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Re: Magnavox TR2512 vertical/horizontal hold problems
Subjecting a TV (or other electronic devices for that matter) to moisture etc is not good for them.
From your description, it sounds like the high voltage transformer (HVT) is arcing. This can potentially destroy the circuit boards, or even cause the set to catch fire.
Fiddling with unrelated controls will just create more problems, but not solve the original one.
As TV's can store potentially lethal voltages (around 25 thousand volts!) long after power is disconnected, if you are not experienced in repairing them, you would be well advised to take it to someone who is.
Magnavox are known for the HVT problem and personally, I wouldn't waste money repairing one.
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Vertical or frame rolling indicates adjustment of the frame hold is required or perhaps there is a synchronisation fault.
Breaking of the picture in the horizontal plane is caused by the line hold requiring adjustment though the symptom can be connected with interior or exterior signal problems or perhaps a power supply fault, especially where both the line and frame are affected together.
It is probably a task for an engineer or at least someone with access to the servicing instructions.
Vertical scan output section circuit fault. Absence of vertical scan causes the single horizontal line on screen. Horizontal scan output section is OK. Contact any service technician to troubleshoot the vertical scan output section circuit. If you wish to get some details; check the site linked here. Pull up older posts.Surf the site with patience.http://electronicshelponline.blogspot.com/
Horizontal line fault to CRT based TVs are given.
U talking about way back in the 40 and 50.From the 60 on tv all use intergrated circuit board.Mostly ICS chips now,no more tubes and analog parts.The problems ur tv have is the Horizontal IC chip is dead.
If the line is horizontal (it is a vertical problem) If its a Vertical line (it a horizontal problem) So it could be just a bad solder joint or a component has failed in the horizontal or vertical section. Hope this is helpful.
hi first of all u should check ur transistor connections.Check your
Horizontal and vertical output transistors.You should also
check the horizontal and vertical yoke connections as well as your low
voltage regulators.... if any of these got damaged u should purchase a
new one.. but try to purchase with the help of a tv service assistant... thank u!!! rate me
this symptom is caused by a trouble in the integrated circuit of in the vertical oscillator circuit.
try to look if your tv has a vertical hold control at the back or inside, if it does not have, u have a problem in the vertical oscillator circuit. by the way, its not the horizontal that u should concentrate into, its the vertical. coz this is a vertical sync problem.