Weak T5 power supply

[dogdayz]

I setup my T5 with four LNB's using two SW21's and a 0/22khz switch. It seems that the receiver can't handle this setup. I get loss of signal. When I remove one LNB then everything else works properly. Looks like too much power drain.
I have tried other scenarios using diseqc switch, SW44 with power inserter, etc. I can't get the system to work with four sats.
How are you guys setting up for multiple LNB's and how is it working for you?

[torpainter]

my friend runs 4 lnbs to a diseq no issues

[Terryl]

Four LNB's run into the right Diseqc switch should work on most receivers.

A trick is to make sure the LNB's are the same type, all should be standard, legacy, universal or DP.

Mixing LNB's can cause headaches and throwing things off the roof, yelling at the birds and hair loss.

Too many LNB's on at the same time adds to the DC current draw from the receiver, if you go over the rated DC current output on the back by the LNB input connector on the receiver you will have problems.

Most standard LNB"s take anywhere from 60 to 120 mA, switches also take some current to run, and the type of coax used can also make a big difference.

So look over your setup, find the DC current spec for your LNB's, look at your switches and see if they power everything at once, or one at a time.

Also an SW44 switch will only run 2 legacy LNB's not 4 standard or DP type.

If nall your LNB's are legacy and you need to run 4 of them you will need an 8 input legacy switch. Each legacy LNB takes 2 inputs/outputs, one for 13 volts the other for 18 volts, if you look at the SW44 it has SAT1 A and B and Sat2 A and B to 4 outputs.

[dogdayz]

Thanks for the info. A few more trips up the ladder...:innocent:

You mention a switch that powers one LNB at a time??? Can you give me a brand / model?

[strunz]

I'm running 5 lnb with diseqc 8x1 switch.... no problem

[dogdayz]

I'm running 5 lnb with diseqc 8x1 switch.... no problem

Wow! I wish I knew why mine is causing trouble. I even have good RG6 and no matter what switch or combination of switches I can only run 3 LNBs.

[moneybags]

Just a shot in the dark how long is your cable run

[BigDaddy0]

I have seen signal S&Q drop to 0% on 5 LNBS a couple of times. I power off/on with remote and everything comes back. It will run for hours before doing it again. The last time was 14 hours ago and I left it on all night. The receiver is warm but not hot. I took some unloaded voltage measurements and got the following:

Power Supply Rating: Output = 12vdc 2.5A, Output Actual = 12.37vdc unloaded.
Receiver Output (measured at LNB IN) = 13.26vdc switching to 17.96vdc unloaded.
This appears to be correct. The only way to determine if the LNB's are dragging the voltage down is to test loaded, but I need to make some sort of F connector I can put meter on to test.

Im using Dish Legacy Twins with two EMP 4x1 DiSEQc and two SW21's.

Anyways, I hope this info can be useful.

[BigDaddy0]

I have seen signal S&Q drop to 0% on 5 LNBS a couple of times. I power off/on with remote and everything comes back. It will run for hours before doing it again. The last time was 14 hours ago and I left it on all night. The receiver is warm but not hot. I took some unloaded voltage measurements and got the following:

Power Supply Rating: Output = 12vdc 2.5A, Output Actual = 12.37vdc unloaded.
Receiver Output (measured at LNB IN) = 13.26vdc switching to 17.96vdc unloaded.
This appears to be correct. The only way to determine if the LNB's are dragging the voltage down is to test loaded, but I need to make some sort of F connector I can put meter on to test.

In using Dish Legacy Twins with two EMP 4x1 DiSEQc and two SW21's.

Anyways, I hope this info can be useful.


Just found this post, seems that switching to 18v helps.

http://www.satfix.net/showthread.php?140874-Random-occurrences-of-quot-bad-or-no-signal-quot

[dishuser]

Just found this post, seems that switching to 18v helps.

http://www.satfix.net/showthread.php?140874-Random-occurrences-of-quot-bad-or-no-signal-quot

that won't work for legacy lnbs

[ftanewbie]

I setup my T5 with four LNB's using two SW21's and a 0/22khz switch. It seems that the receiver can't handle this setup. I get loss of signal. When I remove one LNB then everything else works properly. Looks like too much power drain.
I have tried other scenarios using diseqc switch, SW44 with power inserter, etc. I can't get the system to work with four sats.
How are you guys setting up for multiple LNB's and how is it working for you?


sounds like u need a good heavy duty switch....dump the diseqc their cheap garbage, it mite me draining all power out of the box.

[Terryl]

BigDaddyO,

There is no way to realy test the LNB's in the active state, (receiving the signals from the satellite) not without a very specialty modified receiver or LNB test bed.

