Question about Audiovox AVT-1475 13" TV

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TV AudiVox tv has Small Picture about 2inch in size in the middle of TV Picture is not full 13 inch Screen.

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Hit your TV lightly on left side or right side or on top & then observe ..........you will get normal picture or it comes & again it goes....if it is happening like that then following is the situation..........after 4 or 5 yrs in some TVs on main board (also on circuit board that is fixed to CRT TUBE ) at some soldering joints crack develops....then due to loose contact picture becomes small in size ...........when we hit that lightly then those loose contacts joins temporarly & again picture appears for some time............so solution is ......TV main board should be observed carefully & most of the joints should be re-soldered.......only a good service engineer can do that........even after hitting TV lightly if there is no response then main board has to be checked completely........in your case iam sure it is loose connection problem.........joints should be re - soldered ...100% it works again................this problem cannot be solved by user unless user has idea about components( resisitors, transisitors, diodes,...etc) , have soldering iron , multimeter & other tools....................so contact good TV service engineer

Posted on Apr 22, 2011

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hit your TV lightly on left side or right side or on top & then observe ..........you will get normal picture or it comes & again it goes....if it is happening like that then following is the situation..........after 4 or 5 yrs in some TVs on main board at some soldering joints crack develops....then due to loose contact picture becomes small in size or disappears ...........when we hit that lightly then those loose contacts joins temporarly & again picture appears for some time............so solution is ......TV main board should be observed carefully & most of the joints should be re-soldered.......only a good service engineer can do that........even after hitting TV lightly if there is no response then main board has to be checked completely........in your case iam sure it is loose connection problem.........joints should be re - soldered ...100% it works again (2inch on top will also gets solved )................this problem cannot be solved by user unless user has idea about components( resisitors, transisitors, diodes,...etc) , have soldering iron , multimeter & other tools....................so contact good TV service engineer
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Not familiar with your actual model.

But a comon problem with older Tosh sets is the 2.2uf electrolytic caps from memory they are usually red there is 1 next to frame Ic & the second is near Psu.

Allso check frame o/p IC for dry solder joints this is easy to test for.

Tap the tv while it is on if the the frame suddenly pop to full size picture you know its dry joints so resolder frame IC.

 

http://dysonmanuals.inc.io/

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