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ir blaster drops final digit

Discussion in 'TiVo Help Center' started by SanFranGun, Jul 9, 2012.

  1. SanFranGun

    SanFranGun New Member

    48
    0
    Jun 24, 2003
    Madison, WI
    I recently resurrected my Sony svr-2000 and connected it with the help of Tivo telephone support. I'm sure that the ir code is the correct one. Nevertheless, the Comcast set-top box occasionally will fail to read the final digit that the dvr transmits. (I didn't think that the Discovery channel would have a show hosted by buxom ladies in heavy make-up agitatedly speaking Spanish.) To counter this, I taped BOTH ir blaster heads together (to double the effectiveness?) This seems to have worked but I was wondering if anyone knew where the receptor for ir beams is on the front of Comcast/Cisco/Scientific Atlanta set-top boxes. I can't find it by shining a flashlight at the front panel and looking for the reflection. Also, can anyone give me a suggestion on how far forward of the edge of the top of the set-top box the ir blaster transmitter should be positioned for greatest effectiveness? Finally, is there an add-on that can be purchased to boost ir blaster potency?

    Thanks.

    Oh, one last question which I hesitate to ask for its revelation of my stupidity. Can the Sony SVR-2000 be configured (with a Comcast set-top cable box [NOT a DTA]) to record one show while one is watching another? How?
     
  2. lpwcomp

    lpwcomp Active Member

    8,081
    2
    May 6, 2002
    John's...
    Could you possibly switch out the cable box for a motorola box that has serial control enabled and use that instead of the IR blasters?

    If you're talking about recording one thing and watching another live, the only way to do that is split the cable and have two cable boxes (one could be a DTA). One would be connected to and controlled by the TiVo. The other would be directly connected to the TV. Nothing to configure on the TiVo.
     
  3. GGray

    GGray Member

    47
    0
    Nov 15, 2006
  4. SanFranGun

    SanFranGun New Member

    48
    0
    Jun 24, 2003
    Madison, WI
    to lpwcomp:

    I didn't know that the other set-top box manufacturer made a box that enabled an rca connector.

    I was afraid that your answer (a splitter and two cable boxes) was the correct one.

    to lpwcomp & GGray:

    My set-top box has an ir port but I have read elsewhere that it is an output port rather than an input port and that it wouldn't work. Have either of you seen it in operation successfully?

    Thanks.
     
  5. GGray

    GGray Member

    47
    0
    Nov 15, 2006
    I didn't see your cable model number in your original post.

    Which cable box do you have?


    Gary
     
  6. SanFranGun

    SanFranGun New Member

    48
    0
    Jun 24, 2003
    Madison, WI
    to Gary:

    It's the "Cisco RNG 100".
     
  7. lpwcomp

    lpwcomp Active Member

    8,081
    2
    May 6, 2002
    John's...
    It's not an RCA connector, it is a serial connector that looks like this:

    [​IMG]

    The mini-plug goes into the "Serial Control" port on the back of the TiVo. The DB9 goes into the serial control port on the back of the cable box. See
    here
    for a list of supported boxes. Note also that serial control has to have been enabled by the cable provider in order for this to work. All I can say is that I have had several DCT2000s and serial control has worked on all of them, including the one I have right now. I am also on Comcast

    From the manual for this box
    This appears to be similar to what the DTA has, so the direct connect cable will most likely work. GGray would know WAY more than I do about that.
     
  8. GGray

    GGray Member

    47
    0
    Nov 15, 2006
  9. SanFranGun

    SanFranGun New Member

    48
    0
    Jun 24, 2003
    Madison, WI
    to lpwcomp & GGray:

    Thank you both very much for your prompt and helpful responses.
     

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