summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--docs/FAQ117
1 files changed, 64 insertions, 53 deletions
diff --git a/docs/FAQ b/docs/FAQ
index 7018178dc8..43009872e2 100644
--- a/docs/FAQ
+++ b/docs/FAQ
@@ -560,81 +560,92 @@ A68: The old MOD/AJZ was not entirely deleted from the disk. It is still
560 there, and the boot loader finds that one instead of the new file. Here's 560 there, and the boot loader finds that one instead of the new file. Here's
561 what you can do: 561 what you can do:
562 562
563 o Download and install Directory Snoop (version 4.03 in november 2002) 563 - Download and install Directory Snoop (version 4.03 in november 2002)
564 from http://www.briggsoft.com/dsnoop.htm 564 from http://www.briggsoft.com/dsnoop.htm
565 It's shareware, the trial version can be used 25 times. 565 It's shareware, the trial version can be used 25 times.
566 566
567 Directory Snoop can display true drive contents by bypassing the 567 Directory Snoop can display true drive contents by bypassing the
568 operating system and reading the raw drive sectors directly. 568 operating system and reading the raw drive sectors directly.
569 569
570 o Plug the Jukebox in the PC as usual and power on 570 - Plug the Jukebox in the PC as usual and power on
571 o Launch Directory snoop 571
572 o Click on the Jukebox drive letter in the [select drive] field in the 572 - Launch Directory snoop
573 toolbar. The content of the jukebox harddrive appears in the main 573
574 window. Files which appear in red color don't seem to be present on the 574 - Click on the Jukebox drive letter in the [select drive] field in the
575 harddrive, but they still here. 575 toolbar. The content of the jukebox harddrive appears in the main
576 576 window. Files which appear in red color don't seem to be present on the
577 o Simply select the appropriate files (red color) and purge them 577 harddrive, but they still here.
578 (Purge button). Of course, don't erase the new archos.mod file and the 578
579 .rockbox directory :) 579 - Simply select the appropriate files (red color) and purge them
580 o Safely remove (Windows unmount device function) the Jukebox. 580 (Purge button). Of course, don't erase the new archos.mod file and the
581 Power it up and ...voila... Rockbox is there! 581 .rockbox directory :)
582
583 - Safely remove (Windows unmount device function) the Jukebox.
584 Power it up and ...voila... Rockbox is there!
582 585
583 (Thanks to Olivier Rafidison for this info) 586 (Thanks to Olivier Rafidison for this info)
584 587
585Q69: What kind of mic can I connect to my AJBR? 588Q69: What kind of mic can I connect to my AJBR?
586A69: There are several types of microphones. 589A69: There are several types of microphones.
590
587 Dynamic: The one that's available from archos is a dynamic one. 591 Dynamic: The one that's available from archos is a dynamic one.
588 Their output level is high enough so that they don't need an 592 Their output level is high enough so that they don't need an
589 amplifier (that's the reason why the archos mic is of 593 amplifier (that's the reason why the archos mic is of this type -
590 this type - it's cheap). 594 it's cheap).
591 - cheap 595 - cheap
592 - no good sound quality of cheap dynamic mics (good enough for 596 - no good sound quality of cheap dynamic mics (good enough for
593 speech) 597 speech)
594 - no amplifier needed 598 - no amplifier needed
599
595 Backplate Condenser: These are the professional mics. They need phantom 600 Backplate Condenser: These are the professional mics. They need phantom
596 power (48V) for charging the condenser. 601 power (48V) for charging the condenser.
597 They also need an amplifier, because their output level is low. 602 They also need an amplifier, because their output level is low.
598 - good sound quality 603 - good sound quality
599 - need phantom power (48V) 604 - need phantom power (48V)
600 - need amplifier 605 - need amplifier
601 - expensive 606 - expensive
602 Electret Condenser: These capsules are cheap and result in a good recording 607
603 quality. They don't need phantom power voltage. They need power 608 Electret Condenser: These capsules are cheap and result in a good
604 for the FET (field effect transistor) that's inside. If you have 609 recording quality. They don't need phantom power voltage. They need power
605 such a mic with a battery in it, it is mostly because of the FET 610 for the FET (field effect transistor) that's inside. If you have
606 power, not because of an amplification circuit inside the mic. 611 such a mic with a battery in it, it is mostly because of the FET
607 These mics are in all the consumer products like mobile phones, 612 power, not because of an amplification circuit inside the mic.
