You may have a t-con board bad usually a small board that connects to the screen.
SOURCE: Hi I have sansui tv , it's colours are going to
Check and replace the chroma IC. Before replacing it, re solder all the solder terminals to this IC, by applying a little more fresh solder to each terminals.
SOURCE: Hello sir my tv sansui modal no.b2b21. My problem
It sounds that the vertical sweep section need adjustment. But before adjust, you have to replace all the electrolytic capacitors at the vertical sweep output section. There will be 5 or 6 of them. Replace them all at same time, with same capacitance value and voltage rating. Be sure about its placement, as electrolytic capacitors will have both + and - terminals. In most cases, this must rectify the problem.
If you still experience the same problem, you have to enter its service mode option to do adjustments. This is a semi-skilled work. you must have a general knowledge in electronics to follow, as service mode and adjustments display window will be entirely different to that of user menu window.
If you wish to get more details about how to enter service mode to Sansui sets, check the site linked here. Service mode entry, adjust, and exit method to many brand televisions are given in detail. Check it. Do not go further, if you are not confident.
http://electronicshelponline.blogspot.com/
Pull up previous posts, either by type in the
Brand name to your set in its search box, or view it in Mosaic /
Timeslide / Flipcard option. Select view option
by the drop-down view box, at the top left or the display window.
SOURCE: I need service menu code for SANSUI B2B21 TV to
If you wish to get some details, check the site linked here. http://electronicshelponline.blogspot.com/ Pull up older posts. Check the site in 'Mosaic' view. It will make search easy. Service modes to many popular brand TVs are given.
SOURCE: sansui portable tv capacitor
There are so many capacitors of different capacitance, and with different voltage levels. About which capacitor you are asking about? If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. Surf the site with patience.
http://electronicshelponline.blogspot.com/ Pull up older posts there.
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