L05 User’s Manual | 091105.1833 |
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, | Check commercial TV setup (TV installation / |
channel, power), or cannot be turned on if it is off, | setup) menu settings, including power forced on, |
or cannot be turned off if it is 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 |
| 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 |
| connections and antenna / cable. |
| ∙ Possible electrical interference from appliances |
| or other sources. |
Double images / “ghost” images | Check antenna, cable and/or |
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 menu.
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