Late signal/lost of signal (Astra 19.2)

L

Lajiness

Vu+ Newbie
Hey everyone
Just want to chare my experiance with you guys...and hopefully i can get some help/tip on the issue.

I have a Vu+ Solo2, one satellite dish with 4 diffrent Lnb's pointing at Astra 19.2 (Lnb1), Hotbird 13 (Lnb2), Astra/Sirius 4.8 (Lnb3) and Astra 28.2 (lnb 4). Cables running from LNBs (twin Lnbs - as i have another reciever downstairs), 4/1 Diseqc and a single cable into LNB2 port (Tuner B) on the backside of Vu+ Box. The second cable runs downstairs to second reciever. Wiring to the second reciever (not vu+) is exactly the same (from Lnbs through 4/1 diseqc and one cable into the reciever.). I run the lates BH image on th Vu+. Tuner config on VU+ is tuner B advanced (using diseqc 1.0 of cours and AA, AB, BA, BB for eachi of the LNB', Commited, toneburst)...basically the same as the simple config With 4 lnb' A/B/C/D). This setup has been working fine since january 2014

Now the problem:
For the past year or sometimes get total signal loss (0% like the satelite isent ther at all) on Astra 19.2 when i start up my Vu+ alltough i know the harware (antenna/LNB) is correctly set/aimed. How do i now it? Because of 1) the second reciever i have downstairs show Atsra 19.2 with full signal strength (using same LNB!).---and 2) when the signal of Astra 19.2 suddently returns back on (everything from a couple of minutes to 1 hour)VU+ i shows about 90% strength. I also have the same problem (only on Vu+) when i swich to another channel on a diffrent satellitt...lets say hotbird or Astra 4.8..and watch for a while, and then go back to an Astra 19.2 channel the signal gets lost again. It seems to effect only Astra 19.2 because alle the others are working fine from start when i boot on the Vu+ and when i switch from sat to sat. Dowstairs reciever) i have no problems at all...everything is working fine...4 satellites...strong signals on all 4)

Has someone an idea of what can cause this or where do i start the troubleshooting?
Thanks!
 
M

Mick12334

Moderator
You start by eliminating the obvious causes, faulty LNB, faulty cable, faulty Diseqc switch.
Take a cable, you know is working, or make a new one, and run it directly from the LNB, to your receiver, bypassing your Diseqc switch.
Chenge the Tuner configuration, to simple, single, and check if 19.2E works normally, for some time.
If it does then you have started to isolate the problem.
You could also switch the Diseqc switches round.
Isolate the Diseqc switches, by removing the second one, from the set up, and see if everything works normally, on your VU+.
There are many other things, you can check, but you might as well eliminate the obvious options first.
 
L

Lajiness

Vu+ Newbie
Thanks for the reply!
I intend to do exactly that....espacially that i have tried all the tuner setup combinations without any luck.
Hopefully it's only a bad connection/cable somewhere, either on the diseqc or on the Lnb output.
Thanks again
 
L

Lajiness

Vu+ Newbie
The weird thing about the problem is it only, as i wrote earlier, accurse only when i start up the Vu+ or when i change to diffrent satelite for a while and then back to 19.2.
It does not happen when i have full signal strength and actually watching channels on Astra the whole time/intire evening...no prblem at all.
If it indeed is a bad connection somewhere (diseqc , LNB or cable) one would then the signal loss to happen while actually watching channels on Astra 19.2...but this is not the case...og figure.
 
M

Mick12334

Moderator
You can have intermittent problems, with any electronic device, it could even be due to a conflict, between receiver, Diseqc switch, LNB, or even a problem from your second receiver, as both receivers will send power to switch beetween polarities.
The only way to track it down is by a process of elimination.
 
AlexWilMac

AlexWilMac

Moderator
I don't know if you have easy access to your dish. If so, I'd do this try: I would just swap the two cables attached to the 19,2 LNB. If the problem comes from the LNB, it'll be now the other receiver to have troubles.
Instead, if the problem is a faulty DiseqC switch, nothing will change.
Afterwards, as a confirm, you can swap the two DiseqC switches.

