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10 seconds doesn't seem an excessive amount of time. Standby is supposed to be a power saving mode - the fewer parts of the circuit that are kept in complete readiness for switch on, the less power will be saved.
These days there is much prejudice against using the standby mode and it would be expected designers would respond to this by changing the internal arrangements so standby consumes less power so when the set is switched on it will take time for capacitors to charge and digital computers to fully boot and so forth.
Think of it not so much as a TV but as a computer. A 10 second reboot from the sleep mode wouldn't be so unusual...
If the TV works ok otherwise you probably have no worries...
First is the set should have a 1 year parts and or labor warranty--second: in order to offer advice or give help I need to know brand and model number.
You Need a new Power Supply, part # LJ44-00025A
buy it here for $139 http://www.adc-ast.com/
I have my tv working like new.
If you want this time the power supply last, do not turn off, just
press tv/video button to switch input source, let the tv in sleep mode.
This fault can be caused by low secondary supply voltages often caused by the value of capacitors becoming low and requiring replacements but you will have to have a technician.
SUPER8
hello john.
this is a late suggestion,but if you still have the set & the proplem
in existence.
then i suggest you check with the lamp---situated on the right hand
side ,two screws to undo--once in further two screws--pull back the
casing clean with a dry cotton cloth & with that clean the cooling
fan just adjasent to the case.+ remember to leave the tv on standby mode for 3 minutes before you completely switch it off ,as this helps to cool down the lamp the fan at rear still propels while the tv is in standby mode.--------ASH
have you tried changing the batteries just to elimate this problem
change them
sometimes if the batteries are low in electronic devies, they send a wek signal to its receiver (your tv),
your tv gets confused and then switches itself to standby
if you have changed the batteries and this problem still persists
it can only then be th PSU or power supply unit, take it to your local tv repair shop of mastercare somewhere like that, its going to be cheaper to get it repaired than replacing the whole tv
PSU'S generally 20 to 50 pounds depending on model
don't deo it yourself though unless you've got a capacitor discharger (or a nice 25KV will be on its way to your body)
if your remote is ok then this is due to power supply failure in your tv.
either it is loose in oscillator ckt in switching section or it has failed.
if not tech person call tech to fix it.
not a major problem.
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