I have a great surge protector which worked well on the 120 AC power. However, I was wondering if something like the following HDMI specific surge protector would work for me in the future: http://www.amazon.com/ViewHD-HDMI-Surge-Protector-Protection/dp/B009EVNR1U%3FSubscriptionId%3DAKIAIAA4MWUJXHBYFRNQ%26tag%3Dsquid1648182-20%26linkCode%3Dxm2%26camp%3D2025%26creative%3D165953%26creativeASIN%3DB009EVNR1U
and this thread
and this thread
and this older thread which really only slightly touches the subject
and each one states that unless you took a lightning strike directly onto the HDMI cable (or circuit board), that the surge did not originate with the HDMI cable. It originated outside of your house and came in through some path. Now that path could be the AC line but more likely it is a cable, antenna or satellite. Do you have a surge protector on that line?
You'll also note in the above threads that a surge protector on the HDMI line would likely degrade your HDMI signal since the high speed data transmission line is designed for a specific electrical characteristics and by adding a surge protector you'll end up changing those characteristics. So, if you find one (and there are a few manufacturers that will make whatever someone says they want) you may find you do more harm and not much good (if any).
The key is to protect every line coming into your house from the outside and not those lines that are just inside your house.
I did read those articles you linked already before I decided to post. None of them were specific to my situation.
My current surge protector does have protection for the incoming Comcast cable to go into. I was advised in the past not to use it due to signal degradation.
The other choice is that your AC surge protector didn't protect as well as you thought it would.
Bottom line is that unless the HDMI circuit was hit directly, then it's just a symptom, not a cause.
Comcast tells me they do not recommend surge protectors for their incoming cables. They mess with the signal.
Another thing you could do is to get Comcast to check the ground. Most of the technicians will know what to look for.
I used to have an HDMI splitter on the HDMI out from my Comcast cable box. Every time a lightning strike hit remotely close by the splitter would fry. I went through FIVE! of them, and all of my components are on a good surge protector. In the last week I've gone through TWO! set top boxes (HDMI ports fried) due to lightning strikes. No problems with any other devices - just HDMI ports and cables. How did such an ridiculously fragile technology ever get approved for the consumer market!?
You are the exception not the rule or else HDMI would not be so prevalent (even if most of us wish there was a different way). The warranty repair costs would be too high for manufacturers if HDMI were that fragile in most installations.
Your system's problem is not the HDMI port. It's why a surge is getting in so often from Comcast. Have they checked the cable ground? If not call Comcast and have them send a tech out. Do you have a surge protector on the cable input? Those are available as part of many AC surge protectors.
- Sony television
- Sony PS3
- Pioneer receiver
- Epson Projector
All of these components seem to work fine otherwise, except none of the HDMI ports work. Considering I have invested several thousand dollars in this system, and it is all well past warranty, I am very much hoping that my home insurance will cover this!!
The main point of this lengthy reply is to confirm that a nearby lightening strike can, in fact, wipe out HDMI ports. Every HDMI device I had connected to my system (with the exception of my cable box) has had its HDMI ports destroyed (no visual damage, but they will no longer conduct signals).
Next search will be for solutions to prevent this once I have the system replaced!!
In the last year I have lost 3 HDMI splitters, 2 HDMI switches, and the HDMI input has failed on 1 television and my HD projector. All related to lightening storms in the area but no strikes to the house. I'm pretty sure that my issues are related to the fact that I live in a trailer and the long HDMI cables run through the floor and then run along the ground before running back through the floor to the receivers. Lightening strikes nearby can cause a spike creating a different of potential between the ground and the metal frame of the trailer even though the trailer itself is grounded. I am going to get the cables off the ground and hopefully that will help.