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Toshiba SD-H400 - Is the tuner dead?

Discussion in 'DVD TiVo Units (Archive)' started by dmk1974, Dec 10, 2009.

  1. briandsloan

    briandsloan New Member

    Nov 20, 2006
    Just an update. All of the sudden, everything is working fine, and has been working fine for a week. The only thing I can attribute it to is unplugging the power plug from the back of the Tivo, and plugging it back in so that it is in there pretty firm, but not all the way plugged in. As long as I unplug the Tivo from the wall, and plug it back in, there is no problem getting the signal to work.
  2. krs24rbn

    krs24rbn New Member

    Dec 23, 2006
    I don't know why the plug would have any effect on the tivo getting a signal. I've been stuck for the past week not getting anything. None of my usual tricks have worked (plugging cable in directly to the wall, unplugging the unit/plug back in).

    It's gotta be the tuner, right?
  3. shwru980r

    shwru980r Active Member

    Jun 22, 2008
    Will it work with over the air with a DTA converter box? If you know someone with a satellite, you could try it there. If it doesn't work with any of these sources, then there is some issue with the motherboard.
  4. shadowrydre

    shadowrydre New Member

    Aug 28, 2010
    I have recently experienced the no video issue. I use the Composite video input so I know that is no the tuner. In the past 5 years I have my Tivo repaired twice. I sent it directly to Toshiba. The service was great and the price was around $139.00 or so which included return shipping. I did have to pay to ship there. For those of you who are interested in the Toshiba contact info here goes. I don't know if it is still viable but it is worth a try.

    Toshiba repair 1 (800)631-3811 FAX 1(309)229-2583
    When you call you will need to fax them a cover letter w/RMA name and address w/description of issue.

    Good Luck
  5. shwru980r

    shwru980r Active Member

    Jun 22, 2008
    You could have easily paid half that cost for a used one on ebay.
  6. wiz

    wiz New Member

    Jan 9, 2002
    Seacoast NH
    Yes that is true but this first posting in this thread was 12-10-2009. This issue has been ongoing for months. I think the reason it's not on TiVo's radar, is that it only happens when the TiVo is rebooted, which doesn't happen unless you lose power or move it. With the age of the unit, I suspect a lot of users probably just junk the unit for a cable company DVR, or possibly a newer TiVo.

    I'm here today because I rebooted my SD-H400 to try to get the DVD player to work, it only reads 1 out of 3 disks I've tried. I've got it unplugged right now, and will restart in a hour or so.
    Follow up 9/9/2010
    Got it back by unplugging the svideo cable, pull the power, waited an hour and rebooted. Only every other boot will complete though so had to do it twice.
  7. rhinoj

    rhinoj New Member

    Apr 15, 2005
    I have had the same problem with mine. After several reboots and no success, I finally unplugged the unit for about 8 hours and then did a full restart. So far so good (three weeks). I don't know if that will hold, but it is looking good :up:
  8. mesuth

    mesuth New Member

    May 12, 2004
    I can now definitely confirm this is a SOFTWARE problem, not a hardware, lose cable, dead tuner etc. Just to be able to post this definite answer I logged on to this forum for the first time since 2004.

    I had the same problem described above. No signal from the box to Tivo, but if I bypass Tivo and directly connect to TV I was able to receive the channels. This had happened once last year too. It has happened one more time last week. You know... the black background with the blue warning message indicating no signal found and to go to settings-troubleshooting etc. I followed the advice here. It did not help. During the last 7-8 days I started with most basic restarting the unit and escalating to deleting all settings and recordings, repeating guided setup etc up to everything. Finally I started trying turning off the unit leaving it off for sometime, (10 mins to 8-10 hours) and trying again with the box connected (and not). No luck.

    This morning both the TV and Tivo was on, with the black screen and blue message. For some reason we did not turn off either of them for almost 45 minutes. My son was playing with his toys, I guess we forgot about that. All of a sudden Live TV appeared on TV out of nowhere. I had tried my last restart a few hours ago. What is important is:

    It had the last 30 minutes recorded and available! It means it always received the signal, it always transformed it and saved it on the hard drive, it simply did not show it on TV. We were able to go back 30 minutes and watch the cartoons from when we had the blue warning message!

    For what it is worth, this is an original SDH-400 from 2004, with lifetime subscription since then. It is very heavily used, almost always recording something and/or someone watching. I upgraded the drive myself around 2007. No other problems whatsoever.
  9. glocks

    glocks New Member

    Sep 28, 2006
    Thanks for the forum replies. I've had the same issue for weeks. Seems to be finally solved. Like some others, I originally thought it was a function of an impending upgrade to all digital signals. I had been fooling around w/ a digital converter from the cable co. and placing this in various sequences w/ and without our cable tuner box (I thought that it was redundant w/ the cable tuner box, but I was trying everything).

