or Connect
AVS › AVS Forum › Gaming & Content Streaming › Microsoft UltimateTV PVR › UTV and Multiswitch
New Posts  All Forums:Forum Nav:

UTV and Multiswitch

post #1 of 17
Thread Starter 
I have a single horn dual LNB unit that I have added a multiswitch to a few years ago. I just bought an UTV and finshed running the second cable to the unit. While I thought I tested both tuners when I bought the unit (used), it looks like Tuner 1 is failing. I did the advanced setup and made sure the UTV searched for the multiswitch. When I first got it, I seem to recall that the unit acted kinds funky when I swapped cables to test it. At one point I had to let it sit and rerun the system test to get it to detect the single cable switch from one tuner to the other.

Question to everyone / anyone, does it matter which lines from the multiswitch get run to which tuner? I have drywalled over the multiswitch and really don't want to cut in an access hatch just to swap cables.

My cable runs are good, both support Tuner 2 when individually connected. Signal strength is 86 to 90. The lower strength on one is due from rerouting from another drop I had added when I finished the basement.

Thanks.
post #2 of 17
Bad Luck with "walling" in your Multi-Switch. Not a good idea with Electrical Junction Boxes either. (Usually against code.)

Since you can't "test" the Multi-Switch your best bet is to swap cables at the LNB and see if that changes results. If you can run "by-pass" cables from the LNB to UTV... (If you can setup a TV/UTV combo next to the outside LNB that might be the simplest/easiest "test" bed.) that can rule out any Multi-Switch concerns...

I'm not sure how your "walled" Multi-Switch is wired but if the switch has a feed from both sides of the LNB... you should be OK running cables from any of the output ports.

You should try a reboot/reset (12357) and see if that brings back your "dead" tuner. You don't mention what if any Signal Strength results are after getting a "Failed" System Test. You might get some intermittent "spikes" or by testing other transponders get better results. (Which could narrow down the problem, if it's Multi-Switch related)
post #3 of 17
Thread Starter 
Thanks for the input on the mutiswitch lines. My fear was if the lines had to be the same pairing split from the multiswitch as from the original from LNB. The reset code still finds me with a failing Tuner 1. Is one more susceptible to failure than the other?

I always intended to add an access hatch to the multiswitch since it is also near my phone block. Those plastic cut in units at the home center are actually a little steep for not a lot opening. I will probably cut out a square piece drywall and just trim out around it, using it as the hatch.

The drywall cutting will raise a little more excitement around the house. Good to have a week or so in between it and the second cable pull.
post #4 of 17
My experience has been "Tuner 2" is typically the "failing" tuner... But that isn't always true. So I'm not sure you can tell much by having 1 vs 2 "fail".

If you have a Voltage Meter you could try and see if you get the "high-low" voltage (13-18volts? Is that right? Check the FAQ?) for Even-Odd Transponders on the tuner.
post #5 of 17
Do you know what version of the utv software you have?

As I recall, 3 versions ago there were big problems with multi switches. I know, because I experienced them until I did an upgrade of the utv software. I forget the exact symptoms, but I do recall something about the tuners not both showing up.

Since you bought a used unit, it might have been sitting for a long time and has old software. I think the latest version is still in the stream, so it might just correct itself if you leave it connected and powered up at night.
post #6 of 17
Excellent point. I hadn't really picked up that the UTV is a recent acquisition. UTV OS is 3.8 . If you want to force a download via the modem... you can try UTV code 8675309.

If you haven't really recorded anything on the UTV yet... you might try "restoring" the UTV to an "out of the box" configuration with UTV Code 2355 2355 (on UTV OS 3.5 and later? earlier versions the code was 5532 5532 I think. The FAQ has a list of UTV Codes). The "restore" code will delete all previous settings/recordings and leave the UTV OS in it's "default" configuration. You might try this to verify that it isn't software related "glitch" causing the problem.

The only other big "software" fix would be to upgrade the UTV's Hard Drive and download the UTV OS from scratch (via download or PC). Yet Hard Drive replacements usually don't fix UTV "Tuner" issues.
post #7 of 17
Thread Starter 
Yes the unit is used. It did show up with version 3.5 originally, but upgraded iteself the first night. I used the unit with one line for approximately two weeks before having a chance to complete the second cabe pull.

The software reset might still be worth a try. The unit currently reports to have software version 3.8 (v28230). The advance setup under dish pointing, appear to allow for checking for a multiswitch. It's test reports input on 13V and 18V, for what that is worth.

I'm pursuing a couple of opportunities to purchase another unit. Sounds best to have another onhand anyway. I'll get more adventureous on the harddrive side with this one once I have known good unit in hand. Might need a trip to CCS.

Thanks.
post #8 of 17
So with the Multi-Switch 13v/18v test... it's "good" with BOTH tuners or just "tuner 2"?

I mentioned on another topic that the advanced Multi-Switch test was able to "acquire" a signal on a "flaky" tuner that one of my UTV has. (Tuner was OK but it didn't like being disconnected "Live" and had trouble reacquiring signal and "failed" until a Multi-Switch Test was completed and "forced" it to reacquire...)
post #9 of 17
Thread Starter 
The test sequence was:
Settings

Dish Pointing - selecting Single Sat

Zip Code - I fed it my zipcode but it is an existing dish

Signal Strength - No signal on Tuner 1

I toggle to Advanced under Signal Strength and it searches for a multiswitch and giving the previously mentioned passing test results. I don't see that its report tells on which tuner/line the multisiwtch was found. I think, mother nature permitting, that I'll drag it outside and setup right at the disk with my old 13" TV on piece of plywood like I did when I originally pointed the dish.
post #10 of 17
Isn't there a setup screen somewhere that you tell it you have a multi switch? I forget where I saw that one. (should have read the above closer )

I have 4 utvs now, and two of them have a bad tuner number 1. I just put my last spare in place of one that just lost a tuner.

