Pioneer PDV-20, Service Manual

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PDV-LC20, PDV-20
WARNING!
The AEL(accessible emission level) of the laser power output is less than CLASS 1
but the lasear component is capable of emitting radiation exceeding the limit for
CLASS 1.
A specially instructed person should do servicing operation of the apparatus.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replaced only with the same or equivalent type
recommended by the manufacture.
Discord used batteries according to the manufacture's
instructions.
LABEL CHECK
ZU/CA Type Only
ZU/CA Type Only
ZY Type Only
ZY and ZL Types Only
VRW1867
VRW1815
VRW1860
VRW-328
CERTIFICATION
THIS PRODUCT COMPLIES WITH DHHS RULES 21CFR, SUBCHAPTER J,
PART 1040 AT DATE OF MANUFACTURE.
This Class B digital apparatus complies with Canadian ICES-003. Cet appareil
numerique de la classe B est comforme a la norme NMB-003 du Canada.
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES.
OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS :
(1)THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND
(2)THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING
INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION.
LASER RADIATION WHEN OPEN,
AVOID LONG-TERM VIEWING OF
DIRECT LASER RADIATION.
< VRW1815 >
CAUTION
CAUTION :
VORSICHT :
ADVARSEL :
VARNING :
VARO! :
VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN.
AVOID EXPOSURE TO BEAM.
SICHTBARE UND UNSICHTBARE LASERSTRAHLUNG, WENN
ABDECKUNG GEÖFFNET NICHT DEM STRAHL AUSSETZEN!
SYNLIG OG USYNLIG LASERSTRÅLING VED ÅBNING UNDGÅ
UDSÆTTELSE FOR STRÀLING.
SYNLIG OCH OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR
ÖPPNAD BETRAKTA EJ STRÅLEN.
AVATTAESSA ALTISTUT NÄKYVÄ JA NÄKYMÄTTÖMÄLLE
LASERSATEIL YLLE. ÄLÄ KATSO SÄTEESEN.
VRW1860
VRW-328
LASER DIODE CHARACTERISTICS
FOR DVD : MAXIMUM OUTPUT POWER : 3.2 mW
WAVELENGTH : 650 nm
FOR CD : MAXIMUM OUTPUT POWER : 3.3 mW
WAVELENGTH : 780 nm
CAUTION :
LASER RADIATION WHEN OPEN, AVOID LONG-TERM
VIEWING OF DIRECT LASER RADIATION.
CAUTION :
USE OF CONTROLS OR ADJUSTMENTS OR PER-
FORMANCE OF PROCEDURES OTHER THAN THOSE
SPECIFIED HEREIN MAY RESULT IN HAZARDOUS
RADIATION EXPOSURE.
CAUTION :
TO PREVENT RISK OF ELECTRIC SHOCK AND LASER
EXPOSURE, DISCONNECT THE AC ADAPTER OR THE
BATTERY BEFORE REMOVE SCREWS.
Additional Laser Caution
1. Laser Interlock Mechanism
If the switches to detect door-open state (S603, S605: DISC
OPEN DET) are open, the laser interlock mechanism operates
and shuts down the power source (Q100) to the laser diode drive
circuit. The system microcomputer detects this condition and
does not issue the Laser On command.
If Q100 is defective, accompanying a short-circuit between the
emitter and the collector, the system microcomputer judges this
status as the door-open state, and it does not issue the Laser
On command as long as Q611 is not defective, even if S603 and
S605 are open.
Therefore, the laser does not light unless S603 and S605 are
intentionally short-circuited in door-open state.
To light the laser in Test mode, short-circuit S603 and S605.
Hold S603 and S605 in the depressed position from the top, as
they are push switch.
2. NEVER directly look at the objective lens from a short distance
when lighting the laser by short-circuiting S603 and S605 in door-
open state.