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Toshiba SD-H400 - Is the tuner dead?

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

  1. Dec 13, 2012 #81 of 120
    unitron

    unitron Active Member

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    Let me make sure I understand.

    Your digital transport adapter has an F-81 fitting (threaded thing) for co-axial cable for input from the cable company and the same thing for output to something with an analog tuner, and you set a switch on the back of the DTA to either channel 3 or channel 4, and tune the analog tuner (whether it's in a television or a TiVo or a VCR or whatever) to the same channel (3 or 4) and then change the channel being received by the DTA with the DTA's remote or buttons on it, or you let something impersonate the DTA's remote?

    Correct?
     
  2. Dec 15, 2012 #82 of 120
    DM3MD157

    DM3MD157 Member

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    Yup! That is correct. I have used both the coax output and RCA output from the TiVo to the TV. At first I thought the coax input on the TiVo was blown, but when I used the RCA input on the TiVo and still didn't get any input signal.
     
  3. Dec 15, 2012 #83 of 120
    unitron

    unitron Active Member

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    I should have said F-61, that's the kind with the threads on one end and a soldering point connected to the inner conductor on the other end and is made for panel mounting. The F-81 is threaded on both ends--it's a coupler.

    So you have a TV that can tune the old analog channels 3 and 4, and if you hook the digital transport adapter straight to the TV's tuner and tune the TV to either 3 or 4 you can see what the DTA is putting out as a channel 3 or 4 signal?

    Does the back of your DTA look like the picture here:

    http://blog.trebacz.com/2010/03/comcast-dta-digital-transport-adapter.html

    RF IN RF OUT 3-4 Switch IR IN Power IN

    and no RCA outs? (yellow, white, red)


    or does it look more like this?

    http://www.ebay.com/itm/Comcast-Xfi...2099?pt=US_Cable_TV_Boxes&hash=item35c27ee273

    Look soon before listing is removed

    Or does it look more like this:

    http://www.wirelessgoodness.com/201...al-transport-adapter-hd-dta100u-hits-the-fcc/


    Do you have an old VCR ?
     
  4. Dec 15, 2012 #84 of 120
    DM3MD157

    DM3MD157 Member

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    Nov 29, 2012
    I believe it's the Pace DC50XU judging from the pictures on the internet. There is only coax in and coax out, no HDMI/Composite/Component.

    That is correct, if I hook up the DTA directly to the TV and turn to channel 3/4 the picture comes in with no problem. I even hooked up the composite connections from my downstairs DVR to the inputs in the TiVo and it still didn't display any picture. The TiVo says "searching for signal" or something to that effect when I try to watch live TV.
     
  5. Dec 16, 2012 #85 of 120
    unitron

    unitron Active Member

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    I don't suppose your DVR has an "antenna" type output (threaded thingie, channel 3-4 switch)?

    Does anything in the house have that?
     
  6. Dec 16, 2012 #86 of 120
    DM3MD157

    DM3MD157 Member

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    My DVR has a coax output (the same threaded antenna connector as the input). There is a 3-4 switch on the back of the TiVo. Not sure if I am answering the question?
     
  7. Dec 16, 2012 #87 of 120
    unitron

    unitron Active Member

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    I meant to say DVD.

    Didn't you mention having a DVD player somewhere upthread?

    I'm trying to see if you have some source of analog channel 3 or 4 signal (other than the DTA) whose output can be connected to the TiVo's RF input.
     
  8. Dec 17, 2012 #88 of 120
    DM3MD157

    DM3MD157 Member

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    No DVD player other than the one that is built into the TiVo. I do have an old mono VCR somewhere in the closet.
     
  9. Dec 17, 2012 #89 of 120
    unitron

    unitron Active Member

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    If that VCR can get an analog channel straight off of the cable telling you there aren't any analog channels on their cable system any more ( :D ), that'll work, as long as it can output it as an analog channel 2 or 3 or 4 signal.


    I want something other than the DTA feeding the TiVo an analog RF signal while you tune the TiVo to channel 0, channel 1, channel 2, 3, 4, 5, 6, etc up to 13.

    No RCA involved unless you want to connect the TiVo's output to the TV set's input that way, but you've got to be able to see TiVo menus and previously recorded stuff in the Now Playing List on the television set before starting the experiment.

    If no joy, you may need to open up the TiVo and open up the tuner module to check to see if the connection to the F-61's center conductor is broken or melted/fused (in the blow a fuse and break a circuit sense, not the melt two things together sense).

    The RF input to the TiVo is straightforward and easier to troubleshoot than the RCA inputs.
     
  10. Dec 18, 2012 #90 of 120
    DM3MD157

    DM3MD157 Member

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    I don't think there are any analog signals coming out of the wall. Perhaps playing a video tape would suffice? I already opened up the tuner module, at least the sides. I saw no loose connections or burnt resistors. The strange thing is that the RCA inputs also do not yield any video as well. And when I try to run the video settings the default connection it tells you to use is RCA.
     
