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AKAI Plasma Multimedia Monitor, Model PDP4247Fa, 5+ years old, has vertical band of stripes 3 inches wide top to bottom center of display; prominent when cold, less so when hot. Is this a repairable issue?

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  • Gary Neubaum Aug 06, 2010

    Helpful, over my head but sort of what I had anticipated. The Akai monitor has been a good one; I have enjoyed excellent picture quality for probably as many years as one could expect.

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  • Akai Master
  • 6,993 Answers

Hello,

Most probably the vertical deflection amplifier of your TV is failing. The most common part that fails is the vertical output transistor.
The set is too old to find documentation on part numbers and descriptions. Probably the part is no longer available and you will need the assistance of someone who can help you find an equivalent transistor that will do the job.

Of course, without testing we cannot be certain the failure is the output transistor. It could be from something else such as the voltage regulator that feeds the dc line to the vertical section. Could be the vertical synch level that goes too low to trigger the vertical sweep generator.

Sorry if it is getting too complicated but an old set like this can have so very many possible causes.

If you don't have any idea about TV repairs, you can take it to a tech to help you out.

Good luck.

Posted on Aug 05, 2010

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Posted on Jan 02, 2017

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