Haier LE46A2280 all remotes (any button) cause volume to go up.

[lookimback]

So, this TV is acting strangely since yesterday. Pressing volume down on the remote makes it go down one and then back up one. if you hold vol - it will go down. Pressing any button on the Roku remote makes the volume go up. I tried to do a factory reset but every press of the remote makes the cursor move two spots so I couldn't even get to factory reset. Tried unplugging, no luck. It's my girlfriend's TV and since she took it out of storage in October, the vol- button on the TV would make the volume go up. Also, no luck doing a reset from the buttons because of that. I've had TVs in the past with no response to remotes, and also ones with source or menu constantly flashing which turned out to be corrupted eeproms. Does this sound like an eeprom issue? I haven't opened it up yet, I'll probably do that tomorrow.

[budm]

Re: Haier LE46A2280 all remotes (any button) cause volume to go up.

So it does that with the remote but not with buttons on the TV panel?
It is strange that the ROKU remote actual has effect too, I would not think ROKU remote code is the same as your TV.
How about other IR remotes? Do they have the same effect on your TV?

[lookimback]

Re: Haier LE46A2280 all remotes (any button) cause volume to go up.

So it does that with the remote but not with buttons on the TV panel?

Panel volume down makes it go up. Other than that, I think the panel buttons work.

It is strange that the ROKU remote actual has effect too, I would not think ROKU remote code is the same as your TV.

And it's any button on the Roku makes volume go up (at least the directional arrow buttons). We've had the Roku for about 2 weeks, this just started yesterday.

How about other IR remotes? Do they have the same effect on your TV?

I'll try another remote in the morning and see if it also has the same effect.

[lookimback]

Re: Haier LE46A2280 all remotes (any button) cause volume to go up.

Same thing with my son's Vizio remote.

[dick_barton]

Re: Haier LE46A2280 all remotes (any button) cause volume to go up.

If you disconnect the IR board will the side buttons work?

[lookimback]

Re: Haier LE46A2280 all remotes (any button) cause volume to go up.

If you disconnect the IR board will the side buttons work?

From looking at pictures on eBay, it appears the button board connects through the IR sensor. Unfortunately, I can't open the TV until I get her a loner. If I leave her all day without a TV, I may not have a home to go back to.

I have a 47" LG which needs an LED repair, and I just found a complete backlight assembly in my scrap pile, so I'll probably get that together for her and then start troubleshooting the Haier.

[dick_barton]

Re: Haier LE46A2280 all remotes (any button) cause volume to go up.

If I leave her all day without a TV, I may not have a home to go back to.

It's a wise man who knows his limitations.

[lookimback]

Re: Haier LE46A2280 all remotes (any button) cause volume to go up.

It's a wise man who knows his limitations.

Learned the hard way. Lol.

[lookimback]

Re: Haier LE46A2280 all remotes (any button) cause volume to go up.

So, at least for the moment, the TV has gone back to normal. That rules out the EEPROM. I think maybe since the button board was causing problems originally, and it runs through the IR sensor board, that maybe I'll try disconnecting it if the problem reappears.

[lookimback]

Re: Haier LE46A2280 all remotes (any button) cause volume to go up.

So, the TV worked normal for a few days, then started randomly turning up to 100 with nobody touching the remote. I opened it up and disconnected the key control board, but it didn't change anything. What I did find is a brown oily condensation inside the TV. I'm pretty sure it's leaching out from the plastic. Pictures attached. It's totally unwatchable now so I'm going to give her something else and then try to figure out what is causing this. I think maybe a failing component on the IR sensor board. Since the key control passes through it, maybe maybe something along it's path is bad. Maybe whenever the IR sensor is on, it's providing a path to ground for some other failed component. Idk. I'll probably have it in the shop tonight and then I can do some actual testing and troubleshooting.

[CapLeaker]

Re: Haier LE46A2280 all remotes (any button) cause volume to go up.

i don't see any pix?

[lookimback]

Re: Haier LE46A2280 all remotes (any button) cause volume to go up.

Oh, it probably helps if I add the pictures.

[CapLeaker]

Re: Haier LE46A2280 all remotes (any button) cause volume to go up.

eww! looks like some one tried to clean the tv and used too much water / cleaner that ran down.

[lookimback]

Re: Haier LE46A2280 all remotes (any button) cause volume to go up.

eww! looks like some one tried to clean the tv and used too much water / cleaner that ran down.

I asked her if she spilled something in it, or sprayed it with anything. She said no and she bought it new. There's places where the plastic is bubbled too. It sat in a Uhaul storage room for almost 2 years. Steel building and no climate control. That probably didn't help.

[Andrew F. Ali]

Re: Haier LE46A2280 all remotes (any button) cause volume to go up.

I am almost certain that leaking stuff got into the micro-switches. Clean up the 'mess, and give the switches a good spray with some ISA and then a dose of an electronic cleaner trying to get into the switches. Or perhaps a change out of the switches. They most likely would be the 2-pin type.

[R_J]

Re: Haier LE46A2280 all remotes (any button) cause volume to go up.

Locate the board for the buttons and unsolder the vol up tac switch, this should allow the other buttons to function and prevent vol going up. If this solves the issue replace the tac switches
If there is any of that goo on the switch board wash and dry it.

[lookimback]

Re: Haier LE46A2280 all remotes (any button) cause volume to go up.

I am almost certain that leaking stuff got into the micro-switches. Clean up the 'mess, and give the switches a good spray with some ISA and then a dose of an electronic cleaner trying to get into the switches. Or perhaps a change out of the switches. They most likely would be the 2-pin type.

Locate the board for the buttons and unsolder the vol up tac switch, this should allow the other buttons to function and prevent vol going up. If this solves the issue replace the tac switches
If there is any of that goo on the switch board wash and dry it.

I removed that board completely yesterday. Still doing it. I'm going to pick the TV up in a few minutes and then I can do some actual testing. Below is a pic of the switch board. I definitely see some bad resistors. As for the switches, I have some of them, brand new, because I needed one for my car alarm remote once and ordered like 25.

[R_J]

Re: Haier LE46A2280 all remotes (any button) cause volume to go up.

If you disconnected the switch board from the main and the vol still climbs up to 100% it can't be on switch board at fault. I do see mainboard eeprom available so maybe thats where the fault lies?

[lookimback]

Re: Haier LE46A2280 all remotes (any button) cause volume to go up.

If you disconnected the switch board from the main and the vol still climbs up to 100% it can't be on switch board at fault. I do see mainboard eeprom available so maybe thats where the fault lies?

I'm on my way to get it now. As for the eeprom, I thought that at first, but then it started working fine for a couple days. With a corrupted eeprom I'd expect it to remain faulty until it was replaced.

[R_J]

Re: Haier LE46A2280 all remotes (any button) cause volume to go up.

Yes, not very likely the eeprom, I just saw it was available from shopjimmy.