Question about JVC THS55 System

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Door Opening Problem

We have a problem with opening the door. The door cannot be opened by remote controler and not even manually. On the control panel is displayed LOCKED when trying to open the door. Please advice us if the device is broken or if its just blocked somehow and how to unlock it.
Thank You Catrine

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  • rolats82 Apr 15, 2008

    Have a problem with our JVC XV-ThS55 DVD Player.

    After done watching the DVD Movie, everytime we try to open the DVD tray, "Locked" appears on the Panel. We tried to play the movie and remove it after we stop it but same problem.

    Kindly let us know what we can do to fix it ASAP.

    Thank you and waiting ur reply.




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  • 80 Answers

Dear friends,
I have solve the problem.power off the player and press and hold STOP+OPEN,CLOSE button.and than power on the player than display shows unlocked.the problem solved.and enjoy

Posted on Apr 30, 2008


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1 Answer

Why door wont open

There can be many reasons but lets try the most common one first.
No elect power supply to the motor - check circuit breaker supplying elect power to the control box and or DC transformer. Check DC power supply for transformer to control box.
If that is ok adjust the up load turn switch - normally there are two adjusters regulating the open and close forces applied by the motor. If set to sensitive the door will open or close partially or even not at all. Quick check is open the door by releasing the manual lock and lifting the door by hand. Lock the manual lock again, press the door close switch/remote and see if it will close. If it closes the up switch is set to sensitive. Adjust by turning not more than a quarter turn before trying opening the door. If not sure to what side it must be turned turn it fully to the left try - if not working fully to the right and try again. It is however necessary to reduce the setting to a point just enough to open the door with any manual/hand assistance but where it should stop moving if light resistance is encountered such as hand pressure against direction of travel.
Check the remote contol batteries.
Check for some obstacle in the way of the door.
Check if the door is not locked.
Lastly check the micro switch settings on the door motor.
If the problem is not solved manufacturer assistance support.

Jul 19, 2014 | Building Materials

1 Answer

My garage door will only open half way. It appears to be getting stuck when it is opening.

If you haven't gotten your issue fixed yet... I had the same problem (stopped opening half way when using the remote, went down fine, could lift/close manually fine as well) and this happened on our first cold weather day of the year which was very telling. Anyhow, there are two gauges/dials on your garage door opener unit itself (above, where the light is) which controls how much torque/strength your door uses to open or shut through resistance. I turned mine up some and it now works fine; what likely happened was that the metal tracks or the wood frame condensed in the cold and was providing just enough resistance to stop it when opening - as they have a security device built in to stop if they meet any resistance. Hopefully this helps!

Oct 27, 2012 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Dominator garage door opening system - no remote and remains open

Try this first before calling a repair company. When the door is finished moving and it is open release the handle that disengages the door from the actuator and then close the door by hand. then re engage the handle and operate the door. If everything works fine after that, there is no need to call for a repair.

Sep 14, 2017 | liftmaster Home Security

1 Answer

On the Liftmaster remote control, there are two smaller push buttons to the left of the large button which opens the door. What are the two buttons used for?

You could program these buttons to operate other garage door openers or to control other devices that work on the same frequency. has light controllers that let you turn on or off a light in your home with the garage door opener. You can easily program one of the small buttons to control the lighting system instead of the main button. (Thus the light would be controlled independently of the door opening and closing.)

Single button remotes can be purchased but currently most garage door openers are sold with the 3 button versions.

I hope this helps.

Cindy Wells
(In my household, there are 4 garage door openers installed. When three of the door openers were on the same frequency, we could have had each one respond to a different button on a three-button remote. Now two are on a separate frequency so only two buttons have been programmed on the various remotes. (One group opens the house and workshop; the other opens the house and barn.))

Apr 30, 2011 | liftmaster 83lm Billion Code 3-button...

1 Answer

Garage door is opening when the neighbor open theirs with remot

You say you "setup the remote and the main box but doesn't solve." I think you mean you programmed the unit but I'm not sure. Anyway try holding the smart/learn button in for 10 seconds and this will erase the memory. None of the remotes should work. Now when you are sure the neighbor will not be using their opener, program your remotes. This may be what you did but I'm not sure.

Aug 27, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Neighbor opening our garage door

Report this problem to the Manufactuer stating your model number of controller and remotes too and they may help solve your problem faster than getting offside with your neighbour,apart from that the remotes and motor controller may need replacing to give you more security and control over your own secure enviroment,

I have fitted many security devices,alarm panels,cameras,sensors,keypads,etc,
and never had to repair this type of fault as the supplier or manufactuer has always assisted with their products thru warantee or advice,

I have 20 years of experience in the industy in NZ,Thanks MISTERDJ

Jun 12, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

What are buttons on remote for, besides the opening button?


Mar 27, 2009 | Sears Craftsman LiftMaster Chamberlain...

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