 Audio Always On? |
OESF Forums > Distros, Development, and Model Specific Forums > Distro Support and Discussion > pdaXrom  |
 Jan 27 2007, 11:21 PM
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#1
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 Group: Members Posts: 74 Joined: 28-May 03 From: Pennsauken NJ Member No.: 60  |
I noticed something the other day. I'm running r121 on my C860, and with the power 'off' I get noise on headphones when I'm jacking them in, giving me the impression that the audio circuit is live even when the Z is on standby. Is this correct?
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Jan 28 2007, 12:36 PM
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#2
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Group: Members Posts: 207 Joined: 22-June 04 Member No.: 3,783 |
If you mean a tiny click when you plug them in, then that doesn't mean much. Headphones are very sensitive and you can hear a very small current flowing.
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Jan 28 2007, 06:47 PM
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#3
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Group: Members Posts: 369 Joined: 6-September 04 From: Brisbane, Australia Member No.: 4,488 |
It's not the audio circuit per se - the CE-RH1 remote requires a voltage to be present on the "key" pin in the socket, which for the C860 happens to be the sleeve (ground is first ring, which is backwards IMHO and was reversed in the Cxx00's).
A headphone jack will touch the tip and each ring against the live "key" while it's being inserted; this is what causes the crackling you hear. It's still live when the Z is suspended so it is possible to unsuspend it using the remote; although I'm not sure pdaXrom is configured to take advantage of it. |
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