Denon DVD-2910 Service Manual
Also see for DVD-2910: Operating instructionsSpecificationsSupplementary guideOperating instructionsService manual
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13DVD-2910/955LD (DVD)+5V-A2Oscilloscope4.1. DVD Laser current measurement(1) Connect the oscilloscope to +5V-A2 of test point forGND side and LD (DVD) of test point for signal side.(2) Playback the multilayer track 1 of the DVD Test Disc.(3) Measure the voltage between +5V-A2 and LD (DVD),calculate Iop by the formula as shown below.4.2. CD Laser current measurement(1) Connect the oscilloscope to +5V-A2 of test point forGND side and LD (CD) of test point for signal side.(2) Playback the track 1 of the CD Test Disc.(3) Measure the voltage between +5V-A2 and LD (CD), cal-culate Iop by the formula as shown below.LD (DVD)+5V-A2OscilloscopeIop Measurement Voltage Value14 (Resistance value)-----------------------------------------------------------------------------=Iop Measurement Voltage Value11.75 (Resistance value)-----------------------------------------------------------------------------=LD(DVD) LD(CD) +5V-A2Main Unit foil side |
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