The problem turned out to be caused by a poor solder joint on R530. This is in the HV sensing circuit and is associated with IC501/ comparator. The resistor was replaced for good measure and proper operation restored.
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If your lines are vertical, you have horizontal problem. Vertical lines are a result of an aging TV. It would not be feasible to repair this. There has been an overworked Flyback transformer, Horizontal transistor and regulator and an aging picture tube. It is time to find another TV.
I've just recently connected my old 32" Sony KV-32HS510 to my HP G60 Laptop via an HDMI (laptop) to DVI HDTV port(TV) with a cable.
I'm running Windows Vista on my laptop with the nVidia software. Once I've plugged in the TV to the HDMI port, the software initializes (recognizes the TV) and then I can select it as my second 'monitor' in the nVidia control panel.
I found I had to tinker with the resolution settings in the nVidia program to find an optimal resolution where the sides of the screen weren't 'cut off' by the TV.. I finally ended up with the resolution 1152x768 (I believe). It might be different for everybody, as I'm told Vista might do things differently than XP... But you should be able to tinker with the resolution settings and adjust the screen size...
You need to call for service now that the unit still turns on,the problem will become expensive if you try to use it like this,right now the set might have loose conections in the power supply,horizontal driver transformer.ETC.Be safe and call a service tech.
The on and off conditions is repairable and is not the tube,you should have it check out for loose conections and try not to use it or it will go bad for good and the repair will become expensive,Check power supply,horizontal driver transformer and crt board,If you are not familiar with tv service be safe and call for help.
Is good that you hit it and it reacts,very likely you have loose conections in different places but for the distorted picture you need to check the horizontal driver transformer and flyback after that is corrected you need to check the complete chassis for loose conections.Take your time.Good luck.