  11. Dec 20, 2012 #91 of 120
    jwood6203

    jwood6203 New Member

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    Dec 19, 2012
    I had this issue and used photobrian's method to fix. Thank You BRIAN!

    I've used a coax hookup for years, but when the Tivo stopped working the system info page showed it was trying to use composite hook up. In the change hook up page it would not acknowledge that I had a coax option. The composite (red, white, yellow) hook up wouldnt work. After many restarts and failed efforts to make it work I got the "digital to anolog box" out of the basement ( I knew I saved it for something). Hooked up an antenna, had it find a working channel, hooked the box up to the coax on the tivo input and did a restart. Once it was up I went to the video hook up change page and it allowed me to switch to coax input.

    Thanks again!
     
  12. Dec 20, 2012 #92 of 120
    DM3MD157

    DM3MD157 Member

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    Nov 29, 2012
    What is the digital to analog box? Is it a Digital Transport Adapter? What antenna did you use? If you could kindly go into more details it would greatly be appreciated!
     
  13. Dec 23, 2012 #93 of 120
    klalex

    klalex New Member

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    Nov 14, 2006
    Well, it's Christmas Eve Eve and all I want for Christmas is my living-room TiVo unit to get its Basic Cable In signal back. Oh, ho ho ho, I've had this issue before. Here in Oklahoma we have extreme weather, which is regularly accompanied by power outages. You all know what that means. "No Signal on: Basic Cable In." I have two SD-H400's that are about 8 years old. One is finicky to power outages, and it took rebooting with prayer to get it back online so a couple thunderstorm seasons ago, I bought myself a $40 UPS (uninterruptible power supply) for my living room TiVo. I have had no issues since ... until Friday morning. I went to bed Thursday and all was well, but when I got up Friday and turned on my TV there a vertical line through the display and the image was offset to the right about 25 percent. I wasn't sure if that was a TiVo or TV issue so I decided to test the TiVo in the bedroom. It worked fine. Then I moved the bedroom TiVo to the living room ... same problem. So, here I am three days later, and a good 6-7 hours of fiddling ... moving the TiVo's from room to room, changing cables, trying different inputs, etc. It's hard to diagnose this because both TiVos work fine in the bedroom where there is straight coaxial cable from Wall --> TiVo RF In, then a coaxial cable from TiVo RF Out --> TV RF In. Both TiVos work, record, play, etc in the bedroom on that older GE TV. But BOTH units give me that damn message of "No Signal on: Basic Cable In" and black image behind that in the Living Room when hooked to my newer RCA TV. I have a Coaxial cable split from WALL to Digital In, and from Wall to TiVo RF In. I then have COMP 1 connected using the Red/Blue/Green cables, and the Audio cables. Not sure why this is what it is, since I don't have digital cable any longer. Must have just been left from when I did have digital. This is exactly how it was connected and working when I went to bed Thursday. Before messing with it I took photos of the back of the TiVo and the TV to make sure I didn't get them confused. Even after running the RESET SYSTEM, no change. I tried programming a few minutes of recording and hooking the TiVo ONLY to the RF In from the coaxial/wall, (and running Settings again) but still no image received. I've tried everything, and restarting, Settings, etc. Strangely, in all of this, the image on my TV which had that line through it on Friday is now fine. ... ANY IDEAS? I am going to put the TiVo on Standby overnight, and the 2nd unit in the bedroom is on Standby now. It's just frustrating that they both work in the bedroom and neither gets the signal in when in the living room. Frustrating. Frustrating. Frustrating.
     
  14. Dec 23, 2012 #94 of 120
    unitron

    unitron Active Member

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    Take the GE into the living room, disconnect the cable input from the splitter and hook it straight to the GE and see if you still have basic analog cable on that line.
     
  15. Dec 24, 2012 #95 of 120
    klalex

    klalex New Member

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    Before moving the old/fat/heavy GE from the bedroom (And by "old" I mean I need some muscle to move it for me or I'll be explaining this to my back surgeon), let me add something that wasn't clear on the RCA reception:

    If I hook the living room's flat-screen RCA TV from Wall Coax --> Analog RF Input via Coax on TV (no splitter), I receive all channels clear and fine. Was your theory that no signal was coming from the Wall? It is - That was my first test on Friday. I should have mentioned that. IN ADDITION, if I hook up Coax Wall --TiVo RF In, then TiVo RF Out --> RCA Analog In, I get good signal(all channels, clearly) ONLY if I turn the TiVo to Standby, thus am turning the channels on the RCA TV itself. But as soon as I turn the TiVo power on (not of Standby) and and the TV to Ch 3 or 4 (tried them both), I get TiVo's "Searching...Basic..." message, black image behind.

