Table of Contents
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Service Manual
Model No.: HL40XP1
Chapter 9. Trouble shooting
9-1. Simple check
No picture/ No sound
Blank screen
No sound
Poor sound
No picture in some channel
No color for some channel
program (black and white)
Spots with some or all pictures
Horizontal/ vertical bars or picture
shaking
Television out of control
54
Verify if the television is properly plugged
Verify if the television is properly supplied power
Verify if electricity is available.
Verify if correct signals are input
Press INPUT button to change signal input to TV input
Restart the television of power supply is interrupted
Press Mute button and verify if Mute mode is set.
Switch to otger channel and verify if the same problem
happens.
Press VOL+ button to see of he problem can be
solved.
Verufy if sound system is correct .Refer to some
chapter for adjust.
Verify if correct channel is selected.
Adjust the antenna.
Make adjustments by Fine Tune and MANUAL Scan.
Verify if the same problem exists in other channels.
check out of picture and sound system.
Refer to relative instructions in the Manual for color
adjust.
Verify if the antennal is correctly connected.
Verify if the antennal is in good condition.
Check for local interference such as an electrical
appliance or power tool.
Disconnect the television from power supply and 10
seconds later, connect the television to the power
supply. If the problem still exists, contact authorized
after-sales service for technical assistance.
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