[mythtv-users] HDHR3-CC tuner 1 not subscribed

[Mike Perkins]

On 27/08/16 15:22, Gary Buhrmaster wrote:
> On Sat, Aug 27, 2016 at 1:03 PM, Aaron Klein <klein.aaron at gmail.com> wrote:
> .....
>> I am wondering if anyone else has run into this kind of issue where one of
>> the three tuners just stops recording.
>
> While the HDHR3-CC supplied power adapter are better than
> some others (that SiliconDust provided), when "random stuff"
> happens (especially when the poster mentions "several years")
> with any of the HDHR devices, I usually recommend trying a
> replacement power adapter as the first step (because it is
> usually easy to try).  You should check on the existing
> adapter, but as I recall, that is a 5V 3A supply (the specs,
> again, as I recall, call for a 2.5A supply, and for testing
> purposes, you can use a 2A supply, as there is no (known)
> Tuning Adapter that actually utilizes the 0.5 amp from the
> USB port that the spec allows, even if you had a Tuning
> Adapter (and Comcast does not use Tuning Adapters in most
> locations)).  If it is the power adapter, you can source locally,
> or SiliconDust will sell you a replacement at a nominal cost
> (open a ticket with them).
>
> The next thing to try would be to replace the CableCARD
> (and perform the validation) in the case the CableCARD has
> gone sidewise.
>
> And if those fail, I would ensure that the device is sending
> diagnostics to SiliconDust, reproduce the issue, and open
> a ticket with them so that they can examine the diagnostic
> logs.
>
A thing you should remember is that there are no physical tuners inside that box. All that is 
happening is that software is able to provide up to three separate streams to you from the many 
available on the input side.

So, when you say that Tuner 2 is non-functional this is almost certainly a software or configuration 
fault. (The cablecard itself also contains hardware and software.) I couldn't say how this can be 
resolved but the two main things to look at are as Gary mentioned above: Comcast or your power supply.

-- 

Mike Perkins