Laser Product - Pioneer PD-P920M Service Manual

PD-PS20NMi
(FOR EUROPEAN MODEL ONLY)
SERVICING OPERATION OF THE APPARATUS
SHOULD BE DONE BY A SPECIALLY
INSTRUCTED PERSON.
LASER DIODE CHARACTERISTICS ey
MAXIMUM OUTPUT POWER: 5 mw
WAVELENGTH: 780-785 nm
LABEL CHECK (MULTI MAGAZINE type) gemxys type ABXUS type
CAUTION
INVISIBLE LASER
RADIATION WHEN OPEN,
AVOID. EXPOSURE :
TO BEAM PRW1018
AEMXJS type
_—RDVARSEL
USYNLIG LASERSIRALING VED ABNING NAR SIKKERHED SAF-
BRYOERE €R UDE AF FUNKTION.
UNDGA UDSATTELSE FOR STRALING.
VARO!
Avattaessa ja suojalukitus onitetta-
essa olet alttiina nakymattémille
lasersateilylle. Al& katso sateeseen.
VARNING!
Osynlig laserstrdlning nar denna del
ar Oppnad och sparren "dr urkopplad.
= Betrakta ej} stralen. PRWI23
VORSICHT!
UNSICHTBARE LASER-STRAHLUNG TRITT AUS, WENN DECKEL
{ODER KLAPPE) GEGFENET IST! NICHT DEM STRAHL AUSSE TZEN!
; VRW1094
Additional Laser Caution
1, Laser Interlock Mechanism
The ON/OFF (ON: low level, OFF : high level) status of the
LPS1 (S601) and LPS2 (S602) switches for detecting the
loading state is detected by the system microprocessor,
and the design prevents laser diode oscillation when both
switches LPS1 and LPS2 are not ON (low level)(clamped
state).
Thus, interlock will no longer function if switches LPS1
(S601) and LPS2 (S602) are deliberately shorted.
Also, in the test mode *, the interlock mechanism does not
operate too.
Laser diode oscillation will continue if pins 2 and 3 of
CXA1471S (C101) are connected to ground or pin 20 is
connected to high level (ON) or the terminals of Q101 are
shorted to each other (fault condition). ;
2. When the cover is opened with the servo mechanism.
block removed to be turned over, close. viewing of the
objective lens with the naked eyé will;cause exposure to a
Class 1 laser beam... a
*: Refer to page 30:
CLASS 1
LASER PRODUCT
VRW-328
AEMXJS type,
ABXUS types
AEMXJS type,
ABXJS types