First, the model number you supplied, KV-34XTR10, is not a 50 inch set but a 43 inch tube set.
Secondly, the symptoms you relate of have audio but no video - or that it comes on late, and gets longer as time goes by, is related most often to failure of the high voltage system. The repair nearly always revolves around the flyback transformer and/or the horizontal deflection amplifier (the horizontal output transistor, for example).
The best repair method is to replace both the flyback and the horizontal output transistor because if only one is replaced it is common for the other to fail soon thereafter.
If you need a tech , here you are a link of a tech website www.tvrepairjacksonvillefl.com
henry
October 2012
howtomendit.com for free repair help, information and advice.
