Sharp M20X PG-M20X Operation Manual - Page 79
Troubleshooting
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UPC - 074000358355
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Page 79 highlights
Troubleshooting Problem No picture and no sound Check • Projector power cord is not plugged into the wall outlet. • Power to the external connected devices is off. • The selected input mode is wrong. • Cables incorrectly connected to side panel of the projector. • Remote control batteries have run out. • External output has not been set when connecting notebook computer. • The AV MUTE display appears. • Cables incorrectly connected to the side panel of the projector. • "Bright" is set to minimum position. Page 20 - 29 21-26 13 - 30 21-26 40 Sound is heard but no picture appears Color is faded or poor Picture is blurred; noise appears • Picture adjustments are incorrectly set. (Video Input only) • Video input system is incorrectly set. (INPUT 1 only) • Input signal type RGB/Component is incorrectly set. • Adjust the focus. • The projection distance exceeds the focus range. (Computer Input only) • Perform "Fine Sync" Adjustments ("Clock" Adjustment) • Perform "Fine Sync" Adjustments ("Phase" Adjustment) • Noise will appear depending on the computer. • The "DNR" (Digital Noise Reduction) setting is not correct. • Cables incorrectly connected to side panel of projector. • Volume is set to minimum. 40 55 40 31 17-18 42·44 42 - 54 21-26 29 Picture appears but no sound is heard An unusual sound is • If the picture is normal, the sound is due to cabinet shrinkage - occasionally heard caused by a room temperature changes. This will not affect from the cabinet operation or performance. Maintenance • See "Maintenance Indicators". 70 indicator illuminates Image cannot be captured • The signal in INPUT 1 is not an analog RGB/Digital RGB XGA (1024 × 768) signal. Images cannot be captured if the signals are different from the above. 56 • The signal in INPUT 1 is set to a resolution that exceeds SXGA. Pict in Pict does not work • The signal in INPUT 1 is sending Component signals 480I, 480P, 720P, or 1080I. 51 • The signal in INPUT 1 is set to interlace mode using RGB signals. -76
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