Vu Duo tuner Problem!!

[davecabezo]

Hi,
Did a rescan of 28o here in Tenerife. During the rescan Setanta Ireland was on the list of channels found during the Scan but when I looked through the channels after the scan it's not listed. Any Ideas Please

Regards,

Dave

[Jimdefruit]

A number of channels have switched satellites and now have a much smaller footprint. Some require you to input the PIDs manually. (probably using DreamboxEdit)

[davecabezo]

Sorry to be so dumb but where do I get the pids and will the missing channels show up in Dreambox edit

Dave

[echelon]

some of those satellite changes mentioned here too

https://www.satpimps.co.uk/showthread.php?162175-Sky-UK-28-2-East-Latest-Changes/page7

and here

https://www.satpimps.co.uk/showthread.php?165715-BBC%92s-Services-on-Astra-to-migrate-to-new-satellite

https://www.satpimps.co.uk/showthread.php?165663-Astra-2E-shuts-out-Spanish

new transponder details for pids etc are on fly sat , king of sat and lyng sat websites

some are linked in the links I posted too

alternatively, you may find a new channel list like catseyes has the up to date pids and transponders in it

dreamboxedit is just a channel and bouquet editor for your pc, it doesnt test channels

[davecabezo]

Thanks Echelon

[davecabezo]

Hi More problems,

Seems like the duo has developed a fault on the circuit which sends a voltage to my 4way diseq switch. It will no longer change satellites, I've changed the diseq switch for a brand new one but still nothing it appears to be stuck on 1 satellite.

Is there a fuse which could have gone in the Vu Duo or is it purely electronic switching?

Help if possible please,

Dave

[echelon]

if there is a fuse its probably not a glass one like you may think of as a fuse and as its solid state not easily recognised either , even if there was one

as for your box, it always sends a voltage to the switch or motor or lnb , which is used for power and to switch the lnb into H or V (they all do) , they use 13 volts and 18 volts

the switch is controlled by diseqc commands , not voltage , so simple diseqc like diseqc v1.0 , or 1.2 for a motor , so electronic switching is used, not voltage switching as that is for H or V only , with a 22 khz tone applied for High and no tone for Low (an lnb has 4 states of switching)

[davecabezo]

Hi Echelon,

Is the box fixable?
I'm back in the UK for a week, Tyneside or Leeds area mid March I could bring it with me then. Hope this isn't a common fault as the box is less than 2 years old

Regards,

Dave

[echelon]

Hi Echelon,

Is the box fixable?
I'm back in the UK for a week, Tyneside or Leeds area mid March I could bring it with me then. Hope this isn't a common fault as the box is less than 2 years old

Regards,

Dave

I never said the box was faulty , you did , and implied a fault that does not seem correct to me, so my thoughts were :-

incorrect diagnosis of the fault by the owner

until the fault (if any fault exists) is diagnosed correctly it is unknown if it can be fixed

for all I know its your diseqc settings at fault , or a corrupt image on the duo , who knows ? I certainly dont and there is no way anybody can diagnose a fault from 2000 miles away ;)

you have not mentioned the image and version number being used (listed in your menu - info)

you have not mentioned the type of diseqc settings for tuner A or tuner B (listed in your setup)

you have not mentioned how you have decided it was a voltage issue
(not tested it direct to an lnb in all 4 states of HI-H , LO-H , HI-V , LO-V)

diagnose it properly and you are halfway to correcting it

[davecabezo]

OK, Thanks Echelon,

Will first check out all the connections on the roof and then come back to you as I don't know how to test it with an lnb.

Let you know later today

Regards,

Dave

[echelon]

use a 50p barrel connector to connect an lnb from the dish through to the receiver (not using the switch)
this is how you would connect a single dish and lnb to a receiver, so actually bypassing the switch

now check transponders with H and V polarities , also checking the one that are High and Low voltage as well, so that you check all of the 4 states that are used , this will check that high and low (tone and no tone) is working and as you stated it was a voltage issue, this will also check if the 13v and 18v voltages are working or not too (by checking the 13v and 18v which are the Horizontal and Vertical polarities)

basically, if all the channels and transponders work, your diagnosis was incorrect


you also still have not answered the 3 questions I asked either (which I find strange seeing as I was specific)

image name and version number (from system info) ?

