Question about Panasonic Viera TH-42PZ85U 42 in. Plasma TV

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I have a problem with direct tv. It now says Channel not available (no signal).

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The direct tv box is the problems and the causes.Unplug,replug the direct tv box about an hour later for the box to reboot and upgraded it software.The direct tv signal should be back.If still not getting a signal for channels,the direct tv box have problems.Call the direct tv customer service,exchange for a new direct tv box.Should solved ur problems.

Posted on Mar 19, 2011

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Posted on Jan 02, 2017

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SOURCE: When I turn on the tv, I get the Direct tv signal

big red
go to the menu setup satelite go to check signal strengh if it reads les than 95 % check all your connections might be a loose wire

Posted on Oct 24, 2009

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The RCA BD20TF10 was manufactured before digital tuners (ATSC) were required. It only has an analog (NTSC) tuner so you will need a digital to analog converter box to watch most local channels. (These were the boxes available with the discount coupon as the ATSC broadcast transmitters were enabled.) Depending on the converter box model, use either the composite video input or use the RF antenna connection. If you use the RF output from the converter, you will need to set the TV to channel 3 or 4 (set the switch on the box to match). Then follow the directions for searching for channels with the converter box.

You may be able to find a low power analog station still broadcasting. However, you'd need to be close to the transmitter or have an antenna that is rated for a long-range signals. (Usually this will need to be an outdoor antenna with few obstructions between the transmitter and the antenna.) To scan for any available NTSC channels, make sure that the TV is set to TV mode. Then press Menu. Use the Up/Down arrows to highlight Channels and press OK. Select Auto Channel Search and press OK. You may need to confirm this step by highlighting the Start Search option and pressing OK. This will also let you add the appropriate channel for watching the signal from the converter box with the RF cable. The manual for this TV is available from Sears Parts Direct here: http://www.searspartsdirect.com/partsdirect/user-manuals/BD20TF10-Rca-Parts-Television-Parts-manual . The direct link to the manual is http://c.searspartsdirect.com/mmh/pd_download/lis_pdf/OWNM/L0312126.pdf .

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If you are receiving a "No Signal" error message, verify that:
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  2. The input device is turned on.
Your TV needs to scan for channels before it can show programming from an antenna, from cable TV when the cable comes directly from the wall (no cable box), or from a cable or satellite box connected to the TV with a coaxial (RF) cable. Do not scan for channels if you have a cable or satellite box connected using AV (Composite), Component, or HDMI cables. The box selects the channel, not the tuner inside your television. If you are not using the "TV" input, press the INPUT button on your remote until the correct input mode is selected.
To perform a channel scan using the coaxial input:
  1. Press the INPUT button on your remote to view your current input source. The TV (coaxial cable) input must be selected. This may appear as "TV," "ANT," or the channel and call letters of a station.
  2. If the TV input is not selected, press INPUT until the TV input mode is selected.
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  6. When the search reaches 100% complete, exit to the menu.
  7. Check the available channels:
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If this does not resolve the issue, power cycle the TV and then re-run the channel scan:
  1. Turn off the TV.
  2. Unplug the TV from the electrical outlet.
  3. While the TV is unplugged from the wall, press and hold the Power button on the TV for 30 seconds.
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  5. Plug the TV back into the electrical outlet.
  6. Turn on the TV.
Note: There is also an option to reset the TV to the factory default settings. This option is in either the SETUP or SYSTEM section of the on-screen menu. The option may be "Reset all settings", "System Reset," or "Reset & Admin." Consult your TV's user manual for the location and steps for resetting your model.
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This video shows troubleshooting steps to use when a "No signal" message appears.

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If you are using OTA, make sure your antenna is rotated in the correct direction. If you use an amplifier or splitter, try the signal strength without the accessory. Replace if the direct connection helps.

If the TV is connected to a computer, make sure that the port is active and sending a signal.

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I wish that I could be of more help.

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