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Thanks for your tips,
you're probably right, it could come from the focus part. I would have never thought of checking that voltage for no raster. The weirdest thing is happening. With the HV cage in place it does not work, with the HV box removed all is fine!!. I checked for shorts and bad contact and nothing to be found. Could let it go without the cage but not really safe. I guess it was good to remove the cage because I found out that the Flyback is running very hot and the wax is melting. The efficiency coil is seized up and I cannot turn it (if this could solve the temp problem). I am affraid to break it by forcing it to move. Is there a way of freeing the ferrite. About the 56K resistor, I replaced it with one with the proper value, this can help as well. Again, thanks for your help.
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