Pioneer DVR-660H-S Service Manual page 20

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LABEL CHECK
WARNING!
The laser component is capable of emitting radiation exceeding
the limit for CLASS 1. A specially instructed person should do
servicing operation of the apparatus.
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Laser Pickup specifications and
Laser characteristics
For CD
Wave length : 785 nm
Operating output :
Maximum output : Class1M
For DVD
Wave length : 660 nm
Operating output :
Maximum output : Class2M
1. The ON/OFF(ON:low level,OFF:high level) status of the
CLAMP signals for detecting the loading state are detected
by the drive CPUs, and the design prevents laser diode
oscillation when the CLAMP signal turns OFF.
In normal operation, if no disc is clamped, the laser diode
oscillation is disabled.
However, the interlock does not always operate in the
"LD Degration Judgment of ATA/ATAPI DEBUG OSD"
and "LD POWER ADJUSTMENT"*.
2. When the cover is opened, close viewing of the objective
lens with the naked eye will cause exposure to a Class 3A
laser beam.
* Refer to Pages 47 and 80.
DVR-660H-K
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Read mode : 1.07 mW (CW), Class1
Read mode : 1.08 mW, Class1
Write mode : 21.89 mW (Pulse), Class1M
Additional Laser Caution
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VRW2262
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