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After Switch off wait serveral seconds- Why?

 
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steve0105



Joined: 22 Mar 2007
Posts: 5

PostPosted: Sat Mar 24, 2007 6:18 am    Post subject: After Switch off wait serveral seconds- Why? Reply with quote

On the back of a freeview box I have it has a label saying:-

"After Switch off wait serveral seconds before switching the unit back on"

What is the purpose for doing this from an electronics point of view?

Why do you need to do it, what happens if you give it 1 sec as opposed to 5-10 seconds ?"
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vtech



Joined: 08 May 2006
Posts: 1264
Location: USA

PostPosted: Sat Mar 24, 2007 4:02 pm    Post subject: Reply with quote

In general, it has to do with all the internal resets/handshakes & various
communication between processor circuits. There is always a ceratin amount of delay involved which depends on circuit design &/or complexity.

Main purpose is to prevent any possible misoperation/lockups due to interference during power down operation--- tends to vary with different devices & waiting any longer than suggested has no effect.
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steve0105



Joined: 22 Mar 2007
Posts: 5

PostPosted: Sun Mar 25, 2007 11:39 pm    Post subject: Thanks Reply with quote

Thanks VTECH for the explanation- Now I understand.
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