Does the W1 have infrared abilities?

it might be cause of open infrared diode or shorted

This has about 5 different conditions, so let me start somewhere.

Pretending your 7731 is connected to a recent Panasonic KSU, like a TA series, you have the ability to set the time by hand, or CID delivered in the first call after 2 or 3 AM will do it. If the sender is still on standard time (typical with VoIP delivered CID), then it will reset the clock to a different time (-1 hour) every day and it will be noticed if you set the clock and the first call of the day follows.

In addition, via programming from the main phone, you can set manual or automatic switching for day, night, and lunch modes. That procedure is outlined in the Programming Manual for your system, but it involves setting the clock times in Maintenance console 1.4 or programs 006 and 007.

If you absolutely want to never have to deal with clocks or night mode, then set 006 to manual and dial 781# on the intercom from the main phone (x101).

Note that this is only the solution for TA series KSU's.

Some camcorders have the ability to see infrared. This is broadcast as a red light spectrum, but you cant see it, kind of like a rainbow but you can only see them at vertain angles. Some remote controls are this way as well. A good way to check to see if your camcorder can see infrared light is to go in total darkness. have your camcorder turned on, (or hooked up to the tv and turned on) either way so you can actually see either the view screen or the TV. Aim the remote control, (preferably not the cameras remote but rather say a dvd or tv remote) and press and hold a button. If you see the light light up say when you press the pause button on the DVD remote you should see it light up on the screen. If this is the case you can purchase an infrared light so you can shoot in the dark. If you have a full moon this will help as well. Since the light spectrums are not the same most infrared on camcorders show up as green and the blacks of your eyes glow white. On higher end camcorders they compensate for this and make it grey instead of green. But most the stuff you see at night is green.

You can find the setup and installation manuals here. Just select the Echo-W1 / W2 from the list and download.

here is some info may help you
coleman = Hunter
g   =  g
y1 =  y1
     =  y2 (second stage you don't have it on your system)
r    =  rc/r (leave the jumper bewteen rc/r)
x   =  c
w1 =  w1
w2 =  w2
a   =  o
     =  b
the "b" terminal is to energized the revensing valve on heat mode
the "o" terminal is to energized the reversing valve on cool mode

The SSC-CD73V and SSC-CD73VT cameras
offer a “Day/Night” function to provide
optimized sensitivity in both day and night
shooting scenarios. As the scene illumination
reduces and the acquired image darkens, the
infrared cut filter is automatically removed and
the camera switches to B/W mode, requiring
only a minimum illumination of 0.2 lx.
Incorporating an optimized lens for the
“Day/Night” function, the camera can produce a
clear and crisp image under normal illumination
or when used with near IR illuminators. In
addition, “Day/Night” modes can be
automatically switched, or manually initiated on
demand through an external control signal.

Probably you are using the M mode or manual mode for taking the pictures. this shouldn't happen in Auto mode. The exposure time is set to maximum and the camera behaves as it shoot during the completely dark environment - trying to stay "open" to absorb as much light as it needed for the picture. If you are trying it during the night you will be more satisfied with the result - 30 seconds of "capturing" on the screen, a tripod and you are goimg to have exellent night shot. I had the same problem, just because I haven'got read the manual for the camera first. My advise is to check in the manual what is written for the "M" mode. Hope that I help.

NO!...

You might try the free exif viewer: http://www.opanda.com/en/iexif/index.html Once installed, just Right Click on your image and select View Exif

It has Multi AF, Center AF or fixed focus. The V1 i had went to 800ISO, if you turn the ISO up a little more may you can set a faster shutter speed. I think the only priority settings are the "scene modes" there may be an action ssetting in the scene modes.