ADV7626 AV Mute

Hello,

I received same questions about AV mute of ADV7626 from our customer.

1) According to AV mute and Black image, AV mute seems to be given priority over take priority of Block mute when we use AV mute (TX Main 0x4B) and Black image (TX Main 0x9E) at same time, Is it specification of ADV7626?

2) We can see a picture in a moment when we clear the AV mute in following operation.

       1) set AV mute   --> shown AV mute on a screen  

       2) set Black image  --> shown AV mute on a screen

       3) clear AV mute    --> shown a picture on a screen in a moment, then shown Black image

       4) clear Block image   --> shown a picture

   Can we avoid like this phenomenon?

3) We can see a picture of original source when we change AV mute from set to clear during to changing the input source in following operation.

       1) change the input source by 0x01 of IO 

       2) set AV mute before shown a picture

       3) wait a moment

       4) clear AV mute  -->  original source is shown in a moment then new source is shown

   Can we avoid like this phenomenon?

Best regards,

Akira

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