Searches here and there have me confused.  Believe you can't enter ILS frequencies on the VOR radio panel (pop up and in center console in VC), however, when I try to input them to the CDU as in post #3 in this other thread:
http://www.captainsim.org/cgi-bin/yabb2/YaBB.pl?num=1484252771

for some reason the keys don't work and nothing changes.  Mark has separately helped me use the CDU to import either an FSX FP  and/or input a simple "direct to" route.  I would now like to be able to simply tune the ILS landing runway frequency when approaching an airport (rather than adding this with all the longer CDU inputs on departure) so that the AP captures the loc and GS. 

Two posts below the link you provided, is another reply of mine, which explains how to manually enter VOR, and ILS frequencies, and headings/radials:


Markoz wrote on Jan 13^th, 2017 at 8:55am:

Open the CDU, and click on the NAV RAD button. There you can enter the frequencies, and course. LSK 1L = NAV1 Frequency LSK 2L = NAV1 Course LSK 1R = NAV2 Frequency LSK 2R = NAV2 Course LSK 4L = ILS Frequency LSK 5L = ILS Course

Thanks Mark.

Problem is that when I press any of these keys, nothing happens.  Is that because I have (or don't have) already an FSX FP loaded?

Are you entering the frequency into the scratchpad area and then pressing LSK 4L, or are you pressing LSK 4L before entering the frequency? Has to be done the first way. Also, Also, if you choose an ILS arrival procedure on the fmc, it will enter the ILS frequency and course for you.

Thanks Sidney.

Have tried it both ways but realize the right way is to enter the frequency first in the scratch pad.  Is it possible I am not entering in the right format?  Very little in the manuals - and tutorials - on these kinds of details that make a big difference.  NB: I am looking for a method to enter an ILS at the end of a flight - ad hoc - rather than in the full CDU programing before departure.

Sorry I can't be of more help. I just tried entering an ils frequency with no other data entered into the FMC aside from the location. It worked fine. What happens when you try to enter a frequency? Do you get an error message?

I was very disappointed with the lack of any documentation on programming the FMC.  >:(

OK, good news.  Followed your advice and now can enter the ILS frequency into the CDU.  The next problem however is that while the plane captures the localiser each time it does not catch the glide slope.  In the PFD I see a green "ALT" which means the Alt hold is still on (I can't click it off actually) and under it in smaller white letters it says "gs".  I also don't hear the usual ILS beeps.  Any suggestions?  In other simpler aircraft the alt hold automatically switches off when you capture the GS.

Sounds like you armed the approach mode on the mode control panel of the autopilot. Is the nav display mode selector on APP?
That's the only thing I can think of...I'm not having any problems with capturing the glide slope.

Yes I pressed the APP on the AP.  Do I need to do something different (press LOC first)?

Wish I could figure out how to attach an image on this forum.  :(

The nav display mode selector knob is on the EFIS control panel and lets you choose APP, VOR, MAP OR PLN mode. Are you setting yours to APP as well as pushing the APP on the AP? I don't know if this is the problem, but I can't think of anything else to try.

No I have not been setting the EFIS to APP - that's probably the problem.  Thanks Sidney.  Are you the same Sidney who has made all those great hangars and other scenery library objects?

Yes, that's me.  :)

SOLVED: Just to report back, I finally got a moment to test this and yes it worked and captured the loc and gs. I believe it was also not having the EFIS set to APP and possibly also I was arming the APP button too late. Engaging it around 10nm rather than closer (in the green arrow on the GPS) may also been the problem.  Thanks for your help!

Glad to help. Yes, that's way too late to arm the APP mode. Ideally you'll be in level flight on a heading to intercept the localizer, and below the glideslope. That's the time to arm it. Your heading should be such that you intercept the localizer first, then the glideslope. If you intercept the glideslope first, the AP will most likely not capture it.

expat wrote on Feb 10^th, 2017 at 12:14pm:

SOLVED: Just to report back, I finally got a moment to test this and yes it worked and captured the loc and gs. I believe it was also not having the EFIS set to APP and possibly also I was arming the APP button too late. Engaging it around 10nm rather than closer (in the green arrow on the GPS) may also been the problem.  Thanks for your help!

It has nothing to do with setting the EFIS to APP mode. I rarely use APP mode on the EFIS, yet the 777 captures the LOC and Glide Slope. If it doesn't capture the GS, it's usually because I have pressed APP on MCP (AP) after the aircraft has dropped below the GS (usually because I have forgotten to press it in time)!

Mark,
Thanks for clarifying this (it's not the EFIS Approach button).  I have been for over 10+ years engaging LOC/GS way too late/close to the runway.  Do most typically find the localizer around 10nm out?

The Localiser should appear at around 25nm, or 30nm, out and I select APP mode when I see that I'm getting close to capturing the Glide Slope.

Hi there
And where is the button to turn on the VOR/ILS beeping when in range??
Or the button for the markers?

Thanks
Omid

On the audio panel (Aisle Consol) you turn the VOR/ADF Receiver Selector knob to VOR L, or VOR R, then press the cylindrical button to the right of it - See the attached image.

---