JVC DLA-QX1G Instruction Manual - Page 53
Troubleshooting
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Troubleshooting Solutions to common problems related to your projector are described here. If none of the solutions presented here solves the problem, unplug the projector and consult your dealer. Symptom Power is not supplied. Light is not emitted, or light level is low. With power on, operation starts but stops in a few minutes. Video image does not appear. Video image dims. Video image is unstable. Video image is abnormally dark or bright. Image color is poor or image is disturbed. Probable cause • Is the power cord disconnected? • Is the MAIN POWER switch turned on? • Is the correct power voltage used? • Has the breakertripped open? • Has the lamp protective function activated? (This can occur if the power is shut down due to a power failure, etc.) • Is the lens cap removed? • Is the internal shutter closed? • Is the lamp life near its end? • Has the projector been moved from its installed place? • Is the intake or exhaust vents blocked? • Is the correct input selected? • Are the devices connected correctly? • Are signals being supplied from the connected devices? • Are input signals (scanning frequency, etc.) appropriate? • Is brightness adjusted correctly? • Is focus adjusted correctly? • Is distance too short or too long? • Are Tracking and Phase adjusted correctly? • Is Brightness adjusted correctly? • Is the correct Clamp selected? • Is picture quality (color density, etc.) adjusted correctly? • Are signals (scanning frequency, etc.) from connected devices appropriate? • Are specifications of the signal being input matching those of the VIC? • Is the input cable connected correctly? Corrective action • Insert the power cord (plug) firmly. • Turn on the MAIN POWER switch. • Check that AC 200V to 240V is supplied. • Check that the breaker is closed. Make sure of the capacity of the breaker. • Wait until the lamp has cooled down. (Turn on the main power and let the fans cool the lamp.) About 10 minutes later, press the remote control unit's OPERATE button. • Remove the lens cap. • Open the internal shutter by pressing the remote control unit's SHUTTER OFF button. • Check the lamp use time on the menu, and if the lamp life is near its end, consult your dealer to arrange for a replacement lamp. • Check the installed position. • Turn off the MAIN POWER switch, remove any blocking objects, and turn on the MAIN POWER switch again. • Select the correct inputs with VIC SELECT (or VIC) 1,2, and 3 buttons. • Connect the devices correctly. • Set connected devices correctly. • Check if the signal is correct as input (scanning frequency, etc.). Input the appropriate signal. • Adjust brightness on the menu. • Adjust focus with the remote control unit's FOCUS +/- buttons. • Set the projector at the correct distance. • Adjust Tracking and Phase on the menu. • Adjust picture quality on the menu. • Select the correct Clamp on the menu. • Adjust picture quality on the menu. • Check if the signal is appropriate (scanning frequency, etc.), and input the appropriate signal. • Check specifications of both signal being input and VIC. • Check cable connections. Page 31 32 ---- ---- ---- 31 36 44 ---- 17 to 19, 32 34 26 to 29 ---- 25 44 35 21 45 44 45 44, 45 25 ---- 26 to 29 ENGLISH 51