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72 Care and Maintenance, Specifications
Care and Maintenance
Cleaning the DVD/VCR
• Wipe the front panel and other exterior surfaces of the DVD/VCR with a soft,
slightly damp cloth.
• Never use a solvent, thinner, benzene, or alcohol to clean the DVD/VCR. Do not
spray insecticide liquid near the DVD/VCR. Such chemicals may discolor the surface
or damage the DVD/VCR.
Cleaning a Disc
• Use a soft, dry cloth to wipe the Disc.
• Wipe the Disc in a straight line from the center to the edge. Never wipe the Disc
in a circular motion.
• Do not use detergent or abrasive cleaning agents.
• Handle the Discs so fingerprints and dust do not adhere to the Discs.
• Always store the Disc in its protective case when it is not in use.
Checking the Laser
• If the DVD/VCR does not operate as described in this manual, the DVD Player’s
laser may be dirty. Consult an Authorized Service Center for inspection and clean-
ing of the laser.
Caring for Video Cassettes
• Use only cassettes with the mark.
• Remove any light adhesive stick-on notes from the video cassette before putting the
cassette in the VCR. Removable labels can jam the VCR.
Caring for the VCR’s Video Heads
• Periodic maintenance is required to maintain your DVD/VCR’s excellent perfor-
mance. The VCR has an Automatic Head Cleaner. However, the video heads will
require replacement eventually. Only an authorized service center should perform
this service.
Specifications
Video Heads
Four heads - Hi-Fi
Antenna
VHF/UHF – 75 ohm
external antenna terminal
VHF Output Signal
Channel 03 or 04 (switchable)
75 ohms unbalanced
Color System
NTSC
Frequency Response
DVD (linear sound):
20 Hz to 22 kHz (sample rate: 48 kHz)
20 Hz to 44 kHz (sample rate: 96 kHz)
Audio CD: 20 Hz to 20 kHz
Signal-to-Noise Ratio
Audio CD: 110 dB JEITA
(Japan Electronics and Information
Technology Industries Association)
Dynamic Range
DVD (linear sound): 95 dB
Audio CD: 94 dB (JEITA)
Total Distortion Factor
Audio CD: 0.007% (JEITA)
Wow and Flutter
Below the measurement limitation
(±0.001% W PEAK) (JEITA)
Power Requirement
120V AC +/- 10%, 60 Hz +/- 0.5%
Power Consumption
Power on: 30 W
Power off: 7 W
Operating Temperature
41°F (5°C) to 104°F (40°C)
Relative Humidity
30% to 80%
Dimensions
17-1/8” (W) x 3-7/8” (H) x 11-9/16” (D)
(435mm x 99mm x 293mm)
Weight
11.0 lbs. (5.0 kg.)
NOTE: Designs and specifications are sub-
ject to change without notice.
DVD740VR 4/12/02 12:09 PM Page 72