| Need follow-up for a convergence repair, please
I have a JVC RPTV model AV-48W30, and I have completed a convergence repair myself. I must first say thank you to lcaillo and all your helpful information. You persuaded me to attempt the repair myself because of all your good information. I replaced the convergence ICs only since a close inspection of the resistors seemed to show no burning or shorting there. I don't have a meter to check them anyway, and I'm not sure exactly how to do that, and it seemed like most folks in the threads I read were getting good results from just replacing the ICs. I tried to follow all your advice as best I could. I bought genuine Sanyo parts from one of your recommended suppliers, and decided not to try upgrading them to a different chip since some suggested that resistor failure might result. So I replaced them with the original part, STK392-110s. I smeared a thin layer of thermal compound on the chips, and tried my best to get mostly metal to metal contact. The soldering proceeded without incident, and I used a 40W iron and eutectic 63/37 lead solder, removing the iron as soon as the connection was made. I have put it all back together and adjusted the convergence several times, and I keep having it move slightly out of adjustment, and then almost back in again. It seems to be mainly horizontal alignment only, and it's only in a small area of the screen, and not a large amount, but it's enough to see with a regular picture on the set. Does this mean that resistors should also be changed, or could this be a number of different problems too hard to diagnose without actually seeing the set? I would value your help here....thanks.
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