3
PD-D9MK2-K
5
6
7
8
5
6
7
8
A
B
C
D
E
F
WAR
N
I
N
G !
THE AEL (ACCESSIBLE EMISSIO
N
LE
V
EL) OF THE LASER POWER OUTPUT IS LESS THA
N
CLASS 1
BUT THE LASER COMPO
N
E
N
T IS CAPABLE OF EMITTI
N
G RADIATIO
N
EXCEEDI
N
G THE LIMIT FOR
CLASS 1.
A SPECIALLY I
N
STRUCTED PERSO
N
SHOULD DO SER
V
ICI
N
G OPERATIO
N
OF THE APPARATUS.
LASER DIODE CHARACTERISTICS
FOR CD
: MAXIMUM OUTPUT POWER : 7 mW
WA
V
ELE
N
GTH : 7
8
0 nm
FOR SACD : MAXIMUM OUTPUT POWER : 5 mW
WA
V
ELE
N
GTH : 650 nm)
Additional Laser Caution
1. Laser Interlock Mechanism
• Loading switch (S101 on the LOAB Assy) is used for interlock
mechanism of the laser.
When this switch turned O
N
in SW2 (CLOSE) side (OPE
N
signal is
0
V
and CLOSE signal is 3.5
V
), a laser becomes the status which can
completely
oscillation.
Furthermore, the laser completely oscillates in the disc judgment and
disc
playback.
When player is power O
N
state and laser diode is not completely
oscillating,
7
8
0nm laser diode is always oscillating by half power.
• Laser diode is driving with Q307 (650nm LD) and Q30
8
(7
8
0nm LD)
on the D
V
DM Assy.
Therefore, when short-circuit between the emitter and collector of these
transistors or the base voltage is supplied for transistors turn on, the
laser oscillates. (failure mode)
• In the test mode
∗
, there is the mode that the laser oscillates except
for the disc judgment and playback. LD O
N
mode in the test mode
oscillates with the laser forcibly.
The interlock mechanism mentioned above becomes invalid in this
mode.
2. When the cover is open, close viewing through the objective lens with
the naked eye will cause exposure to the laser beam.
LABEL CHECK
SYXJ5, CUXJ types : PRW160
8
(Printed on the Rear Panel )
∗
: Refer to page 3
8
.
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