    Finally fixed after repeated attempts to problem solve. Worked when I rebooted everything (i.e., tv, tivo, cable tuner box) and got rid of the digital converter. Before we had an add'l cable tuner box, I had issues getting the gov't issued digital converter to work w/ this tivo, too...

  10. segaily

    segaily New Member

    Aug 2, 2003
    Well just had the same issue as everyone else after a brief power outage here is my info for another data point.

    Setup sd400 analog cable in, cable out to really old TV. Tivo wifi adapter.

    If I put the TiVo in standby my tv could see all the channels fine. TiVo reporting searching for signal in when not in standby. Show recorded before power outage are fine. Let run for a few days no change. Power cycle by pulling power cord out of back of TiVo for 10ish seconds no change.

    Read this thread and thought hmmm sounds like some form of startup issue that does not happen every time. Pulled power cord out of back of Tivo again for 10ish seconds plugged back in now working. Only difference between power cycles is the second time I let it run all the way through the startup video first time I did not. Doubt that made any difference but who knows.

    Will update if it happens again. My suggestion to anyone who has this happen is to power cycle until it works no other changes needed.

    Oh my dvd player has not worked for a long time.
  11. loler

    loler New Member

    Jun 3, 2010
    interesting for me, thanks
  12. kiwilist

    kiwilist New Member

    May 30, 2011
    @sakura - I suggest you to contact toshiba customer support, hope your problem will be solved.
  13. segaily

    segaily New Member

    Aug 2, 2003
    Well moved my TiVo and the issue is back. A couple power down power up tries did no good. I will spend a bit more time with it when I have more time and update.
  14. replaytv

    replaytv gun talk ignore list

    Feb 20, 2011
    Denver ish...
    I did have a problem similar to yours, and it was because my extra remote had something sitting on it and was turning up the volume to max. But that wouldn't fit your problem, as the batteries would have been dead long ago. Otherwise, I would suggest you search your model and make of TV on the internet to see if this is known problem. And if there is a 'known fix'.

    Most TVs (and everything else) are controlled by a microprocessor, and it appears that yours is confused. I would try unplugging it for awhile and see if that resets the system and solves your problem.
    Unless your TV is very expensive, then it would probably be more expensive to fix it than to buy a replacement.
  15. kkimes

    kkimes New Member

    Apr 5, 2005
    I know that this thread hasn't had a post for a while but just wanted to say I'm having the same 'searching for signal' problem on 2 different SD-H400 units. The one was working fined for several years until one day I got this message and nothing could change it. This was after Comcast went all digital but it had been working for some time with the little DTA box I had on it so I don't think they were related.

    The second box I bought off ebay for $25 because I was willing to take a chance that it might work. The seller had bought it at a estate sale and only knew that it would power up to the tivo screen. I thought it was very strange that it would have exactly the same problem. So I suspect it is something else.

    I'm going to take it to my son-in-laws house when I get a chance and try to start fresh. He only has an antenna so I'll have to use his D2A box to get an analog signal. I'm continuing my search to see if anyone has come up with a definitive fix for this problem.
  16. Lakertime

    Lakertime New Member

    Jan 27, 2004
    Ventura, CA
    I'm having the same issue, and can't seem to find a reason why or a fix for it.

  17. Maris

    Maris New Member

    Oct 22, 2011
    I'm having the same issue :/
  18. segaily

    segaily New Member

    Aug 2, 2003
    Just realized I never updated My box has been working fine again since the end of July. I kept never getting around to looking at the box and had left it unplugged. My wife finally decided to give it a try. I am not sure how many times she unplugged and plugged it in again or how long she waited between power cycles but she got it working and it has been fine since.
  19. unitron

    unitron Active Member

    Apr 28, 2006
    semi-coastal NC
    Let me just throw this out there for future searchers with this problem.

    A flaky power supply can cause all sorts of strange symptoms and it's a good idea to make sure yours doesn't have capacitors that have failed.

    Search this site for the phrase "capacitor plague" and you'll find posts of mine with further details.
  20. woolyster

    woolyster New Member

    Dec 6, 2008
    argh! just got an sd-h400 off ebay and the inputs appear to be all kaput. guess i'll try 97 power cycles and system clears and report back.

    did a total reset/clear, about 4 GS's... 5 unplug power cycles.... no joy. and...i don't see an option to try the s-video or RF from my channel master. looks like tivo only supports composite video. !!??? is this so??

    double argh!

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