Tuner A setting in the setup menu ?

Tuner B setting in the setup menu ?


for example, how do we know its not an image issue ?

how do we know that you havent lost the diseqc settings on your box tuner for operating the switch ?
ie:- that its set correctly on tuner A or tuner B depending which tuner the common wire from the switch goes to

dont take this the wrong way as I am going to be very blunt here :-

having written to you on many occasions and seeing your posts on here and elsewhere
I dont trust your information or fault finding abilities at all , this thread is proving my theory too

I have no doubt you were a brilliant brain surgeon or pilot, but when it comes to satellite - well !!!!

you catch my drift ;)

now had you stated you have put the latest blah blah version blah image on the box
you had setup the tuner correctly using simple diseqc and chosen the 4 sats its using
the other tuner is set to blah blah
you had installed the latest catseye list
you had bypassed the switch completely with a simple barrel connector
you had tested all 4 states for an lnb using various transponders and channels on the sat position blah blah

then , and only then would I feel you had a grasp of how it works and what needed to be done to check it

in order to test for voltage issues you would have to check it on a V polarity channel and a H polarity channel using a voltmeter (or multimeter) and I very much doubt that you did this as I see no evidence of you even owning a voltmeter which in any case only powers the switch and lnb and doesnt do the switching (diseqc commands do the switching)

how you arrived at a faulty box with a voltage issue that doesnt diseqc switch correctly is beyond me !

it is MY opinion that you lost UK channels due to the astra 2E changeover and decided to scan for channels and possibly lost your diseqc switch setting in your image

[davecabezo]

Echelon,

In post 6, I said it seems like the Vu has developed a fault. Reason I replaced the existing switch with a brand new one which excluded the Diseqc switch from being the culprit. Therefore it seemed likely that it was the Vu which wasn't producing the voltage to operate the switch. I accept that it could have been software related but I was asking if there was a fuse in the box. If there was then that would have been my first item to check.
You replied that basically you didn't know.

My next post #8 Was a knee jerk but all I was wanting to know was have you seen any posts that were of a similar vein so that I could either order a new STB or try to arrange to get the box checked.

In post #9 You started to get a bit heated. I hadn't posted the information you listed because at the time a) you hadn't asked for the info and b) I had checked the diseqc settings and they were OK

In post #10 I said I was going to check the connections, which I did on Sat & Sun afternoons. I used a barrel connector and altered the tuner settings to suit and used a small sat finder to check signals etc. All 4 Satellite dishes worked OK but when I changed from tuner A to B to do the same a fault showed up on 1 of the dishes. I eventually found the fault (Corrosion) which must have been shorting out the downlead which must have been the culprit which caused the box to stop producing the signal to the Diseqc switches. I couldn't fathom though why one tuner could stop the other tuner from functioning correctly. In any case I checked/replaced all connections on the Twin LNB's and both Diseqc switches. Problem Solved!!

I didn't pick up your post #11 until yesterday evening and wasn't happy at all with your comments. Your getting very personal again just as you have in the past. I wont enter into a slanging match with you apart from to say that if you've a problem with me then please don't reply to any future posts from me.
Your last 2 statements in bold are very opinionated and WRONG. It was quite a natural assumption (to me) based on the fact that I had checked and replaced the Diseqc switch of Tuner A and also did a visual check of the general installation on the roof. I admit that I was not correct in my first diagnosis but correct in the fact that the box was not producing a signal to the diseqc switch albeit because of a fault on the second diseqc switch!
Your second statement was wholly wrong. I scanned for EXTRA Sky channels on 28o which we can now receive in the canaries, and the Diseqc switch settings were correct because I HAD checked them.
I did thank you in the post above and I have thanked you in the past because even though you can be very sarcastic in your replies you have helped me in the past.

