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L05 User’s Manual 091105.1833
3
Before Calling Service
A list of common symptoms is presented as follows. Before you call for service, perform
these simple checks. Some of these symptoms can be readily corrected. Note: Please
become familiar with the commercial features as described in TV Installation / Setup,
because the effects of several of these features, if they are not thoroughly understood,
might appear as faulty operation.
Symptom Possible Corrective Action
TV does not respond to commands (volume,
channel, power), or cannot be turned on if it is off,
or cannot be turned off if it is on.
Check commercial TV setup (TV installation /
setup) menu settings, including power forced on,
front keypad lockout, channel ring, volume
minimum / maximum features.
TV turns off by itself
• TV automatically turns off after approx. 5
minutes when no RF signal is present.
• Check Energy Saving Programmability setting
(see ESP) in TV installation / setup.
Lack of color uniformity (color unevenness)
• Switch off the TV using the mains power
button. Wait approximately 20 minutes before
switching on again.
• Ensure that the TV is not placed near speakers
or magnetic objects.
No power
Verify that the TV’s AC power cord is plugged into
the mains socket. If there is still no power,
disconnect plug. Wait for 60 seconds and re-insert
plug. Switch on the TV again.
No picture
• Check antenna connection at rear of the TV.
• Check CABLE TUNING setting (NO / YES).
• Possible TV station problem. Try another
channel.
Picture ok, no sound.
• Try increasing the volume.
• Check that the sound is not muted. If it is
muted, press the Mute button on the remote
control to restore sound.
• Check the MIN VOLUME/ MAX VOLUME
settings in the setup menu
Sound ok, but poor color or no picture Check picture adjustments (brightness, contrast,
color, tint).
Snowy / noisy picture
• Check antenna, cable, and/or set-top box
connections and antenna / cable.
• Possible electrical interference from appliances
or other sources.
Double images / “ghost” images Check antenna, cable and/or set-top box.
Television does not respond to remote control.
• Check batteries.
• Aim remote control handset directly at remote
control sensor lens on the TV.
Channel Change to digital channels is slow Channels must be programmed in the Digital OSD
menu for the shortest channel change time.
Note: These televisions are shipped in commercial mode with Digital OSD turned ON. If is
pressed while on a digital channel the television will display the digital menu instead of the
commercial menu. To properly configure the television using the commercial menu, it is necessary to
be on an analog channel to access the setup m
enu.