Gameboy DMG sound issue

[/gameboy]

So a have DMG that have a weird sound issue, when it turns on there is no sound when Nintendo logo appears.

When playing super mario land, the is no sound when collecting coins, enter a pipe or shooting fireballs. But there's music in the game and other sounds.

I tried to change the speaker, headphone jack board, pro sound mod on headphone jack.

And the results are the same.

Can anyone help.

Thanks
submitted by /u/cagarolas
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Source: https://www.reddit.com/r/Gameboy/commen ... und_issue/