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X5-30gb -- no audio on Line Out jack
hollowman:
--- Quote from: soap on April 29, 2010, 08:34:04 PM ---If you want problem solving - let's start with sound reasoning.
--- End quote ---
Study the block diag in the TI DAC's datasheet. Look at where the Line Out ckt is compared to HP Out and HP's vol cntrl. Then, realize (as noted elsewhere in this thread) that RB does disable LO when vol is minimized ("0"). I need to check the status of this bit. Can you tell me how to access it in RB or via any other utility?
BTW: do you know of a source for X5 schematics? I cannot obtain them as I usually can with other hifi gear I own.
BTW: Yes, I am absolutely certain that, at the most 15 min prior to 1st install of RB, LO worked. Correlation? ...technically yes, but -- as much as I like RB -- I can't give it the full benefit of doubt here. Maybe something in this X5 was getting ready to "go" anyway, and RB was merely the last straw. Maybe!
saratoga:
--- Quote from: hollowman on April 30, 2010, 01:32:21 AM --- I need to check the status of this bit. Can you tell me how to access it in RB or via any other utility?
--- End quote ---
Easiest way would be to write a plugin that printed. However, since the value of registers is reset whenever the power is disconnected, the value you read in rockbox may or may not be the same value as in the OF. Getting the value in the OF would be very, very hard.
--- Quote from: hollowman on April 30, 2010, 01:32:21 AM ---
BTW: do you know of a source for X5 schematics? I cannot obtain them as I usually can with other hifi gear I own.
--- End quote ---
I don't know any MP3 players with schematics. These aren't typically published.
--- Quote from: hollowman on April 30, 2010, 01:32:21 AM ---
BTW: Yes, I am absolutely certain that, at the most 15 min prior to 1st install of RB, LO worked. Correlation? ...technically yes, but -- as much as I like RB -- I can't give it the full benefit of doubt here. Maybe something in this X5 was getting ready to "go" anyway, and RB was merely the last straw. Maybe!
--- End quote ---
If it happens in the OF then its obviously a hardware issue. Rockbox can't change how the OF works. It sounds like you've burned out the line out amp.
soap:
--- Quote from: hollowman on April 30, 2010, 01:32:21 AM ---
--- Quote from: soap on April 29, 2010, 08:34:04 PM ---If you want problem solving - let's start with sound reasoning.
--- End quote ---
Study the block diag in the TI DAC's datasheet. Look at where the Line Out ckt is compared to HP Out and HP's vol cntrl.
--- End quote ---
If you notice in the block diagram you quote, line-out separates from headphone out before the variable amplifier. You'll note there is no controllable hardware after said split on the line-out. In other words nothing to mute the line-out without muting the headphones.
You'll also note that functional blocks which can mute are explicitly labeled as capable of muting, and none of those are in the audio chain in question.
--- Quote from: hollowman on April 30, 2010, 01:32:21 AM ---Then, realize (as noted elsewhere in this thread) that RB does disable LO when vol is minimized ("0"). I need to check the status of this bit. Can you tell me how to access it in RB or via any other utility?
--- End quote ---
No bit to check.
The headphone and line-out are both disabled at minimal volume, that happens upstream of the split.
I feel insulted by what I see as a repeated implication that I am ignoring parts of your messages.
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