Motorola DCT6416 HDMI failure

- F
- fred
  
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posted
9 years ago

Wed, Nov 5, 2014 1:29 AM

The HDMI port on my Motorola DCT6416 suddenly stopped working. The composite Video still works ok. Searching for HDMI failure on that model comes up with plenty of hits (seems to be a common problem), but I cannot find anything on what the exact component(s) are that fail. I opened it up and checked for any visible problem, but didn't see anything obvious. Has anyone dealt with these DVRs or can provide any idea of what's involved, or if it is even worthwhile trying to get it fixed? Thanks

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- John-Del
  
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posted
9 years ago

Wed, Nov 5, 2014 12:44 PM

Most HDMI failures are either from corrupted firmware or a bad HDMI transce iver chip. Follow the fine foil lines from the HDMI jack to an IC. Get the number off it and check on line for the datasheet. That's what usually cau ses the problem. HDMI ports are notorious for being whacked by lightning h its, and it doesn't take much.

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- fred
  
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posted
9 years ago

Wed, Nov 5, 2014 4:32 PM

The DVR menu says HDMI ENABLED, but not ACTIVE. The re-activation didn't help, and my cable provider couldn't (or wouldn't) tell me where they get their rented DVRs repaired. Since I own the box, I phoned around for estimates, but none had ever fixed any of these, and so they told me that the repair cost would likely be higher than buying a new one.

If I knew for sure that a particular chip was defective, I would probably try replacing it myself, but I think it makes more cost-efficient sense to just get another one. Appreciate your reply.