On Sat, 8 Feb 2003 19:12:52 -0600
Karl Bongers <karl@...> wrote:
> A while back I debugged a problem with a JVC/Echostar dish box.
> The timing is similiar to what you list, same as in remotes/jvc/JVC_4700.
> The problem was the box required at least 2 sets of signals
> with a very exact gap between them. If the gap was not exact,
> the box would not accept them.
For the purposes of simplification, I felt i oughta point this out.
All Dish Network receivers are of Echostar design and manufacture. All of them.
No matter what name got printed on the front. Well, there was an RCA model in
the very early days that wasn't. I've never actually seen one or heard of anyone
actually still owning one. I think it's utterly obsolete at this point.
Also, the 2700, 3700, 3800, 3900, 4700, and 4900 all use the same board, same
remote, and essentially the same software. The 4700 and 4900 are actually
physically identical, and with recent software updates they have the same
feature set, and even both say "4900" in the system information screen
regardless of what it says on the back of the box.
The 3000, 4000, 4500, and 5000 are Mips based rather than STMicro based, and
thus use different software. Except for the rare 5000, they suck, and hardly
anybody uses them. I believe they respond to the same remote controls.
Until recently, there were really only three common Echostar remotes. The grey
button remote, the blue button remote, and the UHF remote. They grey button and
blue button remotes send the same signals but have a different layout and the
blue one is prettier and easier to use. The UHF remote is identical to the
regular blue button remote in every respect except for the fact that it also
transmits the control signal as an RF signal that has a range of, oh, a hundred
feet or so. The 4700 and 4900 can use RF or IR, the 4500 is limited to RF only
unless it is modified by the owner. the 4000 may have the same limitation as the
4500, I don't remember.
There's also a JVC Digital VHS recorder that i think is more or less a model
4500 at some point internally, but it was very short lived and is very rare. The
only one i have ever seen (or even heard of someone using) is in what passes for
an employee lounge at the Dish Network repair dock in Orem, UT.
Models 7100 and 7200 (which are really the same model) have had three different
remotes - an "old style" remote and a "new style" remote, and a "PVR" remote
with extra buttons for video recording. The PVR remote was short lived, as was
the old style remote. a 7x00 receiver will respond to an old style remote until
it starts receiving signals from a new style remote, and then will no longer
respond to the old style remote. You can reset that behavior back to old style,
but it will still switch back to new style the first inkling it gets that you
have a new remote. I believe the 'old style' was identical to WebTV remotes. I
don't actually know. The PVR remote is a new style with some extra codes.
Models 301, 501, 508, 701, 6000, and i think there's a 9000, I don't know much
about. They're newish, and what i have here is a 4700 and a 7100. I think they
have new remotes, but i think they also respond to the old blue and grey button
remotes, but not the 7x00 remotes, naturally.
Hope that, er, clears things up :)