volume goes down by itself


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volume goes down by itself

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someone11
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Jan 24, 2014, 7:15 PM

Post #1 of 38 (19616 views)
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volume goes down by itself	Can't Post

I have a sylvania model LC220SL1 tv that when powered on the volume automatically goes to 0. The remote doesnt work eiither. The chanel buttons on the tv work but the volume buttons dont quite work. Sometimes they do but most the time the volume up button brings up the tv menu. The menu button is right next to the volume up button. Any idea whats going on? Im god with electronics and would like to fix this myself i possible.

-Nick

(This post was edited by someone11 on Jan 24, 2014, 8:10 PM)

Ron.M
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Jan 24, 2014, 7:58 PM

Post #2 of 38 (19606 views)
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Re: [someone11] volume goes up by itself [In reply to]	Can't Post

someone11;...

I do not work on LED/LCD or Plasma TVs...
But , I'm "god" with analog TVs..
But , I've seen enough of this type of problem to offer some very limited assistance till someone better qualified than I comes along...

It appears to me that the small panel that has the pushbuttons for Power , vol up/down , chan up/down & the menu is most likely bad...
there could be a defective tact switch & my guess is that it's the vol down that's bad..
IF you have good soldering skills , remove that panel & unsolder & remove the vol down switch , plug the panel back in , turn the TV on & see if that does it...
The remote may/maynot start working again...
Possible IR reciever or hand remote problem...
Bad batteries ???...

Good Luck...

Later...Ron.M... Cool

..
Veteran & Retired TV technician

someone11
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Jan 24, 2014, 8:10 PM

Post #3 of 38 (19603 views)
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Re: [Ron.M] volume goes up by itself [In reply to]	Can't Post

In Reply To

New batteries in remote and the remote is sending a sygnal- verified with camera. The tv was left in my truck in the cold for about a week. I have a feeling the moisture from it warming up inside may have done something. Is there a way to completely disable the controls on the tvitself, lets say, by unplugging them? And i can soldier.

Ron.M
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Jan 24, 2014, 8:40 PM

Post #4 of 38 (19599 views)
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Re: [someone11] volume goes up by itself [In reply to]	Can't Post

someone11;....

You'll need to remove the back cover...
Look for the small panel that has the pushbuttons on it...
You should see some wiring going to & connected on another panel (Most likely the main panel)..
There might be a small connector on the pushbutton panel also..
You should be able to disconnect at the pushbutton panel or on the other end of the wiring...
Disconnecting the "controls" (pushbutton panel ??) will tell you nothing...
The IR (Remote reciever) is most likely on the same panel...
Just unplugging the panel disables not only the manual pushbuttons , but also disables the remote from working...
You have to remove the cause to determine the fault..
So , the TV probably won't turn on at all...
When you remove only the vol down switch & IF the TV comes on normally & the other functions return , then you'll know what the cause was...
Chances are that sitting outside in the cold & condensation damaged those small tact switches..

Later...Ron.M... Cool

..
Veteran & Retired TV technician

someone11
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Jan 24, 2014, 9:17 PM

Post #5 of 38 (19590 views)
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Re: [Ron.M] volume goes up by itself [In reply to]	Can't Post

I just tok the tv apart to see what i could find. You are right, the IR sensor is on the same board al the push buttons are on. Unplugging that theres no way to turn on the tv. Side note, with the panel unplugged the tv comes on by itself when plugged in to the wall. Is there a place i could just buy that whole board so i avoid soldiering? That would be the easiest route i would think.

someone11
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Jan 24, 2014, 9:40 PM

Post #6 of 38 (19587 views)
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Re: [someone11] volume goes up by itself [In reply to]	Can't Post

After doing some more reading on the forum it sounds like it could be a bad or stuck tac switch, sound right? If so i feel i could replace those myself, but i dont know where to get new ones.

Ron.M
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Jan 24, 2014, 9:47 PM

Post #7 of 38 (19587 views)
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Re: [someone11] volume goes up by itself [In reply to]	Can't Post

someone11;...

Quote

And i can soldier.

Quote

Is there a place i could just buy that whole board so i avoid soldiering?

Conflict of interest ????
OR just lazy ???
Answer is yes...

I'm doing some research on your TV as we speak (?)...
I need about an hour & I should have some better info for you...

Quote

Side note, with the panel unplugged the tv comes on by itself when plugged in to the wall.

Where is the volume level at ???
All the way down , partly up , midway or ???

Can you remove the panel & see if there is any corrosion on or near the switches & the IR receiver ???
While you're at it , see if there's a label or part number printed on the board OR label...
Please post it...
THANKS... Sly

..
There are some places that you can buy that board...
Shopjimmy is one that you can trust...
But , it will cost you much more that the switch(es) will..
AND , part numbers ARE CRUCIAL !!!
MUST be CORRECT !!!

But , as I've said in the past:=>...
It's your TV....
It's your money....
It's your call...

