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I have the "no sound" problem

Discussion in 'TiVo Series 1 - UK' started by AWT, Oct 15, 2007.

  1. cyril

    cyril New Member

    1,128
    0
    Sep 5, 2001
    London UK
    I have large drives and cachecards so anyone know of a higher rated replacement PSU?
    Alternatively I could use a seperate PSU to power the hard drive on its own. Any thoughts?

    It's not a big deal as I only need to reboot every few years :)
     
  2. mikerr

    mikerr TiVoCentral.co.uk

    2,598
    0
    Jun 2, 2005
    Up North
    You could use any standard PC PSU for the drives, just make sure you have a common ground between the two.
    I.e. 0V is the same on both.

    A wire from PSU metal case to tivo metal case should be enough.

    Not sure how this affects the sound problem, as I don't have a tivo with that problem to test ;)
     
  3. geekspeak

    geekspeak New Member

    245
    0
    Oct 1, 2002
    Regarding the power supply issue and ability to tweak the output has anyone considered or tested this to try and resolve the mode 0 white flashes issue?
     
  4. mikerr

    mikerr TiVoCentral.co.uk

    2,598
    0
    Jun 2, 2005
    Up North
    Nice idea, but I think we can safely say that mode0 flashes are unrelated to voltage (stability) levels.
     
  5. Podwin

    Podwin New Member

    38
    0
    Nov 5, 2002
    Manchester UK
    Hi, I've got 2 HDs and a cachecard, so it's not unexpected then!

    Funny it's never happened to me before.

    Still be nice to have a spare PSU on the shelf though.

    Martin
     
  6. Automan

    Automan Ex TiVo User

    4,184
    0
    Oct 29, 2000
    South...
    If you do try an alternate psu make sure it is Energy Star 4 complaint which means it must be 80%+ efficient.

    Make your TiVo green :)

    Automan.
     
  7. qwiki

    qwiki 8 R/C's and counting

    90
    0
    Feb 28, 2002
    I like the idea of this. I've tried a new PSU to cure the problem on mine, but I was unsuccessful (still, nice to have a spare PSU for a rainy day :))

    I was just thinking that I've got one of those external USB HDD adapters that you connect 2.5" or 3.5" drives to outside of the case for test purposes. It comes with a PSU for powering the larger 3.5" drives which has got the right molex connector and it's really small - ideal to mount inside the tivo, then tap a mains feed off the back of the PSU socket.

    Hmmm? :rolleyes:... I'm liking this more and more. :up:
     
  8. randap

    randap Only a TiVo will do.

    155
    0
    Jan 21, 2003
    Nottingham
    I've just replaced my Samsung 300GB drive with a new Hitachi 320GB drive, and now I'm getting no sound on reboot, even with the voltage upped to 5.3V.

    I should have a new PSU to test soon, but I'm wondering if I should put my Samsung back in......

    EDIT: OK, put the Samsung back in and sound is OK...... could this be drive related? Does the Hitachi need more juice? I might have the take the drives back - "Reason for return please sir?", "They don't work in my TiVo", "Hu?".....
     
  9. blindlemon

    blindlemon tivoheaven.co.uk

    5,577
    0
    May 12, 2002
    Malmesbury, UK
    This is quite common and is sometimes improved by a new PSU but not always. Some drives just pull too much power at startup.

    The safest option (if you're really paranoid about it) is to write a script that executes after every other reboot and forces another reboot. This will mean that after every power-on the TiVo will do one soft reboot which should fix the sound if it was missing. If it reboots again for any reason, it will do so twice, but that's something you will have to live with unless you can figure out how to detect that the TiVo has been powered-on rather than soft-rebooted.
     
  10. mikerr

    mikerr TiVoCentral.co.uk

    2,598
    0
    Jun 2, 2005
    Up North
    Does it always show "Unknown MSP product" in the log if it is booting without sound ?
    I think it does, so a script would just need to for that and then reboot.
     