I use both, the receiver is an old CoolSat 5000, it has a special DC current monitoring circuit with a boosted power supply that I built into it, this allows me to monitor the true DC current load to the LNB(s).

With out this type of circuit you will affect the signals to the receiver and you will not get a true reading.

And your DC power supply rating spec is for the power to run the receiver, not to the LNB's, that is labled at the LNB connection on the back of the receiver.

95% of the FTA receivers out there will only run a 500 mA load, a bit more if there is an overload sensing circuit in the power supply.

Most 4x1 and 8x1 switches will only power the LNB that is addressed by the receiver, if the switch is a 4x2 4x4 or bigger then all LNB's will be active, if it is an un-powered switch then the receiver will have to run the whole load.

There are some 2x1 and 4x1 switches that try and power everything attached, there is a test to do to see if you have this type of switch.

[Terryl]

I setup my T5 with four LNB's using two SW21's and a 0/22khz switch. It seems that the receiver can't handle this setup. I get loss of signal. When I remove one LNB then everything else works properly. Looks like too much power drain.
I have tried other scenarios using diseqc switch, SW44 with power inserter, etc. I can't get the system to work with four sats.
How are you guys setting up for multiple LNB's and how is it working for you?


We need to know what type of LNB's your trying to switch, as this setup will not work too good on some.

[dogdayz]

All my LNB's are Legacy duals. My coax is RG6 about 40 feet long.

[Terryl]

If your trying to run more then one receiver then you will need a legacy switch setup for 4 LNB's, it will have 8 inputs, two for each LNB, it will also require a DC power inserter.

Sat1 "A" and "B"
Sat2 "A" and "B"
Sat3 "A" and "B"
Sat4 "A" and "B"

Or if only a single receiver is needed then try this one.


http://www.emp-centauri.cz/index.php?lang=en&page=prodview&id_kateg=1&id_pkateg=20&id=215


Also what type of RG-6?

There are several, some will work fine, others will not, look at the coax, it should be marked, good to 2.5 GHz or swept to 3 GHz, if it says CATV or 900 MHz then its the wrong type.

[dogdayz]

Terryl,

I am using RG6 rated at 3 Ghz so that shouldn't be an issue.

I like the switch you linked - now if I can find someone who sells it.

[panmanzaa]

dog, i have 4 lnb with 4 sats,i was running the diasq swt that came with the t5 dreamlink, had the same trouble as u did, so i changed my diasq,with the same ones that i used in years gone by ,hence the emp is no good for 4 sats..................

[Anubis]

If you can get a BAFF switch. It should work fine. If not then there is a issue with connections somewhere.
EMP, Chieta and Baff are the most common available and work with the unit.

[whositwhatnow]

@Teryl

This is the switch I have, so in order for me to run mix lnbs I'm confused on how to connect it then, I've been connecting wrong the whole time
http://www.google.com/url?q=http://emp-centauri.cz/pdf/Profi_line_168.pdf&sa=U&ei=1bbQUqjRLorhsAS454D4Cw&ved=0CAsQFjAA&usg=AFQjCNH5ITDfTkOpBAUa9pcA9hSD18z-_A"]http://www.google.com/url?q=http://emp-centauri.cz/pdf/Profi_line_168.pdf&sa=U&ei=1bbQUqjRLorhsAS454D4Cw&ved=0CAsQFjAA&usg=AFQjCNH5ITDfTkOpBAUa9pcA9hSD18z-_A

[torpainter]

you need to have all single lnbs for this switch

[BigDaddy0]

Well 11 more days of testing the NO SIGNAL issue I have come to a conclusion that my DL100 HD board is overheating. It was only occurring while watching HD channels for long periods. I opened the cover, and replaced the silicon cube with a real aluminum heat sink I got from a scraped computer. Ran with cover off for a couple of days and had no Signal issue. Put the cover back on and within 1/2 hour the NO SIGNAL issue came up and had to power off/on with the remote to get it back, removed the cover and had no issues for the rest of the night. Yesterday I added a second heat sink to the top of the first one on the DL100 board. Also these tests were done with Auto TP Update switched off. I did not have a temperature probe to check temps.

