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M04 Family Posted on Dec 08, 2016
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Toshiba LCD TV/DVD 15LV505 lost channels. Rescan = fewer channels. Now in Setup, when I press the remote down-it skips the Channel option. What must I fix/change in Settings to get the Channel option?

Have Verizon FIOS. Dropped channels. So I selected Channels Auto Chn Memory. The rescan resulted in fewer channels than before the scan. So I thought to scan again. However now in the setup menu, when I press the remote down button, it skips over the Channel option. I can't select Channels to perform a rescan. What's wrong? What must I do/fix/change in Settings to again be able to select the Channel option, so I can scan for channels?

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The Knight

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  • Toshiba Master 76,851 Answers
  • Posted on Dec 09, 2016
The Knight
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Main system control memory IC fault. This is a very small IC; have 8 solder terminals, and can be located very near to the main system control-chroma IC. Check and replace it. Be sure to replace it with the same number printed on it; in all respect. Otherwise, it won't go. http://electronicshelponline.blogspot.com/ Before replacing it, try a reset to this set, and then check.

Testimonial: "Hello The Knight, Thanks for your help. But please help me understand. By system control memory IC fault, are you suggesting I need to replace the Eeprom memory? (Toshiba 15LV505 Service Manual: When Replacing Eeprom (memory) Ic.) https://www.manualslib.com/manual/180772/Toshiba-15lv505.html?page=45 And follow the instructions to reprogram it after replacing the Eeprom? Or do you mean something else? Thanks again for your help."

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What's the imput button or code on remote for ten year old TV. Model #14MS2331/17

According to the manual for the Magnavox 14MS2331/17B, you switch to the A/V input by pressing Ch+ or Ch- on either the TV or the remote until you see AV as the current option. (Thus you have to scroll down from Channel 2 or up from Channel 69 for an OTA signal. For cable TV, the AV will be reached by Ch - from channel 1 or Ch + from channel 125.) See page 3 (7 of the PDF) here: http://download.m4c.magnavox.com/files/1/14ms2331_17b/14ms2331_17b_dfu_aen.pdf .

Since it is possible to skip channels by editing the channel list, you may need to check if the AV option has been skipped. To do this, press Menu. Use the up/down buttons to navigate to Install and press the right button to enter this menu. Highlight the Channel Edit line and press the right button to check this. Once in this sub-menu, use the left/right buttons to scroll through the Channel number options (or use Ch+/Ch- to see the stored list). You can also type in a channel number on the remote. Press the down arrow to change to the line that reads Skipped. Use the left/right arrows to change between Yes or No. (No indicates you can reach the channel with the Ch+/Ch- buttons.) Use the Up arrow to return to the channel number line to scroll to other channels. Press Status/Exit to leave the menu system. See page 10 (14 of the PDF) for details.

I hope this helps.

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  • You have to set the channel you want as a favorite first and you can do this from the TV. This is why the channels skip as you press up and down. Sometime or another those were someones favorite channels.
  1. Press "MENU" on the TV until "SET UP" appears on the screen.
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