  11. blindlemon

    blindlemon tivoheaven.co.uk

    5,577
    0
    May 12, 2002
    Malmesbury, UK
    I guess if you delete the log after a successful (with sound) boot. Otherwise you would be picking up errors from previous reboots :eek:
     
  12. randap

    randap Only a TiVo will do.

    155
    0
    Jan 21, 2003
    Nottingham
    Mike / Steve,

    Can't check logs at the mo (had to deactivate my port forwarding for my PS3 - another long story).....

    But, soft/warm restarts make no difference with the Hitachi drive. Looks like I'll be taking them back.
     
  13. mikerr

    mikerr TiVoCentral.co.uk

    2,598
    0
    Jun 2, 2005
    Up North
    Checking the date/time on the log entry would solve that,

    ... are you going to write it or shall I ? ;)
     
  14. blindlemon

    blindlemon tivoheaven.co.uk

    5,577
    0
    May 12, 2002
    Malmesbury, UK
    Be my guest - my tcl/bash scripting skills are very rudimentary :eek:

    But if somebody would write a C# shell for the TiVo I'd be cooking on gas... :D

    Edit: I guess that'd mean porting Vista or XP to the PPC and getting it to run on a 54mhz processor with 16mb of memory... could be a challenge... :cool:;)
     
  15. mikerr

    mikerr TiVoCentral.co.uk

    2,598
    0
    Jun 2, 2005
    Up North
    Here's the promised "reboot if no sound" script:

    It checks the kernel logfile for the line "Unknown MSP Product" on the last bootup,
    and reboots if it sees it.

    It won't reboot if your tivo has been rebooted more than 5 times in the current hour,
    just in case it would never restart with sound.

    ./nosound.tcl
     

    Attached Files:

  16. Olly

    Olly New Member

    128
    0
    Sep 29, 2001
    Wirral, UK
    Would running this script possibly result in the \var partition being reinitialised due to repeated reboots?
     
  17. mikerr

    mikerr TiVoCentral.co.uk

    2,598
    0
    Jun 2, 2005
    Up North
    It shouldn't cause that, no. But you still should have a backup of /var anyway ;)

    Tivo wipes the /var partition if it fails to bootup completely twice in succession,
    - i.e if its filesystem check doesn't complete twice.

    rc.sysinit.author runs after that point in the boot process.
     
  18. gonzo69

    gonzo69 New Member

    7
    0
    Jan 21, 2006
    Hi all,

    The "no sound" problem has reappeared on my Tivo (it first happened just after I installed my Turbonet card approx. 1 year ago) but after at least 30 hard and soft reboots, it shows no sign of the sound coming back.

    I therefore have what I hope is a simple question - if I purchased another Tivo, would I be able to rip out the old original drive, and replace it with my 120 Gb drive, together with my Turbonet card.

    Is it that simple, or will I have to reconfigure anything. I am hoping not, because I have (had) it working just as I wanted, with a Digiguide connection so I can just right click on the program etc.

    Cheers,

    Gonzo
     
  19. AMc

    AMc Active Member

    2,623
    0
    Mar 22, 2002
    East of England
    @mikerr

    We've had overhead power line problems resulting in a several power outages that my UPS couldn't outlast. I've now got the no sound problem pretty consistently.
    At some point I'll be brave and pull the TV stack apart to fiddle with the PSU but for now I assume I just binary FTP nosound.tcl into scripts and add
    Code:
    /var/hack/scripts/nosound.tcl &
    to rc.sysinit.author ?

    Cheers

    AMc
     
  20. healeydave

    healeydave from tivoland.com

    944
    0
    Jun 4, 2003
    Midlands
    Hi,

    Its Dave from tivoland here.

    I know I don't frequent the forum much these days, so much so that many users don't even know we exist anymore heheh :)

    Anyway, I have a hardware repair that we can carry out that can cure the "no sound but recoverable with warm boot" problem about 80% of the time.

    I have never really heavily publicised it because its only around 80% effective. e.g. in some cases it doesn't work, but it doesn't make the problem any worse.

    I would encourage users to go down the new PSU or tweak the PSU route first and if someone really wants it done as a last resort, it is an option.

    Regs
    Dave.
     

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