Regards,

Dave

[echelon]

what you fail to understand is this isnt facebook, its a forum where technical aspects are discussed and YOU have to provide the correct info for others to make an opinion about, which you consistently fail to do, hence my replies

I am a trained electronics comms engineer where my reports were factual and will always query incorrect information and as such always have little or no emotion and will always question the ability of the person or info placed in front of me, to the point of being very blunt with anyone that hasnt grasped the nettle , not just yourself but anyone, and when I feel my words are falling on deaf ears then yes I will be more explicit and embolden text until the person receiving the info actually reads it and acts upon it, regardless of their state of mind

if you want help, then post all relevant details so others can help you, I have asked you to do this on many occasions, but you never do, we should not have to ask for the info, you should provide any and all info as a matter of course without having to be asked , your post #10 did not even answer my post #9

in this case I had no doubt that your box wasnt faulty, had no doubt that changing the switch would not rectify it , had no doubt that it wasnt a voltage issue , had no doubt you had not tested it in all 4 lnb states to a single lnb , basically had no doubt you hadnt carried out enough isolation tests to ascertain the fault, but you were quick to assume far too much and then ask if others agreed with your assumptions, including me, well my answer was an emphatic NO , NO I didnt agree with any of your assumptions and still dont

I even said so in which case I wont be giving any apology for being right



incorrect diagnosis of the fault by the owner


A simple check of the lnb outputs with a voltmeter would have told you if both voltages were present and therefore if any internal fuse had "gone" or not. nobody can answer your fuse question without having access to a circuit diagram and I dont think many people will have one of those apart from authorised specialists and the manufacturer themselves

your further fault finding has now found the actual fault causing your issues and you have resolved it and it clearly had nothing to do with any of your assumptions , proving me correct and also in doing what I asked you did actually find the trouble, which was the whole point of the exercise

I have no wish to be a friend of yours or anyone else on here (that is not my intention or role) , if I see a post that is clearly poor or incorrect the person posting it will learn how blunt and matter of fact I can be, no matter if it is you or anyone else. that will hold true for any future posts too, so dont tell me if I can post or not !

Once a dialogue is established and that poster listens and learns and does what is required and reports back with the info asked for then I will endeavour to help them, but over the years I have never been convinced by your "fault reports" as they tend to bear little resemblance to any facts, all I ever want is the facts, nothing else , then I can act on them and hopefully get the fault fixed , so I will demand and insist on getting those facts , not fiction

if you read any engineering report it is full of facts and devoid of emotion, and if its about pilot error in an air crash investigation then that is what it says, regardless of who it upsets , that is how I operate and did so as an engineer, and shall continue to do so as it is how I was trained , it gets results and I find as I get older I dismiss the smoke and mirrors a lot more and try to get to the heart of the matter

the actual cause of the problem I do agree with though, now that you have actually found it , namely



I eventually found the fault (Corrosion) which must have been shorting out the downlead which must have been the culprit which caused the box to stop producing the signal to the Diseqc switches


so fuse gone inside the box ? -NO

so faulty voltage output from the box ? - NO

so faulty duo ? - NO

so faulty diseqc switch ? - NO

bearing in mind that you started this thread about tuning and scanning

rescan required due to the fault ? - NO

rescanning due to the recent changes to change transponders to astra 2E from 1N etc - probably (I know I did)

the good point in all this is that eventually you did a proper diagnosis with some tools and a meter and didnt assume anything and this was what led to you finding the actual fault , having a voltmeter would also have helped you by being able to test the VU as well (as would testing it on a different dish or different setup too) , then you completed the task by sorting out your connections etc which cleared the fault , none of which can be done by myself or anyone else thousands of miles away , it needed an onsite engineer like I used to despatch years ago for a hands on approach