Motor blown?

erukus

hi i came home after a summer away and my motor wont work.i had a friend do some work for me during the summer and i think he put the wrong leads in the motor i.e. he put the reciever/power coax in the lnb socket on the motor and the lnb coax int the reciever/power socket.Would this have blown the motor as it will not move now.It is a moteck diseq motor it has a reset button and a manual move button on it.the manual move wont turn it either?

erukus

ANy body got any ideas if its blown or is there some way of resetting it?

Tivù

Sorry - meant to reply ages ago but got distracted by a Lamb Stew .........


Although it does seem likely that putting power on the output, not the input might cause failure, perhaps you could tell us if any of the indicator lights under the motor body are lit when it is connected properly - and if so, what colour?


There is a reset hole, but if you have no lights lit, I suspect that may be a redundant exercise .........

satelliteman

Do you have a green light as mentioned showing on the Motor?

Edit: not quick enough...

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Vipersan

..Hi m8
Just to add to whats been said already..
I strongly doubt that applying the drive cable to the motors lnb out could cause damage as both are effectively at the same voltage when operating.
Unless it was left powered in this state for some time..that is
I think it more likely that your friend might have disturbed or pulled the cable out of the F connector ...and re-made the connection ..but did it badly ..causing a break or even a short at the connector..
If no green light ...I'd be re-doing the F connectors ...and also checking the cable for breaks ..particularly if it was 'building work' he was doing ..anywhere near the cable.
rgds
VS

T_G

Yes, I agree it is more likely to be a cable.

As a first step I would disconnect the LNB, and try moving the dish without the LNB connected. I have had two separate incidents where a faulty LNB causes the SG motor to behave strangely.

If you have a possibility to go on the roof with the receiver and a TV and some short cables you might want to do that - obviously not always possible.

T_G I only believe stuff that comes straight from Mr. Horses mouth!

Channel Hopper

Check there is a voltage out of the receiver co-ax first.

There is a very fine line between "hobby" and "mental illness"

erukus

Yes channel hopper as soon as it stops raining that is my first port of call!

erukus

ok i have checked the voltage on the coax leaving the reciever its about 18.5volts then there is a joiner on the reciever side of that its 18.5 volts by the time it gets to the dish its 8.5volts meaning a drop in 10 volts i have tried clipping off two inches off the end but still 8.5volts does this mean that the cable is damage somewhere alon the way?the distance from the joint to the dish is about 8 metres surely there shouldnt be that much of a drop in voltage due to that distance?

Tivù

Clear cable degradation - Not that it matters much as you'd be advised to replace the entire length, but you might look for cuts and abrasions, perforation and also signs of water ingress, particularly at the motor end of it.

Some people get away with chopping a few inches off, but ...........

When you re-cable it, try to avoid the join you refer to: Always best to have a single uninterrupted run.

Vipersan

..I totally agree with Gordon on this one..
Even if you measure a full voltage at the join point ...indicating the break is in the last 8 mtrs ..
..It would be best to replace the entire cable run ..from motor to box avoiding any joins...
Particularly if the join is outside the property.
Joins like this can draw water into the cable by capillary action over a period of time.
rgds

erukus

OK Thanks guys only problem is that the cable is up very high and it was a daunting task to go up on a wooden ladder in the first place to put it up there but i guess i dont have too many options unless it is near to either end that the problem is

Channel Hopper

Is it air cored cable or solid stuff ?

There is a very fine line between "hobby" and "mental illness"

erukus

Triax coax cable im not sure which one it is!

Channel Hopper

You can tell by looking down the centre of the f-plug, if you are not brave enough to take it off.


On (most ) air cored cables, you will see a centre core of copper, with a segmented section of clear plastic (five or six gaps of air between the inserts)separating it from the outer braid.

There is a very fine line between "hobby" and "mental illness"

Robbo

I'd join it and put plenty of self amalgamating tape round it. One little join won't hurt.. Especially as the weathers starting to get worse, you don't want to be messing about up on ladders.

Though, if the cable is full of water due to it being air-cored, then you will have no choice, but to change the lot.

erukus

okay managed to mend cable and get the power back to the motor-no signal though only possibility is that the lnb is blown or that the lnb socket in motor is shagged after the power went in there-have tried replacing the cable from motor to lnb no good no signal

Vipersan

Very sad if you motor does have a damaged lnb input ..
Its easy enough to check the lnb without replacing it first ..
Just move the motor to a known sat location ...then disconnect both cables to the motor and join them together briefly with a 'barrel' in line joint piece like the one at your cable join ..
Thus allowing the signal to pass directly from lnb to receiver ..
best of luck m8 ..I hope it is just the lnb itself
rgds
VS

Vipersan

...another thought just occurred to me ..
When you found the problem with your damaged cable ...was it a break or a short ?
The reason I ask is that ..if it was a short or partial short ...and was present on your receiver for any length of time whilst the stb was powered up..
..it could just possibly have damaged your tuner..
Do you have a sky mini dish on your property ?
If so you could eliminate receiver damage by hooking up the box on the sky dish and checking you have a signal on 28 deg..
rgds
VS

erukus

yes i think the tuner is fine because I am using a sky mini dish at the moment-also nicely spotted about how to check the lnb hadn't thought about that one will give it a go soon thanks

erukus

Ok

so for anyone interested here is what was wrong a) my friend had put the cables in backwards the lnb in the power input and vice versa b) the go to x function had the wrong longitude direction i.e. it was east instead of west

also does anyone have a prob with the coax going into the motor being moved and twisted as the motor moves? It has the potential to and has twisted the cable to the point where I have lost power and functionality of my dish!

Vipersan

Happy to know you got it sorted m8...
As to cables being dislodged as the motor turns ..
It may be the short cable between LNB and motor might be a little too short making it tight and thus pulling loose when the motor visits the E/W extremes ..
Also look to rerouting it if it fouls on any metalwork as the dish turns..
The large threaded u bolts which hold the dish to the motor stubb ..should be sawn off if too long ...once the assembly is fitted and functioning correctly ...as these are known to cause problems with snagging cables as the motor rotates the dish..
rgds
VS

Tivù

Yes - this is something I often warn folk of: What I do is shift the fulcrum of the twist away from the F connection leaving the Motor for the LNB by restraining the cable a few inches from the connection: A cable tie to the pole does the trick - plus careful routing to avoid other pitfalls, as Vipersan suggests.