[Muse]

I have the Home Theater Master MX-700 and the advance button ( >> ) has gotten sticky. It still works, it just feels funny (pops up sort of slow). Granted, it's probably the single button I have used the most. I figure the contact has gotten gunked up, but maybe it's worn out in some way. I haven't had good success the past dealing with button problems with remotes (i.e. sticky) and before I spray or apply any kind of liquid to this I want to research the topic so I don't make matters worse. My TV's remote, for instance, has gotten to the point where a few buttons are all but useless or completely dead. Whatever solutions I sprayed or dabbed on them failed to revive the keys What do you do when remote buttons start acting weird? Thanks for advice, insights, recommendations, etc.

 

[The Robman]

Do you know how to open the remote? If so, I bet all you need to do is take the remote apart and clean it.

 

[Muse]



Quote:
Originally Posted by The Robman /forum/post/15462115


Do you know how to open the remote? If so, I bet all you need to do is take the remote apart and clean it.

Well, I'm pretty handy but I've never opened the MX-700. How can I go about cleaning that key once I have the remote open? I have a number of solvents including 70% rubbing alcohol, 95% and 100% alcohol, acetone, naphtha, paint thinner, contact and tuner cleaner (in an aerosol can), contact cement thinner, and I guess a few others.


Edit: I don't see a way to open the MX-700 other than attempting to pry it apart. There are no apparent screws of any kind.

 

[The Robman]

I found the following description on how to open the remote here :

Quote:
Grasp the remote in two hands with the "Light" button sticking up and closest to your left hand. If you rotate the top of your left hand away from your body and the top of your right hand towards your body, flexing the remote, a small opening will appear to the right of the "Light" button. Get a small screwdriver in there and start working it around the perimeter of the remote. There are indents every inch or two around the remote. Be careful when separating the shells as the battery holders are integrated into the black part of the shell and can bend easily.

As for the cleaning itself, rubbing alcohol should do the trick, but spray contact cleaner would also work. Just be careful if you have to clean the actual button sheet as you want to avoid touching or otherwise getting stuff on the bottom of the sheet (ie, the side that touches the PCB) as the bottom of the buttons need to remain conductive.

 

[Muse]

Thanks, Robman, terrific information!