608 PC headsets and so on. 613 These mics are in all the consumer products like mobile phones,
614 PC headsets and so on.
609 - cheap (2 EUR for a capsule) 615 - cheap (2 EUR for a capsule)
610 - good sound quality 616 - good sound quality
611 - need amplifier 617 - need amplifier
612 - need power for the FET (1,5 - 15V) 618 - need power for the FET (1,5 - 15V)
613 recommendation for do-it-yourselfers: Use electret condenser mic capsules, 619
614 solder an amplifier for them which both amplifies the output level 620 Recommendation for do-it-yourselfers: Use electret condenser mic capsules,
615 and feeds the power needed for the FET to the capsule. 621 solder an amplifier for them which both amplifies the output level
616 The one on http://www.geocities.com/ferocious_1999/md/micpreamp2.html 622 and feeds the power needed for the FET to the capsule.
617 was soldered and tested by Uwe Freese, and it works. 623 The one on http://www.geocities.com/ferocious_1999/md/micpreamp2.html
618 There are some others available from www.elv.de and other sellers. 624 was soldered and tested by Uwe Freese, and it works.
619 recommendation for others: Buy some mic + preamp combination which can be 625 There are some others available from www.elv.de and other sellers.
620 plugged into a line in of any amplifier. Maybe such a commercially 626
621 available combination needs a power supply and doesn't work with 627 Recommendation for others: Buy some mic + preamp combination which can be
622 batteries. Some are very expensive. (If you know a cheap solution 628 plugged into a line in of any amplifier. Maybe such a commercially
623 with an electret condenser mic + preamp, please tell us!) 629 available combination needs a power supply and doesn't work with
624 what does not work: Don't use an amplifier thing that can be simply connected 630 batteries. Some are very expensive. (If you know a cheap solution
625 between some mic cable. Maybe it sounds as if it could work, but 631 with an electret condenser mic + preamp, please tell us!)
626 I doesn't. If the piece of (expensive) electronic doesn't have a 632
627 power source and your mic doen't either, it does not work! 633 What does not work: Don't use an amplifier thing that is simply
628 A PC sound card or md player has usually a power output (same pin 634 connected between some mic cable. Maybe it sounds as if it could work, but
629 where the sound goes through, dc value) for feeding the FET of 635 I doesn't. If the piece of (expensive) electronic doesn't have a
630 an electret condenser capsule (see above) (and this power could 636 power source and your mic doen't either, it does not work!
631 also used to feed a mic amplifier), but the archos hasn't 637 A PC sound card or md player usually has a power output (same pin
632 (it's a line in and no mic in!). 638 where the sound goes through, dc value) for feeding the FET of
639 an electret condenser capsule (see above) (and this power could
640 also used to feed a mic amplifier), but the archos hasn't
641 (it's a line in and no mic in!).
642
633 If you want to know more on microphone powering, read this: 643 If you want to know more on microphone powering, read this:
634 http://www.hut.fi/Misc/Electronics/circuits/microphone_powering.html. 644 http://www.hut.fi/Misc/Electronics/circuits/microphone_powering.html.
635 (As described, you need also amplification.) 645 (As described, you also need amplification.)
636 646
637Q70: I can't start rockbox when the charger is connected. What am I doing wrong? 647Q70: I can't start rockbox when the charger is connected. What am I doing
648 wrong?
638A70: If your device is off and you connect the charger, the Archos charger code 649A70: If your device is off and you connect the charger, the Archos charger code
639 is started immediately. You can then start Rockbox with holding down the 650 is started immediately. You can then start Rockbox with holding down the
640 ON key for several seconds. Hold the key down a really long time, until 651 ON key for several seconds. Hold the key down a really long time, until