Clicking noise in the back of tv and wont come on no standby ligh

10,000 continous woking hours is calculated to most of the CRT based TVs.
It is only calculation, but the life span might be much more that that. I've repaired a Sony TV recently, which was released by Sony Corporation Japan. The model is KV1820, an 18" Trinitron TV, still works perfectly. Just see, it is an '80 model one.
http://electronicshelponline.blogspot.com/

Short circuited component/s at its main board. Contact any service technician. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy.
http://electronicshelponline.blogspot.com/

If the red light is blinking in front that sasy lamp. Your lamp needs to be replaced. They cost about $100.00 at your TV Fix It shop. Very easy to replace yourself

There is a problem with the power supply. The clicking is the power regulator continuously turning on and off. This was most likely caused by a power surge.

The first thing to check is a visual inspection of the power supply and look for bad capacitors. This can be done by looking for ones that look bubbled where the top metal part with the T is ballooning out. If you see any, replace these with the correct voltage and fared rating (both located on the capacitor itself) by soldering them onto the power supply.

This will fix the problem most of the time but the power surge could had also damaged other components in the power supply so if you are not comfortable with soldering or did not see any bubbled capicators, or replacing the capicators did not fix the problem replace the power supply board.

un-plug the TV, wait at least 30 seconds, now turn it on again and close your ear to the back of the TV while turning it on, pay attention on hearing a hogh pitching sound coming from the back of the TV, the sound may be quick and go from a lower frequency to a higher frequency really quick if this sound is present then it means the switching power supply. if you don't hear any noises then the power supply is bad. It could also be a bad horizontal driver transistor, it depends on the model TV you got.

Instead of just unplugging the TV, perform a power drain:
1. Unplug the product's power cable so the device is not grounded to the house. 2. Press and HOLD the product's own power button for 1 minute to drain the capacitors. 3. Plug the product back into a wall outlet and try to turn it on.
Note: This procedure works with battery operated devices as well so remove the batteries and hold down it's power button.  Electricity can remain in capacitors and on circuit boards enough to prevent normal functionality. By clearing the residue electricity, your product will have a fresh start and many times this will resolve a buggy or non-responsive device that appears to be dead.
If the TV still won't turn on, then it appears something is wrong with it's mainboard since the TV is still receiving power because the standby light is still coming on.  The cost of fixing an older TV's mainboard could be costly or impossible if the part is discontinued.

working on same model same symtons,pluged sys into a vareact tv came on normal,problem gone.set works ok when plug into ac outlet.can,t say what cause problem,set work ok now without veriact.will air test three days to see if probem returns.will try freez spay on chips.

hi you might have to contact the place where you bout the tv an let them kno your problem if they cant help you then call sharp and let them know your problem your tv is covered for one year so if you had your tv less than a year let them know that also

hi MC, power off unit unplug av cable from back of xbox.. then power up unit.. after a couple minutes the xbox will shut down.. plug the av cable back in and power up.. Good Luck

I had a similar problem a few years back . I purchased a new on/off switch from Sony and that seemed to fix things.

Alleluia