[mythtv-users] Black screen, audio, green snow

[Ian Evans]

On Oct 6, 2016 4:07 PM, "Gary Buhrmaster" <gary.buhrmaster at gmail.com> wrote:
>
> On Thu, Oct 6, 2016 at 5:58 PM, Ian Evans <dheianevans at gmail.com> wrote:
>
> > Who would you call a respected vendor. I think these are the specs:
>
> > 5V 2.5A regulated power adapter (higher A rating ok).
>
> The 2.5A is for the HDHR3-CC.  For the OTA
> HDHR3-US models, 1A is sufficient (although
> there is a old white model of the HDHR that
> needs 2A) according to the information at:
>    https://www.silicondust.com/forum/viewtopic.php?f=15&t=19204
> (and just for completeness, for the HDHR3-CC):
>    https://www.silicondust.com/forum/viewtopic.php?f=15&t=19203
>
>
>
> Delta, tdk-lambda are on my list(*) (so is Sony for
> the higher end power supplies, but they do not
> tend to do lower wattage designs).  Most of my
> supplies are actually built by those vendors for
> companies who do not want to have their power
> supply fail, and have customers who are less
> interested in the lowest cost per unit than not
> having failures in the field (which may require a
> dispatch to remote sites, which gets expensive
> real quick).  AFAIK, unless you are purchasing
> in quantities of six (plus) figures, none of the
> companies sell their desktop supplies directly
> to consumers.
>
> My "go-to" supplies (based on what is currently
> in my power supply storage box) for a 5V 2A
> supply(**) is the (real, not cloned/fake(***)) Delta
> ADP-10SB Rev H, and for 5V 4A supplies the
> EADP-20NB Rev C/D, all of which I choose
> primarily because I could usually find them(****)
> NIB at a local surplus store for a deep deep
> discount (note the models and revs matter, there
> are various form factors and power plugs and tips
> associated with the various variants; you may
> find other models/revs that would be better for
> your particular use case, but you need to do
> your research carefully to pick them, and no, I
> do not recall where the magic decoder ring is
> for the model and rev numbers).
>
>
>
>
> (*) Every manufacturer has had good and bad
> designs.  A brand is not a guarantee that you
> have chosen a good design, or that your sample
> is good.
>
> (**) I do not bother with 1A supplies.  I could get
> the 2A version sufficiently cheaply that it was not
> worth my time to try to store another type, and
> it avoids the (embarrassing) mistake of plugging
> a USB powered device into some 5V powered
> (arm) device and watching everything go sideways.
>
> (***) Unfortunately, because some miscreants
> know that some people will look for the name,
> they have chosen to create clones of a lessor
> quality (and usually a lessor price to attract the
> buyer).
>
> (****) Planning and patience is a virtue.  The
> local surplus store stock comes and goes.
> Since I knew what I wanted, and did not have
> an immediate need (again, I try to have spares
> available on cold standby, which is a nice way
> to say they are piled in a spare power supply bin),
> I could wait until they next got acceptable stock
> (in some cases, for some items, they never get
> additional stock).
>

Thanks as always for the detailed response. Will ask around for reputable
surplus stores in Toronto.
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