The TV is giving problem on switching. Horizontal lines are observed, The colur is fedding automaticllay & become balck & white after 5minutes of switching.

Onida TV of Model 21KYR4 is gving the folowing problem. 1. Horizontal lines are observed in the screen after switching. But with gentle tapping the display becomes alright. 2. The collour of the display become black & white suddenly after switching.(agin switch on & switch off the display is ok for about another 5 minutes. 3 cam somebody help us for resolving the problem.

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