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.
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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?Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809 -
Re: Haier LE46A2280 all remotes (any button) cause volume to go up.
Panel volume down makes it go up. Other than that, I think the panel buttons work.
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.
I'll try another remote in the morning and see if it also has the same effect.------------signature starts here------------
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Re: Haier LE46A2280 all remotes (any button) cause volume to go up.
Same thing with my son's Vizio remote.------------signature starts here------------
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Re: Haier LE46A2280 all remotes (any button) cause volume to go up.
If you disconnect the IR board will the side buttons work?Willing to help but I'm no expert.Comment
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Re: Haier LE46A2280 all remotes (any button) cause volume to go up.
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.------------signature starts here------------
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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.------------signature starts here------------
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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.------------signature starts here------------
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Re: Haier LE46A2280 all remotes (any button) cause volume to go up.
i don't see any pix?Comment
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Re: Haier LE46A2280 all remotes (any button) cause volume to go up.
Oh, it probably helps if I add the pictures.
Attached Files------------signature starts here------------
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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.Comment
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Re: Haier LE46A2280 all remotes (any button) cause volume to go up.
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.------------signature starts here------------
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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.Comment
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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.Last edited by R_J; 05-15-2018, 12:02 PM.Comment
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Re: Haier LE46A2280 all remotes (any button) cause volume to go up.
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.Attached Files------------signature starts here------------
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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?Comment
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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.Comment
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On this Vizio D65x, the volume will change on its own. I don't mean like during commercials where the volume will increase. I mean its like the (+) volume button on the remote is pressed and the actual volume dialog is displayed on the screen going up. It will do this, then the volume may start going down. It might go all the way to "0"or it might stop at a different number, then start going back up. The whole time its doing this, the volume dialog is shown on the screen.
It wont do it until it has been "ON" for 20 or 30 minutes, so it does seem to be heat related.... -
I have a strange fault on a Sony amplifier. The volume control varies the display from MIN, then 1 up to 30 and then MAX as expected. At MIN there is no sound. However, at 1 it is quite loud and increasing above 1 does not change the sound level.
I have tried a Cold Reset as per the service manual.
I have looked at the I2C clock and data to volume control chip IC501 (BD3499FV). Data is only sent to IC501 when the volume is set to MIN or 1. At any other setting no data is sent to IC501.
I have looked all the way through the service manual and tried many online... -
Hi,
I bought a used Marantz SR5007 and it's giving me some issues that I can't seem to really place. It functions well in most settings, ARC mostly works, it has no issues driving my speakers in any of the digital input modes, but I'm having issues running analog inputs in direct or pure direct mode. For some reason in this mode there's distortion for every volume increment I give it, but once the volume is stable it has no issues. Muting creates a loud pop, switching to another source also causes a pop and so does turning off the amp in that mode. Again, no issue in the digital modes.... -
I have this soundbar and when I turn it on it works until I turn the volume above 30.
Then the display show “PROT” protection and shuts off.
I can turn it right back on and it works until volume hits 30 again.
There is a little static on the surround speakers so I unplugged them but still have same problem. I tried unplugging all speakers also and when volume goes above 30 it shuts off.
I can turn the volume above 30 if nothing is playing but as soon as I play something it shuts off.
It will play fine for hours with volume... -
Hello again. This time it's a TCL 50S425 Roku TV that is stuck in a boot loop.
The TV will power on, display the TCL logo for a few moments, and then the TV restarts in an endless loop. It sounds to me like corrupt firmware.
So far, I have:
1. Disconnected the power cable and pressed and held the power button down for 30 seconds and tried powering on again - No change.
2. Pressed and held the RESET button for up to 60 seconds. - No change.
3. Tried disconnecting power cable in the middle of one of it's loops,...
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