Television and Home Theater

Hello,I have a KP46WT500 with a problem with convergence.I've read through almost every post on problems of this nature and desided to try and fix myself.I have a service manual for this set and have read it and I think I have a basic understanding for the repair.I ordered the convergence IC's STK392-560.And when they arrived the company shipped STK392-570.I called them to question the mistake and they told me the part was an upgrade.It looks exactly the same.Should I be concerned about using this part?A Pro's advice would be much appreciated.Thank You. &nbsp

Any suggestions?  My TV has a great picture but it will blink out, the screen will go black . You can still hear the sound.  If you tap the TV real quick the picture will come back on  and stay on great.  But if you bump it again or walk by it with heavy footsteps the picture will go out again.

Having red lines that are sinusoldal and can not adjust out with convergances adjustments.