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I need Humax 5400 Service Manual. or circuit digram the power supply

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You are asking about the service manual of Humax STB I thinks. If so, get me your email address by fixya. I can't upload it to you by this site. I'll send it to you by mail. OK.

Posted on Mar 15, 2011

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Dear Robert...

I think the problem with my humax 5400z is similar to yours.

Both 5400 & 5400z have the same power supply unit.

I just solved it this evening by changing C9.

It's a 1500 μF 10V electrolytic capacitor. Be careful not to reverse the polarity my friend.

If you have problems to find the capacitor just e-mail me at and I'll send you pics showing the location of that C9 capacitor on tthe psu board.

Hope this could help you.

Good luck.

Ramez Lebbad.

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