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Sounds like main board fault. Contact the authorized service center for Philips. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Resetting the TV If the buttons on the remote AND the buttons on the TV case do not work (channels do not change and you cannot open or navigate the menu), the TV has stopped responding. Reset the TV as follows:
NOTE: Some TVs have a reset button. If available and accessible, try using the reset buttons before using the steps below. Using the reset buttons can save time.
1.Unplug the TV power cord from the power outlet. 2.Unplug any connected devices (DVD, Set-top boxes, etc...) 3.Press and hold the TV power button for five seconds. 4.Plug the TV power cord back into the power outlet and turn on the TV. 5.Open the on-screen menu to confirm that the TV is responding again. 6.Turn off the TV and reconnect the devices. 7.Turn on the TV.
You need to set up the cable box remote for your TV , now you are just turning off the cable box. Some cable boxes have a switched plug on the back that will turn on and off with the box. If yours has the switched receptacle you can use that to turn the TV on and off by plugging your TV into the switched receptacle. Make sure the TV power is on, the receptacle will kill the power so the clock on the TV wont work. Otherwise you need to set the code for your TVs remote and use the system power button.
Sir this problem is commonly caused by bulging capacitor or loosed connection, if you remove the back cover be sure to unplug the unit. Bulging capacitor is producing a low and unfiltered DC supply, one of the sign is the clicking noise you hear came from the relay. Or try to tap the side of your tv and observe if the tv will react.
This a bad capacitor
this is the loosed or dry joint it is much better if you use a magnifying glass to determine the loosed or dry solder. Good day and best regards.
Just bought one of these cheap. Very basic just plug in and it sets itself up to some degree. - make sure tv is on appropriate AV channel as you'll need the on screen menu to set it up initially using the remote control. - then set the unit to scan for the tv channels, took about 10 minutes for me. - NOTE ... there is no power on/off switch. Plug the cord into the 240v outlet and unit comes straight on. You can't turn it off except by switching offf at power point. Or using the standby button on the remote. - NOTE ... there is also no display on the unit. So yoy have no channel display on the unit. It is all done on the tv screen.
But it does have quite a good EPG and menu guide. For the price, can't complain.
a)Inside the tv there are microswitch CH+- Vol +- power, menu: when the ones are faulty," tv tends to behave at its own", change them, of course before to buy'em, unsolder th'em and try with the remote, tv has to work with out'em.