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in that receiver ther is a fuse that controls the display, I have the same unit, there are 4 fuses by the power supply, it would be one of those, I cant remeber which one but if the fuse is blown it will turn of the entire display. Check that out and if thats not the problem, then there is a short in the unit.
This problem is beyond a blown fuse most likely. The fuses for the unit are located on the circuit boards and the back will need to be removed to access them. This problem could be due to a missing voltage that is used to turn on the picture section of the electronics. I would search for a used unit on ebay or parts on ebay and swap out the boards. The board swap is not too complex but voltages are dangerous within the set and service by a qualified electronics technician is recommended on this unit. Thanks and good luck. Dan
on the main board of the tv there is a fuse located if that is faulty this can happen,there are also many other possibilities but check out the fuse first many a times replacing the fuse solves the problem
as its very negligible to replace the fuse the cost of fuse is under $1.
You are not likely to find the board easily, but you should be able to replace the convergence ICs relatively easily. Look at the board. Try resoldering the pins on the STK ICs. If that fails to resolve your problem, replace the ICs. There may be some pico fuses located close by or low valued resistors that may be open. Check for those as well.