Troubleshooting - Changhong Electric PT4216 Operation Manual

TROUBLESHOOTING

Before calling a technician, please check the following items to see whether you can easily
diagnose and fix the encountered symptoms on your own.
Symptoms
No picture, no
sound, and no
indicator light on
No picture, no
sound, but the
green light
indicator
Picture and sound
with abnormity
Picture is spotted
or with snow
Blue background in
AV mode
Picture is unclear,
or moves or have
black stripes on
horizontal position
in PC mode
PC Picture is not in
the middle of the
screen
No sound
The remote control
does not work
Colors of PC
Picture on display
are improper
PT4216
Possible Reasons
1.The power cord is not plugged in
2.The power is off
1.Contrast, sharpness,
volume are all in the minimum value or
TV is in mute mode
2.PC has no signal in PC mode
3.The signal cord is not correctly
connected
1.Contrast, sharpness, and color are
set improperly
2.Color system is set improperly
3.Sound system is set improperly
Signal source is low-grade or the signal
cord is in a lower quality
No Video signal or the signal cord is
improperly/not connected
Picture is not well adjusted
Picture is not well adjusted
No Audio signal or the signal cord is
improperly/not connected
Batteries are improperly installed or
exhausted
The user made the wrong Color Temp
adjustment
PT5016
1.Plug the power cord in
2.Turn the power on
color and
1.
sharpness, color and volume
2.Press any button or input PC signal
3.Connect the signal cord correctly
1.Adjust
sharpness, and color
2.Set the Color system to the country
broadcasting standard
3.Set the Sound system to the country
broadcasting standard
Use the qualified signal cord
Connect the signal cord properly
Adjust automatically by selecting Auto
Adjust or adjust Clock and Phase
manually after enter into the PC Setting
menu to solve this problem
Adjust pictures automatically by
resetting H Position、V Position、
Phase and Clock
1.Connect
properly
2.Set the sound system properly
1.Make sure the positive and the
negative polarities are correct.
2.Check if there is a loose contact
between the springs and the batteries
3.Replace the batteries
Readjust the Color Temperature
PAGE 21
Correction
Alter the value of
the value of
the audio
contrast,
Contrast,
signal cord