Akai LTA-32N658HCP, Service Manual, Page: 42 / 58

Symptoms Possible Reason Solutions
No picture, no sound, and no
indicator light on 1.The power cord is not plugged in
2.The power is off 1.Plug the power cord in
2.Turn the power on
Picture and sound with
abnormity
1.Contrast, sharpness, and color
are set improperly
2.Color system is set improperly
3.Sound system is set improperly
1.Adjust the value of
Contrast, sharpness, and
color
2.Set the Color system to the
country broadcasting
standard
3.Set the Sound system to
the country broadcasting
standard
Picture is spotted or with
snow Signal source is low-grade or the
signal cord is in a lower quality
Use the qualified signal cord
Contrast, brightness, color and
volume are all in the minimum
value or TV is in mute mode. Adjust the value of
contrast, brightness, color
and volume
No picture, no sound and
indicator light is green
The signal cable is not correctly
connected. Connect the signal cable
correctly
Blue screen, AV or SVIDEO
is displayed
There is no signal input or the
video cable is not connected or
incorrectly connected
Connect the video cable
correctly
Picture is unclear or shaking
or with black horizontal strips
(in VGA mode)
VGA picture is not centered
VGA picture is not correctly
adjusted.
Enter into “SETUP” menu,
select “Auto Tracking” item to
perform automatic calibration
and adjust “Phase” to solve
the problem
No sound
There is no audio signal input or
audio cable is not connected
correctly
Connect the audio cable
correctly
VGA picture display with
improper color The color temp is adjusted
incorrectly by user
Readjust the color temp, or
select the original color
setting
HDMI source, with snow
pixel of full screen The source generate is not
standard
Plug the HDMI cable again
The remote control does not
work Batteries are improperly installed
or exhausted
1.Make sure the positive and
the negative polarities are
correct.
2.Check if there is a loose
contact between the
batteries and the springs
3.Replace the batteries
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