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Series 2 Tivo Caution!!
This is for Series 2 Tivo and Series 2 Directv with Tivo Owners: When looking inside your Series 2 TiVo, you will notice a white ribbon cable running from the front panel of the TiVo to the motherboard. It is a white ribbon cable that plugs directly into the motherboard.
NEVER power-up your TiVo with this cable either slightly or completely removed from the motherboard. It must be firmly seated when you power up the TiVo.
Here's the reason: Doing so can permanently damage your TiVo. In some cases, the TiVo will power up but will not respond to the remote. In other cases, the TiVo will not power up at all (and will just click). With the HDVR2 and, potentially, the other Series2 TiVos, even if you later plug this cable back in, your TiVo still may not respond to your remote.
Therefore, when removing the power cable and IDE cable from your TiVo's factory hard drive, be VERY careful of this cable. Do not dislodge it. If you do dislodge it, just re-insert the cable before powering up.
If your Series 2 Tivo is damaged due to this problem:
Warning:
Needs very good SMT component soldering skill. Please DON'T DIY if you never work on SMT before. Ask some one with the skill or bring your Tivo to an electronics repair shop let the technician do it for you.
Who need fix:
If you power up the HDVR2 with ribbon cable unevenly plug into CN10 on motherboard and found the Remote malfunction. Most likely you need this fix.
Cause:
HDVR2 use 3 pins IR sensor (in front panel). Pin1=+5V, Pin2=Ground, Pin3=IR signal out. For general circuit design, usually direct connects pin2 to common ground. But HDVR2 IR sensor pin2 goes through a ribbon cable and Inductor L30 on the motherboard side connects to ground. When ribbon cable unevenly plug into CN10, The contact pins on cable cause shortage between pins inside CN10. When power up the Tivo, DC current from shorted pins inside CN10 goes through Inductor L30 to ground. If enough current apply to L10, it’ll generates too much heat and burned open. The IR sensor pin2 will no longer connect to ground even you plug back the ribbon cable right next time.
Fix:
Replace L30 (inside red circle on the attached picture) with a new one (any value will work). If can't find any inductor, just use a thin wire short L30 will work.
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