Curtis LCDVD2471A - Manuel (Page 24)

44
TROUBLESHOOTING
Attempt the following steps to diagnose the symptom you have seen. If the
symptom couldn’t be corrected, please contact the dealer.
The Symptom of Trouble
Possible causes Correct measures Symptom
There are spots on the
screen, and the sound
is not clear when you
watch TV.
The picture is doubled
or tripled,
but sound is good.
Disturb Intermittent
No picture & No sound
1. The antenna cables may be
disconnected.
2. The antenna cables may be
disconnected or cankered.
3. The antenna cables may be
weak.
4. The weather is bad.
5. The transmitter is wrong.
1. The antenna cables may be
weak.
2. The television could not
tune correctly.
3. The weather is bad
4. The transmitter is wrong.
5. Television input incorrectly.
Your unit is being affected by
other television, automobiles,
fluorescent lamps,
portable radio.
1. Television is under AV mode.
2. The picture and volume are
set to minimum.
3. The television is under sleep
mode or electricity-saving mode.
1. Connect antenna cables
again or change the plug.
2. Connect antenna cables
again or change new cables.
3. Adjust antenna again.
4. There is no need to correct.
5. Check with local operator.
1. Adjust antenna again.
2. Search channels again or
adjust television.
3. There is no need to correct.
4. Check with local operator.
5. Check the outside devices.
Check the shield contains of
television and put the
television as far away as
possible through cables.
1. Check the picture/sound
control (enter main menu).
2. Make sure power in on.
NOTE : Consumer should not repair by yourself, high-voltage is in unit, please
request professional technician to help.
APPENDIX
45
APPENDIX
TROUBLESHOOTING
Non-defect Judgment
Attempt the following steps to diagnose the symptom you have seen. If the
symptom couldn’t be corrected, please contact the dealer.
Check Parts Phenomena
The display monitor's
panel goes hot.
Unusual dots
Stripes on screen
Flicker fluctuate
(only in PC source)
The top of the monitor
gets hot.
LCD TV takes inside lighten phosphor. It may increase the
temperature of the screen in some occasions. It's not a defect.
Black dots and Bright points may appear on the LCD screen.
This is a structural property of the LCD panel and is not a defect.
Adjust the impulse phase may decrease stripes.（RGB in）
1.Frequency from PC is below 75Hz, enhance it.
But the picture may be less bright.
2.Turn on the upright filter. But it may descend
the upright resolution.
It may occur during long-time working. It's not a defect.