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...
SOURCE: TV & Tuner stays in Standby mode
Assuming you have tried changing batteries in your remote and any front panel power switch your set has, the main power supply is probably at
fault and without some technical background and a couple of test instruments,
you will not be able to do the repair yourself.
What you can do though is; unplug the set, let it
stand overnight or at least several hours, remove the back panel and look for a
separate board with mostly larger components on it; it will have a ferrite core
transformer on it and several larger capacitors which are cylindrical and
mounted vertically to the board.
Before touching anything inside,
especially on that board, allow several hours to be safe since the larger
capacitors can hold a painful voltage charge for some hours.
If you see signs of overheating
such as discoloration of the board material, it may not be repairable but if
you can find a part number on the board, you might be able to buy the power
supply and install it yourself.
If there are no signs of heat
damage to the board, there may be companies offering to repair it as a
subassembly instead of repairing the whole set which could be much more
expensive.
If you choose to replace or have it done, the power supply still may not be at fault since most
are capable of switching on and off if a downstream problem is causing an
overload.
SOURCE: lcd tv turns off after 5 mins, leave 2 mins comes on to stand by
Swollen ( bad ) caps in power supply first place to look.............T.
SOURCE: SAMSUNG OMNIA i 900 SCREEN BLACK AFTER STAND- BY MODE
it looks like a software problem regarding pda part of it ..
www.omnia-repair.com
SOURCE: my hisense tv lcd model number f40v87c stays in the stand by mode what is the problem?
Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Before going further; try a hard reset first. If it does not help you, replace the main digital board. There are two methods to reset TVs. The first is simple to do; a Hard Reset. The other is somewhat skilled; is a Factory Reset (System Reset). To make it a hard reset, just unplug the TV from AC mains wall socket, and re-plug it back after 15 minutes or so. If you do this by overnight is better. This procedure will make it a hard reset. If you want to make it a system reset [Factory Reset]; you have to enter its service mode option, and select the factory reset option. If you wish to get some details; visit the site linked here.
53 views
Usually answered in minutes!
×