How to Troubleshoot a Panasonic TH-42PX60U

Written by patrick nelson
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How to Troubleshoot a Panasonic TH-42PX60U
You may want to explore other reception options like an external antenna. (tv antennas image by JoLin from

Panasonic's TH-42PX60U is a VIERA-branded 42-inch plasma HDTV (high-definition television). It features multiple tuners and an SD (Secure Digital) memory card slot for photo viewing. Problems with the TH-42PX60U can include issues with antennas, sound and picture, including white spots and interference that manifests itself as frozen channels. Problems like these can be corrected with some troubleshooting steps.

Skill level:

Things you need

  • SD card

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  1. 1

    Reposition the antenna if you use one and are seeing "snow" or shadow images on the screen. Digital signals are much less tolerant of imprecise antenna pointing than the older, and now unavailable, analogue signals. Check the position and connection of the antenna. Make slight adjustments to the antenna direction.

  2. 2

    Rescan the channels after making adjustments. Press "Menu" on the remote control and choose the "Setup" option on the TV screen. Select "Program Channel" and then "Auto." Choose "Antenna" at the "ANT IN" setting, then choose "All" for all channels including analogue, and then "OK" to start the scan. Allow the scan to complete.

  3. 3

    Check the signal meter within the set-up menu if image problems continue after scanning for channels. Freezing of channels on the screen can be an indication of a signal. If the signal intensity bar is low you may want to explore other reception options such as cable or a replacement external antenna.

  4. 4

    Verify that an input device such as a cable box or satellite receiver is properly connected to the television if you don't use an antenna. Check to ensure the connections are tight and in the appropriate input jacks. Make sure that the sound settings are correct on the television if you get a picture but no sound from the external source. The TV's speakers should not be set to off. From the set-up menu, choose "Audio" and then "Speakers" to check this.

  5. 5

    Change the screen's aspect ratio if the picture looks squashed or there are black bars on the top, bottom or sides of the picture. Some film releases aren't geared towards this television's screen size. Press the "Aspect" button repeatedly on the remote control to change the mode until the picture looks right.

  6. 6

    Perform a firmware update to the television if you experience further issues like "clay faces" or poor picture details. Download the firmware update from the Panasonic website to a newly formatted SD card (see Resources). Insert the SD card into the television. Follow the on-screen instructions to install the update.

Tips and warnings

  • An odd pixel or luminescent spot missing on plasma displays -- as opposed to "snow" -- can be the result of a manufacturing issue.

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