[mythtv-users] Issues with my HDHomerun: Resource temporarily unavailable

[Karl Newman]

On Sun, Jan 4, 2015 at 10:33 AM, Mike Carron <jmcarron at starstream.net>
wrote:

>
> On 01/04/2015 05:57 AM, Gary Buhrmaster wrote:
>
>> On Sun, Jan 4, 2015 at 3:32 AM, Ian Evans <dheianevans at gmail.com> wrote:
>> ....
>>
>>> The power LED is solid for hours at a time until a recording starts. So
>>> is
>>> it safe to assume that the increased load that occurs during a recording
>>> causes something in the wall-wart to, say, overheat and cause the HDHR's
>>> "reboot"?
>>>
>> The typical failure mode of these POS bricks is the cap
>> fails after a few years (heat related, usually), and you
>> get extremely high ripple voltages.  Random stuff then
>> happens (well, not random, predicable based on the
>> internal components and design)  Observed/Reported
>> symptoms include (random) resets, and signal lock/quality
>> issues.  If one opens the black POS adapter, you can
>> usually observe the bulging cap, and even replace it,
>> if one desires, but obtaining a high quality replacement
>> even for the cap can sometimes be hard.  Easier to
>> just replace the adapter.
>>
>> Personally I automatically replace all my provided POS
>> supplies with high quality switching supplies from OEMs
>> such as Delta within days of purchase just because I
>> like reliable power, but I have an advantage that I can
>> walk to a local surplus store (and 10 minute drive to
>> another) that sells them at huge discounts, so I do
>> not pay the manufacturers retail prices.
>>
>> Note that I do not know what availablity you have, but
>> the D-Link JTA0302B reportedly works (based on
>> reports of others).
>>
>> As I recall, these are the same supplies as used for
>> BeagleBone Blacks, so you might be able to find a
>> match based on that.
>>
>> Gary
>>
>>  ***
> Since I have 3 HDHR Primes and a cable modem that all use 5v power, I've
> been looking at something like this:
> http://www.circuitspecialists.com/5-volt-8-a-power-supply.html
>
> Any thoughts?
>

We have used a ton of 24VDC power supplies at work that look like those (I
think same brand). We've been quite happy with them, but be aware that they
will shut down (flicker) if overloaded. Also note that the terminals are
not very well protected and could be a short circuit or electrocution
hazard.

Karl
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