Bush 2871ntx ak19 28"TV

Replace its memory IC and clock oscillator.

Your TV is in what is called "vertical collapse". About 70-80% of the time it is due simply to bad solder joints on the vertical output IC. You can verify this by tapping on the side or top of the TV, the picture may jump back into position. If it comes back it's as simple as re-soldering the vertical IC. If not, the vertical output IC may be shot or it may be missing one of it's supply voltages.
If the picture has been shrinking or had lines at the top that means there are some capacitors in the vertical circuit that were drying out. If it happened all of a sudden I'd bank on it being just bad solder.
Don't run it like that with that bright line for too long or it will burn in on the picture tube. Then if you do get it fixed you will see that line there all the time!

If you look carefully at teh line it should be red, green, and blue close together to appear like a white line. If this is the case, then the vertical circuit has failed. This is often poor solder connections at the vertical IC or a defective IC. Expect a parts cost in the $20 range for this repair.

Dan

change the verticle cables on the deflection coil on the tube.
note just the verticle cables ( verticle has only two cables)
what is happening is that current is reversed.

get it to some body a tech.

my tv gave me a similar problem.

Please contact below address for Madras branch as they are authorised Bush service centre


Location : U/12 A, Yogi Complex, New Rander Road, Surat - 395009 Phone : (0261) 3066848, 6548278 Regards//Ravin//London

how to reset the passeword

it may just be a simple problem of the cables coming loose at the back

Check all electrolitic capacitors at power supply area : better replace them.

Hi.

Try looking in the menu under PICTURE. see if there is picture size adjustment for picture size eg 16 x 9 4 x 3 normal wide.

A white like across the screen means that the vertical circuit has stopped working. Look for a small fuse that looks like a resistor near the vertical output IC, replace that fuse if open and resolder the pins on the vertical output IC.