this period!
If no disc is detected, the laser will stop emitting the beam. When a disc is loaded, you will not be exposed to any laser emissions.
2) The laser power level can be adjusted with the VR on the pick-up PWB, however, this level has been set by the factory prior to shipping
from the factory. Do not adjust this laser level control unless instruction is provided elsewhere in this manual. Adjustment of this control
can increase the laser emission level from the device.
Laser Diode Propeties
Type: Semiconductor laser GaAlAs
Wave length: 650 nm (DVD)
780 nm (VCD/CD)
Output Power: 5 mW (DVD/VCD/CD)
Beam divergence 60 degree
WARNING
The use of optical instruments with this product will increase eye hazard.
Repair handling should take place as much as possible with a disc loaded inside the player.
CAUTION
:VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN. AVOID EXPOSURE TO BEAM
VORSICHT
:SICHTBARE UND UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEÖFFNET NICHT DEM STRAHL AUSSETSEN
ADVARSEL
:SYNLIG OG USYNLIG LASERSTRÅLING VED ÅBNING UNDGÅ UDSÆTTELSE FOR STRÅLING
VARNING
:SYNLIG OCH OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD BETRAKTA EJ STRÅLEN
VARO !
:AVATTAESSA OLET ALTTIINA NÄKYVÄLLE JA NÄKYMÄTTÖMÄLLE LASER SÄTEILYLLE, ÄLÄ KATSO SÄTEESEEN
CUIDADO
:RADIACIÓN LÁSER VISIBLE E INVISIBLE AL ESTAR ABIERTO. EVITAR EXPOSICIÓN AL RAYO.
VARO! : AVATTAESSA JA SUOJALUKITUS OHITETTAESSA
OLET ALTTIINA NÄKYMÄTTÖMÄLLE LASER-
SÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.
VARNING! : OSYNLIG LASERSTRÅLNING NÄR DENNA DEL
ÄR ÖPPNAD OCH SPÄRREN ÄR URKOPPLAD.
BETRAKTA EJ STRÅLEN.
CAUTION VISIBLE AND INVISIBLE LASER RADIATION
WHEN OPEN. AVOID EXPOSURE TO BEAM.
ADVARSEL SYNLIG OG USYNLIG LASERSTRÅLING
VED ÅBNING. UNDGÅ UDSÆTTELSE FOR
STRÅLING.
ADVARSEL SYNLIG OG USYNLIG LASERSTRÅLING
NÅR DEKSEL ÅPNES. UNNGÅ
EKSPONERING FOR STRÅLEN.
VARNING SYNLIG OCH OSYNLIG LASERSTRÅLNING
NÄR DENNA DEL ÄR ÖPPNAD. BETRAKTA
EJ STRÅLEN.
VARO! AVATTAESSA OLET ALTTIINA NÄKYVÄLLE
JA NÄKYMÄTTÖMÄLLE LASER SÄ
TEILYLLE. ÄLÄ KATSO SÄTEESEEN.
VORSICHT SICHTBARE UND UNSICHTBARE
LASERSTRAHLUNG WENN ABDECKUNG
GEÖFFNET. NICHT DEM STRAHL
AUSSETSEN.
DANGER VISIBLE AND INVISIBLE LASER RADIATION
WHEN OPEN. AVOID DIRECT EXPOSURE
TO BEAM.
ATTENTION RAYONNEMENT LASER VISIBLE ET
INVISIBLE EN CAS D'OUVERTURE.
EXPOSITION DANGEREUSE AU FAISCEAU
DVD-S559
3