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Thread: What chip contains the service number?

  1. #1
    Join Date
    Feb 2003
    Posts
    155

    What chip contains the service number?

    My Series4 has very low signal strength on both tuners. Started after a nearby lightening strike. Everything else works fine, I can get a picture if I amplify the signal a good bit, but even with the amp, the levels are still only in the 30~40 range.

    I plan on buying a new Series4, and trying to repair the damage to the analog section with parts from the new unit. But perhaps it would be better if I could just replace the digital IC, that contains my lifetime sub information. I was thinking if remove the IC from the damaged Tivo, and transplant that into the new one I could retain my service number and subscription status.

    Would that work?
    What chip would that be?
    Are there any other components that would be involved?
    Would the old HDD work in the new unit, once I transplant the device?

    Thanks for any adivice or tips on this situation.
    Si me rogas, potes abire et tu ipse cacare.

  2. #2
    Join Date
    Jul 2007
    Posts
    201
    Quote Originally Posted by Tiros View Post
    My Series4 has very low signal strength on both tuners. Started after a nearby lightening strike. Everything else works fine, I can get a picture if I amplify the signal a good bit, but even with the amp, the levels are still only in the 30~40 range.

    I plan on buying a new Series4, and trying to repair the damage to the analog section with parts from the new unit. But perhaps it would be better if I could just replace the digital IC, that contains my lifetime sub information. I was thinking if remove the IC from the damaged Tivo, and transplant that into the new one I could retain my service number and subscription status.

    Would that work?
    What chip would that be?
    Are there any other components that would be involved?
    Would the old HDD work in the new unit, once I transplant the device?

    Thanks for any adivice or tips on this situation.
    On the Series 2, and, I think, the first Series 3 (the TCD648xxx), it was an Atmel chip, referred to around here as the "crypto chip" (I did a successful transplant on a Series 2 dual tuner to rescue 2TB worth of recordings), but I think somebody said that starting with the Series 3 HD and HD XL, the crypto chip was built into some other chip that would be about 100 times harder to swap. Tried to find the particular post but couldn't. You could try searching through all of Omikron's posts.
    Too busy TiVo wrangling to watch television anymore.

  3. #3
    Join Date
    Jul 2005
    Posts
    574
    TiVo began storing the TSN on the CPU beginning with the TiVo HD, so the only way to to move TSN's between units is with an IR rework station and BGA reballing kit.
    .-=Omikron=-.

    TiVo Series4 Premiere Development HERE

    Do you have a PROM related question? Check HERE and HERE before sending me a PM. Any questions that have already been answered will be deleted if sent via PM.

  4. #4
    Join Date
    Jul 2007
    Posts
    201
    Quote Originally Posted by Omikron View Post
    TiVo began storing the TSN on the CPU beginning with the TiVo HD, so the only way to to move TSN's between units is with an IR rework station and BGA reballing kit.
    So basically if you need to move a TSN on an HD or newer, you're balled?
    Too busy TiVo wrangling to watch television anymore.

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