4T-B70CJ1 TROUBLE SHOOTING 4 - 25
CHAPTER 4.TROUBLESHOOTING TABLE
1. HOWTORESPONDBYTROUBLESYMPTOM(INCASEOFNON-DEFECTIVEMODE)
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Check if you pressed POWER on the remote controlunit.
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Is the AC corddisconnected?
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Has the power been turnedon?
- External influences such as lightning, static electricity, may cause
improper operation.
In this case, operate the unit after first turning off the power of the TV or
unplugging the AC cord and replugging it in after 1 or 2 minutes.
Remote control unit does not
operate.
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Are batteries inserted with polarity (+, -)aligned?
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Are batteries worn out? (Replace with newbatteries.)
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Are you using it under strong or fluorescentlighting?
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Is a fluorescent light illuminated near the remote controlsensor?
Picture is cut off/with sidebar
screen.
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Is the image positioncorrect?
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Are screen mode adjustments such as picture size madecorrectly?
Strange color, light color, or color
misalignment
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Adjust the picturetone.
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Is the room too bright? The picture may look dark in a room that is
toobright.
Power is suddenly turned off.
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Is the sleep timerset?
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Check the power controlsettings.
-
The unit's internal temperature has increased. Remove any objects
blocking vent orclean.
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Is connection to other componentscorrect?
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Is the correct inputselected?
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If the PC image is not displayed, check thefollowing:
When connecting a laptop PC to the TV, check that display output mode
of the PC is set to external TV.
Check the resolution setting on the PC. Is a non-compatible signal being
input?
Picture quality of HD videos is
poor.
-
To enjoy HD images from external equipment, you are required
to set up HDMI connection or componentconnection.
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If the Video source is not of HD quality, HD images cannot be
displayed. Check thatthe Video source you are viewing provides
HDimages.
-
The HD cable/satellite set-top box may need to be configured to
output HD imagesviacable/satellite.
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