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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Motorola DCT6416 HDMI failure
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 |
#2
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Motorola DCT6416 HDMI failure
On Tuesday, November 4, 2014 8:27:51 PM UTC-5, fred wrote:
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 Most HDMI failures are either from corrupted firmware or a bad HDMI transceiver 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 causes the problem. HDMI ports are notorious for being whacked by lightning hits, and it doesn't take much. |
#3
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Motorola DCT6416 HDMI failure
"John-Del" wrote
Most HDMI failures are either from corrupted firmware or a bad HDMI transceiver 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 causes the problem. HDMI ports are notorious for being whacked by lightning hits, and it doesn't take much. 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. |
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