TV that does not respond to some keys.

C

Chaos Master

Guest
Hello.

I have an LG TV (20CP52A) with a problem:

Suddenly the TV stopped responding to some keys like MENU and PICTURE.
The remote control is good as I tested it in another TV and the problem also
happens when using the keys on the TV panel.

What can be causing this problem?
Bad EEPROM (I don't think so, else things would be much more screwed up)?

Thanks for any help.

--
Chaos MasterŽ - Porto Alegre, RS, Brazil
irc.brasnet.org - #xlinuxnews and #poa
marreka.no-ip.com (ainda năo pronto)
LRU #327480
 
Chaos Master wrote:
Hello.

I have an LG TV (20CP52A) with a problem:

Suddenly the TV stopped responding to some keys like MENU and PICTURE.
The remote control is good as I tested it in another TV and the problem also
happens when using the keys on the TV panel.

What can be causing this problem?
Bad EEPROM (I don't think so, else things would be much more screwed up)?

Thanks for any help.

Check for stuck tac switches on the keys, or gunk that may have dripped
Click to expand...
on the circuit board. Do all the switches feel the same?

Bob



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Check for stuck tac switches on the keys, or gunk that may have dripped
on the circuit board. Do all the switches feel the same?

Bob
Click to expand...
Another thing that can be done is to try and reset the SYSCON. Unplug the set
for the night and plug it back in the next morning and see what happens after
that. - Reinhart
 
Defective key switches, loose connection from the keypad, or a defect in the
processing.

--

Greetings,

Jerry Greenberg GLG Technologies GLG
=========================================
WebPage http://www.zoom-one.com
Electronics http://www.zoom-one.com/electron.htm
=========================================


"Chaos Master" <slakker@brasnet.org> wrote in message
news:c3ge4e$27ms6n$3@ID-88878.news.uni-berlin.de...
Hello.

I have an LG TV (20CP52A) with a problem:

Suddenly the TV stopped responding to some keys like MENU and PICTURE.
The remote control is good as I tested it in another TV and the problem also
happens when using the keys on the TV panel.

What can be causing this problem?
Bad EEPROM (I don't think so, else things would be much more screwed up)?

Thanks for any help.

--
Chaos MasterŽ - Porto Alegre, RS, Brazil
irc.brasnet.org - #xlinuxnews and #poa
marreka.no-ip.com (ainda năo pronto)
LRU #327480
 
Bob Urz screams:


Check for stuck tac switches on the keys, or gunk that may have dripped
on the circuit board. Do all the switches feel the same?
Click to expand...
Yes. It was suddenly, and since I am the only user of this TV I am 100% sure
nobody tried to clean it.

(And even if the remote control was bad, it is one of those true "no user
serviceable": there is no way to open it.)
--
Chaos MasterŽ - Porto Alegre, RS, Brazil
irc.brasnet.org - #xlinuxnews and #poa
marreka.no-ip.com (ainda năo pronto)
LRU #327480
 
Quoting the poster called 'LASERandDVDfan' that posted
<20040320022525.07843.00000040@mb-m11.aol.com> in sci.electronics.repair at 20
Mar 2004 07:25:25 GMT .

Another thing that can be done is to try and reset the SYSCON. Unplug the set
for the night and plug it back in the next morning and see what happens after
that. - Reinhart
Click to expand...
I've done this and this seems to have solved the problem for now.


--
Chaos MasterŽ - Porto Alegre, RS, Brazil
irc.brasnet.org - #xlinuxnews and #poa
marreka.no-ip.com (ainda năo pronto)
LRU #327480
 
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