I had seen some pixelization and the history showed a couple of tuner changed entries. I wasn't sure until I heard my multi-switch clicking at 5 am (it's an old one with a physical relay that you can hear). I knew then that the turner gave up the ghost. Sure enough, it's signal strength was going from 0 to 90 every 2 seconds.

Anyway, I guess I'm in the market for another spare.

I just re-installed my "hacked" 3.8 onto the spare system (it has a red background and a number 2 on the top of most screens so i can tell which one i'm looking at - plus, the great info screen hack - created by randcfilm - that lists the amount of time in the buffer). Utv is still the best!
post #11 of 17
Thread Starter 
Newbie question. Since I've started cycling my two used DTC100's into the mix, can anyone offer the correct diplexer to use with the 2x4 multiswitch at the dish? My system is partially described in my original UTV post / quest (which is still dialing MSN before & after the HD upgrade, oh well).

It is the 2nd gen 16bit dual RCA box system (1997 vintage) with the round dish (2 coax line outs from a single LNB). These are multiplexed to 4. I'd like to add an over the air ant at the dish rather than at the multiplexer (which is still under drywall).

Edit:
Some additional research indicates that a dual diplexer at the dish should be able to allow me to combine antenna at the dish. I presume that once I combine the signal, I'll have to diplexer the signal apart at all four locations before feeding the box.
post #12 of 17
Quote:
Originally Posted by eea123 View Post

Newbie question. Since I've started cycling my two used DTC100's into the mix, can anyone offer the correct diplexer to use with the 2x4 multiswitch at the dish? My system is partially described in my original UTV post / quest (which is still dialing MSN before & after the HD upgrade, oh well).

It is the 2nd gen 16bit dual RCA box system (1997 vintage) with the round dish (2 coax line outs from a single LNB). These are multiplexed to 4. I'd like to add an over the air ant at the dish rather than at the multiplexer (which is still under drywall).

Edit:
Some additional research indicates that a dual diplexer at the dish should be able to allow me to combine antenna at the dish. I presume that once I combine the signal, I'll have to diplexer the signal apart at all four locations before feeding the box.

I didn't really answer this post earlier because I was trying to wrap my head around all the di/multi plexer speak. I'm either too lazy or old to research this so I'll just give you my own experience using "diplexers" (which combine/split SAT and Antenna feeds from a single line). I also have an older system setup and have a Single "dual" LNB on an Oval/Round Dish. The two feed lines go into my Multiswitch 3x8 which also feeds a 3x4 (3x = Two SAT and an Antenna Feed). So I have TWO UTVs that require Diplexer feeds. So I have the Antenna Feed go into the 3x8 switch and it feeds ALL UTV/Tivo units in the House (6 units) with Combined Sat/Antenna feed.

I DO NOT need a Diplexer at each SAT Tuner. Just the ones where I want an Antenna Feed. (Bedroom and Living Room each have a line that I want to carry Antenna so I split that off.)

That "multi-plexer" (is it just another Multi-Switch?) and the 2x4 Multi-Switch might be problems when comparing my setup to yours. If you could have a 3x4 Multi-Switch on the line instead to take the new Antenna feed in I suspect that might cut down on the extra diplexers feeding the Multi-Switch?
post #13 of 17
Thread Starter 
Thanks for the follow up post. I scored a 4 pack of diplexers on eBay for $7 (incld shipping). Even if the multi-switch / multi-plexer weren't drywalled over, I'd still have a 50'+ run of RG-6 to tread. A generic dual diplexer should only run $10+, so I'm still tempted to try out the installation.

Had I been thinking 12+ years ago, I would have pulled more cable. I prewired the house with RG-59 only to find DirecTV needs RG-6. Another 300ft spool latter and I still didn't string enough!
post #14 of 17
Thankfully the way we setup our "Antenna" feed to the house is/was very "open" to upgrades/additions. Started with 300ohm and RG-59, when I got DTV Christmas '97(?I think?)I ran a single RG-6 Cable to the Living Room (using the 100FT cable in the self install kit). I then also upgraded the antenna lines to RG-6 (from RG-59).Maybe two years later when I added a second receiver I installed the second RG-6 line and added a Multi-Switch... You don't want to look at the rat's nest of wires stuffed in the false ceiling downstairs but it was/is easy to upgrade/run replacement equipment/lines should I need to...
post #15 of 17
it doesnt matter.
post #16 of 17
Thread Starter 
Quote:
Originally Posted by mensrea View Post

it doesnt matter.

What doesn't, the RG-59 vs RG-6? I've been told that and even have used a short run of it for connecting the third box off the multiswitch. I have approximately a 100' foot run from the dish to the main TV. Seemed like the time to upgrade to RG-6 since I had pulled the RG-59 to a different connection / collection point anyway.
post #17 of 17
I'd agree that in some applications rg-59 will do the job.

I too have used it for short runs when RG-6 wasn't available. It might apply to "older" receivers as my Sony B-2 (my first DSS receiver) didn't like it when I used a RG-59 run when I first went to TWO receivers. It gave me an error code and I replaced the run with RG6.

My UTVs don't seem to have an issue with the manufactured RG59 cables or the RG-59 cable I occasionally use for "temp" runs.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Microsoft UltimateTV PVR
AVS › AVS Forum › Gaming & Content Streaming › Microsoft UltimateTV PVR › UTV and Multiswitch