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Fault to its main 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.
this probably cannot be replaced as the tv firmware is programmed to utilise it. You might have to write code and flash the tv firmware to make another device function in its place. I think it is probably impractical rather than impossible to do...
BUT GOOD LUCK
These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. Viewing it in "Mosaic" or "Sidebar" will make surf easy. http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience.
Hello. If you have multimeter available you can actually check if voltage present at the end of your power cord first. If it's OK than you have to remove back cover from your TV and locate power supply board. It's very easy - it should be next to the power cord receptacle. First look for capacitors that have bulged tops instead of flat ones. If you locate any - replace them and check if it's going to take care of problem. Right next to receptacle connection is fuse located and you have to check if it's open. Replace it if needed. If new fuse got blown right away - you have short in power supply board. If fuse is OK - connect power cord and using multimeter try to figure out if 5V is supplied from Power supply board to the main board (the one that have all inputs attached to it). If 5V is present but power LED in front of the TV is still dead - you could have problem with main board. Best regards. Russ.
Please which spec of fuse do you advice I use
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