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The tv CRT-(tv tube) screen itself is broken now or dying already and tv PCB board broken require replacing too,tv will still work after replacing PCB board or repairing it but tv will not be watchable becauuce tv screen will all mess up like screw up picture colors will have black and blue colors be all over the tv screen.Tv now will not be worth repairing if require replacing CRT-(tv tube) will cost the same as a new tv if tries replacing CRT-(tv tube) if u still can buy it.Can't buy analog CRT-(tv tube) anymore.Sorry time to buy a new tv.
Tv fell off about 3 feets or more?Yes,turn on the tv see if u getting any power to the unit?Might have broken main PCB board too.If unit still have power,check see if tv get statics screen have colors shaded in red or mutiples colors,mean the tv CRT(tv tube) yoke is dead and damages scrambles radiation.Or the tv getting power but have high pitch sqeeling noises or rattles noises,tv have the CRT-(tv tube) is crack by the neck or broken totally.CRT have damages problems or dead tv is worthless,beacause of CRT(tv tube) is dead,not fixable even that antena connector input is replaced.
Commonly for Hitachi tv's if the screen went out,,the problem will be the CATHODE RAY TUBE,it is costly to buy.if you want you can buy it,,or it may be the D-board problem will be also,,, but it is unusual,so check the tube.
the most common problem when the tv felt is the shadows all over the screen (maybe the tv didnt show it imm but looks like now is there the problem)
second:there is a circuit in the tv that works when the tv turns on every day. prevents the tv showing shadows on the screen.
the answer is this: if that system that prevents shadowing is working then the CRT is broken and say bye to the TV. But if the expert tech can make sure the D' gauss system is not working and can repair it then you get tv back.
The problem you are having is a vertical deflection problem. The screen is being compressed to a thin white line. It's probably a defective vertical output module or transistor. This part is not too expensive. Less likely would be a vertical deflection coil, which would be more expensive because its usually glued to the picture tube and harder to replace. You'll need to take your set to service center to have it serviced.
Please let me know if I can be of further assistance to you.