Philips 47PFL5028K/12 - Remote Control repair help

[kalauzz]

Hello,
my remote control for my beloved TV (Philips 47PFL5028K/12) is no more working.
Codes of the remote should be :
PHILIPS 996590004895, YKF314-005

It's blinking endlessy when I insert AAA batteries.
Checked cap seems ok, the transistor (i think is that) seems good
IC not checked.
I thought also to a stuck key.

I switched cap and seemed to be ok but it restarted blinking endlessy again..

May the IC fail if battery polarity is inverted? because my son told me he did that ...

The schematics should be quite simple, anyone has it or some hint?

Best regards

[dick_barton]

Re: Philips 47PFL5028K/12 - Remote Control repair help

Has one of your remote buttons stuck down? Has any liquid been spilt on it?

[kalauzz]

Re: Philips 47PFL5028K/12 - Remote Control repair help

No liquid for what I know ....
Yesterday I retried to put batteries inside and began working fine but after a while restarted blinking endlessly....and after other time was dead unresponsive.
Maybe was working until cap was not fully charged for some IC malfunctioning?

[ivtec]

Re: Philips 47PFL5028K/12 - Remote Control repair help

No liquid for what I know ....
Yesterday I retried to put batteries inside and began working fine but after a while restarted blinking endlessly....and after other time was dead unresponsive.
Maybe was working until cap was not fully charged for some IC malfunctioning?

would try to reheat solder joints.