To summarize here is a list of comments collected on this problem from users;

1) Turn off Auto TP Update - one user reported it fixed there problem, it appeared to lesson the frequency of faults in my case.
2) DL T5 does not like EMP Diseqc switchs - I think this still needs to be proven.
3) DL T5 does not have enough power to run over 3 LNB's - This depends on the LBN type, however this could be the reason for overheating.
4) Put a laptop cooler under the receiver - although I disagree that we pay good money for a receiver only to have to put external cooling on it, its a good idea and I'm going to get one. Hopefully there not noisy.
5) RG6 cable run too long or wrong type of RG6 cable.
6) Switch LNB power to 18V - won't work with legacy LNB's. Correct me if I wrong, but it won't work with DPP LNB's either and needs to be able to switch between 13 and 18v to get Vert and Horz TP's.

Hope this is useful.

[torpainter]

turn auto tp back on,has nothing to do with heat

[BigDaddy0]

turn auto tp back on,has nothing to do with heat

Agreed, I'll try running with it on.

[strunz]

Tries to do something else .... if you are using hdmi cable try.... the component cable

[rayr]

Get an 8X1 switch from China for $14 including shipping. My neighbor has 6 Lnb's working without any problems with about a 60ft rgb6 run.

[Longster]

Tries to do something else .... if you are using hdmi cable try.... the component cable

hdmi cable and component got nothing to do with signal, those only give you picture and sound. I just finish installed 82, 110,119 and 129 for a friend, they all hook up to a cheap 4x1 switch that came with the receiver and the signal are all above 80% some TP are showing 96%. My suggest is double check the lnb setting and port switch, make sure is on disc 1.0 not 1.2

[horney toad]

I setup my T5 with four LNB's using two SW21's and a 0/22khz switch. It seems that the receiver can't handle this setup. I get loss of signal. When I remove one LNB then everything else works properly. Looks like too much power drain.
I have tried other scenarios using diseqc switch, SW44 with power inserter, etc. I can't get the system to work with four sats.
How are you guys setting up for multiple LNB's and how is it working for you? I run 4 lnb's with a 4X1 switch with no problems....cheers....ht

[strunz]

hdmi cable and component got nothing to do with signal, those only give you picture and sound. I just finish installed 82, 110,119 and 129 for a friend, they all hook up to a cheap 4x1 switch that came with the receiver and the signal are all above 80% some TP are showing 96%. My suggest is double check the lnb setting and port switch, make sure is on disc 1.0 not 1.2

You're guessing...... or you're telling a joke!!

[dishuser]

You're guessing...... or you're telling a joke!!

you an idiot or just stupid?

[strunz]

you an idiot or just stupid?

Dear scimunito I just answered that gentleman who to saying the hdmi has nothing to do with the signal ...And I can assure you anytime..That is not true Now before you open that big mouth try using it to do something else

[surfinisfun]

you an idiot or just stupid?

I'm really torn with those two options considering the reply below....i guess its safe to say both apply.lol


Dear scimunito I just answered that gentleman who to saying the hdmi has nothing to do with the signal ...And I can assure you anytime..That is not true Now before you open that big mouth try using it to do something else

[JCO]

We are getting way of topic..
Lets play nice in the sandbox..

[dishuser]

Dear scimunito I just answered that gentleman who to saying the hdmi has nothing to do with the signal ...And I can assure you anytime..That is not true Now before you open that big mouth try using it to do something else

so you're stupid

[surfinisfun]

We are getting way of topic..
Lets play nice in the sandbox..

Could be but...


so you're stupid

Is it possible he misspelled his user name?......I think he meant stund not strunz.lol

O.k JCO i'm done but.....Wow some people.

[strunz]

Could be but...



Is it possible he misspelled his user name?......I think he meant stund not strunz.lol

O.k JCO i'm done but.....Wow some people.

kneel ..... the Messiah arrived... about the misspelled name...you smell like one of those!!

[strunz]

so you're stupid

I’ve learned that artificial intelligence is no match for natural stupidity

[surfinisfun]

I’ve learned that artificial intelligence is no match for natural stupidity

So whats your problem, naturally stupid or artificially?

HDMI cable affecting a sat signal?, really pal that equals both above, idiot.

[strunz]

hdmi cable and component got nothing to do with signal, those only give you picture and sound. I just finish installed 82, 110,119 and 129 for a friend, they all hook up to a cheap 4x1 switch that came with the receiver and the signal are all above 80% some TP are showing 96%. My suggest is double check the lnb setting and port switch, make sure is on disc 1.0 not 1.2

the reason I mentioned the hdmi cable and the component because when I use the hdmi, my receiver reboot after five minutes and with a few signal instead with the other cable and everything is perfect with signals at 85 to 96. I hope I have clarified my comment

[strunz]

So whats your problem, naturally stupid or artificially?

HDMI cable affecting a sat signal?, really pal that equals both above, idiot.

If I agreed with you, we'd both be stupid.