Later...Ron.M... Cool

...
Veteran & Retired TV technician

Ron.M
Veteran

Jan 24, 2014, 9:53 PM

Post #8 of 38 (19585 views)
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Re: [someone11] volume goes up by itself [In reply to]	Can't Post

someone11;...

Quote

After doing some more reading on the forum it sounds like it could be a bad or stuck tac switch, sound right? If so i feel i could replace those myself, but i dont know where to get new ones.

Have A.D.D. ???
Seems I said that earlier ...
IF you can get up the courage & have desoldering braid WITH RESIN , it is real easy to remove the vol down switch !!!
I'll show where you can get the switches IF they ARE BAD !!!!

Later...Ron.M.... Cool

...
Veteran & Retired TV technician

someone11
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Jan 24, 2014, 9:57 PM

Post #9 of 38 (19584 views)
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Re: [Ron.M] volume goes up by itself [In reply to]	Can't Post

In Reply To

someone11;...

Quote

And i can soldier.

Quote

Is there a place i could just buy that whole board so i avoid soldiering?

Conflict of interest ????
OR just lazy ???
Answer is yes...

I'm doing some research on your TV as we speak (?)...
I need about an hour & I should have some better info for you...

Quote

Side note, with the panel unplugged the tv comes on by itself when plugged in to the wall.

...

I am lazy lol But also i feel there could be error on my part in the soldiering causing something else not to work. Whereas a whole new baord is simply plug and go. I figured a board would be more expensive but HOW much more expensive? lol. I cant quite look into the tv whenever because im using the internet on my xbox and i need the tv. My charger broke on my laptop so this my only option.

As for numbers, i did write some down when i had the board disconected. And i didnt see any corrosion, i thought that may be the issue also but i didnt se any.
This number seemed unique to the board- LC7 19/22W and it said "base" on it.
This number was on other boards- BA94N0F0102 2_B another board had 2_A
As for where the volume was when the board was off- im unsure because the volume bar wasnt lit up and there was no way to change the volume. I assume it was at 0 since thats where it was at when the tv was shut off.

(This post was edited by someone11 on Jan 24, 2014, 10:09 PM)

someone11
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Jan 24, 2014, 10:02 PM

Post #10 of 38 (19581 views)
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Re: [Ron.M] volume goes up by itself [In reply to]	Can't Post

In Reply To

someone11;...

Quote

After doing some more reading on the forum it sounds like it could be a bad or stuck tac switch, sound right? If so i feel i could replace those myself, but i dont know where to get new ones.

...

Ithink i just misunderstood what you meant by removing the volume down switch. I understand now. I have to get ahold of a soldiering iron now. Im away from home for a few months right now.

Ron.M
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Jan 24, 2014, 10:14 PM

Post #11 of 38 (19574 views)
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someone11;...

Quote

Im away from home for a few months right now.

What exactly does that mean ???

BTW;...
No need to "quote" the whole post to reply to me...

If you look below the reply box , the post you are replying to is there...

Later...Ron.M... Cool

...
Veteran & Retired TV technician

someone11
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Jan 24, 2014, 10:18 PM

Post #12 of 38 (19570 views)
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Re: [Ron.M] volume goes up by itself [In reply to]	Can't Post

Im at college, home is 6 1/2 hours away. At home i have all the soldering equipment i would ever need because my step dad is an engineer. He use to work for zenith, now he works on the mirrors for GM.

Ron.M
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Jan 24, 2014, 10:30 PM

Post #13 of 38 (19566 views)
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Re: [someone11] volume goes up by itself [In reply to]	Can't Post

someone11;....

I found an UNBELIEVABLLY COMPLETE service manual for YOUR TV !!!!
I will be back in 1 hour to enlighten you on your options...

Later...Ron.M... Cool

...
Veteran & Retired TV technician

someone11
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Jan 24, 2014, 10:44 PM

Post #14 of 38 (19561 views)
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Re: [Ron.M] volume goes up by itself [In reply to]	Can't Post

Awesome! Hopefully i didnt do too much... i cut off the volume down and volume up tacts -one at a time- but its still doing the same thing.

Ron.M
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Jan 24, 2014, 11:38 PM

Post #15 of 38 (19555 views)
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Re: [someone11] volume goes up by itself [In reply to]	Can't Post

someone11;....

Quote

but its still doing the same thing.

Do you mean the same thing as in your 1st post ???
Do you have a DVD player in your TV ???
I need the serial number to get the correct parts...

Later...Ron.M... Cool

..
Veteran & Retired TV technician

(This post was edited by Ron.M on Jan 24, 2014, 11:42 PM)

jts1957
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Jan 24, 2014, 11:52 PM

Post #16 of 38 (19546 views)
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Re: [Ron.M] volume goes up by itself [In reply to]	Can't Post

Damn Funai!

-------------------------
Location: Far, Far Away

someone11
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Jan 24, 2014, 11:53 PM

Post #17 of 38 (19545 views)
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Re: [Ron.M] volume goes up by itself [In reply to]	Can't Post

By same thiing i mean volume going to 0 and still no use of the remote.
Serial number- ds1a1028151270

Ron.M
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Jan 25, 2014, 12:05 AM

Post #18 of 38 (19543 views)
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someone11;.....

