D-844K Sony Car Discman
(420-5057)                 Specifications             Faxback Doc. # 31572

System:...................................Compact disc digital audio system
Laser diode properties:
   Material:.........................................................GaAIAs
   Wavelength:..............................................symbol = 780 nm
   Emission duration:............................................Continuous
   Laser output power:................................Less than 44.6microW*
                                       *  This output is the value measured
                                           at a distance of 200 mm from the
                                      objective lens subject on the optical
                                          pick-up block with 7 mm aperture.
Error correction:......................Sony Super Strategy Cross Interleave
                                                          Reed Solomon Code
D-A conversion:..............................1-bit quartz time-axis control
Frequency response:........20-20,000 Hz +1 -2 dB (measured by EIAJ  CP-307)
Output (at 4.5 V input level):
   Headphones (stereo minijack):................ - 20 mW + 20 mW at 16 Ohms
   Line output (stereo minijack):.....Output level 0.75 V rms at 47 kilohms
                                            Recommended load impedance over
                                                                 10 kilohms

General

Sony BP-DM10 rechargeable battery:.................2.4 V DC, Ni-Cd, 650 mAh
Two LR6 (size AA) batteries:.........................................3 V DC
C power adaptor (DC IN 4.5 V jack):........220 - 230 V, 50 Hz (European and
                                                               Asian model)
                                       120 V, 60 Hz (USA, Canadian, Central
                                                  and South American model)
                                      110 - 240 V, 50/60 Hz (Middle Eastern
                                                                     model)
                                    40 V, 50 Hz (U.K. and Australian model)
                                     100 - 240 V, 50/60 Hz (Model for other
                                                                 countries)
Car battery (DC IN 4.5 V jack):....................................4.5 V DC
Dimensions (w/h/d)
(incl. projecting parts and controls):........Approx. 140 x 33.3 x 166.5 mm
                                               (5 5/8 x 1 5/16 x 6 5/8 in.)
Mass (excl. rechargeable batteries):
   D-840K/D-842K:.................................Approx. 295.5 g (10.4 oz)
   D-844K:............................................Approx. 313 g (11 oz)
Operating temperature:.............5 degrees C - 35 degrees C (41 degrees F
                                                            - 95 degrees F)

Design and specifications are subject to change without notice.


(LB/EB 3/27/96)