Yamaha cdx 497

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CDX-497/CDX-397 3 CDX-497/CDX-397 WARNING Laser Diode Properties Material: GaAlAs Wavelength: 780 nm Emission duration: continuous Laser output: max. 44.6 µW * * This output is the value measured at a distance of about 200 mm from the objective lens surface on the Optical Pick-up Block. Optical Pick-up 2) The laser power level can be adjusted with the VR on the pick-up PWB. However, this level has been set by the factory prior to shipping from the factory. Do not adjust this laser level control unless instruction is provided elsewhere in this manual. Adjustment of this control can increase the laser emission level from the device.