Here's your panel;=>....

IF there's NO DVD Player in your TV !!!

jts1957;....
I'm in TOTAL SHOCK !!!
Found a DECENT Service Manual for these TVs !!!!

Later...Ron.M.... Cool

....
Veteran & Retired TV technician

Ron.M
Veteran

Jan 25, 2014, 12:28 AM

Post #19 of 38 (19536 views)
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Re: [someone11] volume goes up by itself [In reply to]	Can't Post

someone11;...

Tact switches are fairly cheap...
Due to the fact that this TV was out in the cold & the remote doesn't work , you may also have a bad IR receiver on that panel...
So my suggestion would be to replace the whole panel...
That panel is available at Shopjimmy.com for $19.83 + s&h...
They have 2 in stock...
Here is the link;=>...
http://www.shopjimmy.com/...t/?q=BA94N0F0102+2_B

Further info on that panel;=>...
http://www.shopjimmy.com/...njn-function-cba.htm

Good Luck..... Sly

...

Later..Ron.M.... Cool

...
Veteran & Retired TV technician

(This post was edited by Ron.M on Jan 25, 2014, 12:30 AM)

jts1957
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Jan 25, 2014, 12:40 AM

Post #20 of 38 (19532 views)
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Re: [Ron.M] volume goes up by itself [In reply to]	Can't Post

Presuming does NOT involve Digital Main board.

-------------------------
Location: Far, Far Away

someone11
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Jan 25, 2014, 2:05 AM

Post #21 of 38 (19527 views)
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Re: [jts1957] volume goes up by itself [In reply to]	Can't Post

Oh yeah sorry, there is no dvd player in the tv. The odd thing is the remote wrorked a few days ago except for turning on the tv. Right now the volume bar on the tv stays lit up like a button is constantly being pushed. Would that cause the remote not to work? And yes that is what the board looks like. $20 isnt bad in my opinion.

someone11
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Jan 25, 2014, 4:26 PM

Post #22 of 38 (19519 views)
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Re: [someone11] volume goes up by itself [In reply to]	Can't Post

My tv must be possesed or something. I turned it on this morning and the volume isnt going to 0 anymore and i have full use of the remote EXCEPT for turning on the tv. What now? lol

Ron.M
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Jan 25, 2014, 6:34 PM

Post #23 of 38 (19512 views)
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Re: [someone11] volume goes down by itself [In reply to]	Can't Post

jts1957;....

Quote

Presuming does NOT involve Digital Main board.

As you most likely have done in the past , troubleshooting by using "process of elimination"... Wink

..
Also known as;=>...
IF you can't find out what it IS , find out what it AIN"T !!!.. Wink

That's what I'm doing right now...

someone11;...

Quote

Would that cause the remote not to work?

Since you tested the hand remote using a camera , we can safely rule out a bad remote...
That leaves us with a bad IR receiver or as jts1957 suggests , a bad "Digital Main" board..

Some questions I NEED answered;=>...
When you first brought the TV inside from out in the cold , how LONG did you wait before plugging the TV in & turning the TV on ???
Two answers needed for that one question...
WHEN did you bring the TV inside ???..
What day was it ???

Thanks... Sly

...

Later..Ron.M... Cool

...
Veteran & Retired TV technician

(This post was edited by Ron.M on Jan 25, 2014, 6:38 PM)

someone11
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Jan 25, 2014, 7:37 PM

Post #24 of 38 (19508 views)
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Re: [Ron.M] volume goes down by itself [In reply to]	Can't Post

I dont remember exactly how long it was. Maybe left it inside for an hour before plugging it in AND turning it on? It was 2 weeks ago roughly and i dont remember what day it was. Why would that matter? And i spoke too soon, its back to doing it again.. except not all the time. Every once in a while the volume bar lights up and gos down a notch or two like someone hit the volume down button once.

(This post was edited by someone11 on Jan 25, 2014, 7:41 PM)

Ron.M
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Jan 25, 2014, 9:25 PM

Post #25 of 38 (19500 views)
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someone11;...

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Why would that matter?

Here's why...
When you bring in TVs , etc , from the cold outside , condensation WILL form inside &/or the outside on electronic components & that includes tact switches & the IR receiver..
Especially if it's VERY cold where you are..
Condensation as you know IS water...
Even tho a lot of the power supplies are low voltage , there WILL be some shorting going on..
Question is , how much has been damaged & what parts are involved ...
So , we started with the most probable of parts & that is the pushbutton control panel..
IMHO , it looks like condensation got into those tact switches & probably the IR receiver & did some damage..
The ONLY way to find out is to replace the panel & PRAY a LOT !!!!..
IF that doesn't fix the TV , then you are looking at a much larger expense with the possibility of having a bad Digital Main board....

Once again;..
But , as I've said in the past:=>...
It's your TV....
It's your money....
It's your call...

Later...Ron.M... Cool

..
Veteran & Retired TV technician

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