Yamaha CDR-D651 Service Manual page 3

PROTECTION OF EYES FROM LASER BEAM DURING SERVICING
This set employs a laser. Therefore, be sure to carefully
follow the instructions below when servicing .
1. Laser Diode Properties
CD (Drive A)
Material : GaAlAs
Wavelength : 790 nm
Emission Duration : Continuous
: max. 180 µW*
Laser Output
ANSI Class : Class 1
CDR (Drive B)
Material : GaAlAs
Wavelength : 790 nm
Emission Duration : Pulse
Laser Output : Write mode: max. 10 mW* (Duty 50%)
ANSI Class : Class 2
* This output is the value measured at a distance of
about 200 mm from the objective lens surface on the
Optical Pick-up Block.
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.
B, G, R models
ANALOG
LINE IN LINE OUT
4 3
L
R
REC PLAY
DIGITAL
IN OUT
OPTICAL
L
R
2. When checking the laser diode emission, keep your
eyes more than 30 cm away from the objective lens.
A, B, G, R models
CDR-D651
2