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PD-S507

1. SAFETY INFORMATION

This service manual is intended for qualified service technicians; it is not meant for the casual

do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been

trained to properly and safely repair complex products such as those covered by this manual.

Improperly performed repairs can adversely affect the safety and reliability of the product and may

void the warranty. If you are not qualified to perform the repair of this product properly and safely, you

should not risk trying to do so and refer the repair to a qualified service technician.

IMPORTANT

THIS PIONEER APPARATUS CONTAINS

LASER OF CLASS 1.

SERVICING OPERATION OF THE APPARATUS

S H O U L D B E D O N E B Y A S P E C I A L L Y

INSTRUCTED PERSON.

LASER DIODE CHARACTERISTICS

MAXIMUM OUTPUT POWER: 5 mw

WAVELENGTH: 780 – 785 nm

LABEL CHECK

MVXK type

MYXK type

REAR

Additional Laser Caution

1. Laser Interlock Mechanism

The position of the switch (S601) for detecting loading

state is detected by the system microprocessor, and the

design prevents laser diode oscillation when the switch

(S601) is not on CLMP terminal side (CLMP signal is OFF

or high level.). Thus, the interlock will no longer function if

the switch (S601) is deliberately set to CLMP terminal

side (low level).

The interlock also does not function in the test mode

Laser diode oscillation will continue, if pin 33 of

CXA1782CQ (IC151) on the MAIN BOARD ASSY is

connected to GND, or pin 22 of IC301(LDON) is

connected to low level (ON), or else the terminals of Q151

are shorted to each other (fault condition).

2. When the cover is opened with the servo mechanism

block removed and turned over, close viewing of the

objective lens with the naked eye will cause exposure to a

Class 1 laser beam.

∗

Refer to page 28.

∗