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Find the vertical IC and just resolder all the pins and adjacent component pins. This will fix the problem, this is the result of a dried out solder joints.
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What do mean by the vertical going up and down. Do you mean that the picture collapses to a vertical line then is good, then back to a line? If so then you have an intermittent/cracked solder joint at the vertical output IC. If you have no experience in soldering, then please have it repaired by a service center.
seems like a lose ground issue from the vertical scan board which usually causes this problem. A scan board repair or replacement should fix this intermittent problem.....take it too your local repair shop before this problems spreads and the tv totally shuts down....
if i had known i would have to pay for an answer i wouldn't have taken up your time. seems like everybody is jumping on the greed wagon. good luck with your website.
Good Day, sdkhanmd;
Replace C2P05 100 UFD 16 VOLT off pin 3 IC2P01 and IC2P01 part #270P466020 (9 volt regulator). Both are on the signal PCB. Also, check other caps in area for leakage.
Hope this was helpful, this common for this model.
Good Luck, big IRISH.
That's still repairable here some tips need to consider as follow:
1)
Intermittent loss of syncronisation, both horizontal and vertical
The surface mounted power transistor on the teletext module requires
resoldering. As there is evidence of scorching on the board the use of
a more substantial component would be indicated perhaps with small
heatsink 2)
Picture displaced vertically, picture too high or low
This problem was cured by entering the service mode (menu then
4,7,2,5), then pressing the green fastext button to access geometry
settings, selecting VP1 (vertical position) and adjusting as necessary 3)
Vertical line at the left of the picture
Replace L506 on A board, replacement part number 1-407-366-00 4)
Problems with screen size
Look out for 2 x 2.2uF electrolytics (sometimes red in color) 5)
Vertical height oversize
The eprom was found to be faulty (nvm)
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