Useful Information

Useful Information

Auto power off

The TV will automatically turn off after approximately 15 minutes if it is tuned to a vacant channel or a station that completes its broadcast for the day and stops broadcasting on that channel. This feature does not work in video input mode.

Understanding the Power Return feature

If the power is cut off while you are viewing the TV and the power is resupplied, the Power Return feature will turn the TV on automatically.

If the power is going to be off for a long time or you are going to be away from the TV for a long time, unplug the power cord from the wall outlet to prevent the TV from turning on in your absence.

Troubleshooting

Before calling a service technician, please check the following table for a possible cause of the symptom and some solutions.

 

Symptom

Solution

 

 

 

 

 

Black box on screen

Select OFF in the Closed Caption menu to turn off the Closed

 

 

 

Caption Text mode.

 

 

 

 

TV will not turn on

Make sure the power cord is plugged in, then press POWER .

 

 

The remote control batteries may be dead. Replace the

 

 

 

batteries.

 

 

 

 

 

No picture, no sound

Check the antenna/cable connections.

 

 

 

 

No sound, picture OK

The sound may be muted. Press VOL /.

 

 

The station may have broadcast difficulties. Try another

 

 

 

channel.

 

 

The Audio source feature may be in SAP mode. Select STR

 

 

 

or MONO in the AUDIO SOURCE menu.

 

 

 

 

 

Poor sound, picture OK

The station may have broadcast difficulties. Try another

 

 

 

channel.

 

 

The Audio source feature may be in SAP mode. Select STR

 

 

 

or MONO in the AUDIO SOURCE menu.

 

 

 

 

 

Poor picture, sound OK

Check the antenna connections.

 

 

The station may have broadcast difficulties. Try another

 

 

 

channel.

 

 

Adjust the VIDEO menu.

 

 

 

 

 

Picture and sound are out of sync

As with all products that contain a digital display, in rare

 

 

 

instances, when viewing certain content (e.g., television

 

 

 

broadcasts, video games, DVDs), you may notice that the

 

 

 

sound and picture are slightly out of sync. This phenomenon

 

 

 

can be caused by various factors including, without limitation,

 

 

 

video processing within the TV, video processing in an

 

 

 

attached gaming system, and video processing/different

 

 

 

compression rates used by broadcasters in their program-

 

 

 

ming. You may want to try one or more of the following

 

 

 

suggestions, which may help to reduce the effect of this

 

 

 

phenomenon:

 

 

 

If the TV is connected to an A/V receiver that has a

 

 

 

programmable audio delay feature, use this feature to help

 

 

 

synchronize the sound to the picture.

 

 

 

If you notice this phenomenon only on certain TV chan

 

 

 

nels, please contact your local broadcast, cable, or

 

 

 

satellite provider to inform them of this issue.

 

 

 

 

 

Poor reception of broadcast channels

The station may have broadcast difficulties. Try another

 

 

 

channel.

 

 

Check the antenna connections.

 

 

If you are using a video input, make sure the INPUTS button

 

 

 

is set correctly.

 

 

 

 

 

Cannot receive above channel 13

Make sure the AIR/CABLE feature in the SETUP menu is set

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to “CABLE.”

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Hitachi 50HDA39 Useful Information, Auto power off, Understanding the Power Return feature, Troubleshooting