Panasonic TX-15TA1C Operating Instructions Manual

Panasonic TX-15TA1C Operating Instructions Manual Manual pdf 48 page image

48TROUBLE SHOOTING continuedWhen receiving TV programs (TV·EAV)When connected to a computer (PC)Symptom Check See pagesSpottiness on the screen orjittering picture• Noise (electrical or magnetic interference) from cars,trains, high-voltage lines, fluorescent lamps, etc.?• Are you receiving noise (interference) from acomputer? If the antenna lead runs close to acomputer, move it away a slight distance.–If the antenna cable is runningalongside the computer signal cables,separate by a small distance or run bya different route.The picture appears two-or threefold.• Is the antenna pointing in the correct direction?The direction may have been changed by strong winds.• Are you receiving signal reflections from mountains orbuildings?–11Channel number does notdisappear from the screen.• Has the ON SCREEN buyon been pressed?Press the key again.Vertical lines are distorted. • Vertical lines may appear distorted due to receptionchannel changes. However, this is not a malfunction. –No picture.• Power turned OFF?• Does the equipment connected to the Tuner functionproperly?Connect the signal cable correctly.129, 26 - 27Symptom Check See pagesVertical or horizontal stripepatterns appear.• Run VIDEO LEVEL AUTO (automatic video level setting)after automatic size adjustment.• If screen resolution is XGA (1024×768), set the clockPHASE so that no flickering of characters occurs.• Change the desktop pattern. (For details, refer to thecomputer instruction manual.)38, 4139–Image too large or too small,image position displaced, orpart of image missing ordiscolored.• Check the picture settings.• Refer to the computer instruction manual and set thedisplay mode to a different picture mode.36 - 37–Colour patterns appear orcolors disappear.• Reception disturbed by another TV set (interference)?Reception can possibly be improved by moving the TV toa different location. Interference may also be caused bynearby radio or amateur transmitters.–