Sharp LC-20S4U-S LC-20S4U-S Operation Manual - Page 39

Troubleshooting (Continued) Antenna Problem The picture is not sharp. The picture moves. The picture is doubled or tripled. The picture is spotted. There are stripes on the screen or colors fade. Check item • The reception may be weak. • The quality of the broadcast may also be bad. • Make sure the antenna is facing the right direction. • Make sure the outside antenna is connected. • Make sure the antenna is facing the right direction. • There may be reflected electric waves from mountains or buildings. • There may be interference from automobiles, trains, high voltage lines, neon lights, etc. • There may be interference between the antenna cable and AC cord. Try positioning them further apart. • Is the unit receiving interference from other devices? Transmission antennas of radio broadcasting stations, transmission antennas of amateur radios and cellular phones may also cause interference. • Use the unit as far apart as possible from devices that may cause possible interference. ■ Cautions regarding use in high and low temperature environments • When the unit is used in a low temperature space (e.g. room, office), the picture may leave trails or appear slightly delayed. This is not a malfunction, and the unit will recover when the temperature returns to normal. • Do not leave the unit in a hot or cold location. Also, do not leave the unit in a location exposed to direct sunlight or near a heater, as this may cause the cabinet to deform and the LCD panel to malfunction. Storage temperature: -4°F to +140°F (-20°C to +60°C) Specifications Items Model LC-20S4U LCD panel Number of dots Video color systems TV Standard (CCIR) TV function TV Tuning System STEREO CATV Y/C FILTER Brightness Lamp life (Fluorescent lamp) Viewing angles Audio amplifier Speakers INPUT1 INPUT2 Terminals INPUT3/OUTPUT Antenna Headphone OSD language Power supply Power consumption Weight 20" Advanced Super View & BLACK TFT LCD 921,600 dots VGA N358, N443, PAL, PAL-M, PAL-N, SECAM, PAL-60 NTSC/PAL-M/PAL-N PLL 181 ch. MTS+SAP 125 ch. 3D Y/C FILTER 450 cd/m2 60,000 hours* H: 170° V: 170° 2.1 W × 2 1 37/64 × 4 21/64 in. (4 × 11cm), 2 pcs. AUDIO-IN, COMPONENT-IN AUDIO-IN, VIDEO-IN, S-VIDEO-IN AUDIO-IN, VIDEO-IN / AUDIO-OUT, VIDEO-OUT F-Type Mini-jack for stereo (ø3.5 mm) English/Spanish/French DC 12V, AC 110-240V, 50/60Hz (AC adapter), AC 110-125V (AC cord) 73 W (0.15 W standby): AC 120V 63 W: DC 12V 15.2 lbs. (6.9 kg) w/o accessories * Typical time for power output decrease of about one-half assuming continuous use in a room with normal lighting, normal brightness and temperature at 77°F/25°C Dimensional Drawings • The dimensional drawings for each model are shown on the inside back cover. ■ As a part of policy of continuous improvement, SHARP reserves the right to make design and specification changes for product improvement without prior notice. The performance specification figures indicated are nominal values of production units. There may be some deviations from these values in individual units. 38