Hi, my tv was working fine today then the dog jumped on sofa and not sure if he pressed any buttons but the tv turned of and now it wont switch on. when i turn it on the blue light that usually turns off just flickers and no screen is available
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Re: suddenly no picture
It's doubtful your dog caused the problem; this model has seemed less reliable than most Sanyo products, there are many threads to be found detailing a number of different failures.
The problem is most likely related to the power supply but its behavior could be caused by protective circuits and a failure in the high voltage section.
You may have trouble having the set repaired for less than the cost of replacement. Parts specific to models over 4-5 years of age may be tough to find and you may be without TV for weeks if you choose to repair it.
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Press the TV button on the remote, make sure the TV is plugged in, check the electrical outlet to make sure it is live if the TV does not turn on. If these actions do not solve the problem, press the Power button on the front of the TV. If the TV turns on, replace the batteries in the remote control and reset it by pressing the number 1 button for 60 seconds. If necessary, reprogram the remote.
Unplug the TV for two minutes, then plug it back in if the buttons on the remote don't work. Make sure the remote is in TV mode.
Change the settings on the sleep timer if the TV turns off unexpectedly. Unplug the TV and wait five minutes before plugging it back in if necessary.
Check your antenna connections and cables if the sound is okay but the picture is poor. If all the connections are good, adjust the sharpness function.
you unplugged the front panel with the buttons on it and the remote reciever
you have to slide the chassis out
reach in to the front and replug the front panel to the plug from the main board
then slide all boards back in place
Chances are the Power Supply failed because the Horizontal circuit failed. It would not be out of line if the repair cost ran 250.00 plus.
It is probably not worth fixing due to the age of the set.
Hope this helps,
Sometimes you can change the input by just clicking the channel button up >>> after the highest tv channel it'll go to Input 1, Input 2, etc. That's worked on one of my tv's but not all of them so it might work for you, too. Next suggestion would be to buy yourself a couple of universal remotes & keep them in a junk drawer for when you need one! We've found this PRICELESS!!! (Buy a couple when they're on sale & store them for those days when the remote was devoured by that oh-so-sneaky sofa!)
Check soldered in fuse R607 in power supply circuit =
If open, replace it and bad converter xistors ( 2SC4834)
Next, replace shorted horizontal output transistor w/ first Quality.
Solder any / all bad connects,esp.horiz drive to base of horiz.
o / p xistor. Soldering is critical or it will blow up again......