And finally (but this is not intended as a way to solve your issue, but it's a general consideration): is it really needed the advanced configuration? Wouldn't be easier to chose the simple one with four ports A/B/C/D and the assign each of them to the appropriate satellite?
 
L

Lajiness

Vu+ Newbie
Thanks for the tip Alexwilmac!...I have (almost) direct access to the antenna (need a ladder) and i will definatly try your suggestion later on this afternoon....i'll get back with a reply of the results.
I kind of agree reguarding the simple tuner setup (simple with A/B/C/D)...its the configuration i used all the time...just switched to Advanced setup a couple of days ago just to see if that helped solving the issue or not (it did not)...
 
AlexWilMac

AlexWilMac

Moderator
Well, you can obviously revert the two tips, if it's easier: before, swapping the switches, after the cables attached to the LNB... ;)
 
L

Lajiness

Vu+ Newbie
Status: came from work and before turning anything on...i swapped the cables (19.2 Lnb) between the two diseqcs just to check if it's the Diseqc OR one of the LNB outputs (right?)...went upstairs and turned the Vu+ first and got signal on Astra 19.2 right away (so far so good!)...went downstairs and turned on the other reciever (expecting no/"late" signal) and was surprised as everything worked just fine...went upstairs again (Vu+) and switched to other satellite and watched for a while...then back on 19.2...again strong signal and channels right away...So..conclusion so far: everything seems ok now, but still to early to celebrate ....i ll try again tomorrow morning and see what happens. (by the way...went back to use Simple mode setup on the reciever)
Thank u so much for the tips and help so far!
 
L

Lajiness

Vu+ Newbie
Quick follow up....everything worked fine this morning...VU+ and reciever downstairs....so far it seems like a false contact.
 
AlexWilMac

AlexWilMac

Moderator
Good. Just a quick remind: when you connect and disconnect cables, always power your receiver off (not standby, real shutdown). Maybe 99 times nothing happens but, sooner or later, you'll burn something.
 
K

kosmani

Vu+ Newbie
Hello there,

Everything was working fine until today i tried to watch a channel on 28 the satellite suddenly disappeared. Then i tried to fix it at tuner configuration but there i can see only 13, 16 and 19 no other satellites whatsoever. Even when i try to search channels manually, I can select only 13, 16 and 19.

Helppppppppppppppp I am going crazy
 
M

Mick12334

Moderator
You should start your own thread, to get more help.
Do you have 4 LNB's, pointing at the four satellites, 28.2E, 19.2E, 16E, and 13E?
First check that your dish hasn't moved.
Next check that your cable connections haven't come loose.
Once you've checked the obvious try changing one of the LNB's, e.g. move 13E to the 28.2E setup, and check the 28.2E LNB on the 13E setup, if 28.2E then works, and 13E doesn't you know it's the LNB.
Please post more information, regarding your satellite setup, or we can only guess what your problem is.
 
K

kosmani

Vu+ Newbie
Thanks for the prompt response. Yes, I do have four LNB's, and I was just wondering if this is a software or hardware problem, since my LNB's are a bit hard to reach. I believe that the dish did not move since 13E, 16E and 19.2E are working perfectly (i have a fixed dish with four LNB's) but I might check if the cable or something moved.
 
M

Mick12334

Moderator
Also check the connections at your Diseqc switch,
As your LNB's are hard to reach you have a problem, to fully check the LNB, you need access.
The simplest method is to run the cable directly, from the suspect LNB, to your receiver, then check the cabling on a working LNB, like 13E, finally switch a working LNB to 28.2E, all simple checks, providing access is easy.
The most likely faults are failed LNB, faulty/damaged cabling, or connections, and the LNB has moved, as your dish is fixed, and the other LNB's are working, we can rule out that the dish has moved.
 
K

kosmani

Vu+ Newbie
Greetings

I have found the problem but not the solution. The problem is not Diseqc, the problem is software. I have re-installed image and 28.2E was working fine, as soon as I install my channel list it disables 28.2E and all other satellites besides 13, 16 and 19.
 
M

Mick12334

Moderator
How have you set up your tuners?
It should be Simple, Diseqc A, B, C, D and set up the corresponding satellites.
Where did you get your channel list from?
Did you create it yourself, or are you using someone else's?
 
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