    THere is no scenario that I receive a signal and can tune and turn channels on the TiVo. I still get the "Searching for signale on: Basic Cable In" when the TiVo is on. I can watch recordings, transfer between TiVos, etc.

    When I changed from Wall to TiVo, Tivo To Analong, I also re-ran the Setup again, to no avail.

    What else can I try? I could run the Reset System again on the TiVo in the bedroom that is working fine with that GE TV, then move it into the LR. But when it was working fine there on Friday, moving it just left me with this "Searcing signale, Basic Cable In" message and black picture. Again, they both work fine in the bedroom. Both work fine hooked Wall to TV, and both work on Analog running to TiVo RF IN, then RF Out to TV Analog for watching recorded shows, but not for getting a signal to record. I have to switch the (Antenna) option on the TV/controller to get signal when running through the TiVo and turn the TiVo to Standby.

    So, since there is definitely a signal coming from the wall to the TV, should I still move the TV from the bedroom and try this in the LR? It's so much easier to move the TiVos around that that large tv that must weigh 45 lbs.

    I'm open to any more input, pLEASE!

    Is it time for a FULL RESTART that will wipe out all the programs and SeasonPasses? I've transferred all the shows to the bedroom, and vice versa. Unfortunately, the one in the Living Room has 5 purchases movies, but I suppose I could transfer all the Bedroom shows to the Living Room (where the non-transferrable movies are). Or just forget about the movies.

    Any more suggestions? Would moving the big GE TV from the bedroom be of consequence since we know the signal is coming through the wall and coaxial cable just fine, both into/out of the TivO when it's on Standby, or direct to the RCA Tv.

    Thanks so much in advance for input.
     
  16. Dec 24, 2012 #96 of 120
    unitron

    unitron Active Member

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    Leave the GE where it is.

    If you were not getting analog channels on either TiVo in either room, I'd suspect the tuners or the power supplies (and you should suspect the power supplies anyway--read up on "capacitor plague" in S2s and S3s), but if the TiVos can tune in channels in one room but not the other, then perhaps the signal strength isn't as strong in the "bad" room, and the TV in there is better able to cope than the TiVos (possibly a better tuner, possibly TiVo power supply being marginal).

    Find where the cables to those 2 rooms are split from the main cable and see if there's a problem there.

    Were both cables installed at the same time, or is one much older?

    Edit to add:

    If you can get hold of a little portable tv, take it and the TiVo's to where the incoming cable splits and try both taps there to see if it's a bad tap or a bad cable connected to a good tap.
     
  17. Dec 25, 2012 #97 of 120
    klalex

    klalex New Member

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    Hey, THANKS for mentioning suspect power supplies. After moving the chunky TV (I had help) and having the same series of problems in the Living Room that did not exist in the bedroom, I considered the APC uninterruptible power supply as a possible culprit. So, I bypassed it and used an older power strip ... VOILA, all worked! I unplugged the UPS, replugged it in and tried it once again - PROBLEMS. So, I again used the power strip and no UPS, and again everything worked. So I hooked the big TV back up, and all the original cabling as it was, and it is all working now. The chunky TV is back in the bedroom. So, the culprit was the UPS that is less than two years old. This is an odd problem, but it is fixed for now. Of course, I no longer have UPS protection on the TiVo that needs it, so I'll order a new. Wow, what a relief. Thanks so much, UNITRON!! You're my hero Santa surrogate, and not a bit too late, considering I just heard the reindeer flying over. Merry Christmas!
     
  18. Dec 25, 2012 #98 of 120
    replaytv

    replaytv gun talk ignore list

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    Denver ish...
    When you replace the UPS, get a UPS that has a guaranty of protection against power surges/lightening strikes. Then if your TiVo gets 'cooked' they pay for a new one. Just because the UPS says it protects the TiVo isn't nothing if they don't say they will replace your covered item.
     
  19. Dec 25, 2012 #99 of 120
    unitron

    unitron Active Member

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    The UPS was preventing the TiVo from getting any channels on its tuner?!?!?

    If the UPS would let the TiVo boot but not quite work properly, then suspect the power supply inside the TiVo as well of being marginal, with the 2 marginalities added together equalling a non-tuning tuner.

    In other words, start thinking about capacitor replacements now.


    The only other thing I can think of is if you had the cable co-ax connected to a surge protector port on the UPS and then a short cable from there to the TiVo, that might be the cause of the signal drop just below the TiVo tuner's threashold of competence.
     
  20. klalex

    klalex New Member

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    Woke up this morning, and the issue is back as it was last Friday morning. Line through the TV when the TiVo is on, no Basic in, TV works fine without the TiVo, etc. After a couple power on/offs the line is not through the TV any longer. But, it's all plugged into the wall or into power strips, but not through the APC UPS. Dang nabit. It must be a power issue of some sort that has to do with the living room (power or something like that). Sad. Sad. Sad.
     

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