Hi I need the Onida TV Circuit for the model CO21FGLU

I am facing a AV problem in my TV. The Switching is not functioning properly in the AV board. It having the IC named U4066, Switcher IC 4052BT and 4053BT. All the Audio and Video inputs are coming as a input to this AV board. Somebody help me to get the IC Details atleast.

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